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HomeMy WebLinkAbout20070047 Ver 1_Environmental Assessment_19961112 SECOND BRIDGE TO OAK ISLAND BRUNSWICK COUNTY, NORTH CAROLINA FROM SR 1104 TO NC 211 FEDERAL AID PROJECT NO. STP-1105(6) STATE PROJECT NO. 8.2231201 T.I.P. NO. R-2245 Administrative Action Environmental Assessment Submitted Pursuant to the National Environmental Policy Act 42 U.S.C. 4332 (2)(c) by the U.S. Department of Transportation Federal Highway Administration and North Carolina Department of Transportation Cooperating Agency Department of the Army, Corps of Engineers ? .-7 06) / r &. 5w'c1( a-1 This assessment documents the need for transportation improvements for access to Oak Island in Brunswick County. Existing and projected conditions in the study area are described, and corridors are evaluated with respect to costs, social and ec9nomic impacts, and environme94al consequences. ////-2- 9v Da (e of Ap roval 7,-// e9 Date of Approval I r-e2 The following persons may be contacted for additional information concerning this document: Mr. Nicholas L. Graf, P.E. Division Administrator Federal Highway Administration 310 New Bern Avenue Suite 410 Raleigh, NC 27601 (919) 856-4346 Mr. H. Franklin Vick, P.E., Manager Planning and Environmental Branch NC Department of Transportation P.O. Box 25201 Raleigh, NC 27611 (919) 733-3141 Comments must be received by Mr. H. Franklin Vick, P.E., Mana er of Planning and Environmental Branch, NCDOT, P.O. Box 25201, Raleigh, NC 27611 by: y 3e Y? I H. Franklin Vick, P.E. - NCUOT Manager of Planning and Environmental Branch I SECOND BRIDGE TO OAK ISLAND BRUNSWICK COUNTY, NORTH CAROLINA FROM SR 1104 TO NC 211 Federal Aid Project No. STP-1105(6) State Project No. 8.2231201 T.I.P. No. R-2245 ADMINISTRATIVE ACTION ENVIRONMENTAL ASSESSMENT Documentation Prepared by: DSAtlantic Corporation ?auu,+n,p .• ES31 Date . Keith D. Lewis, P.E. SEAL Vice President 14118 a Project Manager i FNS I tiE?0' g Documentation Prepared For: ' NORTH CAROLINA DEPARTMENT OF TRANSPORTATION D to L. Ga'1 rimes, E. Project Engineer I4 ?- /1// 2 qG IMF-t? ' Date Philip S. 44arris, III, P.E. Project Planning Engineer I EXECUTIVE SUMMARY I S.1 FEDERAL HIGHWAY ADMINISTRATION ' Administration Action Environmental Assessment 1 S.2 CONTACTS ' The following individuals may be contacted for additional information concerning this Environmental Assessment: Federal Highway Administration Mr. Nicholas L. Graf, PE ' Division Administrator Federal Highway Administration 310 New Bern Avenue, Suite 410 Raleigh, North Carolina 27601 ' Telephone: (919) 856-4346 ' North Carolina Department of Transportation Mr. H. Franklin Vick, PE, Manager Planning and Environmental Branch North Carolina Department of Transportation P.O. Box 25201 ' Raleigh, North Carolina 27611 Telephone: (919) 733-3141 S.3 DESCRIPTION OF THE PROPOSED ACTION The proposed action is the construction of a high-rise bridge over the Atlantic Intracoastal Waterway, from SR 1105 (Middleton Avenue) to the mainland and the construction of a two-lane roadway on new location with,partial-control-of-access'from the waterway to just north of NC 211 at SR 1500 (Midway Road) in Brunswick County. The action includes widening the existing two-lane SR 1105 from SR 1104 (Beach Road) to the Atlantic Intracoastal Waterway and replacing of Bridge No. 206 over Davis Canal. The proposed action is identified in the 1997- 1 S-1 2003 North Carolina Department of Transportation (NCDOT) Transportation Improvement Program (TIP) as R-2245. Brunswick County rates the Second Bridge to Oak Island as the most important project in the county. Exhibit 1.1.1 shows the study area and the existing road system. The proposed Second Bridge to Oak Island would improve the level of service on the existing road system by increasing traffic capacity and would provide additional access onto and off of the island. The results of this action would be a reduction in vehicle hours of travel; improvements in travel speeds; reduction in traffic accidents, injuries and fatalities; savings in cost to the traveling public; improvements in emergency evacuation times and routes for a natural disaster or a nuclear accident at the nearby Brunswick Nuclear Power Plant; enhanced economic development potential; improved access to public facilities; and improved access for emergency vehicles. These factors would improve the accessibility of Oak Island for its' residents and visitors. S.4 OTHER GOVERNMENTAL ACTIONS REQUIRED A Section 9 permit from the US Coast Guard and a Section 404 permit from the US Army Corps of Engineers will be required. A 401 Water Quality Certification from the North Carolina Department of Health, Environment, and Natural Resources (DEHNR), Division of Environmental Management and a CAMA permit from DEHNR, Division of Coastal Management will be required also. S.5 ALTERNATIVES CONSIDERED Second Bridge Alternatives - Preliminary second bridge alternatives were developed with the use of "Land Suitability Mapping". Initial studies and evaluations reduced the number of preliminary second bridge alternatives to five, Alternatives A, B, C, D, and E. Field studies S-2 and detailed environmental determinations were completed for each alternative. These ' alternatives are shown in Exhibit 1. 1.2 and described below. 1 Alternative A begins at SR 1104 (Beach Drive) and extends along SR 1105 (Middleton Avenue), across Davis Canal, to the intersection with SR 1190 (Oak Island Drive) before rising to cross Yacht Drive and the Intracoastal Waterway. After crossing the Intracoastal Waterway, Alternative A turns in a westerly direction toward Mercers Mill Pond before turning to the northeast to intersect with NC 211 approximately 840 meters (2755 feet) west of the existing NC ' 211/SR 1500 intersection. Alternative A ends at SR 1500 approximately 1415 meters (4641 feet) I north of the NC 211/SR 1500 intersection. Alternative A is 9.39 kilometers (5.83 miles) long Alternative B follows the same alignment as Alternative A until it crosses the Intracoastal Waterway. After crossing the Intracoastal Waterway, Alternative B follows a northeasterly direction until it intersects with NC 211 at SR 1500. Alternative B is 7.55 kilometers (4.69 I miles) long. ' Alternative C follows the same alignment as Alternative A and B until it crosses the Intracoastal Waterway. After crossing the Intracoastal Waterway, Alternative C turns to the east towards Saint James Plantation before turning to the northwest to intersect with NC 211 at SR 1500. Alternative C is 8.27 kilometers (5.14 miles) long. I Alternative D follows the same alignment as Alternatives A, B, and C until it crosses the ' Intracoastal Waterway. After crossing the waterway, Alternative D turns to the west and parallels the waterway on new location before merging with SR 1112 (Sunset Harbor Road). From that point, SR 1112 would be upgraded to it's intersection with NC 211. Alternative D is 12.38 kilometers (7.68 miles) of construction length with a total travel length of 18.38 S-3 kilometers (11.40 miles). Alternative E begins at SR 1104 and turns off of SR 1105 and follows SR 1190 (West Oak Island Drive) to the west end of the island where it crosses the Intracoastal Waterway and then ties to SR 1112. As with Alternative D, SR 1112 will be upgraded to it's intersection with NC 211. Alternative E is 12.14 kilometers (7.53 miles) of construction length with a total travel length of 18.48 kilometers (11.25 miles). Following detailed evaluation, Alternatives D and E were determined not to be reasonable and feasible and were eliminated from further consideration. Alternatives A, B, and C would each require a minimum of 30 meters (98 feet) of right-of-way. Improve Existing Alternative - The Improve Existing Alternative, widening and upgrading NC 133 from NC 211 to SR 1104 and SR 1104 from NC 133 to SR 1105 (Middleton Avenue) was not considered for this project because it does not meet one of the project's purposes and needs; to provide a second access to Oak Island. Although widening the existing roadway and bridge would increase the traffic capacity, it would not improve the access to and from the island, especially for residents on the west end of the island. All vehicles would still be brought on the island from the east. Therefore, the Improve Existing Alternative was not considered a viable alternative. No-Build Alternative - The No-Build Alternative would forego any improvements to the existing roadway system to and on Oak Island, with the exception of routine maintenance. The existing roadway and bridge would remain the only access onto and off of the island and NC 133 would continue to be a two and three-lane roadway from NC 211 to SR 1104. S-4 The No-Build Alternative would not be compatible with the transportation goals of Long Beach, 1 Brunswick County, and North Carolina which are: to improve the safety and efficiency of travel accessing Oak Island by providing a second roadway and bridge to the island. Because the transportation needs and objectives would not be met by the No-Build Alternative, local ' governments would be hampered in their efforts to provide improved transportation services to existing development and to attract new development and tourism. However, the No-Build ' Alternative provides a basis for comparing the adverse impacts and benefits of the Second Bridge Alternatives. ' Transportation Systems Management (TSM) Alternative - Transportation Systems Management (TSM) improvements involve increasing the available capacity of the existing facility with minimum capital expenditures and without reconstructing the existing facility. Items such as the addition of turn lanes, striping, signing, signalization and minor realignments are examples of ' TSM physical improvements. Traffic law enforcement, speed restrictions, access control and signal timing changes are examples of TSM operational improvements. These improvements were considered but would not improve the levels of service on NC 133. In addition, they ' would not be consistent with the purpose of the project; to provide a second access to the island. Therefore, the TSM Alternative is not considered a reasonable and feasible alternative. Mass Transit Alternative - The Mass Transit Alternative was eliminated from consideration because it would not address the purpose of and need for the project. ' S.6 SUMMARY OF IMPACTS Relocations - An estimated 10 residences and 1 business on Oak Island may be displaced by ' Alternatives A, B, and C. These residents and businesses are located along SR 1105 (Middleton Avenue). 1 S-5 Land Use - The project study area lies within the planning jurisdiction of both Brunswick County and the Town of Long Beach. Both land use plans have identified a future need for urban services in the project study area due to anticipated growth. Alternatives B and C lie mainly in the area classified as urban transition. Alternative A lies mainly in an area designated as rural, skirts an area classified as a conservation area, and crosses an area classified as urban transition. Although all of the alternatives would be consistent with the land use plans adopted by Brunswick County and the Town of Long Beach, Alternatives B and C lie more fully in the area identified as urban transition. Secondary and Cumulative Impacts - The mainland area between NC 211 and the Intracoastal Waterway will be developed by 2020, with or without the Second Bridge, as evidenced by the development plans of St. James Plantation. Therefore, no long term secondary and cumulative impacts are anticipated due to the proposed project. Community Facilities - The construction of the Second Bridge would facilitate access to the public beaches. All three alternatives would impact a public walkway and parking access area to the Intracoastal Waterway which is located at the end of Middleton Avenue. Care will be taken to avoid or minimize impacts to this estuarine access. If necessary, relocation of the access will be accomplished in coordination with the Town of Long Beach. None of the proposed alternatives would directly impact schools in the project study area. A second bridge would give Brunswick County Board of Education fresh alternatives for providing the most direct and efficient school bus transportation system for area students. Churches located both on the island and on the mainland may benefit from the increased accessibility that would be provided to permanent residents and tourists with a second bridge. S-6 I No known cemeteries would be impacted by any of the alternatives. Utilities - Existing utilities potentially affected by Alternatives A, B, and C include water distribution lines on Oak Island, telephone cables and cable television lines on the mainland and telephone cables on the island. Existing utilities that are not anticipated to be affected include a 69 kilovolt transmission line, an electrical power substation, a water storage tower and a remote telephone office hub. I Hazardous Materials Sites and Underground Storage Tanks - Alternative A could potentially ' impact one underground storage tank site, the Beach Pantry, on Middleton Avenue. Alternatives B and C could potentially impact the Beach Pantry as well as an underground storage tank site ' at the Midway Trading Post, located at the intersection of SR 1500 and NC 211. Archaeological Resources - Presently, there are no archaeological sites in the study area listed in the National Register of Historic Places. Based on the results of the archaeological and historical background report prepared for the project, the probability of archaeological sites ' occurring within the study area is low. The most probable location for archaeological sites is along the rims of the Carolina Bays. If the Preferred Alternative impacts any of the Carolina Bays in the study area, an archaeological survey of the bay and the rim area will be conducted. Historic Architectural Resources - Based on the results of the historic architectural survey, there are no properties listed in or eligible for listing in the National Register of Historic Places within the area of potential effect for the project. The SHPO concurred with this determination on February 23, 1995 (See Appendix A). The Historic Architectural Survey Report is on file at NCDOT and available for review. 1 S-7 Air Quality - Brunswick County was determined to be in compliance with the National Ambient Air Quality Standards. 40 CFR part 51 is not-applicable because the proposed project is located in an attainment area. None of the receptors studied for Alternatives A, B, and C in the Air Quality Analysis were projected to approach or exceed either the one-hour or eight-hour concentrations set forth by the National Ambient Air Quality Standards. However, the No-build Alternative is expected to exceed the eight-hour concentration standards, at a distance of 15 meters (49 feet) from the existing centerline, for six of the ten locations analyzed. Noise - Traffic noise impacts occur when the predicted traffic noise levels either approach or exceed the FHWA noise abatement criteria (67 dbA for residences and 72 dbA for businesses), or substantially exceed the existing noise levels. By the Design Year 2020, the number of receptors approaching or exceeding the criteria is estimated to be 62 for Alternative A and 60 for Alternatives B and C. Because all the impacted receptors have driveway connections that must be maintained, it was determined that noise barriers are not considered reasonable and are not recommended for this project. Mineral Resources - The Yellow Banks confined (diked) disposal facility (CDF), located along the north side of the Intracoastal Waterway, would be impacted by Alternatives A, B, and C. The encroachment onto the Yellow Banks CDF is estimated to be 5 hectares (12 acres) for Alternatives A and B, and 6 hectares (15 acres) for Alternative C. No other known mineral resources would be impacted by any alternative. Coordination with the United States Army Corp of Engineers (USACOE) will continue concerning the use of this material. Water Qualiy - The proposed action would increase the overall stormwater runoff from the existing roadway system because of the increase in pavement surface. This runoff would contain small amounts of pollutants such as oil, grease and lead. However, because of the 12w=toy S-8 i medium. ayerage_diily-traffic-volumes-predicted-for-this-facility-no-substantial-adverse=impacts due-to-runoff-are-anticipated7 More important than the actual amount of runoff, may be the proximity of such runoff-to-high-quality waters-(HQW):_Altemative=A crosses-several.tributaries-I - of Mercers-Mill-Creek-j- a=HQW-zonei?Alternative C skirts -the-edge-of-a_HQW=zone-draining? to (Ash=Swamp-Alternative_B_does-not-affect-any-HQW-zones Biotic Community Impacts - The proposed project would disrupt an otherwise forested area with a graded and compacted road corridor that would level the microtopography and permanently replace vegetation with impervious surface cover. These changes would (1) reduce available habitat for plants, (2) fragment plant communities, (3) increase surface runoff that must be accommodated by residual plant communities, (4) possibly alter plant-water relationships by a changing the natural subsurface water movement, and (5) reduce available wildlife habitats by n the amount of area impacted. u Because the project area between Smith and the Intracoastal Waterway is almost completely forested, no substantial adverse impacts from fragmentation are expected for any of the alternatives. Alternative A would result in approximately 16.5 hectares (40.8 acres) of forested land losses, Alternative B, 13.4 hectares (33.1 acres), and Alternative C, 15.4 hectares (38.0 acres). CWetland- p I - Based on wetland determinations, the potential wetlands occurring in the proposed right-of-way is 2.9 hectares (7.2 acres) for Alternative A, 4.0 hectares (9.9 acres) for Alternative B, and 2.6 hectares (6.4 acres) for Alternative C. Wetland impacts within the Preferred Alternative will be avoided and minimized to the fullest extent practicable during the design phase of the project. S-9 Rare and Protected Species - For ten of the fifteen species currently listed as threatened or endangered by the U.S. Fish and Wildlife Service, conclusions of no effect were determined based on lack of habitat for nesting, roosting or foraging in the project area. For the West Indian Manatee, the "Precautions For General Construction In Areas which may be used by the West Indian Manatee in North Carolina" issued by the U.S. Fish and Wildlife Service on July 3, 1996 will be implemented. Habitat surveys for the remaining three species were conducted in August and October 1996. A "no effect" was determined for cooley's meadowrue and roughleaved loosestrife, and a "not likely to adversely affect" was determined for the red- cockaded woodpecker. Preliminary Cost Estimate - Preliminary cost estimates were completed based on the functional designs for the alternatives. The estimated right-of-way and construction costs are approximately $4.2 million and $13.3 million, respectively, for Alternative A, approximately $3.7 million and $12.3 -million, respectively, for Alternative B, and approximately $4.0 million and $12.6 million, respectively, for Alternative C. S.7 RECOMMENDED ALTERNATIVE The recommended alternative will be selected following a corridor public hearing. Comments received at the hearing and on the Environment Assessment will be considered in this selection. S.8 ENVIRONMENTAL COMMITMENTS The North Carolina Department of Transportation will make every effort to minimize impacts to the natural environment. Impact minimization will be accomplished by adhering to strict guidelines and specifications adopted by the State of North Carolina. S-10 Q a 1. If the Preferred Alternative impacts any of the Carolina Bays in the study area, an a archaeological survey of the bay and the rim will be conducted. 2. Each hazardous material and underground storage tank site in the right-of-way limits of the Preferred Alternative will be monitored including regulatory status, site visits, interviews with property owners and on-site analysis. An assessment will be performed a to the degree necessary to determine the levels of contamination and to evaluate remediation options along with the associated acquisition costs. Resolution of problems associated with contamination will be coordinated with appropriate regulatory agencies and, prior to right-of-way acquisition, appropriate actions will be taken where applicable. a Q777 dmpacts to__the_water'quality of all receiving waters-will-be-minimized-by-strict-adherence-`j to-the-North-Carolina-Department-of_Transportation's-"BEstManagement-Practices-for CP-rotection-of-Surface Waters; "-June 1991- 4. Wetland delineations will be conducted within the Preferred Alternative prior to preliminary design. Every effort will be made to avoid and to minimize the wetlands a impacts through the location and design of the roadway facility within the corridor. Mitigation of unavoidable wetland impacts will be coordinated with the appropriate state 0 and federal regulatory agencies. A-conceptual-wetland-m tigation-plan'will be, included in-the,final-environmental-document 5. Hydraulic structures will be designed to assure there will be a minimal increase in the water surface elevation during the base flood. Additional hydraulic surveys and analyses, a for both major and minor stream crossings, will be performed during the design phase to accurately locate the stream channels, tops of banks, and other topographic features. a S-1I a 6 7 8. 9 Coordination with the US Army Corp of Engineers will continue to minimize the impact to the Yellow Banks confined (diked) disposal facility (CDF). Care will be taken to avoid or minimize impacts to the Intracoastal Waterway access at the end of Middleton Avenue. If necessary, relocation of the access will be accomplished in coordination with the Town of Long Beach. In areas of noise impacted receptors where abatement measures have been considered and found not to be reasonable, a vegetative barrier may be considered for aesthetic screening. The U.S. Fish and Wildlife Service has developed recommendations for general construction activities in aquatic areas which may be used by the manatee. The following conditions should be implemented throughout the year: a. b. The project manager and/or contractor will inform all personnel associated with the project that manatees may be present in the project area, primarily during the months of June through October, and the need to avoid any harm to these endangered mammals. The project manager will ensure that all construction personnel know the general appearance of the species and their habit of moving about completely or partially submerged in shallow water. All construction personnel will be informed that they are responsible for observing water-related activities for the presence of manatees. The project manager and/or the contractor will advise all construction personnel S-12 I that there are civil and criminal penalties for harming, harassing, or killing ' manatees which are protected under the Marine Mammal Protection Act of 1972 and the ESA. ' c. If a manatee is seen within 100 yards of the active construction/dredging operation or vessel movement, all appropriate precautions will be implemented to ensure protection of the manatee. These precautions will include the immediate shutdown of moving equipment if a manatee comes within 50 feet of ' the operational area of the equipment. Activities will not resume until the manatee has departed the project area on its own volition. d. Any collision with and/or injury to a manatee will be reported immediately. The report must be made to the Service's manatee coordinator in Jacksonville, Florida ((904) 232-2580), the Raleigh Field Office ((919) 856-4520), and the North ' Carolina Wildlife Resources Commission ((919) 224-1288). The project manager should coordinate with the Service immediately prior to the start of construction for the name and current telephone number of the individuals to be contacted. e. A sign should be posted in all vessels associated with the project where it is ' clearly visible to the vessel operator. The sign should state: CAUTION: The endangered manatee may occur in these waters during the ' warmer months, primarily from June through October. Idle speed is required if ' operating this vessel in shallow water during these months. All equipment must be shut down if a manatee comes within 50 feet of operating equipment. A collision with and/or injury to a manatee will be reported immediately to U.S. Fish and Wildlife Service at (919) 856-4520 and the North Carolina Wildlife ' 5-13 Resources Commission at (919) 224-1288. f. The contractor will maintain a log detailing sightings, collisions, or injuries to manatees during project construction. After construction the project manager will prepare a report which summarizes all information on manatees during construction. This report will be submitted to the Service's Raleigh Field Office and NCWRC. The following conditions will only be required for construction during the period from June 1 through October 31, the period when manatees are most likely to be in North Carolina: g. All vessels associated with the construction project will operate at "no wake/idle" speeds at all times while in water where the draft of the vessel provides less than a four-foot clearance from the bottom. All vessels will follow routes of deep water whenever possible. h. If siltation barriers must be placed in shallow water, these barrier will be: (a) made of material in which manatees cannot become entangled; (b) secured in manner that they cannot break free and entangle manatees; and (c) regularly monitored to ensure that manatees have not become entangled. Barriers will be placed in a•manner to allow manatees entry to or exit from essential habitat. S-14 Y I I S-15 I TABLE S.1 ENGINEERING AND ENVIRONMENTAL CONSEQUENCES a n a a a 1 TABLE OF CONTENTS SECTION PAGE EXECUTIVE SUMMARY .................................. . S-1 1.0 PURPOSE OF AND NEED FOR ACTION ................... . 1-1 1.1 PROJECT SETTING ............................. . 1-1 1.1.1 Description of the Proposed Action ................ . 1-1 1.1.2 Project History ................ . . 1-5 1.2 SYSTEM LINKAGE .............................. . 1-6 1.2.1 Existing Interstate and US Routes ................. . 1-6 1.2.2 Other Area Facilities ......................... . 1-7 1.3 SOCIAL AND ECONOMIC DEVELOPMENT ............. . 1-7 1.4 PLANNED AND PROGRAMMED ROADWAY IMPROVEMENTS . 1-9 1.5 HIGHWAY CAPACITY ........................... 1-10 1.5.1 Existing Highway ..................... ...... 1-10 1.5.2 Traffic Capacity Analysis ................ ...... 1-11 1.5.3 Existing and Base Year Traffic Conditions ...... ...... 1-12 1.5.4 Future Traffic Conditions ................ ...... 1-15 1.5.5 Accident Analysis ..................... ...... 1-18 1.5.6 Emergency Evacuation .................. ...... 1-24 1.6 MODAL INTERRELATIONSHIPS ............... ...... 1-25 1.6.1 Transit and Rideshare ................... ...... 1-25 1.6.2 Rail Service ......................... ...... 1-25 1.6.3 Airports ........................... ...... 1-25 1.7 SUMMARY OF PROJECT NEED ............... ...... 1-26 2.0 ALTERNATIVES ............................. ....... 2-1 2.1 NO-BUILD ALTERNATIVE .................. ....... 2-1 i 2.2 TRANSPORTATION SYSTEMS MANAGEMENT ALTERNATIVE . 2-2 2.3 MASS TRANSIT ALTERNATIVE ..................... . 2-3 2.4 IMPROVE EXISTING ALTERNATIVE .................. . 2-3 2.5 SECOND BRIDGE ALTERNATIVES ................... . 2-4 2.5.1 Study Area ............................... . 2-4 2.5.2 Development of Preliminary Alternatives ............. . 2-5 2.5.3 Second Bridge Alternatives ..................... . 2-8 2.6 ROADWAY DESIGN CRITERIA ...................... 2-11 2.7 ALTERNATIVE COST ESTIMATES ................... 2-13 2.8 TRAFFIC CAPACITY ANALYSIS FOR THE SECOND BRIDGE ALTERNATIVES ............................... 2-15 2.9 ALTERNATIVES ELIMINATED FOLLOWING DETAILED STUDY ...................................... 2-19 2.10 RECOMMENDED ALTERNATIVE .................... 2-19 3.0 AFFECTED ENVIRONMENT ......................... ... 3-1 3.1 GENERAL CHARACTERISTICS OF THE PROJECT AREA .. ... 3-1 3.2 SOCIOECONOMIC CHARACTERISTICS .............. ... 3-4 3.2.1 Population Characteristics .................... ... 3-4 3.2.2 Employment and Economic Characteristics .......... ... 3-9 3.2.3 Neighborhood and Community Cohesion ........... .. 3-14 3.3 COMPREHENSIVE LAND USE AND TRANSPORTATION PLANNING ................................. .. 3-14 3.3.1 Existing Land Use ......................... .. 3-14 3.3.2 Land Use Planning ........................ .. 3-16 3.3.3 Transportation Planning ..................... .. 3-17 3.3.4 Emergency Evacuation Planning ................ .. 3-18 3.4 CULTURAL RESOURCES ........................ .. 3-20 3.4.1 Schools ........................ .. .. 3-20 3.4.2 Churches and Cemeteries ..................... .. 3-21 3.4.3 Parks and Recreational Facilities ................ .. 3-21 ii ' 3.4.4 Additional Community Services ................... 3-24 3.4.5 Archaeological and Historic Architectural Properties ...... 3-24 3.5 UTILITIES ................................... 3-25 3.5.1 Electric Power Transmission ................. . . 3-25 3.5.2 Water Service ............................. . 3-26 3.5.3 Sewer Service ............................ . 3-26 ' 3.5.4 Natural Gas Service ......................... . 3-28 3.5.5 Communications ................ . . ... . 3-28 3.5.6 Railroads ......................... 3-28 ' 3.6 PHYS ICAL ENVIRONMENT ....................... . 3-28 ' 3.6.1 Floodplains and Floodways .................... . 3-28 3.6.2 Hydrology and Drainage ...................... . 3-29 3.6.3 Geology, Topography, and Soils ............. . . 3-29 ' 3.6.4 .. Mineral Resources . 3-34 3.6.5 Hazardous Material Sites and Underground Storage Tanks . . 3-34 ' 3.6.6 3.6.7 Air Quality .............................. Noise . 3-37 3-42 3.6.8 Prime, Unique, and Important Farmlands ............ . 3-49 ' 3.7 NATURAL RESOURCES ......................... . 3-49 3.7.1 Biotic Communities ......................... . 3-50 3.7.2 Water Resources 3-76 3.7.3 Waters of the United States . .................... . 3-78 3.7.4 Rare and Protected Species ..................... . 3-80 ' 3.7.5 Natural Areas 3-96 ' 4 0 ENV IRONM E TA C . N L ONSEOUENCES .................... .. 4-1 4.1 LAND USE IMPACTS ........................... .. 4-1 4.1.1 Development Trends and Land Use Plans Impacted ...... .. 4-2 4.1.2 Consistency with Comprehensive Development Plans ..... .. 4-2 4.1.3 Secondary Land Use Impacts ................... .. 4-5 4.1.4 Cumulative Impacts ......................... .. 4-7 4.2 SOCIAL IMPACTS ............................. . 4-10 ' 4.2.1 Changes in Neighborhoods and Community Cohesion .... . 4-10 4.2.2 Changes in Travel Patterns and Accessibility .......... . . 4-10 4.2.3 Impacts on Specific Social Groups ................ . 4-12 1 4.2.4 Relocation Impacts .. . 4-12 iii 4.2.5 Considerations Relating to Pedestrians and Bicyclists ...... 4-16 4.2.6 Emergency Evacuation ........................ 4-16 4.3 ECONOMIC IMPACTS ............................ 4-17 4.3.1 Regional and Local Economy .................... 4-18 4.3.2 Existing Highway-Related Businesses ............... 4-18 4.3.3 Established Business Districts .................... 4-19 4.3.4 Secondary Economic Impacts .................... 4-20 4.4 CULTURAL RESOURCE IMPACTS ................. .. 4-21 4.4.1 Schools ............................... .. 4-21 4.4.2 Churches and Cemeteries ..................... .. 4-21 4.4.3 Parks and Recreational Facilities ................ .. 4-21 4.4.4 Archaeological and Historical Properties ........... .. 4-22 4.4.5 Section 4(f) of the Department of Transportation Act .... .. 4-22 4.5 UTILITY IMPACTS ............................ .. 4-22 4.5.1 Electric Power Transmission ................... .. 4-22 4.5.2 Water Service ............................ .. 4-23 4.5.3 Sewer Service ...................... ... .. 4-23 4.5.4 Natural Gas Service ........................ .. 4-24 4.5.5 Communications .......................... .. 4-24 4.5.6 Railroads .............................. .. 4-24 4.6 PHYS ICAL ENVIRONMENT IMPACTS ............... .. 4-25 4.6.1 Floodplain Impacts ........................ .. 4-25 4.6.2 Hydraulic Impacts ......................... .. 4-25 4.6.3 Geology, Topography, and Soils ................ .. 4-26 4.6.4 Mineral Resources ......................... .. 4-27 4.6.5 Hazardous Material Sites/Underground Storage Tanks ... .. 4-28 4.6.6 Air Quality Impacts ........................ .. 4-30 4.6.7 Noise Impacts ......................... .. 4-31 4.6.8 Farmland Impacts ......................... .. 4-35 4.7 NATU RAL RESOURCE IMPACTS .................. .. 4-37 4.7.1 Biotic Communities ........................ .. 4-38 4.7.2 Water Resources ....................... .. .. 4-44 4.7.3 Waters of the U.S . ........................ .. 4-46 4.7.4 Rare and Protected Species .................... .. 4-50 4.7.5 Natural Areas ............................ .. 4-59 4.8 VISUAL IMPACTS .............................. 4-59 iv ' 4 9 CONSTRUCTION . IMPACTS .................... .... 4-60 4.9.1 Air Quality ........................... .... 4-61 4.9.2 Noise ............................... .... 4-61 4.9.3 Water Quality .......................... .... 4-62 4.9.4 Maintenance of Traffic .................... .... 4-62 4.9.5 Construction Materials and Waste ............. .... 4-63 ' 4.10 RELATIONSHIP BETWEEN LOCAL SHORT-TERM USES OF MAN'S ENVIRONMENT AND THE MAINTENANCE AND ENHANCEMENT OF LONG-TERM PRODUCTIVITY .. . 4-65 ' 4.11 IRREVERSIBLE AND .IRRETRIEVABLE COMMITMENTS OF RESOURCES WHICH WOULD BE INVOLVED IN THE PROPOSED ACTION ................................. .... 4-67 5.0 COMMENTS AND COORDINATION ............ 5-1 ' ...... ..... 5.1 AGENCY COORDINATION .................... ..... 5-1 ' 5.1.1 Scoping Letter ......................... ..... 5-1 5.1.2 Steering Committee ...................... ..... 5-1 5.1.3 Agency Field Review ..................... ..... 5-2 5.2 PUBLIC INVOLVEMENT ...................... ..... 5-2 ' 5.2.1 Mailing List ........................... ..... 5-3 5.2.2 Newsletters ..................... .. ..... 5-3 ' 5.2.3 Toll-Free Phone Hotline ................... ..... 5-4 5.2.4 Small Group Informational Workshops . 5-4 5.2.5 Citizens Informational Workshops ............. ..... 5-4 ' 5.2.6 Local Officials Informational Workshops ......... ..... 5-7 6.0 APPENDICES Appendix A - Coordination A.1 Agency Comments ' A.2 AD-1006 Forms A.3 Relocation Reports A.4 Yellow Banks Coordination ' Appendix B - Public Involvement Materials ' Appendix C - References 1 v EXHIBITS PAGE 1.1.1 Study Area Map ............................. 1-3 1.1.2 Second Bridge Alternatives ...................... 1-4 1.5.1a Average Daily Traffic Volumes, 1994 Existing Year ...... 1-13 1.5.1b Average Daily Traffic Volumes, 2000 Base Year ........ 1-14 1.5.2 Average Daily Traffic Volumes, 2020 Design Year ...... 1-17 1.5.3 Accident Frequency .......................... 1-20 2.5.1 Preliminary Alternatives ........................ 2-9 2.6.1 Typical Sections ............................ 2-14 2.8.1 Average Daily Traffic Volumes, 2020 Alternatives A, B, and C 2-17 2.8.2 Average Daily Traffic Volumes, 2020 Alternatives D and E . 2-20 3.3.1 Generalized Land Classification Map ............... 3-19 3.4.1 Community Facilities and Services ................. 3-22 3.5.1 Utilities ................................. 3-27 3.6.1 Floodplains ............................... 3-30. 3.6.2 Mineral Resources ........................... 3-35 3.6.3 Hazardous Material Sites and Underground Storage Tanks .. 3-38 3.6.4 Air Quality Receptors ......................... 3-43 3.6.5 Noise Monitoring Locations ..................... 3-48 3.7.1 Wetlands ................................. 3-81 4.1.1 Induced Impact Area .......................... 4-3 vi I I TABLES PAGE S.1 Engineering and Environmental Consequences .............. 5-15 1.5.1 No-Build Alternative, Level of Service for Roadway Segments .... 1-16 1.5.2 No-Build Alternative, Intersection Level of Service ....... .. 1-16 1.5.3 Accident Analysis Summary, 11/01/91 Through 10/31/94 1-19 1.5.4 Accident Summary, 11/01/91 Through 10/31/94 ............. 1-22 1.5.5 Accident Frequency by Month and Day of Week ............. 1-23 2.5.1 Preliminary Evaluations ................... 2-11 2.6.1 ......... Roadway Design Criteria ...................... 2-12 2.7.1 Second Bridge Alternatives Cost Comparisons .............. 2-13 2.8.1 2.8.2 Alternatives A, B, and C Level of Service for Roadway Segments .. 2-15 Alternatives A, B, and C Intersection Level of Service with Recommended Revisions ..................................... 2-16 2.8.3 3.2.1 Alternatives D and E Level of Service for Roadway Segments .... Population Trends of Lockwoods Folly and Smithville Townships, 2-18 The Town of Long Beach, Brunswick County, and North Carolina .. . 3-5 3.2.2 Racial Characteristics of Lockwoods Folly and Smithville Townships, Brunswick County, and North Carolina . 3-7 3.2.3 Population by Age Group Within Lockwoods Folly and Smithville Townships, Brunswick County, and North Carolina ........... . 3-8 3.2.4 Civilian Labor Force and Percent Unemployed for Brunswick County and North Carolina ............................... 3-10 ' 3.2.5 Employment by Industry Groups of Lockwoods Folly and Smithville Townships, The Town of Long Beach, Brunswick County, and North Carolina ......................... 3-11 ' 3.2.6 Per Capita Personal Income for Brunswick County and North Carolina ................... 3-12 3.2.7 Commuting to Work and Mean Travel Time for Lockwoods ' Folly and Smithville Townships, Brunswick County and North Carolina ................ .... .. 3-13 3.6.1 Soils Mapped in the Study Area ............... 3-32 3.6.2 Mobile5A/Cal3QHC Input Parameters ................... 3-42 3.6.3 Noise Abatement Criteria ........................... 3-45 3.6.4 Ambient Noise Levels ................. 3-47 3.7.1 Relative Value of Habitat Types in the Study Area ........... 3-74 3.7.2 Federally Listed Endangered and Threatened Species for Brunswick County ............................... 3-83 ' 3.7.3 State-Protected Species Listed 3-92 3.7.4 Typical Habitat and Habitat Occurrence of Species Considered for Federal Listing as Endangered or Threatened in Brunswick County 3-94 ' vii TABLES (CONTINUED) PAGE 4.2.1 Estimated Number of Relocations ..................... . 4-13 4.6.1 Design Year 2020 One-Hour/Eight-Hour CO-Concentrations .... . 4-31 4.6.2 FHWA Noise Abatement Criteria Summary ............... . 4-33 4.6.3 Traffic Noise Level Increase Summary - Receptor Exterior Noise Level Increases ........................... ... . 4-33 4.7.1 Area of Each Corridor by Land Use and Aquatic Categories ..... . 4-38 4.7.2 Forestland in Proposed Alternative Corridors by Forest Type and Age Class ......................... . . 4-39 4.7.3 Area of Forestland Types Impacted by Right-of-Way ......... . 4-42 4.7.4 Stream Characteristics in Alternative A and Alternative C ...... . 4-45 4.7.5 Approximate Extent of Wetland in Corridor .............. . 4-47 4.7.6 Approximate Extent of Wetland in Right-of-Way ........... . 4-49 4.7.7 Biological Conclusion Concerning Federally Protected Species ... . 4-52 4.7.8 Allowable Suitable Habitat for Protected Species Alternative Corridors ............................ . 4-55 4.7.9 Available Red-cockaded Woodpecker Habitat .............. . 4-58 4.11.1 Engineering and Environmental Consequences ............. . 4-69 viii I 1 1.0 PURPOSE OF AND NEED FOR ACTION The purpose of this Environmental Assessment is to fully document the various build and no- build alternatives evaluated for a second bridge to Oak Island. Section 1 of this report ' documents the purpose of and need for the Second Bridge to Oak Island project and describes the existing and proposed transportation system within the study area. Documentation of the alternatives selection process, as well as descriptions of the ' preliminary alternatives, the alternatives chosen for more detailed study, and the alternatives ' eliminated following detailed study is found in Section 2. Section 3 of this report describes the existing social, economic, and environmental settings within the study area. The probable social, economic and environmental effects of the three build alternatives and 1 the proposed mitigation measures are presented in Section 4. I 1.1 PROJECT SETTING 1.1.1 Description of Proposed Action The proposed action is the construction of a high-rise bridge over the Atlantic Intracoastal Waterway from SR 1105 (Middleton Avenue) to the mainland and the construction of a two- lane roadway, on new location, from the waterway to just north of NC 211 at SR 1500 (Midway Road). Middleton Avenue, a state route from SR 1104 to SR 1190 (Oak Island ' Drive), would be widened from SR 1104 to the Atlantic Intracoastal Waterway including the replacement of Bridge No. 206 over Davis Canal, as a part of this project. The proposed action is identified in the 1997-2003 North Carolina Department of Transportation (NCDOT), Transportation Improvement Program (TIP) as R-2245. Brunswick County rates 1 ' 1-1 the Second Bridge to Oak Island as the most important project in the county. Exhibit 1.1.1 shows the study area and the existing road system. The proposed Second Bridge to Oak Island would improve the level of service on the existing road system by increasing traffic capacity and would provide additional access onto and off of the island. The results of this action would be a reduction in vehicle hours of travel; improvements in travel speeds; reduction in traffic accidents, injuries and fatalities; savings in cost to the traveling public; improvements in emergency evacuation times and routes for a natural disaster or a nuclear accident at the nearby Brunswick Nuclear Power Plant; enhanced economic development potential; improved access to public facilities; and improved access for emergency vehicles. These factors would improve the accessibility of Oak Island for its' residents and visitors. Several alternative corridors for the Second Bridge to Oak Island were developed based upon information obtained during the planning process; comments and concerns raised at the two citizens informational workshops and at the Steering Committee meetings; and correspondence from state and federal regulatory agencies and organizations. Five second bridge alternatives were selected for detailed study, Alternatives A, B, C, D, and E. The second bridge alternatives are represented by 150 meter (500 foot) corridors to provide flexibility for minimizing impacts to the natural and human environment during design. In addition to the five second bridge alternatives, the following four alternatives were studied: (1) No-Build or "Do Nothing" Alternative, (2) Transportation Systems Management (TSM) Alternative, (3) Mass Transit Alternative and (4) the Improve Existing Alternative. Exhibit 1. 1.2 shows the five second bridge alternatives. These alternatives are discussed further in Section 2. 1-2 I 1 1.1.2. Project History ' Discussions by Long Beach Commissioners for a second bridge over the Intracoastal Waterway at Middleton Avenue was begun as far back as 1960, at which time Oak Island's only link to the mainland was a swing bridge at NC 133. This former bridge was struck by ' a barge and destroyed in September, 1971. Ferry services and a temporary floating pontoon bridge provided the only means of accessibility during the three-and-a-half year construction ' period for the new high-level bridge which was opened on March 6, 1975. By the time this bridge was opened, CP&L's nuclear plant had been completed and the Pfizer Corporation had opened a new plant near Southport. Along with this growth came an increased need for ' a future second bridge to accommodate the tremendous growth on Oak Island and to provide a means of egress in the event of a natural or nuclear disaster. A resolution was passed by the Town of Long Beach Commissioners on January 17, 1970 1 recommending that the State Highway Commission build a bridge across the Intracoastal ' Waterway at Middleton Avenue. On May 5, 1977 the Town of Long Beach Commissioners passed another resolution asking that a second bridge be located at the end of the island to ' meet with SR 1112 at Sunset Harbor. This request was followed by a similar resolution ' passed by the Brunswick County Commissioners dated May 25, 1977. Studies conducted by the North Carolina Department of Transportation showed the most cost effective structure ' to be a crossing at Middleton Avenue, with an accompanying connection to NC 211 at SR 1500 on the mainland. In April, 1986, the North Carolina Board of Transportation requested the Town of Long Beach submit a resolution of support for a second bridge. This resolution ' in favor of the Second Bridge to Oak Island was passed on April 15, 1986. ' A Feasibility Study was completed in June, 1987 for the Second Bridge to Oak Island. The feasibility study made the following recommendation: "The most feasible method of 1-5 providing additional access to Oak Island is to extend SR 1105 (Middleton Avenue) across the waterway at a point referred to as Yellow Banks. The extension would intersect NC 211 at Smith where SR 1500 extends north to US 17 just south of Bolivia". This Second Bridge to Oak Island Corridor Study and Environmental Assessment began in October, 1994. Each of the previously recommended corridors was considered and evaluated as part of this study. The 1997-2003 NCDOT Transportation Improvement Plan indicates right-of-way acquisition for TIP No. R-2245 is scheduled to begin in Federal Fiscal Year 1997 and construction in Federal Fiscal Year 1998. 1.2 SYSTEM LINKAGE 1.2.1 Existing Interstate and US Routes There is no US route in the project study area. However, US 17, a north-south highway connecting cities and towns along the eastern coast of the United States, is easily accessible from the project area. Traveling north of the project on SR 1500, US 17 Bypass is approximately 11 kilometers (7 miles) from NC 211. The proposed project would give Oak Island a direct connection to US 17 while enhancing accessibility, emergency evacuation, and increasing traffic capacity to the island. Presently, the nearest interstate is I-40 which ends in Wilmington approximately 57 kilometers (35 miles) north of Oak Island. However, a proposed new interstate highway will traverse Brunswick County. I-74 will enter North Carolina from Virginia along I-77 in Surry County and will generally follow along US 52, US 311, US 220 and US 74 to west of Whiteville in Columbus County. From Whiteville, I-74 will cross Columbus and 1-6 I I Brunswick Counties northwest to northeast on new location and intersect US 17 approximately 30 miles south of the study area. I-74 will then follow US 17 into South Carolina. 1.2.2 Other Area Facilities NC 211 is the only major east-west arterial in the project area. It begins at the Cape Fear River, just northeast of Southport, and heads west to US 17 in Supply about 27 kilometers (17 miles) away. NC 211 continues in a northwest direction through Lumberton and Southern Pines before ending at US 220 in Montgomery County. NC 133, east of the project area, is the only existing access onto Oak Island and is the major route used to and from the Wilmington area and to 1-40. There are several secondary routes in the study area, several of which would intersect with the proposed project. These secondary facilities generally provide localized access for area residences and businesses. NC 133 carries all traffic onto and off of the island. The traffic is distributed on the island by SR 1104 and SR 1190, of which both intersect SR 1105. On the mainland the proposed project ends at SR 1500 which is the only connection from this area to US 17 Business near Bolivia and US 17 Bypass. The secondary routes connecting with the project are listed below with their common names: SR 1104 (Beach Road) SR 1190 (Oak Island Drive) SR 1105 (Middleton Avenue) SR 1500 (Midway Road) 1.3 SOCIAL AND ECONOMIC DEVELOPMENT The proposed Second Bridge to Oak Island would contribute innumerable benefits to the project study area and surrounding community as well as to tourists traveling to the area. 1-7 Local support for a second bridge has been substantial. Residents of Oak Island feel that ' a second bridge is a necessity for reasons of convenience as well as safety. , Traffic congestion has become a serious problem within the project study area. With increasing demands for access to the beach areas, roads such as NC 133, NC 211 and NC 87, are experiencing capacity related problems. The grid system of streets in the residential areas of Long Beach contribute to traffic congestion and travel delays, particularly during the peak tourist seasons. Residents of Long Beach include a mixture of retirees and working households. A second bridge would provide improved access to retail centers and services available on the mainland and shorter commuting times to mainland places of employment and to major cities such as Wilmington. Residents of Oak Island have expressed great concern over the ability to safely and efficiently evacuate the island in the event of a man-made hazard or major storm. A second bridge linking Oak Island to the mainland would help address the safety concerns of island residents, instilling an increased sense of security. The availability of many community services would be improved with the addition of a second bridge. With another means of access to Oak Island, current school district lines could be reevaluated to establish the safest and most efficient bus routes for transporting students to area schools. The Long Beach Volunteer Rescue Squad, the Brunswick County Emergency Management Services, and area law enforcement and fire protection services, would be able to respond more quickly to emergencies with an additional means of access and resulting reduced traffic congestion. Churches, schools, parks, hospitals and other community services located both on the mainland and the island would become more accessible to all residents of the project study area. 1-8 I schedule and funding goals for the next seven years. The 1997-2003 Transportation A second bridge to Oak Island will support development that is occurring within the project study area and the surrounding vicinity. Accessibility to the island would be increased for both overnight and day visitor traffic. Brunswick County recognizes that the development of a high quality tourism trade is a primary element of the county's economic future. Long Beach, while desiring increased economic development, is dedicated to promoting and preserving the "family" oriented, retirement-resort atmosphere and reputation of it's community and will approve development only when and where adequate facilities and services to support it are available. 1.4 PLANNED AND PROGRAMMED ROADWAY IMPROVEMENTS The proposed Second Bridge to Oak Island has been a priority for many years as discussed in Section 1.1.2. It is included in the NCDOT Transportation Improvement Plan, and is supported by the Brunswick County Thoroughfare Plan, Land Use Plan, and the Town of Long Beach Land Use Plan as a priority project. The North Carolina Department of Transportation annually updates a priority list with Improvement Plan has scheduled the following projects in the vicinity of the study area (planning, design, right-of-way acquisition, or construction). I Project TIP No. ' NC 133 R-3306 ' SR 1500 & R-3434 SR 1401 t Proposed Improvements Upgrade road to 24 feet from SR 1530 to SR 1518. Upgrade road to 24 feet w/ paved shlds. from NC 211 to US 17 Bus. & improve intersection w/ US 17 Bus. 1-9 Projected Schedule Construction 1997 - 1999 Right/Way 2002 -2003+ Construction Post Years Project TIP No. Proposed Improvements Projected Schedule New Route R-3324 Two-lane connector from Planning 2000- 2002 NC 211-133 to NC 87. Design 2002 - 2003+ Right/Way 2003 - 2003+ Construction Post Years NC 133 B-3115 Replace Bridge No. 61 over Right/Way 1999 Town Creek. Construction 2000 NC 133 B-3116 Replace Bridge No. 56 over Right/Way 1999 Allen Creek. Construction 2000 NC 211 B-2110 Replace Bridge No. 62 over Right/Way 1999 Royal Oak Swamp. Construction 2000 SR 1500 B-3308 Replace Bridge No. 25 over Construction 2001 River Swamp. Long Beach E-3404 Extend paved shoulders on Under Constr uction SR 1104 (Beach Drive). NC 87, W-3408 Realign intersection of NC 87, Identified Future NC 133 & NC 133 & Sunny Pt Access Rd, Need Access Rd. and install traffic signal. SR 1401 B-3117 Replace Bridge No. 101 over Construction 2000 Branch of Pinch Gut Creek 1.5 HIGHWAY CAPACITY 1.5.1 Existing Highway NC 133 and the existing bridge over the Intracoastal Waterway is currently the only access to Oak Island which includes Long Beach, Yaupon Beach and Caswell Beach. NC 133 is a 24 to 36 foot wide, two to three lane facility with no access control from NC 211 to SR 1104, East Oak Island Drive. NC 211 is a 22-foot wide, two-lane facility throughout the project study area. The terrain is level, and the horizontal and vertical alignment is adequate. There is an existing traffic signal at the intersection of NC 211 and NC 133, and at the intersection of NC 133 and SR 1104. Turn lanes are provided at these intersections. There are also numerous unsignalized intersections along the existing travel route. The 1-10 adjacent land is scattered with residential and commercial development. This existing development limits improvements to the existing highway without substantial social and economic impacts. ' The posted speed on NC 211 and SR 1500 in the project study area is 55 mph. The posted speed on NC 133 varies between 35 and 45 mph as it traverses the Intracoastal Waterway. ' Oak Island Drive's speed limit is posted at 35 mph near NC 133 then increases to 45 mph after it leaves the commercial area. At the intersection of Oak Island Drive and Middleton ' Avenue, Oak Island Drive is posted at 45 mph while Middleton Avenue is posted at 35 mph. ' 1.5.2 Traffic Capacity Analysis ' A traffic capacity analysis was performed for the proposed project and the results are discussed in the following sections. The analysis was conducted with base year 2000 and design year 2020 traffic volumes. The existing roads were evaluated for the base and design ' years, both with and without the proposed Second Bridge. Roadway and intersection levels of service were determined for the base and design year for the proposed roadway and ' intersections. If unacceptable levels of service were experienced, then signal warrants were studied. ' A measure commonly used to determine the adequacy of a roadway facility is the comparison of the traffic volume with the roadway capacity, expressed as the volume/capacity (V/C) ratio. This ratio is used to describe levels of traffic service ranging from level of service ' A to F. Level of service A represents a low V/C relationship, indicative of smooth, free- flow traffic, and the best condition; while F represents a high V/C, congested traffic, ' complete breakdown of traffic flow, and is the worst condition. Levels of service A through C are the desired levels, although level of service D is considered acceptable for urban ' 1-11 facilities. Traffic conditions that exceed level of service D (E and F) are not acceptable. These latter conditions represent significant travel delay, increase the potential for accidents, and contribute to the inefficient operation of motor vehicles. The analysis includes an examination of the proposed roadway and intersection capacities, and makes recommendations to maintain an acceptable level of service. The capacity analyses were performed using the "Highway Capacity Manual, Special Report 209, Third Edition, updated 1994" (HCM), the latest (1994) version of the "Highway Capacity Software" (HCS) and HCM/Cinema 2.0. Documentation from the analysis of each traffic movement in the AM and PM peaks is included in the "Traffic Capacity Analysis for the Second Bridge to Oak Island." 1.5.3 Existing and Base Year Traffic Conditions Existing year (1994) traffic volumes along the existing route of NC 211, NC 133, SR 1104 and SR 1190 range from 5,400 to 13,100 vehicles per day (vpd) for the off-peak, and from 9,400 to 18,600 vpd for the summer peak. Traffic volumes on the existing bridge range from 11,100 vpd for the off-peak to 16,800 vpd for the summer peak. Exhibit 1.5. la shows the 1994 average daily traffic volumes along the existing travel route and the connecting streets for the off-peak and summer peak, respectively. Exhibit 1.5. lb shows the base year (2000) traffic volumes which were used in the capacity analysis for the off-peak and summer peak. The directional split varies for the project, ranging from sixty (60) to sixty-five (65) percent of the vehicles of the design hourly volume. The predominant traffic flow is onto Oak Island during the PM peak hour. The peak hour volumes account for eight to nine percent of the daily traffic depending on the location. Dual-tired trucks attribute one to two percent and truck tractor semi-trailers one percent of the average daily traffic. 1-12 IN iu IN is MILS is iu io 19 f e. / ?EP i i ? ?r yyy "?.. j 4700 7000 BRUNSWICK 1 NUCLEAR POWER 12900 19600 3100 6600 SR 1104 (WST BEACH SUNSET -HARBOR :?L24_00 YACNT OR. EST 00 WEST OAK ISL' S: MILITARY OCEAN TERMINAL SUNNY POINT 9000 13400 ll tl North Carolina ATLANTIC OCEAN Department of Transportation Environmental Assessment Second Bridge to Oak Island LEGEND ! Brunswick County, North Carolina S EAK ADT VOLUMES OMMERE Average Daily Traffic volumes 1994 Existing Year le Exhibit 15.1a IN 211 \ a \ ) _5 I 8 a a ? ?)?.MILS...? i a , 12000 ., j ? .:y \ I SUNSET HARBOR `T YACHT OR• i I '`:.? .. / i . 2000 5 I: \ \...-... ?... / .` 2900 WEST OAK ISLA !U SR 1104 (WEST BEACH DRI ATLANTIC OCEAN ll !1 a LEGEND OFF-PEAK SUMMER PEAK ADT VOLUMES I n I I MILITARY OCEAN TERMINAL SUNNY POINT f 1 15700 23800 /. 13% BRUNSWICK :AR POWER S: .?-TERWAY J- -TV 11000 16300 North Carolina r(j; Department of Transportation Environmental Assessment Second Bridge to Oak Island Brunswick County, North Carolina Average Daily Traffic Volumes 2000 Base Year Exhibit 1.5.1b C I A segmental capacity analysis was performed using the 2000 base year design hourly traffic volumes in the peak flow direction during the off-peak and summer peak. In the base year, the existing bridge is expected to operate at Level of Service (LOS) D during the off-peak and LOS E during the summer peak. The existing major intersections along NC 211, NC 133, SR 1104, and SR 1190, between SR 1500 and SR 1105, were analyzed. NC 211/NC 133 and NC 133/SR 1104 are the only signalized intersections on NC 211 and NC 133 in the study area. All of the intersections are expected to operate at levels of service from A to C in the 2000 base year. Table 1.5.1 shows the results of the analysis for the existing roadway for the off-peak and summer peak. Table 1.5.2 presents the unsignalized and signalized intersections and the levels of service for the off-peak and summer peak during the AM and PM peaks. 1.5.4 Future Traffic Conditions Traffic forecasts for the 2020 design year are based on the projected increase in population and development. Travel demand along this project will increase 67 to 124 percent by the design year. These projected traffic volumes, as shown in Exhibit 1.5.2 range from 9,900 to 23,200 vpd during the off-peak and 18,000 to 31,000 vpd during the summer peak. An analysis was done for the design year traffic volumes at the same location as the base year analysis. In the 2020 design year, the existing road is expected to operate at capacity, LOS E, in the off-peak and LOS F in the summer peak. The results are shown in Table 1.5.1. The existing intersections were also analyzed in the design year. Table 1.5.2 shows the 1-15 TABLE 1.5.1 NO-BUILD ALTERNATIVE LEVEL OF SERVICE FOR EXISTING ROADWAY SEGMENTS levels of service for all intersections. The intersections are expected to operate at LOS E and F during the summer peak and LOS A to F during the off-peak in the 2020 design year The less desirable levels of service at the intersections are attributed to the left turn movements to and from the cross roads. Left turning traffic on NC 133 slows down or stops while waiting to find a gap in the opposing traffic. Also, traffic turning left onto NC 133 has to wait for a gap from both lanes of traffic before entering. As traffic increases, delays increase and levels of service decrease. This analysis shows the capacity deficiencies expected for NC 211, NC 133, SR 1104 and 1-16 TABLE 1.5.2 NO-BUILD ALTERNATIVE INTERSECTION LEVEL OF SERVICE SR 1190 if the Second Bridge to Oak Island project is not constructed. With unacceptable levels of service throughout the design year, safety will be compromised and delays will be extensive. The second bridge will relieve traffic congestion on the existing bridge by a attracting approximately 48% of the traffic away from NC 133. The traffic analysis for the Second Bridge Alternatives is discussed in Section 2.8. U 1.5.5 Accident Analysis U Accident data for the period of November 1, 1991 through October 31, 1994 was used to analyze accident potential along the current route. Accident data for the followings segments were analyzed: Segment 1: SR 1500 (Midway Rd.) from 1.65 km (1.02 mile) north of NC 211 to 15.2 m (50 ft) north of NC 211. Length= 1.63 km (1.01 miles) Segment 2: NC 211 from SR 1500 to NC 133. Length=8.03 km (4.98 miles) Segment 3: NC 133 from 15.2 in (50 ft) south of NC 211 to 15.2 in ' (50 ft) north of SR 1104 (Yaupon Drive). Length=5.68 km (3.52 miles) ' Segment 4: SR 1104 (Yaupon Drive) and SR 1190 (East Oak Island Highway) from NC 133 to 15.2 in (50 ft) east of SR 1105 (Middleton Ave). Length=9.21 km (5.71 miles) ' Segment 5: SR 1105 (Middleton Ave.) from E. Beach Drive to E. Yacht Drive. Length=1.47 km (0.91 miles) ' A summary of the accident analysis for each segment is shown in Table 1.5.3. There were a total of 173 accidents, including 4 fatal accidents, 85 accidents involving injuries and 84 accidents that resulted in property damage only. The estimated economic loss from these ' accidents totaled $558,964. Exhibit 1.5.3 shows the locations along the current route where accidents frequently occur. The largest percentage of accidents occurred at the intersection of NC 211 and NC 133 south of NC 211. ' 1-18 >/ W ?co)x Hd'F F r+ z? w? Ao U? U w o 0 o 0 v °o Oo F O'.Q' o i i b rn b c O Wa e r v i r ?.I W O rn r V N O W P, O V M .. ? N 17 •-- N W i? U ... ? ; 7 7 7 7 7 F" F Qa p 0 O p V O N O rn 0 O U o O O O O O p b O O O O O O ? O ti ? v0 O ?_ vp _? ?p ^ o ^ vp N ? ?O F w U U U U U U U U U U V U U V ' U U U U U U U S?i Q Q Q' Q Q Q Q Q Q ' Q Q Q Q Q U ; ? ? F . ; /. ; ? ; ? ? ? ? 4 C1 F? ?? N ? C B C ^ ? A C b? ! ! N 4 a? ? C ?? r? c O 4 l ? O i 4 M? ! a! W? C P C O O ^ O w 0 O O O O N° O O M p V O o\ b V !Q U U U U u U U U U U U u U U ;![? Q Q Q Q Q Q Q Q Q' Q Q Q ¢ Q a o E (n y E p " E m '° E -, Y E r E o U o m z C E m,? o,? c o `o Z a= w o ° N v > a m : A o o ,,, o > M ? N M ?+ y Q o ? _ N O S x U u v z c o q O 3 E N y .?. u?... •'• o N N .Q V 'O U ao'^`'' E ENO= E,yoCQ °v 5 0 --2z W W Z "" v G vi O y ?.. A L ok.. o ? ? o?o oo. 3 E.o ow 9 N L N ry t w mN'o E u ?rn oa z0 z z °?r ' ? h z r z71 ;.? N M C V1 ? i W .. 11 11 11 1 I 1 i I I I I Accident rate and fatal accident rate are measures related to average daily traffic and the length of the studied segments. The total accident rate for the stated time period varies from 53.29 accidents per 100 million vehicle kilometers (MVK) (85.95 accidents per 100 million vehicle miles (MVM)) to 248.00 accidents per 100 MVK (400.00 per 100 MVM) as shown in Table 1.5.3. The fatal accident rate for the same time period varies from 0 per 100 MVK (0 per 100 MVM) to 1.98 per 100 MVK (3.20 per 100 MVM). As shown in Table 1.5.3, these averages, with the exception of SR 1105 (Middleton Avenue), are somewhat lower than the statewide averages for similar North Carolina routes in 1993. The accident severity index is a weighted measure of the seriousness of traffic accidents occurring on a roadway segment, in terms of injuries and property damage. The accident severity index for the studied segments vary from 10.05 to 21.28 as shown in Table 1.5.3. Three of the studied segments had accident severity indexes that were moderately higher than the statewide averages of 13.1 for North Carolina routes and 12.0 for secondary roads for the year 1993. As shown in Table 1.5.4, the most prevalent types of accidents occurring on the studied segments, are rear end collisions that occur when a vehicle has slowed down or come to a stop in the lane of travel (28.3 %), accidents at an angle (14.5 %), and accidents involving a left turn on the same road (12.7%). These type of accidents on the existing roadways would increase with traffic growth and deteriorating level of service. Table 1.5.5 describes the frequency of accidents in relation to the month of the year and the day of the week. The influx of tourists during the summer months and weekends causes a substantial increase in the number of accidents. Studies show that Brunswick County, in general, and Oak Island, specifically, are experiencing a rapid increase in growth. Several of the studied segments (NC 211, NC 133 and SR 1105) have accident severity indexes which are higher than the statewide averages for similar two-lane North Carolina routes and 1-21 d' H M Q? O W (/] O d W ?" Ua N N X 0 0 r O O ? Q\ M M N N N N m W m O + F N 7 N a7 V V N N N N rn rn vi O _.. f I C m C V 0 N N °` ? h l? rn v1 ? •R N N N N r : R 9 C O u O 6 S 6iz ?:F v? r rn N O O w O V M N ? w S bz p -:0 v1 vi rn M N N ? b N b N b b b O F N rn D\ M M M M O 7 O Q °` b m ?O ?O V N N N N M C S S S S s c-,C a D, m M M ?O a ? [? U o\ D\ 0\ O S F! ? N ? D\ O\ h M O M O u a o0 h rn M N a `' o a b? 6s b? s bR bR ° 61E? p N u O u ? N v? 1? R i vi N M .r '. ? r •? ,,,? r i r i O O S.E. O rn O rn O O 4n ' O V ? Q N a w Q a ? r G Z z •O W y ttl td v E w `v z7 z ° „ 'z h d N U s ? O 3 E h = o x F o a z o Wo _ W O W UE U F 2 c4 a Z 4 s cG o z w w x ro 0p C V C CO CW C U O F C U O 'Q N = O ? a U w C d O. Y O F O w O C d b ? b R ?a ° =Q ? .c ? o m vU =o U aw U o? z° I TABLE 1.5.5 ACCIDENT FREQUENCY BY MONTH AND DAY OF WEEK MONTH/DAY SEGMENT TOTAL % OF 1 2 3 4 5 TOTAL January 2 1 8 11 6.4% Februar 5 4 3 y 1 13 7.5% March 1 3 1 5 2.9% A ril 4 5 p 5 14 8.1% May 6 6 6 18 10.4% J 4 une 6 5 15 8.7% July 1 5 6 11 1 24 13.9% Au u t 6 8 g s 9 1 24 13.9% September 5 1 4 1 11 6.4% October 1 6 6 6 19 11.0% November 4 5 3 12 6.9% Decemb 2 3 er 2 7 4.0% TOTAL 2 50 54 63 4 173 100.0% 1 Monday 6 9 7 1 23 13.3% Tuesday 9 4 8 21 12.1% Wednesday 9 7 8 1 25 14.5% ' Thursday 1 7 6 9 1 24 13.9% Friday 6 17 11 34 19.7% ' Saturday 1 7 6 16 1 31 17.9% Sunday 6 5 4 15 8.7% TOTAL 2 50 54 63 4 173 100.0% `J ' 1-23 secondary roads. Constructing a second bridge to Oak Island will provide a dispersion of existing traffic, diverting traffic intended for Long Beach away from NC 211 and NC 133, improve current accident rates, as well as provide for increased future traffic demands. 1.5.6 Emergency Evacuation Within the study area there are two emergency evacuation plans in place. One is the Brunswick County Hurricane Evacuation Plan and.the other is the North Carolina Emergency Response Plan in Support of the Brunswick Steam Electric Plant. The Brunswick County Hurricane Evacuation Plan was developed to provide for an orderly and coordinated evacuation in order to minimize the effects of hurricanes on residents and visitors of Brunswick County. An underlying objective of the plan is to minimize physical damage, injury, and loss of life in the event of a hurricane threat. Although the National Hurricane Center can track approaching hurricanes several days in advance, the precise location and time the hurricane hits the coast, as well as its severity, cannot be determined until much later. For a variety of reason, it is not practical to issue evacuation warnings until evacuation is considered necessary. Therefore, such warnings may not be issued until just hours before the hurricane strikes. The North Carolina Emergency Response Plan in Support of the Brunswick Steam Electric Plant has been developed to provide for an orderly and coordinated evacuation in the event of an accident at Carolina Power and Light's Brunswick Steam Electric Plant, commonly known as Brunswick Nuclear Plant. The estimated maximum number of vehicles evacuating over the existing bridge from Oak 1-24 Island in the event of an emergency was 16,800 in 1994. This can be expected to almost double by 2020 when 28,500 vehicles could attempt to leave under the worst conditions. 1.6 MODAL INTERRELATIONSHIPS 1.6.1 Transit and Rideshare Mass public transit is not available in the project study area. Public transportation is h available from several taxicab companies on Oak Island. The Brunswick County Department of Social Services provides transportation services to kidney dialysis patients. The Town of Long Beach Parks and Recreation Department has vans that provide transportation services for senior citizens within the study area. Brunswick County Community College provides transportation for handicapped students. Approximately 17 percent of the work force in Brunswick County drive to work in carpools. 1.6.2 Rail Service 1 No railroad lines are located within the project study area. Amtrak Passenger service is available at Fayetteville, approximately 117 miles from the study area. 1.6.3 Airports No airports are located within the study area. The Brunswick County Airport is located on ' NC 133, east of the project study area. This facility is owned by the Airport Commission, whose membership is appointed by the County Commissioners and several municipal ' Townships. Brunswick County gives financial support to the airport. There is no ' commercial service available at this time, however, the airport anticipates adding a shuttle service to the New Hanover International Airport in Wilmington, in the future. An average of ten (10) private planes utilize this airport during regular weekdays. As tourism is a major factor on Oak Island, the daily average may vary from twenty (20) to forty (40) planes on 1-25 weekends and during the peak summer season. In addition to the New Hanover International Airport in Wilmington, commercial passenger airline service is available at the Grand Strand Airport in Myrtle Beach, South Carolina. 1.7 SUMMARY OF PROJECT NEED The existing route to Oak Island, including NC 211 and NC 133, is currently carrying from 5,400 to 13,100 vehicles per day (vpd) for the off-peak, and from 9,400 to 18,600 vpd for the summer peak in 1994. By the year 2020, the traffic is expected to increase to a range of 9,900 to 23,200 vpd for the off-peak and from 18,600 to 31,000 vpd for the summer peak. The highway is the only link from the mainland of Brunswick County to Oak Island and its beaches. The current level of service is marginally acceptable and accident severity index is moderately higher than the statewide averages of 13.1 for North Carolina routes and 12.0 for secondary roads. Travel demand along this project will increase 67 to 124 percent by the design year. As a result, the level of service is expected to rapidly decline. The existing road and bridge would operate at LOS E in the off-peak and LOS F in the summer peak during the design year. Constructing the Second Bridge to Oak Island would provide a dispersion of existing traffic, diverting traffic intended for Long Beach away from NC 211 and NC 133 and improving traffic service, as well as provide for increased future traffic demand. The Second Bridge will benefit Brunswick County, Oak Island and its communities. The proposed facility will reduce vehicle hours of travel; improve travel speeds; improve emergency evacuation times and routes for natural disasters and nuclear accidents; enhance economic development potential and improve access to public facilities and for emergency vehicles. 1-26 ? ? ml ? ? ¦? ? ?! ? ? ? ? ? ? ? ? ? ? ? I O III o ? O m Z -n y >o ;0 o CO m °o ZZ Z? {N C, 0 m z ?I0 2 D F;oO 0 u nmv mA iJ ? A M D z o 2Z ~ 0 1 0o nm z m j Z0 o A Zo Ou o In z :rzl O f D Z A D m r a m o m Z n D O Z O ti Om z V) I 0 0 0 N J 3 3 m /! > / D C 0 nz _Z ' LOCKWODDS FOLLY INLET ?. 1 ( _ _.. /..._ L_?...I\Dc i.. i ..' m z M co .... m-1 r zZ -i A 0 0 D Z r- 0 Z O co m D O I I I :: I j II 1. 1. I y .' I 1 I I? I? SE MM MT 5 j j (NIDDLETON AWE I II w I ? 1 m j I Ny. a:: a s ?y: °`D A° I I jl i I IZ ?ol D: Iy ID N 9 ?al °z q/ z J N33Si, ?rra / I \ 1 / fAn .. . \?QUlN 2WA4(P As-.. CP tYL? I ?C ,I \ co n 7 Q-. Q. ?C33 goz 3 3 OZ o _ m . ;j m O? CAD 0. n -"1 :r O JJ9D m m oSD 9;g, Q c L 7 m?W7 Q O c ° v1, IP ) N 1 \ co) s N O= /, \ 1,549 °' / rn N w co i \ tcCm? 'A V 0o ?n x v C ? ?o r ? ? ? ? ? ? ? ? ? ? ? ? ?¦ ?¦ ? ? I 2.0 ALTERNATIVES This chapter addresses various alternatives for the proposed action, including the No-Build. During the initial phases of this study, numerous alternatives were considered and evaluated. I, Those alternatives which did not meet the purpose and need of the project, had undesirable adverse impacts, or were considered impractical or noncompetitive, were eliminated from ' further consideration. Those alternatives that were retained for detailed study are evaluated and presented in the following discussion. ' 2.1 NO-BUILD ALTERNATIVE The No-Build Alternative would forego any improvements to the existing roadway system ' to and on Oak Island, with the exception of routine maintenance. The existing roadway and I? bridge would remain the only access onto and off of the island and NC 133 would continue to be a two and three-lane roadway from NC 211 to SR 1104. The No-Build Alternative would not be compatible with the transportation goals of Long Beach, Brunswick County and North Carolina which are: to improve the safety and efficiency of travel accessing Oak Island by providing a second roadway and bridge to the island. Because the transportation needs and objectives would not be met by the No-Build Alternative, local governments would be hampered in their efforts to provide services to existing development and to attract new development and tourism. i 1 Additionally, as discussed in Section 1.5, the No-Build Alternative would not provide acceptable levels of service on NC 133. The roadway would become increasingly burdened with heavy traffic, long delays and the high potential for accidents. Given the existing and I 1 2-1 projected levels of service and resultant safety consequences, the No-Build Alternative is not considered a satisfactory alternative. Evacuation of the island during emergencies such as a hurricane or an accident at Brunswick Nuclear Plant or Sunny Point Military Ocean Terminal is severely hampered with the entire island evacuating by a single two-lane roadway and bridge. If there was an accident at the nuclear plant or the military terminal, traffic has to exit the island toward these facilities, coming within three miles of the power plant before it could begin to move away from the accident site. A second bridge on the island would move traffic away from such an accident immediately, and with a hurricane it would double the evacuation capacity of the island. The No-Build Alternative is not considered a reasonable alternative due to the need for improved evacuation routes off the island in the case of emergencies. The No-Build Alternative would avoid any adverse environmental impacts. However, adverse social impacts could result due to increased accidents and delays leading to the loss of business and tourism in the area. The No-Build Alternative was eliminated from further consideration for the reasons stated above. However, the No-Build Alternative provides a basis for comparing the adverse impacts and benefits of the Build Alternatives. 2.2 TRANSPORTATION SYSTEMS MANAGEMENT ALTERNATIVE Transportation Systems Management (TSM) improvements involve increasing the available capacity of the existing facility with minimum capital expenditures and without reconstructing the existing facility. Items such as the addition of turn lanes, striping, signing, signalization and minor realignments are examples of TSM physical improvements. 2-2 1 Traffic law enforcement, speed restrictions, access control and signal timing changes are ' examples of TSM operational improvements. These improvements were considered but would not improve the levels of service on NC 133. In addition, they would not be ' consistent with the purpose of the project, to provide a second access to the island. I Therefore, the TSM Alternative was not considered a reasonable and feasible alternative and i' was eliminated from further consideration. 2.3 MASS TRANSIT ALTERNATIVE r Currently there is no existing mass transit system in Brunswick County. This is due to the lack of demand, low population density, diffused employment centers and diversity of trip origins and destinations. The study area is rural in nature on the mainland, medium residential density on the island, and there are few businesses. Many of the road users are retirees or tourist coming from all over the state and out-of-state. Neither of these user groups would benefit from a mass transit solution. Due to these factors, the Mass Transit Alternative was not considered a reasonable and feasible alternative and was eliminated from further consideration. 2.4 IMPROVE EXISTING ALTERNATIVE The Improve Existing Alternative, widening and upgrading NC 133 from NC 211 to SR 1104 and SR 1104 from NC 133 to SR 1105 (Middleton Avenue) was not considered for this project because it does not meet one of the purposes and needs; to provide a second access to Oak Island. Although widening the existing roadway and bridge would increase the traffic capacity, it would not improve the access to and from the island, especially for residents on the west end of the island. All vehicles would still be brought on the island from the east. ,? 2-3 To provide the additional capacity needed, NC 133, south of NC 211, SR 1104 and SR 1190 (Oak Island Drive) would need to be upgraded. SR 1104 particularly would suffer as all the Long Beach and Yaupon Beach traffic uses this two-lane roadway to access beach property and facilities. In addition, this single access would not as effectively evacuate the island in the event of a natural disaster or nuclear accident. Therefore, the Improve Existing Alternative was not considered a viable alternative. 2.5 SECOND BRIDGE ALTERNATIVES The Second Bridge Alternatives involve constructing a new high-level bridge over the Intracoastal Waterway, replacement of the existing bridge over Davis Canal, upgrading existing sections of roadway and construction of new segments of roadway between SR 1104 (Beach Drive) and NC 211. The roadway will be classified as a rural major collector with partial control of access. 2.5.1 Study Area The southern and island terminus of the project begins at the SR 1104/SR 1105 intersection in Long Beach, on Oak Island. SR 1105 (Middleton Avenue) is a major north-south street and the only street on the western half of the island which extends across Davis Canal to the beach. It is located 8.9 kilometers (5.5 miles) west of the existing bridge (NC 133) and has an existing 30.5 meter (100 foot) right-of-way. The northern and mainland terminus of the project would intersect NC 211 at or near SR 1500 at Smith. The east-west boundaries on the mainland were established to encompass any reasonable and feasible alternative variations in the 6.5 kilometers (4 miles) between the Intracoastal Waterway at Middleton Avenue and NC 211 at Smith. During the course of the study, the project study area was expanded to encompass the western portion of Oak Island from Middleton Avenue to the end of West Oak 2-4 I Island Drive and on the mainland to include SR 1112 (Sunset Harbor Road). The initial and expanded project study areas are shown in Exhibit 1.1.1. The study area is characterized by rural activities. At the north end to the project, the small ' crossroads of Smith includes a modern store and a scattering of farm buildings sighted in 1I? agricultural fields. From Smith south to the Intracoastal Waterway the study area is comprised of woodlands, of which portions have been cut over for lumber; dense shrubs; and area of potential wetlands. The closest major development in this area is Saint James ' Plantation lying to the east of the study area. The southern end of the project, on Oak Island, is characterized by densely arranged residences serving mostly as vacation homes. The area is subdivided but many lots remain vacant especially in the middle of the island, ' farthest from the waterway and beach. 1 2.5.2 Development. of Preliminary Alternatives I1? The selection and evaluation of preliminary alternatives within the study area included the consideration of a variety of criteria. In the early phase of the study, an aerial photomosaic, USGS maps, Geographical Information Systems (GIS) maps, tax maps, research and field studies were used to identify the locations of human and natural features. Build alternatives were developed which avoided identified sensitive areas to the greatest extent possible without compromising the traffic service benefits of the project or unreasonably increasing construction costs. As information became available through research and field surveys, r increasingly specific criteria were used to modify or eliminate preliminary alternatives. r The following criteria were used to develop the preliminary alternatives: ' 2-5 • Impacts on residential communities and neighborhoods, specific social groups, business developments, archaeological sites and historic architectural properties, and parks. • Impact on wetlands, wildlife habitat, and natural systems. • Economic impacts on businesses due to relocation and loss of accessibility. • Potential for disruption of established communities and neighborhoods. • Use of known Section 4(f) (i.e., publicly-owned land of a wildlife refuge, recreation area, or an historic site) resources when other prudent and feasible alternatives are available. • Regional and state transportation goals. • Traffic operational and safety conditions and congestion. • Economic considerations, including relative cost of construction and road user costs • Compatibility with accepted geometric design standards and criteria. • Geological stability. • Potential for encroachments in floodways and floodplains. • Hazardous material sites. "Land Suitability Mapping," showing factors that would limit or discourage the development of a highway, was developed. The "Land Suitability Mapping" was used to identify preliminary alternatives that would minimize potential impacts while maintaining engineering design standards. From the "Land Suitability Mapping" eighteen (18) potential alternatives were identified. This number was reduced to eight (8) preliminary alternatives by eliminating alternatives with more potential impacts and/or less desirable engineering alignments. These eight preliminary alternatives include six (6) new location alternatives and two alternatives that 2-6 utilize Sunset Harbor Road. All eight preliminary alternatives include the construction of ' a new bridge over the Intracoastal Waterway. The eight preliminary alternatives are shown graphically on Exhibit 2.5.1. All of the preliminary alternatives begin on Oak Island at the intersection of SR 1105 (Middleton Avenue) with SR 1104 (Beach Drive). Seven of the eight follow the same corridor across the Intracoastal Waterway before they diverge in different directions. Alternatives C101 and C102 end at SR 1500 approximately 1415 meters (4641 feet) north of NC 211/SR 1500 intersection and intersect with NC 211 approximately 840 meters (2755 ' feet) west of the existing NC 211/SR 1500 intersection. Alternatives C301, C305, C306, and C308 end at the NC 211/SR 1500 intersection. A connector, C101A/C102A was ' provided between corridors C101 and C102 and the existing NC 211/SR 1500 intersection to allow the alternatives to use the existing intersection. After crossing the Intracoastal Waterway, Alternative C402 turns west and parallels the waterway on new location before merging with SR 1112 (Sunset Harbor Road). The eighth alternative, Alternative C403, turns west off of SR 1105 and follows SR 1190 (West Oak Island Drive) to the west end of r the island where it crosses the Intracoastal Waterway and ties to Sunset Harbor Road. For both Alternatives C402 and C403, Sunset Harbor Road will be upgraded to it's intersection with NC 211. Following initial field studies, the C101A/C102A connector was eliminated because of undesirable curvature. Alternatives C301 and C306 were eliminated because of their higher potential wetland impacts and their intrusion into some of the more valuable natural areas of concern. Alternatives C101 and C102 were combined, joining the best segments of each, ' because of their similar characteristics. The preliminary alternative evaluation reduced the 1 ' 2-7 number of alternatives to five: Alternative A (combination of C101 and C102), Alternative B (C305), Alternative C (C308), Alternative D (C402), and Alternative E (C403). 2.5.3 Second Bridge Alternatives Each of the second bridge alternatives is proposed as a two-lane roadway with partial control of access. Intersections for all cross roads will be at grade except at Yacht Drive. Yacht Drive would be converted to a grade separation and remain open under the proposed bridge due to the required height of the bridge over the Intracoastal Waterway. The second bridge alternatives are shown in Exhibit 1.1.2. Field studies and environmental determinations were completed for each alternative and technical reports were prepared for many of the areas of environmental evaluation. These reports are available for review at the NCDOT. The second bridge alternatives are described from south to north as follows. Alternative A - Alternative A begins at SR 1104 (Beach Drive) and extends down Middleton Avenue across Davis Canal. It intersects with SR 1190 (Oak Island Drive) before rising to cross Yacht Drive and the Intracoastal Waterway. After crossing the Intracoastal Waterway, Alternative A turns in a westerly direction toward Mercers Mill Pond before turning to the northeast to intersect with NC 211 west of the existing SR 1500INC 211 intersection. Alternative A ties to SR 1500 approximately 1,415 meters (4,641 feet) north of NC 211. Alternative B - Alternative B follows the same alignment as Alternative A until it crosses the Intracoastal Waterway. After crossing the Intracoastal Waterway, Alternative B follows a northeasterly direction until it intersects with NC 211 at SR 1500. 2-8 ' Alternative C - Alternative C follows the same alignment as Alternatives A and B until it crosses the Intracoastal Waterway. After crossing the Intracoastal Waterway, Alternative C turns to the east toward Saint James Plantation before turning to the northwest to intersect I? with NC 211 at SR 1500. Alternative D - Alternative D follows the same alignment as Alternatives A, B, and C until it crosses the Intracoastal Waterway. After crossing the waterway, Alternative D turns to the west and parallels the waterway on new location before merging with SR 1112 (Sunset ' Harbor Road). From that point, SR 1112 would be upgraded to it's intersection with NC 211. Alternative E - Alternative E begins at SR 1104 and turns west off of SR 1105 and follows SR 1190 (West Oak Island Drive) to the west end of the island where it crosses the ' Intracoastal Waterway and ties to SR 1112. As with Alternative D, SR 1112 will be upgraded to it's intersection with NC 211. I? I An evaluation was performed on the second bridge alternatives after environmental impacts I were analyzed, quantities were completed and cost estimates were obtained. The five alternatives were evaluated on the following major issues: • Estimated Construction Costs • Wetland Impacts ' • Protected Species Habitat • Relocations ' Although all alternatives could limit wildlife species migration, potential impacts of the alternatives vary. Because Alternative A traverses the study area's least productive wildlife ' 2-10 habitats, it poses relatively low impact to terrestrial species and only modest impact to aquatic fauna migrating from tributaries of Mercer's Mill Creek. Alternatives B and C, both of which divide diverse longleaf communities and pocosin habitats of varying quality, would impose moderate limitations on foraging and migrating terrestrial wildlife. Of these two alternatives, Alternative C is closer to aquatic habitats and therefore more likely to negatively affect herptiles and other aquatic wildlife. Alternatives D and E cross some of the richest habitats observed in the study area. In each case the alternative would impact vernal pools and hydrology supporting their diverse fauna. Alternative D would also separate Big Cypress Bay from habitat linking it to tidal and coastal marshes and wetlands. Table 2.5.1 shows the relocations, wetland impacts, and costs associated with each of the second bridge alternatives. TABLE 2.5.1 PRELIMINARY EVALUATIONS IMPACT ALTERNATIVES ' A B: C D Length - km(miles) 9. 39 (5.84) 7.55 (4.69) 8.27 (5.14) 12.38 7.68) 12. M](7. Total Cost $17,525,000 $15,975,000 $16,550,000 $20,650,000 $23 Relocations Residences 10 10 10 18 Businesses 1 1 1 2 2 Total 11 11 I1 20 16 Wetlands - Hectares (Acres) 2.9 (7.2) 4.0 (9.9) 2.6 (6.4) 4.0 (9.9) 4.9 (12.1) 2.6 ROADWAY DESIGN CRITERIA ' Roadway design criteria was developed based on the purpose and need for this project. The design criteria used for this project is shown in Table 2.6.1. The right-of-way width is proposed to be a minimum of 30 meters (98 feet). Typical 2-11 TABLE 2.6.1 ROADWAY DESIGN CRITERIA Type of Facility: Two-lane rural collector with partial access control. Design Speeds: L-Line * 100 kmh (62.15 mph) minimum - North of Waterway * 80 kmh (49.71 mph) minimum - Bridge over Waterway * 65 kmh (40.39 mph) minimum - South of Waterway Y-Line * 65 - 100 kmh (40.39 - 62.15 mph) minimum Pavement Widths: L-Line * 9.6 m (32 ft); consisting of two 3.6 m (12 ft) lanes, and two 1.2 m (4 ft) full depth paved shoulders. Y-Line * varies 3.0 to 3.6 m (10 to 12 ft) lanes Shoulder Widths: L-Line * Minimum usable width is 2.4 m (8 ft) * Full depth paved width 1.2 m (4 ft) if traffic > 8000 ADT and 0.6 m (2 ft) if traffic > 4000 but G 8000 ADT ' Y-Line * * Varies, based on traffic volumes Shoul ders will be increased by 1.0 m (3 ft) where guardrail is required. Ditches: L-Line * V-Ditch with hinge point slopes * Ditch slope 6:1 for 3.6 m (12 ft) Y-Line * V-Ditch, varies depending on local or collector and ADT Horizontal Curvature: L-Line * Minimum Radius: 100 kmh (62.15 mph) = 360 m (1181 ft) 65 kmh (40.39 mph) = 135m (443 ft) * Spirals will be required. Y-Line * Minimum Radius: ' varies depending on -Y-Line classification Vertical Curvature: L-Line * Vertical Curvature Rate: 100 kmh; Crest K = 62 m - 105 m Sag K = 37.m - 51 m 80 kmh; Crest K = 32 m - 49 m Sag K=25m-32m 65 kmh; Crest K = 18 m - 25 m i Sag K=17m-21m Y-Line * varies depending on -Y-Line classification Grades: L-Line * 5% maximum Y-Line * varies depending on -Y-Line classification Suoerelevation: L-Line * 10% ?i (e max.) Y-Line * 10% * Norm al Crown is 2% Slopes: 2:1 Max. Cut slopes, with hinge point varies to 6:1 2:1 Max. Fill slopes, with hinge point varies to 6:1 Bridge Structures: L-Line * Clear Roadway Width: (based on >4000 ADT) 9.6 m (32 ft) for bridge over Intracoastal Waterway 12 m (40 ft) for bridge over Big Davis Canal * Vertical Clearances: 20.0 m (65 ft) over the Intracoastal Waterway Use existing clearance over Big Davis Canal * Horizontal Clearances: 27.4 m (90 ft) between pier footings for Intracoastal Waterway Sources: "A Policy on Geomet ric Design of Highways and Streets, " AASHTO, 1990. NCDOT, Division of Highways, Design Man ual. ' 2-12 sections, which include the mainline and cross roads, are shown in Exhibit 2.6.1. The United States Coast Guard, in their letter dated February 23, 1995, states "for fixed bridges crossing the Intracoastal Waterway, the established guide clearances require that the vertical clearance at mean high water will be 20.0 meter (65 feet) and the horizontal clearance will be a minimum of 27.4 meter (90 feet) The facility is proposed to be a two-lane rural collector with partial access control. Access will be limited onto the roadway. The number of driveways excepted depends on the size of each parcel. All properties will be allowed at least one driveway access, but unlimited access will be restricted. 2.7 ALTERNATIVE COST ESTIMATES A comparison of the preliminary cost estimates for second bridge alternatives were made and are tabulated in Table 2.7.1. TABLE 2.7.1 SECOND BRIDGE ALTERNATIVES COST COMPARISONS 2-13 F 2.8 TRAFFIC CAPACITY ANALYSIS FOR THE SECOND BRIDGE ALTERNATIVES Alternatives A, B, and C Design year 2020 average daily traffic (ADT) for the Alternatives A, B, and C range from 9,600 vehicles per day (vpd) for the off-peak to 13,700 vpd for the summer peak. The ' existing bridge will carry approximately 11,100 vpd for the off-peak and 14,800 vpd for the summer peak. Design hourly volumes were estimated to be from nine to eleven percent, and truck traffic between two and three percent of the ADT. The design year 2020 traffic volumes are shown in Exhibit 2.8.1. A segmental analysis was performed in two locations using the 2020 design year design hourly volumes in the peak flow direction. Alternatives A, B, and C are expected to operate I at level of service (LOS) D in both the off-peak and summer peak. The existing bridge will operate at LOS D during the off-peak and LOS E during the summer peak. These results are shown in Table 2.8.1. I [J I I The two proposed intersections were analyzed based on the recommended configurations and the 2020 design year traffic volumes. One intersection, SR 1500 and NC 211, will be converted from a T-intersection to a four-legged, intersection with additional turn lanes, as a result of the proposed project. At the intersection of SR 1105 and SR 1190, turn lanes will be added to accommodate additional turning traffic. The results of the level of service 2-15 TABLE 2.8.1 ALTERNATIVES A, B, AND C LEVEL OF SERVICE FOR ROADWAY SEGMENTS analysis for the intersections are shown in Table 2.8.2. During the design year, the two intersections are expected to experience unacceptable levels of service during the summer peak. Signal warrants were checked for these two unsignalized intersections. Both were predicted to meet at least one signal warrant each for both the off- peak and summer peak in the design year. The two intersections were then analyzed in the 2020 design year as signalized. Both are expected to have acceptable levels of service with the exception of the summer peak when the SR 1500/NC 211 intersection is expected to operate at LOS E. This intersection experiences high turning and through traffic along NC 211, resulting in low levels of service. No additional through lanes are currently planned along NC 211. Alternatives D and E Traffic projections for Alternatives D and E show that the usage on these two alternatives will drop by 19% and 26%, respectively, as compared to Alternatives A, B and C. 2-16 TABLE 2.8.2 ALTERNATIVES A, B, AND C INTERSECTION LEVEL OF SERVICE WITH RECOMMENDED REVISIONS Design year 2020 average daily traffic (ADT) for Alternative D ranges from 7,800 vpd for the off-peak to 12,400 vpd for summer peak. The range for Alternative E is 7,100 vpd for the off-peak to 10,200 vpd for the summer peak. The existing bridge will carry I I I approximately 12,900 vpd for the off-peak and 16,100 vpd for the summer peak for Alternative D, and 13,600 vpd for the off-peak and 18,300 vpd for the summer peak for Alternative E. The design year 2020 traffic volumes are shown in Exhibit 2.8.2. A segmental analysis was performed in two locations using the 2020 design year hourly volumes in the peak flow direction. Alternative D is expected to operate at LOS C in the off-peak and LOS D in the summer peak while the existing bridge will operate at LOS D in the off-peak and LOS E in the summer peak. Alternative E is expected to operate at LOS C in the off-peak and LOS D in the summer peak while the existing bridge will operate at LOS E in both the off-peak and summer peak. These results are shown in Table 2.8.3. TABLE 2.8.3 ALTERNATIVES D AND E LEVEL OF SERVICE FOR ROADWAY SEGMENTS I 1 1 1 1 2-18 2.9 ALTERNATIVES ELIMINATED FOLLOWING DETAILED STUDY Based on the higher potential wetland impacts, higher right-of-way and construction costs, higher relocation impacts and lower traffic use, Alternatives D and E were determined not reasonable and feasible and were eliminated from further consideration. 2.10 RECOMMENDED ALTERNATIVE The recommended alternative will be selected following a corridor public hearing. Comments received at the hearing and on the Environment Assessment will be considered in this selection. 2-19 3.0 AFFECTED ENVIRONMENT 3.1 GENERAL CHARACTERISTICS OF THE PROJECT AREA Brunswick County is located on the lower Atlantic Coastal Plain of southeastern North ' Carolina. The project area lies south of NC 211 from SR 1500 (Midway Road) at Smith to SR 1104 (Beach Drive) in Long Beach and encompasses portions of Lockwoods Folly and Smithville townships. I Brunswick County is approximately 550,713 acres in size and is roughly 39 miles wide and 33 miles deep at the widest points. Mean annual temperature is 63.1 degrees fahrenheit and annual rainfall averages 54.81 inches per year. The elevation of Brunswick County varies from sea level to 75 feet above sea level. ' Siouan Indians, later called the Cape Fear Indians, were the native inhabitants of the area that is now Brunswick County. The first European settlement was established on the banks of the Cape Fear river in 1664. Hostilities between the natives and the settlers doomed the initial attempts at settlement to failure and decades would' pass before permanent settlement I would be realized. ' Tradition holds that the Cape Fear was a popular rendezvous for pirates and that they came ' there in great numbers (Lee 1978). While there is nothing in the records to indicate the truth of this tradition, one infamous pirate, Stede Bonnet, is known to have met his fate upon the Cape Fear. Bonnet, once a partner of Blackbeard, sailed up the Cape Fear in 1718 with two prized stolen vessels and spent several weeks repairing his ships and dividing captured booty with his men. Word reached Charlestown that the pirates were in the Cape Fear and Colonel William Rhett was sent up the river in two heavily armed ships to seize them. After a 3-1 furious battle, Stede Bonnet was captured, along with his men, and taken as prisoner to Charlestown where his dishonorable career came to an end on the gallows there. ' Permanent settlement along the Cape Fear was attained in the early 1700's. Brunswick Town was officially recognized as a center of trade for the region in 1731, with the creation ' of the Port of Brunswick. A rival community, now known as Wilmington, was founded upstream and drastically challenged the development of Brunswick Town. The determination of local leaders to see Brunswick Town survive as a center of trade, stimulated a desire for the formation of a separate county. Through the efforts of these leaders, on March 9, 1764, ' Brunswick County was officially formed from parts of New Hanover and Bladen counties. ' In the early days, rice was the most important crop in the county. Lumber and pine derivatives, such as turpentine and resin, were also an important part of the economy. Industry today includes a large nuclear power plant and chemical plants for producing synthetic fibers, fertilizer and citric acid. Wood for paper mills is an important product and significant amounts of woodlands are owned by paper companies. Fishing and tourism are vital parts of the economy of Brunswick County. Large areas on Bald Head Island, Oak Island, Holden Beach, Ocean Isle Beach and Sunset Beach are used for summer residences as well as year-round residences (Soil Conservation Service 1986). Emerging factors in the Brunswick County economy include golf, sod production and the horticulture industry (fruits, vegetables, and ornamental plants) (Carolina Business March 1995). According to statistics compiled by the office of State Budget and Management, Brunswick County continues to be the second fastest growing county of all 100 counties in the state of North Carolina. From the 1960's to the present, the county has witnessed steady increases in the number of newcomers, including a significant proportion of retirement population. 3-2 I 11 1 l 11 The racial composition of Brunswick County is predominantly white. Approximately 81.1 percent of the 1990 population was recorded as white, 18.1 percent black and 0.8 percent of other races. Brunswick County is bordered on the west by Columbus County with a total population of 49,587, to the north by Pender County (28,855), and to the east by New Hanover County (120,284). Brunswick County is bordered on the south by South Carolina and the Atlantic Ocean. Retail sales in Brunswick County in 1990 totalled $339,802,000. The retail economy of Brunswick County is highly seasonal in nature. From a seasonal low of approximately $20 explodes to levels in excess of $30 million per month during the peak summer season. million during the months of December, January, February and March, the retail economy No railroad lines are located within the project study area. Amtrak passenger service is available at Fayetteville, approximately 117 miles from the study area. Brunswick County Airport serves private aircraft in the area. Commercial airline service is available at the New Hanover International Airport in Wilmington and at the Grand Strand Airport in Myrtle Beach, South Carolina. Currently there is no public transport service or private carrier serving the project area other than taxicabs. Long Beach, the largest town within Brunswick County, is approximately 35 miles from Wilmington, 117 miles from Fayetteville, and 158 miles from Raleigh. US 17, the major thoroughfare of the region, is approximately 15 miles north of the study area and crosses Brunswick County from a northeast to southwest direction, linking Wilmington to Myrtle Beach, South Carolina. Other routes that connect to US 17 are NC 211 which crosses the project study area, NC 87 and NC 133. 3-3 3.2 SOCIOECONOMIC CHARACTERISTICS 3.2.1 Population Characteristics Brunswick County and its five island havens are among the quietest resort areas in the state. The beaches have great family appeal because the local officials have worked hard to preserve the ecology of the beach and dunes. Their efforts to protect the elements of solitude and open sands have attracted permanent residents as well as visitors to the islands. Oak Islands's three communities are village like in feeling, a characteristic of the entire county (Morris 1993). The project study area includes portions of Long Beach, the largest of Oak Island's communities, and is encompassed by Lockwoods Folly and Smithville townships. Beginning in the 1960's, Brunswick County experienced a period of unprecedented growth. According to statistics compiled by the Office of State Budget and Management, Brunswick County continues to be the second fastest growing county of all 100 counties in the state of North Carolina. This trend is projected to continue through the year 2010. The population growth of Brunswick County is considerably more than the growth of the state of North Carolina as a whole. The highest percentage of growth has occurred in the beach areas and on the mainland near the Intracoastal Waterway. Although not all of the townships within Brunswick County have grown at the same rate, Lockwoods Folly and Smithville townships have experienced growth similar to that of the county. The coastal town of Long Beach, surpassing even the brisk growth of Brunswick County, has more than doubled its population since 1980. Table 3.2.1 compares the population trends of Brunswick County and North Carolina with the trends of Lockwoods Folly and Smithville townships and Long Beach. While such census 3-4 I I I 1 a. x z 3 0 F w z x a F Ox ? d ?xU U x ewa W .•aC7Z OOA z dOOF FWoo UE?u OaxU W Fes" O ? z ca a z x W W F z 0 c .a a a z z z N r 00 r- 00 r >`c r 0 =N ¢ ¢ ¢ Q, X ¢ ¢ ¢ 00 z z z ? ? z z z °° r O N..? Os r N oU O o O S N- ?n 00 ?o ?n r Q Q Q M O ? 00 oOO, lc? Z z z m o rn n o 00 °o y cc O a ? N cc ,s aN a ? 00 ?t r kn 1- 00 rn kn r M 00 00 r O vl cr 00 m ,O O N 7 N r ,O Vl C 00 001-- CJ ;::;0 ?._. ?•? ao ?U a a 3 L 3 x F y T H y T :1 Gq C ?' GG c ., 'O H v o .-7 U 1 ? 'O F ? o .a U X OL 3 14 L C _ 3 14 c c o z z a cn H a H t information is based on year-round populations, it must be taken into account that due to the seasonal nature of the coastal areas, other considerations exist which may affect the population characteristics at any given time. Seasonal population considerations include; property-owning summer residents, overnight visitors who rent beach accommodations for the duration of their stay, and day visitors who come to the area to spend a few hours of recreation on the island. The racial characteristics of Brunswick County are comparable to the statewide percentages of North Carolina, although, as a continued rapid influx of white residents have flocked to Brunswick County, the percentage of black population has shown a consistent decline. The white population of Brunswick County in 1990 was 41,303 persons a 50.9% increase from 1980. In comparison, North Carolina had a white population of 5,008,491 persons in 1990, an increase of 12.3% from 1980. During the same time period the non-white population in Brunswick County increased by 15.1%0, which is consistent with the increase of North Carolina of 14.0%. It is interesting to note that while the black population of Brunswick County increased by 11.2% between 1980 and 1990, the other non-white population showed a dramatic increase of 235.8%. Of this other non-white population, the highest percentage are Native American Indians, followed by Hispanics. Lockwoods Folly and Smithville townships are predominately white, with a small percentage of non-white residents. The Town of Long Beach has an even smaller non-white population (0.21 %), substantially lower than the percentages for either the townships, the county, or the state. Table 3.2.2 compares the racial characteristics of Brunswick County and North Carolina with the trends of Lockwoods Folly and Smithville townships and Long Beach. Population trends show that the retirement population of Brunswick County has steadily increased. As shown in Table 3.2.3, Brunswick County has a higher percentage of residents 3-6 I LJ 1 W a a ? Q con O A QU z5Q x ? z OQ NOS ?xz FpU U? x? Wp U per, xx Q z UO a F„ Q U Q x t? V V OC N O V' ? W Q V -O- N c, o Z F - 1? - 00 [? O M Vt C W O W G1 _ -y N N ao ? S ? F - O 0 a a ?D f? M O V1 O M ? m o? ? ?? N m 00 ?O ? N M 00 ? ?D W - ? O O O+ O G1 ? - T vt ?O N ? ^ O ? ? V' ? Gz7 O N ? v F z ? N ? N N ` , O C N? ? ?? ?? T 5 M W 00 V r? O o - ?; :.7 0. m ? o x N ? S `? ?O N ?O O O ? 0 a ^' ? M V ^• ? ? vi W a\ a\ N V Q N ^? ? N ? N Q m - s 1? ? W v} O W M W 01 M w ? ? ? 00 V1 O N n ? W ? ? r Vl K Vl ^ x N ? x 3 ? 3 3 3 F T ?-' T 1 ? i 3 a c ? 3 o m c ? [- U F U Q 'O iC ? A Y id ? A y 'O N U N F >F ?F UE- 3 > N 3 Y a t '?- c 0 s '?-, Y ? c t u ?? 0 0 0 0 0 .E o 0 w .a a x F a ?z >U of wx Az N U rim F ?zo U U a3 oz xx ?a W .. I??I zz O? FF a x a a el s &? s s C, -It c;% N N O O * ?O N M o0 M C\ O xz F, ?o oa O N ?O a ? ao NO N ° o 00 x 7 ,--? 00 N In ?c W ?t N N O ?c ?o 00 x r 00 N 3z zo x U z m ° ? 0 0 00 ,.'O ° N - r .. 00 0 0 0 o ? <t c d m 1 00 %C? W U p ' O Nt 00 r 7 00 00 o 7 m N 00 . W Q r ;i:o a x ..cn xz F? F Vj r O I v'1 r o0 N r N 00 N ?O 00 ao Q i O 00 C) \0 0 ? s a 00 O \0 00 N ?D O V) r r a, In Q Gs' W , •, ?x A? z ° 03 ?O F x o a N oo N kn r ?c 00 Zt .. r N o v? } F o kn o .-. N V1 ?o F q a 0 a. a` ' over the age of 65 than does the state of North Carolina. From 1940 until 1990, the percentage of total population 65 years or over within Brunswick County more than tripled. 3.2.2 Employment and Economic Characteristics Brunswick County had a labor force of approximately 18,355 persons in 1990 and an unemployment rate of 7.9%. The statewide unemployment rate of 4.1% for the same year was substantially less. Reasons for the higher unemployment rate may include the large retirement population entering the labor force after arriving in the county, the population growth outpacing the ability of the local economy to provide jobs, and a large number of jobs within the county being held by "in" commuters from surrounding counties. Of the townships encompassing the project study area, Lockwoods Folly Township had the lowest ' unemployment rate in 1990 (5.4%) and Smithville township had the highest (7.3%), as I shown in Table 3.2.4. ' The employment characteristics of Lockwoods Folly and Smithville townships, Long Beach, and Brunswick County are, to some degree, different from statewide averages as shown in Table 3.2.5. The percentage employed in wholesale trade and manufacturing within the study area is less than that of North Carolina, while the percentage employed in retail trade, construction, transportation, communication, and other utilities is greater. The Carolina ' Power and Light Company Nuclear Plant and Sunny Point Military Terminal account for the ' higher percentages employed in transportation, communication and utilities. The rapid growth and development of the county has caused the work force involved in construction to increase substantially. The majority of employed persons residing in Long Beach work in the retail trade industry which appears to be largely tourist dependent. 1 3-9 x 0 w A wQ z 00 w? zU x E- E- z 04 Naz w 'Z mAz? E?..az w u o a O o C.? x OU g? ?z a0 QPo a U m r p v a o ,^ M r ?p o ? ? M `tSi ^I M r M o M Cl °o oc? o e a ..y N o a` o M N M O ? M ? '-1 N z ? Q U U 3 ° a C ° ° n ¢ z a ¢ U a C E a cn o v o ?. Q m z A z -It F z xa 00 wU w? O? wa z co O? Fa ..? azo aOQ F zax ?,aF axz o? OA oo z t-0? a a ao >w UA O O x U O a :t? I r- I ?I 71- 11 M ?p M s c L T G C ° p C w O U b o ? x L L I ? C ° ? a m z I LJ 1 0 1 I x z CZ wa a O >U x Fx rr F ?i ?O A ?z aF oz w0 BOO Nox M?U U. H?a O? ?x a? Ow z ao Fa AO zz ?o zw ?F O a a w Q a o r ?r N N - ? ? c ^' z ri r 1 ?: 7 vi r M O F ti N - N y C a 0 iD - C O N L^. O N O z Q Li M M [? yJ N Vl r Gp ? N 7 N ?D O M N ?D O G1 N 00 N V1 Q\ t?l x, o s e e V ^?y el M p? N °0 r V N -- O ?..~:Z ? M ? ? N o0 Vt N 7 ? , :U ? ? p? O V N N W ? . i .C7 C\ N M N ?D ? !n T N N V p? 7 r N 7 r N 00 O It `. - O 7 M M vt M r O W - N N °3p ?o o F' ? ?p r N V7 ^ ?p a r o N r ? N 7 Vl U M vl O? oo M N H s s s° s o s s W.? M 7 °0 00 O? V M M 00 0 0 " F ?? F r ° ? M a` r o o rn „? r ? N c, ?n ? v oo r C l/]"'? U1 M - N O 'V Vl M A - - N N . z ° o3 s a o ..tea o. a r A Q\ O O O M N °? N ? w N ? v, O - ? O r ? T m C `n C G U N W m Q .? ? C G p 7 F ti O .. L. G E .: U ^ W U U Q L L G m C C U G O rd _ ca ? G L ? w v = U a 3 a w z a F Per capita personal income for North Carolina increased by approximately 150% between 1970 and 1980 and by another 75% between 1980 and 1988 to a level of $14,297. Income levels grew at a slightly slower rate for Brunswick County during the two periods as shown in Table 3.2.6. Lockwoods Folly Township had a per capita personal income that was slightly less than that of Brunswick County in 1990, while Smithville Township had a per capita personal income that was substantially higher than that of Brunswick County. TABLE 3.2.6 PER CAPITA PERSONAL INCOME FOR BRUNSWICK COUNTY AND NORTH CAROLINA PER CAPITA INCOME FOR LOCKWOODS FOLLY AND SMITHVILLE TOWNSHIPS, BRUNSWICK COUNTY, AND NORTH CAROLINA 1990 Lockwoods Folly Township $10,334 Smithville Township $14,126 Brunswick County $11,688 North Carolina $12,885 As seen in Table 3.2.7, the mean commute time in minutes for Brunswick County (22.2 min.) is slightly higher than that of North Carolina (19.8 min.). The employed residents of Lockwoods Folly Township had slightly longer commuting times than the statewide average 3-12 1 1 1 1 1 A z a? Op CG AV ox O 3a U O O I"az o? w? F FV N QFZ .? W 0. z? 00 3F Ow F a C7 ? zx O zz a ? 0:F U: CC- O.Q W a X O .n c a Vl o x 3 r z ;w z M t? M N W 0 .a s 3 F T T 3 F' U C c '? y Y J td o = L 3 U ? ti C ` L m z s 00 a M ? e M ? T C 7 N C U o Y 3 U C m` z in 1990, while the commuting times for Smithville Township were slightly shorter. The largest percentage drove to work alone and very few used public transportation. In 1980 there were slightly more commuters going. out of Brunswick County than were coming in. This is attributable to the employment opportunities associated with the Wilmington urban area to the north. 3.2.3 Neighborhood and Community Cohesion The project study area begins at the intersection of Middleton Avenue and Beach Drive within the Town of Long Beach. Middleton Avenue is a dividing line between the areas known as Mid Town and the West End of Long Beach. The homes in this area are predominately conventional, single-family dwellings; consistent with the low-rise, family- retirement beach community atmosphere of the island. One business, a convenience store/gas station, is located on Middleton Avenue at the Davis Canal bridge. The project study area crosses land that is undeveloped until it reaches NC 211 and the intersection with SR 1500 (Midway Road). This area is known locally as Midway because it is the half-way point between Southport and Supply. However, it is referred to as Smith on state road maps. Rural homesteads and small farms are scattered in this area. A convenience store/gas station is located on the west side of SR 1500 at the intersection with NC 211. 3.3 COMPREHENSIVE LAND USE AND TRANSPORTATION PLANNING 3.3.1 Existing Land Use The project study area lies south of NC 211 from SR 1500 (Midway Road) at Smith to SR 1104 (Beach Drive) in Long Beach. The area surrounding the intersection of NC 211 and SR 1500 is rural and residential in nature and comprised mainly of single-family dwellings. 3-14 I F 1 1 I A convenience store/gas station, Midway Trading Post, is also located at this intersection. The project area spans in a southerly direction across large vacant and undeveloped tracts of land, owned by approximately five property owners. The study area then crosses a large parcel of land along the Yellow Banks, on the north side of the Intracoastal Waterway. This parcel is owned by the State Property Office, with a permanent easement granted to the United States Army Corp of Engineers, to be utilized for dredging operations. The study area then crosses the Intracoastal Waterway onto Oak Island and follows SR 1105 (Middleton Avenue) to SR 1104. Middleton Avenue is lined with conventional, predominately single- family dwellings and scattered vacant lots. Another convenience store, the Beach Pantry, is located at the corner of Middleton Avenue and East Dolphin Drive. The expanded project study area follows West Oak Island Drive from the intersection with Middleton Avenue to the southwest end of Long Beach where it crosses the Intracoastal Waterway and follows SR 1112 (Sunset Harbor Road) to the intersection with NC 211. West Oak Island Drive is lined with single family homes and scattered vacant lots. SR 1112 is lined with a mixture of rural homesteads and small subdivisions. The Sunset Harbor-Zion Hill Volunteer Fire Department is located along SR 1112. A high percentage of the property in Long Beach, particularly in the project study area, is zoned residential. Much of the town consists of subdivided lots which have been sold to individual owners encouraging high density development. The street pattern of this section of Long Beach is comprised of a long, rectangular grid system, restricting east-west traffic mobility. The properties along Big Davis Canal are approximately 50% developed. Beach front properties are among the most popular in the project study area and most have been developed. 3-15 A limited amount of commercial development and zoning exists along East and West Dolphin Drive. There are no industrial land uses in the project study area. Public and semi-public land uses in the project study area include a neighborhood and regional public beach access site at the end of Middleton Avenue. The town maintains a bike route which follows Middleton Avenue, for a short distance, between West Pelican Drive and East Dolphin Drive. The Long Beach zoning ordinance embraces an open space zoning district to provide protection for areas of environmental concern. The Davis Canal area is designated as an open space district. 3.3.2 Land Use Plannine The coastal regions of North Carolina have experienced rapid growth and development in recent years. Brunswick County continues to be one of the fastest growing counties in the state. Factors contributing to the increased growth of the coastal area include; the attractiveness of the natural features of the area, increased disposable income and greater emphasis on leisure time, and a growing elderly/ retirement population. Advance planning is imperative to protecting and enhancing the coastal area, both for the residents and the protection of the natural elements that drew them there in the first place. Recognizing this great need for planning, the North Carolina General Assembly passed the Coastal Area Management Act of 1974, requiring local governments in the coastal area to develop land use plans and update them every five years. The first Brunswick County Land Use Plan was adopted in 1976, with updates in 1981, 1987, and 1992. Many municipalities within the county have developed independent land 3-16 I 1 I 1 1 1 1 I use plans. The municipality of Long Beach has adopted "The Town of Long Beach, North Carolina. 1993 Land Use Plan." The Brunswick County Land Use Plan encourages development, as long as the natural environment is not compromised. The Town of Long Beach desires to maintain the town's "family" oriented, retirement-resort atmosphere and therefore encourages development only where and when adequate facilities and services to support it are maintained. The project study area spans the jurisdiction of the land use plans of both Brunswick County and The Town of Long Beach. To analyze developing land use patterns and identify future land use needs, a system of land classification is used by both land use plans. As shown in Exhibit 3.3.1, Brunswick County has classified the land from NC 211 at SR 1500 to the extra territorial jurisdiction (ETJ) limits of the Town of Long Beach as urban transition, rural, conservation, and limited transition. The area from the ETJ limits of the Town of Long Beach to the Intracoastal Waterway is classified as urban transition. Most of the project study area on Long Beach is classified as developed residential, conservation (Davis Canal) and developed commercial. 3.3.3 Transportation Planning The proposed project is included in the NCDOT 1997-2003 Transportation Improvement Program (TIP) for planning through early 1997, design through 1998, right-of-way acquisition beginning in 1997 and construction beginning in 1998. No local governments develop transportation plans for the project area. The only long-range transportation plans encompassing the study area are developed by the Statewide Planning Branch of NCDOT. The project is included in the Brunswick County Thoroughfare Plan and is considered the number one priority. 3-17 3.3.4 Emergency Evacuation Planning Evacuation Need and Planning The "Brunswick County Hurricane Evacuation Plan" was developed to provide for an orderly and coordinated evacuation in order to minimize the effects of hurricanes on residents and visitors of Brunswick County. An underlying objective of the plan is to minimize physical damage, injury and loss of life in the event of a hurricane threat. The "North Carolina Emergency Response Plan in Support of the Brunswick Steam Electric Plant" was developed to provide for an orderly and coordinated evacuation in the event of an accident at Carolina Power and Light's Brunswick Steam Electric Plant, commonly known as the Brunswick Nuclear Plant. In case of an accident at the Sunny Point Military Terminal, the Army is the lead agency and will handle any necessary evacuation of the terminal. If it would become necessary to evacuate areas of Brunswick County, the Army would contact the Brunswick County Office of Emergency Management who would invoke the "Brunswick County Multi Hazard Plan".' The Multi Hazard Plan is the County's general evacuation plan which would be used in all situations except for a hurricane or an accident at the Brunswick Nuclear Plant. Sunny Point is not licensed as a commercial port, therefore, by law it can only be used as a loading and unloading facility. Although the Army transports highly enriched spent nuclear fuel rods through this terminal, the likelihood of an accident is minimal since the cargo cannot be stored there. Evacuation Clearance Time The measure of public safety that can be attained in the event of an emergency is the evacua- 3-18 r .o i t ?¦ r? r ..? +? . r r ..? A .? r .r ?¦ r ?2 > I 11 ' I o r r m o ?g m m m 0 o z z z C C > > m f*1 f?l N u ) m o m ? z z m o 0 C - IM A m m z D d m w v D z v m 1 II 1 0 0 in N 3 rn I D r D z 1 A 0 A m D z I \ / J / 1 I' :1 I 1 I I a :: ?1 II ?G I 0c 0 OD U. oc oc H ii S I I I? g L II A I I I I 1 r 0 m 1 ` D; = R: i? 1 I / I rll5i 0 0 N m N CD 2 p O® Q ? x13 ? n _ M' Q ?CD m AD zp Er O x °o o%D < o Q N = Q ?? P=o . m m Q N ( 1) W - w? m 0 0 5. 3z m w n CDs Co o (D ^? rt 0 RIVER I :I, LOOKWOODS FOLLY INLET / z _... _. m / 1 -a3miwgal \'. N J O 1 100 I? =1 Z m v I I?JV N ? I I o °o O .g I? a fN; o ?I j I 1 A I jl i! ?sl z?` M1e. 0 I I C\ _ I w /a i'/ 000 I . 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O 1 / W X y N a N 10 M ID LA " ?* 0 r ? ? r ? ? i ? ? r i ? !1 r ? t ? ? ? m = r = = m = m = = w = = = m m m ® 0 * m m x x 0 0 z m --[ m g n D r mm G 0 m Cl) 0 1n D r El* * = n c = 0 0 = r m N (n LOU(WOODS FOLLY INLET ? i i om_..._ I z-4 I I I / ', -.1 I l ? I I ., ?xA 1 S 1 D I ?l II sR I r z m zz I r ?.. Il ? I ? ;9j ? n ? I I ?° tills ? a I sd 1105 (MID LETON AVE) I I m -o ?T m 71 U) 0 D C: D :d z m m n m I m D I ? z z i m n r I ::i m \ I N ? 0 F 3 3 m I I II co m 9:: 1> I 1 ? ! . q<T 0 O !` i x8 ! I I \'9i?gT'` 9 1 = 4 M Y . m t\? D a; / m to Is ': o I L-A a 0o m l ° I v is .a° Aso 8° ?N 110 + rs a ? •1 I' /a c p a D I Di j I V I r s ,?$0. ym s ? n w C 03 / l o u I x z 1 I? ( I F `1 I j jc= coo CD \^ W / ?l Q -3 13 ?? ?l m ID Q 0 `Y N 0 0 m x SD s Q (D J I I mm s. $ 7 Dz m w0 n -Im Q 0 om m M M A RIVER 1 / J / a \ 1 \ \ qq, - SR 1111 xo W 1 x 11??n? 1 ?n eb ! I I \ / \6Fq SWARP e ®. z o/ ?n /D': ? ° :%?? m? m 4 s Qog ? N ao e l: .y _.m a gm r \ m ®. i . I e n (A y 00, 0 Z ?§ C 90 m oN s ?_ a m epg ?C 9 P ° ? (?) y ZD m i m = m m m = m = m = m = = m ? m D!W D O 0 ?1 y! Z M -0 Z n O O m Z (? ?0 p m m -i rr7 -i z c) A r m m M X S Ur W Oi J C13 w CD O A an ? 7 CM Z O Q m ? 0 C. M ? N RN 3 OZ m ?0 M= n D -m 0 o ? rt N A -- y G-? Long Beach Atlantic Ocean 1 i01 C+ X s c GJ a J O O CL o 9' N I I V/ W O Q. o CIO z R o Sr O C) pr 0 m F Q n„ 1 3 m FZ 0 O ? ao °o m ? A. 2 i Long Beach Atlantic Ocean tion clearance time. This is the time required for all evacuating vehicles to reach a safety area. Clearly, the less time required, the higher the level of public safety. ' Although the National Hurricane Center can track approaching hurricanes several days in advance, the precise location and time the hurricane hits the coast, as well as its severity, cannot be determined until much later. For a variety of reasons it is not practical to issue evacuation warnings until evacuation is considered necessary. Therefore, such warnings may not be issued until just hours before the hurricane is expected to strike. ' In the event of an accident at the Brunswick Nuclear Plant there may be little if any notification that evacuation is necessary, and evacuation may be ordered without warning. According to the "Brunswick County Hurricane Evacuation Plan" and the "North Carolina Emergency Response Plan in Support of the Brunswick Steam Electric Plant", it is estimated ' that current evacuation times would range between 4.5 and 8 hours depending on the season and weather conditions. 3.4 CULTURAL RESOURCES 3.4.1 Schools 1 The Brunswick County school system is comprised of five elementary schools, four middle schools, three high schools and the Brunswick Learning Center. All public school students residing in the project study area attend Southport Elementary School, South Brunswick Middle School and.South Brunswick High School. Students residing in the Sunset Harbor area attend Supply Elementary School, Shallotte Middle School, and West Brunswick High School. 1 3-20 Three school buses travel twice a day along each of the primary roads in the study area. These roads include NC 211, SR 1500 (Midway Road), Middleton Avenue, and Oak Island Drive. Brunswick Community College is located in Supply with satellite campuses at Southport and Leland. The University of North Carolina at Wilmington is the nearest four-year college. 3.4.2 Churches and Cemeteries No churches or cemeteries are located within the project study area. As shown in Exhibit 3.4. 1, churches of various denominations are located within the surrounding area. Churches in close proximity to the study area include: • Jehovah's Witness Kingdom Hall Approximately 1.9 kilometers (1.2 miles) north of NC 211 on SR 1500 • Midway Apostolic Church Approximately 4.2 kilometers (2.6 miles) west of the intersection of NC 211 and SR 1500 • Oak Island Presbyterian Church Approximately 1.4 kilometers (0.9 miles) east of Middleton Avenue on East Oak Island Drive 3.4.3 Parks and Recreation Long Beach, the longest beach on Oak Island, has eight miles of coastline on one side and the Intracoastal Waterway on the other side. Many boaters, skiers and fisherman are attracted to the Intracoastal Waterway. The coastline provides unlimited recreational opportunities in a family-oriented atmosphere for children as well as adults. 3-21 ' In July 1991, the Town of Long Beach adopted an Ocean and Estuarine Access Plan that identifies 55 oceanside access sites, 10 Estuarine access sites and two comprehensive recreational facilities; Long Beach Recreational Center and Middleton Park. Other town maintained facilities include: ' • a cabana • handicapped beach access facilities ' a scenic walkway ' • a crab dock • a canoe ramp and two boat ramps • the Robin Schuster Park at the end of Oak Island Drive • the Malcom Register Memorial Park at 52nd street ' a neighborhood park at 21st street The town also maintains a.bike route which is approximately 8 miles long and extends past ' 34 of the town's shoreline access sites. The Long Beach Recreational Center employs full-time year-round recreational personnel. Many community functions are held at the recreational center, including classes and special events for residents of all ages. Twice a week the recreation center houses a nutritional ' lunch program for area senior citizens. ' Brunswick County provides recreational parks and services at various sites throughout the county. The Smithville Park located on NC 133 is closest to the project study area. Other attractions in the Southport/Oak Island area include numerous championship golf courses, the Orton Plantation and Gardens, the Brunswick Town State Historic Site, the Southport ' Maritime Museum, and the CP&L Visitor Center. The Southport-Fort Fisher Ferry may be 1 3-23 taken to visit the Fort Fisher Civil War Museum and the North Carolina Aquarium at Fort Fisher. 3.4.4 Additional Community Services The Town of Long Beach operates a full-time police department. Fire protection is provided to Long Beach by two fire stations manned by a 28-member volunteer fire department. Fire Station One is located at the Municipal Building Complex on Oak Island Drive. Fire Station Two is currently located on Oak Island Drive between 1st and 2nd Street Southeast, however, it will soon be replaced by a new fire station at Middleton Avenue and Oak Island Drive. The mainland is served by the Southport Volunteer Fire Department. Emergency medical services are provided to Oak Island by the Long Beach volunteer rescue squad, based near Fire Station One. The mainland is served by the Southport Rescue Squad. A mutual aid agreement exists between the rescue squads of Long Beach and Southport and the Brunswick County Medical Emergency Services. Two hospitals are located in close proximity to the project study area; Dosher Memorial Hospital in Southport and Brunswick Hospital in Supply. Specialized medical care is available in Wilmington at the New Hanover Regional Memorial Hospital and the Cape Fear Memorial Hospital. Mental health services are provided for the county by Southeastern Mental Health, located in the Bolivia Government Complex. 3.4.5 Archaeological and Historic Architectural Properties Archaeological Resources Presently, there are no archaeological sites in the study area listed in the National Register of Historic Places. Based on the results of the archaeological and historical background 3-24 I 11 I Places, included on the National Register Study List or considered to be 50 years of age or report prepared for the project, the probability of archaeological sites occurring within the study area is low. The most probable location for archaeological sites is along the rims of the Carolina Bays. If the Preferred Alternative impacts any of the Carolina Bays in the study area, an archaeological survey of the bay and the rim area will be conducted. Historic Architectural Properties A historic architectural resources survey was conducted and the results were compiled in accordance with Section 106 of the National Historic Preservation Act of 1966, as amended (36 CFR 800) and Section 4(f) of the Department of Transportation Act of 1966. The Phase 1 Reconnaissance Level Survey is presented in "Phase 1 Architectural Reconnaissance Survey, Second Bridge to Oak Island, Brunswick County", (Mattson and Associates, January 20, 1995). The methodology for the survey consisted of background research into the historical and architectural development of the area and a field survey of the area of potential effect for the project (APE). The field survey was conducted to identify all properties at least 50 years of age. The study area contains no properties currently listed in the National Register of Historic I older. L 3.5 UTILITIES 3.5.1 Electric Power Transmission The Brunswick County Electric Membership Corporation provides electrical service for the project study area. As shown in Exhibit 3.5.1, a 30.5 meter (100 foot) power transmission 3-25 line right of way easement follows the west side of SR 1500, crosses NC 211 and extends in a north-south direction towards Long Beach. The transmission line, which carries a voltage of 69 kilovolts, crosses the Intracoastal Waterway to a substation on Oak Island. Brunswick County Electric Membership Corporation is currently in the process of purchasing right of way along East Yacht Drive for another power transmission line to the Oak Island Station. The Town of Long Beach has implemented a program to locate all utilities underground within the next 10 to 15 years. The Brunswick County Electric Membership installs lines underground as required. 3.5.2 Water Service The Brunswick County Water System serves municipalities and unincorporated areas throughout the county. Brunswick County draws its water from the Cape Fear river and the Castle Hayne Aquifer. A water treatment plant is located on the southern side of NC 211, approximately 4.7 kilometers (2.9 miles) east of the intersection with SR 1500. The Town of Long Beach obtains its treated water from Brunswick County and operates its own water distribution system. All areas of the town are provided with water service. The system includes two elevated 300,000 gallon water storage tanks. The majority of the water lines are 6 inches or larger. Exhibit 3.5.1 shows the approximate location of water distribution lines crossing the project study area. 3.5.3 Sewer Service Due to the size and the scattered development patterns of Brunswick County, a centralized sewage treatment plant is not provided. Municipalities are individually addressing the issue 3-26 ' of sewage treatment for their communities. The residences and businesses in Long Beach ' rely upon septic systems for sewage disposal. 1 3.5.4 Natural Gas Service ' Natural gas service is not available within the project study area. 1 3.5.5 Communications Atlantic Telephone provides telephone service to the portion of the study area located along NC 211 and SR 1500. A remote office hub is located on the western side of SR 1500 near ' the intersection of NC 211, situated between an electric power sub-station and a convenience store/gas station. Southern Bell provides telephone service to the Long Beach area. Exhibit 3.5.1 shows the approximate location of buried copper filled cables and fiber optic cables within the project I study area 1 3.5.6 Railroads ' As previously discussed in Section 1.6.2, no railroad lines are located within the project study area. ' 3.6 PHYSICAL ENVIRONMENT 3.6.1 Floodplains and Floodways Brunswick County is a participant in the National Flood Insurance Regular Program. The Intracoastal Waterway is designated as Zone AE by the Federal Emergency Management Agency (FEMA) with a 100-year base flood elevation of 3.66 meters (12 feet) while the ' remainder of the study area is designated Zone C as an area of minimal flooding. 1 3-28 The area between the Intracoastal Waterway and NC 211 is a relatively flat and poorly drained soft sandy area with dense undergrowth and several Carolina Bays. Stormwater is carried from the area by way of shallow, poorly defined swales to the Intracoastal Waterway. At the proposed crossing of the corridors over the Intracoastal Waterway, the 100-year base flood is contained within the waterway's banks. Due to the projects close proximity to the Atlantic Ocean, the greatest risk of flooding would be due to a hurricane, rather than due to stormwater discharge. The 100 year floodplain for the study area is shown on Exhibit 3.6.1. 3.6.2 Hydrology and Drainage One existing bridge is located within the project limits, Bridge No. 206 on SR 1105 over Davis Canal. This is a 5-span treated timber bridge with a total length of 48.95 meters (161 feet) and a clear roadway width of 7.21 meters (24 feet). The existing bridge built in 1963 is decayed and in poor condition. Some scour is present at the bents. Davis Canal is an estuarine stream only navigable to small boats. The bridge is on a tangent alignment with a 90 degree skew to Davis Canal. The highwater indicated on the piles is 3.5 meters (12 feet) below the top of the cap. 3.6.3 Geology. Topography, and Soils Brunswick County lies on the lower Coastal Plain of North Carolina, with soils formed from coastal plain sediment or sediment deposited by streams. Drainage is often poor due to low gradients, especially in Carolina Bays and other depressions in the landscape. 3-29 i 1 I Geology The project area occurs on two geologic formations of the Coastal Plain physiographic region. Most of the project area lies on the Waccamaw Formation, Tertiary-aged marine-deposited sediments, composed mostly of unconsolidated fossiliferous sands, silts, and clays (Brown 1985). Beginning 1.0 to 1.4 kilometers (0.6 to 0.9 miles) north of the Intracoastal Waterway, the Waccamaw Formation is overlain by Quaternary-aged deposits of unconsolidated gravels, sands, and clays, originally deposited in marine or lacustrian environments (Brown 1985). The dividing line between these formations is an ill-defined scarp, located on the north side of Ash Swamp and continuing westerly through the entire project area. Oak Island is composed completely of Quarternary-aged deposits. After the Tertiary-aged sediments were deposited, about 16 Carolina Bays formed on the surface of these deposits. Topography Elevation in the project study area ranges from mean sea level (MSL) to a high of 19.0 meters (63 feet). The maximum elevation of about 19 meters (63 feet) occurs between the two largest Carolina Bays in the central portion of the project area. North of this point, the elevation drops to about 14 meters (45 feet) at Midway, a slope of about 2 percent. South of this point, the elevation drops to sea level at the Intracoastal Waterway, a slope of about 8 percent. Descending the scarp to the Quaternary-aged deposits largely accounts for the steeper slope. Soils in the southern portion of the project area are better-drained, except for Ash Swamp and the area surrounding an unnamed creek. I Soils I JI Soils mapped in the study area are shown in Table 3.6.1. The Kureb-Wando association includes excessively drained soils that are sandy throughout and occur on nearly level to 3-31 TABLE 3.6.1 , SOILS MAPPED IN THE STUDY AREA (USDA SCS 1989, BARNHILL 1986) `HYDRIC SERIES SYMBOL DRAINAGE CLASS FLOODING FREQ.' FLOODING. - DUW INCLUSIONS: (SOILS)' Croatan CT Very Poor Rare-Common Verv Long 25% (To. Mu, Pn) Croatan, Flooded CT Very Poor Frequent Long Croatan, Periled CT Very Poor Rare Dorovan Do Very Poor None-Common Very Long 10% (Mk) Leon" Lo Poor None-Rare Brief-Long 20% (Mu. Tot, Ma) Leon. Flooded" Lo Poor Rare-Common Brief-Long Muckalee Mk Poor Frequent Brief Murville Mu Very Poor None-Rare 20% (To, CT, Lo) Pantego Pn Very Poor None-Rare 20% (To, We, Ra) Pantego, Flooded Pn Very Poor Common Long-Very Long Pantego, Ponded Pn Very Poor None Rains Ra Poor None 15% (Wo. Pn, Ly, GT) Rains, Flooded Ra Poor Common Brief Torhunta To Very Poor None-Common Brief 25% (Pn. Mu, CT, To) "UPLAND SERIES SYMBOL DRAINAGE.CLASS LONGLEAF INCLUSIONS (SOILS)'. SITE , INDEX (50) Baymeade BaB Well 65 20% (BnB, Krb, Fo, On, Lo) Kutch Krb Excessive 52 159 (Wall, Boll, BaB. Ma, Lo. Mu) ' Mandarin Ma Somewhat Poor 60 20% (Lo, Tm) ' Newhan NhE Excessive -- 20% (BO, YaB) Tomahawk Tin Somewhat poor to 70 20% (Fo, Lo, We, BaB) , Moderate Wando WaB Excessive 70 20% (Pa, Krb, Ma, BaB. Lo) Woodington" Wo Poor 20% (Fo. Ra, Lo, To) ' * BnB = Blanton, BO = Bohicket, Fo = Foreston, Gt = Grifton, Ly = Lynchburg, On = Onslow, PaA = Pactolus. ** Leon and Woodington do not appear on the USACOE list (Environmental Lab 1987) but are on the NC Hydric soils list (SCS 1989). , 3-32 , sloping uplands. The Leon-Murville-Mandarin association includes soils that are very ' poorly drained to somewhat poorly drained with a weakly cemented subsoil. The published soil map suggests that approximately 37 percent of the entire study area includes ' hydric soils (e.g., Pantego, Murville, and Muckalee). The soil maps also indicate that about 25 percent of the area includes soils which are dry (such as Kutch and Mandarin). About 38 percent of the study area is mapped as Leon, which may demonstrate hydric soil characteristics. At numerous locations, observed soil traits do not match characteristics ' published (Barnhill 1986) for the mapped units. Hence, much of the area mapped as Leon does not fit the characteristic Leon profile, which includes a black layer (5YR 2/1) at 35 to ' 43 centimeters (14 to 17 inches). Instead, soils in these areas often appear to be either Woodington, which is gray (10YR 5/1) at that depth, or Mandarin, which is dark brown ' (7.5YR 3/2) at that depth. A large area mapped as Rains and an adjacent area mapped as I Murville also do not match the characteristic soil color profiles. ' Generally, field observations concur with the description of "Pine Barrens" soils offered by Ashe and Pinchot (1897). They note that "the soils are almost pure sand, containing very little clayey ingredients; loose, coarse-grained, dry on the surface, even soon after a rain, fresh below but becoming dry to a considerable depth, and usually with no differentiable subsoil. But in the smaller areas there is a top-soil of sand, often shallow, especially around ' the edges where stiffer loams form a more fertile subsoil" (p. 152). On-site examination and ' sampling revealed that extensive areas outside the large Carolina bays and isolated depressions are excessively drained. In some places, deep sands are seemingly incapable of ' sustaining any but minimal vegetation growth. Hydric soils and wetland considerations are discussed further in Section 4.1. ' The large amount of dredge spoil deposited along the Intracoastal Waterway on the mainland 1 3-33 creates a uniquely artificial landscape feature. Similar to a sand dune in structure, the area has in some places given rise to early successional invaders but remains largely barren and subject to wind induced movement. Frequent recreational traffic and ensuing disturbance also counters potential vegetation establishment. 3.6.4 Mineral Resources A number of sand and gravel mines are located in Brunswick County, but none are in the project study area. The Yellow Banks confined (diked) disposal facility (CDF) is located along the north side of the Intracoastal Waterway and covers approximately 50 hectares (123 acres). The Yellow Banks CDF is a disposal site for maintenance dredging along this section of the Intracoastal Waterway. The US Army Corps of Engineers, in their Environmental Assessment dated September, 1995, propose to use dredged material from Yellow Banks to create and restore sea turtle nesting habitat along 3,720 meters (12,200 feet) of beach front on Oak Island that has experienced excessive erosion over the past 20 years. Other benefits to their proposed project will include erosion protection of oceanfront development and increased disposal capacity in the Yellow Banks CDF. Exhibit 3.6.2 identifies the approximate location of the Yellow Banks CDF. 3.6.5 Hazardous Materials Sites and Underground Storage Tanks A survey was conducted to identify known and potential hazardous materials sites, hazardous waste generators and underground storage tanks (USTs) within the study area. Because no single comprehensive source of information is available which identifies all known and potential hazardous materials sites and USTs within the study area, the survey consisted of the following tasks. • Conducting a field investigation within the study area to identify and , investigate sites with evidence of underground storage tanks or a potential of I 3-34 containing or utilizing hazardous materials. ' Evaluating aerial photography and tax maps to identify land uses and property information within the study area. ' ' , • Examining records at the following agencies: ' North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management ' Groundwater Section Division of Solid Waste Management Solid Waste Section Hazardous Waste Section ' Superfund Section • Contacting representatives of the following agencies: 1 - Brunswick County Solid Waste Management - Brunswick County Fire Marshall ' - Brunswick County Department of Emergency Management - Brunswick County Landfill - Brunswick County Inspections As a result of the survey, two potential underground storage tank sites were identified within the study area. Exhibit 3.6.3 identifies the approximate location of each identified site. A ' description of each investigated site follows. Site No. 1: Midway Trading Post NC 211 at SR 1500 (Midway Road) Mike Richards, Ltd., Tank Owner ' Tank ID #: 0-022965 2-8,000 gallon gasoline tanks, installed 1986 Both tanks: ' Material: Steel Interior Protection: Cathodic Protection Exterior Protection: Unknown There is also an above ground, 500 gallon, diked, kerosene tank at this location. Site No. 2: Beach Pantry ' S. Middleton Ave. at E. Dolphin Dr. Acme Oil Co., Inc., Tank Owner Tank ID #: 0-022862 2-4,000 gallon gasoline tanks 3-36 All tanks: Material: Steel Interior Protection: None Exterior Protection: Paint According to an employee of the Beach Pantry, the two recorded 4,000 gallon tanks were removed early in 1995 and were replaced with a new 10,000 gallon tank and a 8,000 gallon tank. An examination of records at the Solid Waste Branch and Superfund Branch revealed that 1) no dump sites or sanitary landfills exist within the study area, 2) no sites listed on the CERCLIS (Comprehensive Environment Response Compensation and Liability Information System) exist within the study area and 3) no sites listed on the NC NPL (National Priority List) exist within the study area. The project study area lies within a ten mile radius of Carolina Power and Light's Brunswick Nuclear Plant which is listed on the North Carolina Inactive Hazardous Sites Inventory and on the CERCLIS. 3.6.6 Air Oualitv Air pollution is the result of industrial emissions and emissions from internal combustion engines. The impact resulting from the construction of a new highway or the improvements of an existing highway can range from aggravating existing air pollution problems to improving the ambient air conditions. Motor vehicles are known to emit carbon monoxide (CO), nitrogen oxide (NO), hydrocarbons (HC), particulate matter, sulfur dioxide (S02), and lead (Ph) (listed in order of decreasing rate). The primary pollutant emitted from automobiles is carbon monoxide. Automobiles are considered to be the major source of CO in the project area. For these reasons, the analysis presented is concerned with determining expected carbon monoxide levels in the vicinity of the project. 3-37 1 I 1 1 In order to determine the ambient CO concentration at a receptor near a highway, two concentration components are used, local and background. The local component is due to CO emissions from cars operating on highways in the near vicinity (i.e., distances within 100 meters) of the receptor location. The background component is due to CO emissions from cars operating on streets further from the receptor location. In this study, the local component was determined using line source computer modeling and the background component was determined by the Air Quality Section, Division of Environmental Management (DEM), North Carolina Department of Environment, Health and Natural Resources (NCDEHNR). These two concentration components were determined separately, then added together to determine the ambient CO concentration for comparison to the National Ambient Air Quality Standards (NAAQS). Automobiles are generally regarded as sources of hydrocarbons and nitrogen oxides. Hydrocarbons and nitrogen oxides emitted from cars are carried into the atmosphere where they react with sunlight to form ozone and nitrogen dioxide. It is the ozone and nitrogen dioxide that are of concern and not the precursor hydrocarbons and nitrogen oxide. Automotive emissions of HC and NO are expected to decrease in the future due to the continued installation and maintenance of pollution control devices on new cars. However, regarding area-wide emissions, these technological improvements may be offset by the increasing number of cars on the transportation facilities of the area. The photochemical reactions that form ozone and nitrogen dioxide require several hours to occur. For this reason, the peak levels of ozone generally occur 10 to 20 kilometers downwind of the source of hydrocarbon emissions. Urban areas as a whole are regarded as sources of hydrocarbons, not individual streets and highways. The emissions of all sources 3-39 I in an urban area mix together in the atmosphere; and in the presence of sunlight, the mixture , reacts to form ozone, nitrogen dioxide, and other photochemical-oxidants. Since there are ' no major urban areas in or adjacent to the project study area, it is not perceived that hydrocarbons and dioxides will present a problem. 1 I Automobiles are not generally regarded as significant sources of particulate matter and sulfur dioxide. Nationwide, highway sources account for less than seven percent of particulate ' matter emissions and less than two percent of sulfur dioxide emissions. Particulate matter ' and sulfur dioxide emissions are predominately the result of non-highway sources (e.g., industrial, commercial, and agricultural). Because emissions of particulate matter and sulfur ' dioxide from cars are very low, there is no reason to suspect that traffic on the project will cause air quality standards for particulate matter and sulfur dioxide to be exceeded. t Automobiles emit lead as a result of burning gasoline containing tetraethyl lead, which is ' added by refineries to increase the octane rating of the fuel. New cars with catalytic t converters burn unleaded gasoline eliminating lead emissions. Also, the United States ' Environmental Protection Agency (EPA) has required the reduction in the lead content of leaded gasolines. The composite average lead content of gasoline in 1974 was 0.528 grams , per liter; in 1989, this composite average had dropped to 0.003 grams per liter. In the future, lead emissions are expected to decrease as more cars use unleaded fuels and as the lead content of leaded gasoline is reduced. Because of these reasons, it is not expected that traffic on the proposed project will cause the NAAQS for lead to be exceeded. ' A microscale air quality analysis was performed to determine future CO concentrations resulting from the proposed highway improvements. "CAL3QHC (2.0) - A Modeling , Methodology for Predicting Pollutant Concentrations Near Roadway Intersections" was used ' 3-40 ' ' to predict the CO concentration at the nearest sensitive receptors to the project. Receptor ' sites were chosen to be the minimum right-of-way line throughout each alternative where the highest CO concentrations would be expected to occur and the public has the closest access. This represents the "worst case" for any receptors. Receptors were analyzed on each side i i' of the right-of-way between major intersections for each studied alternative. Exhibit 3.6.4 shows the location of each receptor site. ' Inputs into the mathematical model to estimate hourly CO concentrations consisted of a level roadway under normal conditions with predicted traffic volumes, vehicle emission factors, I, and meteorological parameters. The traffic volumes are based on the highest peak hour from average weekday traffic projections. The modeling analysis was performed for a "worse I case" condition using 360 wind directions at one (1) degree intervals to determine the highest I' CO concentrations. The "worst case" was found to be 0-10 degrees from the roadway depending on the distance to the receptor. Carbon monoxide vehicle emission factors were ' calculated for the years 1994, 2000, and 2020 using the EPA publication, "Mobile Source Emission Factors," and the accompanying MOBILESA mobile source emissions computer ' model. Table 3.6.2 shows the MOBILESA and CAL3QHC input parameters. 1 The background CO concentration for the project area was estimated to be 1.8 parts per ' million (ppm). Consultation with the Air Quality Section, Division of Environmental Management, NCDEHNR, indicated that an ambient CO concentration of 1.8 ppm is suitable for most areas of North Carolina if local CO monitoring data is not available. 1 Results of the air quality analysis are presented in Section 4.6.5. 1 3-41 TABLE 3.6.2 MOBILE5A/CAL30HC INPUT PARAMETERS MOBILE5A: PARAMETER Region Anti-Tampering Program Inspection/Maintenance Ambient Temperature Traffic Speeds Vehicle Mix Calendar Years Operating Mode ASTM Class CAL30HC: PARAMETER Averaging Time (ATIM) Settling Velocity (VS) Deposition Velocity (VD) Source Height (HL) Wind Speed (U) Wind Direction Stability Class (CLAS) Mixing Height (MIXH) Receptor Locations Receptor Height (ZR) Persistence Factor Surface Roughness Background -1 hour Concentrations - 8 hour Traffic Volumes INPUT Low Altitude Yes No 49.0°F Posted or Capacity Based Default 1994, 2000, and 2020 20.6% Non-Catalytic Cold Start 27.3% Hot Start 20.6% Catalytic Cold Start B INPUT 60 minutes 0 cm/sec 0 cm/sec 0 1.0 Meter/Second 0° - 360° a 10° Intervals Class F - Rural 400 Meters Right of Way, See Text 1.8 Meters 0.61 108 cm 1.8 Parts Per Million 1.1 Parts Per Million Peak Hour Projections Source: Guidelines for Evaluating the Air Quality Impacts of Transportation Facilities -March 1995 - NCDEHNR, Division of Environmental Management, Air Quality Section. 3.6.7 Noise A noise analysis was performed to determine the effect of the proposed project on noise levels in the immediate project area. This investigation includes an inventory of existing noise-sensitive land uses and a field survey of ambient (existing) noise levels in the study area. It also includes a comparison of the predicted noise levels and the ambient noise levels 3-42 r to determine the traffic noise impacts expected from the proposed project. Traffic noise impacts are determined from the current procedures for the abatement of highway traffic noise and construction noise, appearing as Part 772 of Title 23 of the Code of Federal Regulations. Characteristics of Noise Highway noise, or traffic noise, is usually a composite of noises from engine exhaust, drive train, and tire-roadway interaction. The magnitude of noise is usually described by its sound pressure. Since the range of sound pressure varies greatly, a logarithmic scale is used to relate sound pressures to some common reference level, using the decibel (dB). Sound pressures described in decibels are called sound pressure levels and are often defined in terms of frequency weighted scales (A, B, C, or D). v Because the A-weighted scale closely describes the response of the human ear to sound, it r is used almost exclusively in vehicle noise measurements. Sound levels measured using A- weighing are often expressed as dBA. Throughout this section, references will be made to dBA, which means an A-weighted decibel level. Sound pressure levels in this report are referred to as Leq(h). The Leq, or equivalent sound level, is the level of constant sound which in a given situation and time period has the same ' energy as does time varying sound. In other words, the fluctuating sound levels of traffic noise are represented in terms of a steady noise level with the same energy content. Noise Abatement Criteria To determine if highway noise levels are compatible with various land uses, the Federal Highway Administration (FHWA) has developed noise abatement criteria and procedures to 1 3-44 I be used in the planning and design of highways. These abatement criteria and procedures are set forth in accordance with Title 23 Code of Federal Regulations (CFR), Part 772, U.S. Department of Transportation, FHWA, Procedures for Abatement of Highway Traffic Noise and Construction Noise. A summary of the noise abatement criteria for various land uses is presented in Table 3.6.3. A noise impact occurs when noise levels either approach or exceed the criteria levels for each activity category or when the existing noise levels experience a substantial increase. The North Carolina Department of Transportation has determined the approach value to be one dBA less than the FHWA noise abatement criteria for each category. TABLE 3.6.3 NOISE ABATEMENT CRITERIA Hourly A-Weighted Sound Level - decibels (dBA) ACTIVITY CATEGORY ' LEQ (h) DESCRIPTION OF ACTIVITY CATEGORY A 57 (Interior) Lands on which serenity and quiet are of extraordinary significance and serve an important public need and where the preservation of those qualities is essential if the are is to continue to serve its intended purpose. B 67 (Exterior) Picnic areas, recreation areas, playgrounds, active sports areas, parks, residences, motels, hotels, schools, churches, libraries, and hospitals. C 72 (Exterior) Developed lands, properties, or activities not included in Categories A or B above. D Undeveloped lands. E 52 (Interior) Residences, motels, hotels, public meeting rooms, schools, churches, libraries, hospitals, and auditoriums. Source: Title 23 Code of Federal Regulations (CFR), Part 772, US Department of Transportation, Federal Highway Administration (FHWA), Procedures for Abatement of Highway Traffic Noise and Construction Noise. In accordance with the NCDOT Noise Abatement Guidelines, noise abatement will be considered when either of the following conditions exist: 3-45 a 1. The predicted design year noise levels approach or exceed the FHWA noise abatement criteria, or 2. The predicted design year noise levels substantially exceed existing noise I levels (greater than or equal to 15 dBA for less than or equal to 50 dBA existing noise levels, or greater than or equal to 10 dBA for greater than 50 dBA existing noise levels). Ambient Noise Levels I Ambient noise is noise which results from the natural and mechanical sources of human activity and is considered to be usually present in a particular area. Ambient noise levels were measured to quantify the existing acoustic environment and to provide a base for assessing the impact of noise levels for residences and other noise-sensitive receptors. I Ambient noise measurements were taken along the proposed project at representative locations using a GenRad 1988 Precision Integrating Sound-Level Meter and Analyzer. When measuring along existing roads, the microphone was located 7.5 or 15 meters (25 or 50 feet) from the center of the nearest lane of travel at an elevation approximately 1.5 meters (5 feet) above the existing ground. The noise levels were recorded for a 20 minute period during anticipated peak traffic periods. Traffic counts were taken at each measurement site during the sampling periods. Differences in the measured noise levels are attributed to 1 variations in site conditions and traffic volumes. The locations and measured exterior Leq noise levels are shown in Exhibit 3.6.5 and listed in Table 3.6.4. The existing roadway and traffic conditions were used with the most current traffic noise prediction model in order to calculate existing noise levels for comparison with noise levels actually measured. The calculated noise levels were within 0.1 to 6.0 dBA of the measured ' 3-46 TABLE 3.6.4 AMBIENT NOISE LEVELS Receptor' Location Description Mic to CL Noise Area .. o Near. of Level Lane (Fr),: (dBA) 1 1/2 mile from NC 211 Logging Road N/A 36.6 2 NC 133 near north end of runway at Brunswick Grass ROW, 15 65.8 County Airport Field 3 NC 133, between bridge and intersection of NC ass ROW, 15 64.0 133 & SR 1104 rd 4 SR 1104, 150' east of NE 65th Street cant Lot 15 60.8 5 NC 211, between SR 1500 & NC 133 ass ROW, t 15 62.5 metery 6 SR 1500 between first two curves from NC 211 ROW, Grass 15 63.1 rd 7 NC 211, west of SR 1500, 150' of Horizon Street ass ROW, 15 63.5 Field 8 SR 1190, between SE 42nd Street & NE 41st Grass ROW, 15 64.5 Street Yard 9 SR 1190, between SE 15th Street & 16th Street Grass ROW, 15 . 63.1 Church Yard 10 SR 1105, between SR 1190 & Yacht Drive Grass ROW, 15 48.8 Yard F71 SR 1105, between White Lane & SR 1190 Grass ROW, 7.5 57.7 Yard noise levels for all of the locations where noise measurements were obtained along existing roadways. Differences in dBA levels can be attributed to "bunching" of vehicles, stop-and go traffic movements and actual vehicle speeds versus the computer's "evenly spaced" vehicles and single vehicle speed. Ambient noise levels were estimated using the noise monitoring location that most closely resembled that of the subject receptor by roadway typical section and traffic volumes, or by location and related site conditions if not associated with an existing road 3-47 o- a 211 ? \ n V MILITARY OCEAN TERMINAL SUNNY POINT 0 n. I Uu `?.Mll? 0 / \ 1 -ZI S ? `5ti5 I BRUNSWICK NUCLEAR POWER F ?zz /?. \ SUNSET `?---- HARBOR / - YACNTOR. ilk :` ?\ a SOUTHPOltt / WEST \ \..._...?.. / WEST OAK ISLI Q )? v i SIR 1104 (WEST BE y :: ATLANTIC OCEAN) 11 North Carolina • Department of Transportation 0 Environmental Assessment i Second Bridge to Oak Island LEGEND Brunswick County, North Carolina I • NOISE MONITORING LOCATIONS a, Noise Monitoring Locations Exhibit 3.6.6 Results of the Noise Analysis are presented in Section 4.6.7. 3.6.8 Prime, Unique, and Important Farmlands Existing agriculture uses in the study area may or may not be classified as Prime, Unique, and Statewide or Locally Important Farmlands. Farmlands are classified by soil type, not by land use. However, land occupied by an urban use is not considered to be a special status farmland, regardless of soil type. According to the US Council on Environmental Quality (1976), prime farmland is defined as land having the best combination of physical and chemical characteristics for producing food, feed, forage, fiber and oilseed crops. Prime farmlands are those having the soil quality, growing season and moisture supply needed to economically produce sustained high yields of crops when properly managed, including water management. Prime farmland includes cropland, pastureland, rangeland and forestland; but not land converted to urban, industrial, transportation or water uses. Unique farmlands are those whose value is derived from their particular advantages for growing specialty crops. Statewide and locally important farmlands are defined by the appropriate state or local agency as important for the production of food, feed, forage, fiber or oilseed crops. Prime, unique and important farmlands are listed in "Important Farmlands in North Carolina," USDA, SCS, 1992. In accordance with the Farmland Protection Policy Act of 1981, a farmland conversion form (Form AD-1006) was provided to the Soil Conservation Service (SCS) for review. A copy of Form AD-1006 is included in Appendix A.2. s ' 3.7 NATURAL RESOURCES Plant communities within each alternative corridor were identified from aerial photographs 1 3-49 and ground-checked on site. Forest community types for relatively undisturbed ("natural") forests follow Schafale and Weakley (1990), and community types for disturbed forests follow Eyre (1980). With few exceptions, plant nomenclature follows Radford et al. (1968); thus, author citations of scientific names are not provided. Within each community, a list of the predominant plant species and general site description was developed on-site. These lists are not exhaustive, but they probably include sufficient numbers of species that over 95 percent of the total standing plant biomass is identified. For communities dominated by trees, approximate age-class was estimated. Tree ages estimated to be over 60 years were checked using an increment borer. Typical wildlife communities were researched generally via review of appropriate literature (e.g., Bull and Farrand 1977, Martof et al. 1980, Webster et al. 1985). On-site observations of habitat conditions refined estimates of suitability for typical and protected wildlife. Vegetation community conditions, proximity to type changes and distance to water were factors used to characterize wildlife habitats and to estimate quality for all species considered. Technical results of field examinations are documented in Blank and Braham (1996). 3.7.1 Biotic Communities Ashe and Pinchot (1897) refer to the "narrow belt lying between the vast coastal swamps and the coast in the counties of Brunswick, Onslow, and Carteret" as part of the "Pine Barrens" (p. 152). Within these pine barrens, however, a wide variety of localized conditions occur and generate variable plant communities which also support varied animal communities. Brunswick County as a whole is dominated by forest land. Only 26 percent of the county is not forested (calculated from data in Johnson 1990), and forest management is an important industry. Brunswick County ranked seventh in total volume harvested in the 3-50 1980's from the 21 Southern Coastal Plain counties. Pine-dominated forests, particularly loblolly pine, are most common today in Brunswick County as a whole, occupying 99,387 hectares (245,582 acres), nearly one-half of the county. Bottomland forests are the second-most common, occupying about 41,046 hectares (101,424 acres), about 18 percent ' of the county. Oak-dominated forests are least common, occupying about 24,345 hectares (60,156 acres), about 11 percent of the county. Previously, various longleaf pine communities dominated much of Brunswick County (Pinchot and Ashe 1897) on sites currently occupied by loblolly pine. The study area crosses diverse communities ranging from sparse and barren open areas to thickly vegetated Carolina bays and natural drains or depressions. Habitats range from exceedingly dry to exceedingly wet, with frequent ecotonal changes. Pond pine and longleaf pine are dominate overstory species in wetter areas, while plantations of slash pine and loblolly pine dominate dryer areas. Pocosin, pine savanna, pine flatwoods, and wet pine flatwoods communities all occur. Terrestrial Communities Land in the project area can be classified into three land-use categories: developed, cultivated, and forest. These three categories are further sub-divided and discussed in the sections that follow. Developed Land: Developed land is characterized by areas repeatedly disturbed by humans, preventing natural recovery of vegetation. Three basic types of developed land occur within the study area: urban, right-of-way/roads, and spoil bank. The amount of developed land is nearly the same in all three corridors. '. 1 3-51 Urban: The presence of structures, homes, businesses, and sheds identifies Urban areas. Urban areas include surrounding land that is managed to benefit the development, especially paved city streets, driveways, parking areas, gardens, and landscaping. A few scattered homes or businesses occur north of NC 211. Complete urbanization occurs south of the Intracoastal Waterway on Oak Island. In all three corridors, urban lands are limited to the corridor ends and occupy about one-half of the developed land category. Landscaping in the developed land category consists typically of widely-spaced trees, especially loblolly pine (Pinus taeda), longleaf pine (Pinus palustris), flowering dogwood (Cornus florida), American holly (Ilex opaca), eastern redcedar (Juniperus virginiana), blackjack oak (Quercus marilandica), southern red oak (Quercus falcata var. falcata), laurel oak (Quercus laurifolia), laurel cherry (Prunus caroliniana), and live oak (Quercus virginiana). On Oak Island these trees are remnants from the time when the area was covered with Maritime Evergreen Forest. Flowering shrubs are often planted beneath these trees. Various azalea hybrids (Rhododendron spp.), pampas grass (Cortaderia selloana), various cultivars of holly (Ilex spp., especially I. cornuta 'Burfordii'), waxmyrtle (Myrica cerifera), oleander (Nerium oleander), and crape-myrtle (Lagerstroemia indica) are most popular. The herb layer consists largely of mowed grasses, especially fescue (Festuca sp.), paspalum (Paspalum sp.), and Bermuda grass (Cynodon dactylon). In all cases, the vegetation is secondarily important, when compared with the structures, and the vegetation is highly modified by human activity. Right-of-Way/Roads: Developed land also includes a powerline right-of-way 3-52 11 and unpaved roads that traverse the corridors. The powerline runs from Midway to Oak Island through the study area. The vegetation under the powerline is frequently mowed, precluding development of a stable natural community. Vegetation in the right-of-way contains sprouts and seedlings of species found in the adjacent forest communities. All roads are narrow "woods roads," not paved, only 2 to 3 meters (6.2 to 9.3 feet) wide and I negotiable only with 4-wheel drive vehicles. Most roads are located on small ridges, the driest portions of the study area, and are covered with either bare sand or pine needle litter. If vegetation is. present, it generally grows in the middle of the road between the tire tracks, and consists of weedy plants, especially Bermuda grass, goose grass (Eleusine indica), sandspur (Cenchrus sp.), nut sedge (Cyperus spp.), plantains (Plantago spp.), and dandelion (Taraxacum officinale). When these roads cross small streamhead seepages, the road surface turns to muck, where rushes (Juncus spp.) replace the species listed above as the most important plants. These crossings are seasonally flooded for long periods, and episodically flooded in summer and fall after heavy rains. Most of these streamhead seepages qualify as jurisdictional wetlands. N Spoil Bank: The developed land category further includes spoil banks located along the north shore of the Intracoastal Waterway, where spoil was pumped after dredging the navigation channels in the Intracoastal Waterway and lower Cape Fear River. Overall foliar cover of vegetation on spoil banks is only about 35 percent, due to the di i d i unfavorable so l con t ons cause by the spoil itself and frequent redisturbance from 11 1 3-53 recreational off-road vehicles. But foliar cover at any one place varies from zero to 100 percent. Areas located immediately north of the Intracoastal Waterway, especially a strip of vegetation about 15 meters (50 feet) wide, have 100 percent foliar cover. This strip grows on the artificial sand levee created to contain dredge spoil. The levee rises steeply above the Intracoastal Waterway to a height of about 8 meters (25 feet). The south slope measures over 100 percent and is not completely stable. Mass wasting occurs as the levee naturally slides slowly into the Intracoastal Waterway, as evidenced by several uprooted dead trees on the slope surface. The north side of the levee has been filled with dredge spoil to a height of about 8 meters (25 feet), a height equal to the levee itself. Thus, the entire spoil area roughly approximates a large sand dune. The levee is covered with loblolly pine, laurel oak, eastern redcedar, black cherry (Prunus serotina), water oak (Quercus nigra), and live oak. Basal area of these trees averages about 23 mZ/hectare (100 ft2/acre), and larger trees are about 40 years old. The understory vegetation of this strip contains waxmyrtle, winged sumac (Rhus copallina), and yaupon (Ilex vomitoria). The vine layer is especially well-developed. It commonly grows on and over the tree and shrub layer, creating a thick tangle. The vine layer contains greenbriers (Smilax bona-nox and S. rotundifolia), muscadine (Vitis rotundifolia), Virginia creeper (Parthenocissus quinquefolia), and peppervine (Ampelopsis arborea). The ground layer contains mostly dead leaves and an occasional vine listed above. Along edges where sunlight is greater, indigo bush (Amorpha herbacea) and primrose (Oenothera laciniata) occur. 3-54 I North of this strip the spoil bank becomes increasingly non-vegetated, until at the northern fringe it largely lacks vegetation. In this transition zone, trees occur as scattered individuals over a weedy ground layer, frequently re-disturbed by off-road vehicles. Bare sand often occurs between trees. The following species were observed in this transition zone: live oak, eastern cottonwood (Populus deltoides), eastern redcedar, black cherry, loblolly pine, persimmon (Diospyros virginiana), tooth-ache tree (Zanthoxylum americana), ground cherry (Physalis sp.), prickly-pear (Opuntia compressa), broomsedge (Andropogon virginicus), winged sumac, Virginia creeper, poison-ivy (Rhus radicans), peppervine, dallis grass (Paspalum dilatatum), gaillardia (Gaillardia pulchella), muscadine, summer grape (Vitis aestivalis), pepper-grass (Lepidium sp.), primrose, greenbrier (Smilax bona-nox), sandspurs, sea-myrtle (Baccharis halimifolia), dogfennel (Eupatorium capillifolium), and I?. waxmyrtle. In addition, black willow (Salix nigra) occurs locally in small depressions. Cultivated Land: Cultivated land is characterized by land used on a regular basis for annual crops or pasture. Cultivated land is the least common land-use category in the study area ' and pasture is the predominate use of this cultivated land. Fescue, orchard grass (Dactylus glomerata), and paspalum (Paspalum spp.) are the predominate forage grasses. Since cultivated land is intensively managed by mowing and sometimes herbiciding, natural conditions do not occur. Cultivated land will therefore not be discussed further in this ' section. Forest Land: The forest land category is defined by trees and/or large shrubs that form a more-or-less continuous canopy. Forest land in the study area is subdivided into five broad community types: pine plantation, longleaf pine, pocosin, bottomland hardwoods and coastal 1 3-55 scrub. Like many places in Brunswick County, no oak-dominated forests occur. Except as described below for bottomland hardwoods, each community type is composed of several ' individual communities which often occupy small areas less than 0.1 hectare (0.2 acre) in size. Since the same communities occur repeatedly, an overall mosaic pattern of communities exists, especially for longleaf pine. Individual communities are not mapped ' separately, due to their small size. r Pine Plantation: The Pine Plantation type is characterized by plantings of slash pine (Pinus elliottii), loblolly pine, and one small area of longleaf pine. The pine plantations were established about 28 years ago and were bedded before planting. The pine plantations were established on many soil types, especially Leon, Murville, Mandarin and Kureb. Areas with very poorly drained soils, largely Croatan and Torhunta, were not converted to plantations. Most plantations were planted in slash , pine, which is not native to North Carolina. Before conversion to plantations, these sites probably supported various longleaf pine communities, especially pine/scrub oak sandhill, wet pine flatwoods, and pine savanna. Some of the understory of these previous communities persists, and it ' undoubtedly accounts for the high species diversity noted below. A large section of the plantations in the study area burned catastrophically in 1993. Today burned areas contain standing dead slash and loblolly pine trees. Scattered volunteer longleaf pines survived the fire, and understory plants now about one meter (three feet) tall have regrown from sprouts. Plantation success and the regrowth of natural (volunteer) understory vegetation in 3-56 , I plantations varies considerably, depending on soil type. Plantations on Kureb and the drier phases of Leon soils have not been successful. Planted pines on these dry, infertile soils have grown only three to five meters (10 to 16 feet) since planting in g about 1967. Slow growth has precluded forming a well-developed canopy, so direct sunlight often reaches the forest floor. As a result, scattered longleaf pine, turkey oak (Quercus laevis), bluejack oak (Quercus incana), and live oak have volunteered ' among the planted pines. In addition, shrub and ground layers have developed naturally below these trees. Foliar cover of the shrub and ground layers varies between 25 and 50 percent. On dry soils, plants occur as scattered individuals or small clumps of individuals separated by bare white sand or pine needle litter. The shrub and ground layers contain pinelands three awn (Aristida stricta), creeping blueberry (Vaccinium crassifolium), dwarf waxmyrtle (Myrica cerifera var. pumila), inkberry (Ilex glabra), fetterbush (Lyonia mariana), grassleaf gold-aster (Heterotheca graminifolia), sparkleberry (Vaccinium arboreum), sand myrtle (Leiophyllum buxifolium var. buxifolium), broomsedge, jessamine (Gelsemium sempervirens), jointweed (Polygonella polygama), and reindeer moss (Cladium sp.). Plantations on moist soils, especially Mandarin, Murville and wetter phases of Leon, are more successful. Even though furrows created by bedding have caused considerable disruption, the understory of these plantations is relatively species-rich with more foliar cover, when compared to plantations on dry soil and to plantations ' in general. Foliar cover averages 70 percent, and height ranges between one and three meters (three and nine feet). This thicker understory largely accounts for the darker color and greater texture observable on aerial photographs.. Wildfires mentioned above have probably helped to maintain understory species diversity by reducing shade and other competition from planted pines. Limited disjunct areas on '' 3-57 the wettest plantation sites qualify as jurisdictional wetlands. On moist soils, longleaf pine, pond pine (Pinus serotina), and sweetgum (Liquidambar styraciflua) occasionally volunteer among the planted pines, forming a low-density second canopy. Pond pine and longleaf pine both often survived the 1993 fire, and today these species provide a sparse overstory. Below the canopy a sparse to dense small tree and shrub layer occurs. It contains live oak, redbay (Persea borbonia), creeping blueberry, waxmyrtle fetterbush (Lyonia lucida), gallberry (Ilex coriacea and L glabra), chokeberry (Sorbus arbutifolia), titi (Cyrilla racemiflora) and jessamine. A relatively species-rich ground layer occurs whenever overtopping vegetation layers allow sunlight to reach the forest floor. The ground layer contains little bluestem (Andropogon scoparius), panic grasses (Panicum spp.), giant cane (Arundinaria gigantea), nut-sedge (Cyperus sp., possibly C. strigosus), chalky bluestem (Andropogon capillipes), pinelands three awn, sand myrtle false asphodel (Tofieldia sp.), meadow-beauty (Rhexia virginica), cinnamon fern (Osmunda cinnamonea), coinwort (Centella asiatica), blue flag (Iris virginica), and candyweed (Polygaga lutea). Venus flytraps (Dionaea muscipula) and pitcher plants (Sarracenia flava) occur in the burned slash pine plantation in an area, about 2012 meters (6600 feet) south of NC 211. Pinelands three awn was more abundant in furrows between planting rows than in the rows themselves. Longleaf Pine: The Longleaf pine type is characterized by dominance of natural longleaf pine in the overstory. Associate species in the Longleaf pine type vary considerably, principally because of differences in soil type, soil moisture, and fire 3-58 frequency. Typical host soils in the study area include Kureb, Leon, Mandarin, and Tomahawk. Sites on Kureb soil and the drier phases of Leon soil are well-drained to excessively well-drained. Sites on Mandarin and Tomahawk soil are somewhat poorly drained in winter but are well-drained in summer. All longleaf pine stands in the study corridors have a long history of more-or-less frequent, low-intensity wildfire. Sites with annual fires in summer typically have more understory grasses than sites that burn less often and/or in winter, which have I? more understory shrubs. The most recent fire in the study corridor occurred in 1993, ' in the northern portion of the study area. Scorched tree bark in all longleaf pine stands indicates that fire has occurred at all locations within the last 10 years. Soil and fire differences produce several different longleaf pine communities, making the longleaf pine type the most vegetationally complex type in the study area. Four ' more-or-less distinct longleaf pine communities exist: Pine savanna, wet pine flatwoods, pine/scrub oak sandhill, and coastal fringe sandhill. Idealized examples of each community are described by Schafale and Weakley (1990). Prior to conversion, most areas currently in plantations were forested with longleaf pine. The area occupied by an individual longleaf pine community can be quite small, only 0.1 hectare (0.2 acre), with an equally small but different community adjacent. This pattern occurs repeatedly, creating an overall mosiac of small communities. These four communities are described below. All longleaf pine communities in the study area are uneven-aged, containing longleaf r pine trees in at least three different age classes. This situation exists because all stands have relatively open canopies that allow regeneration beneath older trees. 1 3.59 Most large longleaf pine trees are about 50 years old, but sapling-sized and ' grass-stage trees occur also. In addition, widely scattered among these trees, are about ten trees over age 120 years. A few of these old trees are scarred from turpentine extraction. ' Longleaf the stumps occur in the understo of many longleaf leaf pine ry y g pine stands at a density of about 250 stumps/hectare (100 stumps/acre). Although decay partly obscures some rings, most stumps contain roughly 180 growth rings. Many stumps also showed scars from turpentining. Collected data suggest that the study area was extensively turpentined and that most turpentined trees were subsequently harvested about 50 years ago. Most longleaf pine trees that are 50 years old today are probably offspring from the "original" pine cover. Many pine stumps contain lighter wood. Pine Savanna: The Pine savanna community in the study area generally occurs on Leon soils. In general, these sites are drier than the "typical" pine savanna site described by Schafale and Weakley (1990), but many are relatively undisturbed. The largest single pine savanna occurs about 609 meters (2000 feet) south of NC 211. Pine savanna also occurs as small patches only fractions of a hectare in size, scattered within other longleaf communities. The highest quality (least disturbed) pine savanna occurs in small areas along the south rim of the large Carolina Bay. Pine savanna is essentially a two-layered community, characterized by a relatively open canopy of longleaf pine with a ground layer dominated by grasses. The ground layer contains pinelands three awn, little bluestem and panic grass. Together they 3-60 comprise 50 to 70 percent of the foliar cover. Twenty to 40 percent of foliar cover is comprised of creeping blueberry, inkberry, sand myrtle, St. John's wort (Hypericum sp.), pixie-moss (Pyxidanthera barbulata var. barbulata), yellow-eyed grass (Xyris sp., probably X. caroliniana), yellow star-grass (Hypoxis hirsuta), meadow-beauty, bracken fern (Pteridium aquilinum), grassleaf gold-aster and deertongue (Carphephorus sp.). The remaining ten to 30 percent of ground cover is either bare sand or pine litter. A midstory of small trees typical of most other forest communities is lacking, but the i understory of pine Savannas is generally species-rich. The list above is relatively short, probably because the pine savannas here are somewhat drier than the "typical" savanna, and they simply contain fewer species. Also these sites were observed early in the growing season, before monocots with grass-like leaves, like selected orchids (Calopogon and Clistes) and star-grass (Aletris), became much more noticeable in flower. Wet Pine Flatwoods: In the study corridors, the wet pine flatwoods community generally occurs on Leon and Tomahawk soils, and many sites are relatively undisturbed and of good quality. This community occurs mostly in the southern i portions of the study area, north of the spoil bank. It also occurs in small patches, less than one hectare, scattered within the other longleaf pine communities. The highest quality wet pine flatwoods occurs outside the corridors along the south rim I of the large Carolina Bay The wet pine flatwoods community is a two-layered community. In the study area, ' the overstory contains widely-spaced longleaf pine with small numbers of pond pine, 1 3-61 water oak, and swamp blackgum (Nyssa sylvatica var. biflora) intermixed. With increases in soil organic matter content, the wet pine Flatwood community grades into one of the Pocosin types described below. Shrubs with a foliar cover varying between 60 and 90 percent dominate the understory. Locations on the drier phases of Leon and Tomahawk soils have lower foliar cover that grows not more than one to two meters (three to six feet) in height. This cover includes wild olive (Osmanthus america), dangleberry (Gaylussacia frondosa), American holly, yaupon, gallberry, dwarf waxmyrtle, creeping blueberry and fetterbush. In addition, herbs that provide 10 to 40 percent of foliar cover occur scattered among the shrubs. These herbs include pinelands three awn, little bluestem, bracken fern and yellow eyed-grass. On the wetter phases of Leon and Tomahawk soils--those that grade into Croatan and Torhunta soils--percent foliar cover is higher and vegetation grows taller, up to three meters (10 feet). In addition to the species listed above, the following species occur: redbay, sweetbay (Magnolia virginiana), loblollybay (Gordonia lasianthus), waxmyrtle, gallberry, fetterbush, titi, giant cane, rush- featherling (Pleea tenuifolia), false asphodel and wild bamboo (Smilax laurifolia). These wetter sites are transitional to jurisdictional wetlands in pocosins, described below. The thicker understories also account for areas with greater texture and darker color on aerial photographs. Pine/Scrub Oak Sandhill: The pine/scrub oak sandhill community occurs on the driest soils in the study area. Kureb and the drier phases of Leon are typical host soils. As with other longleaf pine communities, the canopy is dominated by longleaf pine, but a sparse subcanopy of turkey oak, bluejack oak, blackjack oak, and scrubby post oak (Quercus margaretta) occurs also. In addition, small sassafras (Sassafras 3-62 i albidum) and persimmon trees occur--probably sprouts from underground roots ,i repeatedly top-killed by periodic fires. Foliar cover of the shrub and ground layers ranges between zero and 35 percent. The r; shrub layer contains inkberry, sweetleaf (Symplocos tinctoria), creeping blueberry and dwarf waxmyrtle. The ground layer contains mostly pinelands three awn, but also scattered stinging nettle (Cnidoscolus stimulosus), Carolina ipecac (Euphorbia ipecacuanhae), greenbrier (Smilax bona-nox), bracken fern, grassleaf gold-aster and goat's rue (Tephrosia virginiana). Places without shrub or ground cover are covered either with white sand or pine litter. Coastal Fringe Sandhill: The coastal fringe sandhill community occurs on Kureb, Mandarin, and Leon soils. Except for the presence of sand live oak (Quercus virginiana var. geminata), this community is similar to the pine/scrub oak sandhill community. This similarity makes differentiation between these communities sometimes difficult. The coastal fringe sandhill community was noted whenever several sand live oak trees occurred in close proximity. The coastal fringe sandhill community occurs principally in the southern portions of the project area, north of the spoil bank. It also occurs in patches of less than one hectare scattered within the other longleaf pine communities. The highest quality coastal fringe sandhill community occurs outside the corridors along the sand ridge on the southern rim of the large pocosin near the center of the study area. Longleaf pine dominates the overstory, but a sparse to moderately dense subcanopy r of wild olive, turkey oak, bluejack oak and especially sand live oak occurs. Sand live oak sometimes occurs in small colonies which exclude all ground vegetation, probably 1 3-63 because of root competition and smothering by leaf litter. Foliar cover of the shrub layer averages about 30 percent. It contains sparkleberry, fetterbush, sand-myrtle, myrtle-leaved holly (Ilex cassine var. myrtifolia), gallberry, sweetbay, dwarf huckleberry (Gaylussacia dumosa) and creeping blueberry. Foliar cover of the ground layer varies between 30 and 50 percent. It contains mostly pinelands three awn, but it also includes jessamine, grassleaf gold-aster, pixie-moss, lead plant, black-root (Pterocaulon pycnostachyum), bracken fern, deer-tongue, St. John's wort and milkweed (Asclepias sp., probably A. humistrata). Pocosin: The Pocosin Type occurs on organic soils or soils with a histic epipedon, mostly Croatan, Murville, Muckalee, and Torhunta. These sites are invariably jurisdictional wetlands, and most wetlands in the study area are vegetated with pocosin. Two basic pocosin communities occur in the project area: Streamhead Pocosin and High Pocosin. Descriptions of idealized examples of each community are provided by Schafale and Weakley (1990). Eyre (1980) does not distinguish among communities dominated by pond pine, lumping them all into the Pond pine type (#98). Pocosin communities depend on wildfire to mineralize nutrients held in organic matter and to help maintain species diversity (Christensen 1988). Only pocosins in the northern portion of the study area show evidence of recent fire, the wildfire of 1993. In fact, old fire plow lines along the ecotone separating some longleaf pine communities from pocosin communities probably indicate management efforts to prescribe burn only the longleaf pine. As a result, most pocosins in the study area are thickly overgrown. Human travel through them is impossible without cutting a 3-64 trail. Lack of fire has lowered overall quality of the pocosin communities, by favoring a few species of shrubs and lowering overall species-richness. Schafale and Weakley (1990) hypothesize that fire is more frequent in Streamhead Pocosins than in other pocosin communities. The ecotone separating pocosin communities from adjacent communities, especially longleaf pine, provides potential habitat for several protected plant species. I Streamhead Pocosin: The streamhead pocosin community occurs above the 7.6 meter (25 feet) contour line, along the headwaters of small streams. Water movement in streamhead pocosins is largely by subsurface flow through shallow more-or-less dendritic depressions that cross the landscape. Well defined drainage channels with intermittent -' or permanent flow are lacking in this community, except for the streamhead located approximately 2317 meters (7600 feet) south of NC ' 211 and on the west edge of the study area. When the elevation of streamheads drops below about 7.6 meters (25 feet), defined drainage channels with intermittent or permanent flow have generally developed, and the vegetation changes to bottomland hardwoods. The overstory of streamhead pocosins contains pond pine, loblolly pine, red maple (Acer rubrum), loblollybay and sometimes swamp blackgum. Overstory dominance is highly variable, probably owing to varying levels of disturbance when the adjacent pine plantations were established. Probable disturbances include trampling by large machinery and selective harvest of merchantable trees, especially pond pine and possibly all pondcypress (Taxodium ascendens). The larger 1 3-65 I pond pine trees are about 30 centimeters (12 inches) in diameter at breast height (dbh) and between 55 and 60 years old. A well-developed shrub layer invariably occurs, owing to the lack of I wildfire. Average foliar cover exceeds 90 percent and includes I inkberry, honeycup (Zenobia pulverulenta), fetterbush, redbay, sweetbay, titi and red chokeberry. The vine layer contains wild r bamboo which grows on and over other vegetation, tying it together, ' and making human travel very difficult. The ground is mostly covered with dead leaves to a depth of about 10 centimeters (4 inches), although I scattered Virginia chain fern (Woodwardia virginica), giant cane and chalky bluestem along edges where more sunlight reaches the ground layer were observed. High Pocosin: The high pocosin community typically occurs on either ' Murville or Croatan muck soils. High Pocosins in the study area occur either in Carolina Bays or Ashpole Swamp. Small areas of High Pocosin may actually classify better as either Pond pine Woodland or Bay Forest (sensu Schafale and Weakley (1990)), but they are not treated separately in this report owing their small area and similarity to High Pocosin. Species composition of the High Pocosin community is similar to the Streamhead Pocosin. The overstory generally contains only pond pine, but sometimes also loblollybay and red maple. Except in Ashpole ' Swamp, individual pond pine trees are generally widely spaced; many 3-66 areas have only about 80 trees/hectare (32 trees/acre). This allows ' complete dominance of intervening areas by the shorter, small tree/large shrub layer, which contains redbay, sweetbay, loblollybay, i i d llb t t an ga erry. The overall appearance is a short canopy of bays about 3 meters (10 feet) tall with occasional "emergent" pond pines rising above. This canopy structure probably results from selective removal of merchantable pond pine and fire suppression favoring the I small tree/large shrub layer. Wild bamboo occurs everywhere, ' I growing on and over all other plants. i' The shrub and ground layers are covered only with dead leaves in areas i ith ll d l d ll t /l h b l Wh w a we - eve ope sma ree arge s ru ayer. ere sufficient ' sunlight occurs, the shrub layer develops containing fetterbush, waxmyrtle, red chokeberry and sometimes honeycup. The ground layer ' contains Virginia chain fern, giant cane and sphagnum mosses (Sphagnum spp.). Bottomland Hardwoods: One bottomland hardwoods community occurs within the study area, the coastal plains bottomland hardwoods (Blackwater Subtype). Schafale and Weakley (1990) have described a typical community. Eyre (1980) does not describe a similar community, but his Willow - Oak--Water Oak--Diamondleaf (Laurel) Oak (Cover Type #88) and ' Sugarberry--American Elm--Green Ash (Cover Type #93) are most comparable. In pre-colonial times, a somewhat similar community occurred on these same sites, except that pondcypress was probably more abundant and ' individual stem quality of trees was higher. 1 3-67 The coastal plains bottomland hardwoods community is distinguished by topographic position and a mixed-species canopy of various wet-mesic hardwoods. In the project area, this community develops along Mercers Mill Pond, an unnamed creek that drains into the Intracoastal Waterway, and the eastern parts of Ash Pole Swamp. With one small exception in the northwestern part of project area, the bottomlands hardwood community occurs below the 8 meters (25 feet) topographic contour along small perennial streams. The community occurs only on Muckalee and Murville soils, which are often water-saturated in late winter and early spring, and episodically at other times of high rainfall. Unlike many places in North Carolina, none of this community in the study area has been artificially drained. Most of this community qualifies as jurisdictional wetlands. The upper canopy of the bottomland hardwoods community contains swamp blackgum, sweetgum, laurel oak, water oak, red maple, American elm (Ulmus americana), loblolly pine, redbay and sweetbay. All bottomlands, except the young stand in the northern part of project area, contain scattered large, decayed stumps, and many canopy trees that are crooked and poorly formed. Such evidence suggests that the most merchantable trees, probably including pondcypress, have been selectively harvested--a practice that has lowered stand quality. The sub-canopy of the bottomland hardwoods community contains saplings of some upper canopy species and also musclewood (Carpinus caroliniana), American holly, titi and waxmyrtle. Dominance of the upper and lower canopies is relatively low owing to the harvesting. 3-68 I ' With a foliar cover that varies between 35 and 60 percent, the shrub layer is 1 well developed, largely the result of the low density overstory. The shrub layer contains doghobble (Leucothoe axillaris var. axillaris), pepperbush (Clethra alnifolia), highbush blueberry (Vaccinium corymbosum and V. ' atrococcum), fetterbush and especially gallberry. The vine layer contains greenbrier (Smilax rotundifolia), poison-ivy, muscadine, crossvine i (Anasostichus capreolata), jessamine and climbing hydrangea (Decumaria I' barbara). Foliar cover of the ground layer is low, about 5 percent, owing to dominance of other layers. Most of the ground surface is covered with dead leaves. Unlike some bottomlands, ground layer species in bottomlands in the corridors do not appear limited by flooding. The ground layer contains sedge (Carex spp. ), wild ginger (Hexastylis arifolia), spotted pipsissewa (Chimaphila maculata), netted chain fern (Woodwardia areolata), Virginia chain fern and partridgeberry (Mitchella repens). Coastal Scrub: The coastal scrub type, the least common woody community in the study area, is composed of two communities: salt scrub and coastal fringe evergreen forest, both described by Schafale and Weakley (1990). Coastal scrub occurs only on Oak Island. Located along Davis Canal, coastal scrub communities occur upslope of saltwater tidal areas. The two communities composing coastal scrub are lumped together because of the very small area occupied by each, their juxtaposition and the moderately large ' number of species in common. I Species of salt scrub communities are more tolerant of salt-laden winds than ' species of the coastal fringe evergreen forest, although neither community 1 3-69 tolerates tidal flooding. Sea ox-eye (Borrichia frutescens) waxmyrtle, southern redcedar (Juniperus silicicola), marsh elder (Iva frutescens) and gounndsel-tree grow adjacent to the brackish marsh in places subjected to salt winds. These plants have only leaf litter and bare sand beneath them. Behind this protective fringe the following additional plants occur: loblolly pine, laurel oak, laurel cherry, redbay and black cherry. Beneath these trees, only leaf litter and scattered wild onions (Allium sp.) occur. A vine layer containing Japanese honeysuckle (Lonicera japonica), greenbrier and Virginia creeper, grows on and over other plants. Terrestrial Wildlife In the project study area, wildlife habitats range from saltwater aquatic to streamhead pocosin across a relatively shallow topographic range. Though exhibiting complex interspersion, wildlife habitats can be roughly divided according to the associated soils underlying them. According to Barnhill (1986), three broad soil associations typically occur: Dorovan, Muckalee. Murville, Panteeo, and Torhunta soils provide habitat for white-tailed deer, black bear, raccoons, fox, rabbit, bobcat, opossum, birds and other wildlife. Baymeade, Leon, and Mandarin are better drained soils than the preceding series but they provide habitat for the same wildlife species. Some understory vegetation has developed in most of these areas. Kureb and Newhan provide poor habitat for wildlife. Sparse understory vegetation and droughty conditions create little forage. Tree growth is extremely slow. Only a very few birds were observed in these areas and very few signs of other species. Generally, the highest and driest sites demonstrate poor productivity, with growth rates and 3-70 ' stand densities exceedingly low, almost no midstory and only rarely any groundcover. In ' contrast, the wettest sites are thickly vegetated, typically producing multiple canopy layers and a tangle of vines. The diversity of plant communities resulting from subtle differences in hydrologic regimes provides marked differences in the ability to support wildlife. However, many species of wildlife occurring in this vicinity will move among various adjacent habitats in order to obtain food and cover. Specific habitat needs of protected species are addressed in Section 3.7.4. Where fires have occurred, pine savanna and wet pine flat conditions have been somewhat maintained, so habitats are open and often parklike. Mourning doves (Zenaida macroura) were occasionally observed in more open areas. A covey of Bobwhite quail (Quiscalus quiscula) flushed in the pine savanna south of the central Carolina bay and quail calls were heard in a numerous locations. In such areas a variety of songbird species such as a female Painted bunting (Passerina ciris), male Indigo bunting (Passerina cyanea), numerous Pine ' warblers (Dendroica pinus) and a Red-headed woodpecker (Melanerpes erythrcephalus) were observed. Brown creepers (Certhia familiaris) were also observed and heard in a number ' of locations where pine plantations were well advanced and healthy. Few . birds were observed in the driest and most depauperate habitats. Conversely, in the Carolina Bays thick growth provides exceptional cover and few species were actually observed in such habitat, though a variety of calls were heard. Deer (Odocoileus virginianus) feces and tracks were observed in numerous locations, especially on mesic and wetter sites where richer vegetation occurs. Beaver (Castor ' canadensis) and raccoon (Procyon lotor) signs were plentiful along Mercers Mill Creek, I outside the study area, but these species are also likely to occur in the wetter areas within 1 3-71 the study area. Mink (Mustela vison) and Bobcat (Fells rufus) are expected to occur here, and a brief glimpse of an animal darting across the road at some distance ahead near the southern part of the project suggested the presence of a mink. Species' habitat descriptions by Martof et al. (1980) suggest that as many as 11 frog and toad species, 7 lizard species, 9 salamander species, 15 snake species and 9 turtle species could or are likely to occur in habitats observed in the study area. Only a few representatives of either the amphibian or the reptilian classes were actually observed: an Eastern box turtle (Terrapena carolina), a Timber rattlesnake (Crotulus horridus) and a Carolina anole (Anolis caroliniensis). Pine woods treefrogs (Hyla femoralis) were heard in numerous locations. Records reported by Palmer and Braswell (1995) indicate that a number of reptiles have been observed in the vicinity within habitats occurring in the study area. These species included: Brown snakes (Storeria dekayi), Glossy crayfish snakes (Regina rigida rigida), Pine woods snakes (Rhadinaea flavilata), Timber rattlesnakes and Green anoles (Anolis carolinensis), Corn snakes (Elaphe guttata) [dry pocosins], Green anoles, Eastern slender glass lizard (Ophisaurus attenuatus), Eastern glass lizard (Ophisaurus ventralis), Ground skink (Scincella lateralis), Southeastern five-lined skink (Eumeces inexpectatus), Brown snakes, Corn snakes, Glossy crayfish snakes and Pine woods snakes, Mimic glass lizard (Ophisaurus mimicus), Northern scarlet snake (Cemophora coccinea copei), Corn snakes and Six-lined racerunner (Cnemidophorus sexlineatus), Southeastern five-lined skink, Ground skink, Carolina pigmy rattlesnake (Sistrurus miliarius miliarius), Eastern glass lizard, Diamondback terrapins (Malaclemys terrapin), Eastern chicken turtles (Dierochelys reticularia reticularia) and Yellow rat snake (Elaphe obsoleta quadrivittata). A flock of White ibises (Eudocimus albus) was observed from several locations, typically heading toward or away from the Intracoastal Waterway and the more aquatic areas of the 3-72 study area. Few other large birds were seen over much of the project area. Along the Intracoastal Waterway, Double-crested cormorants (Phalacrocorax auritas), Common crows (Corvus brachyrhynchos) and a variety of gulls were observed. Both Turkey ' vultures (Cathartes aura) and Black vultures (Coragyps atratus) were perched in trees on the north side of the channel and observed circling above the Intracoastal Waterway. Along ' Davis Canal, Brown pelicans (Pelecanus erythrohynchos), Horned grebes (Podiceps auritus), a Belted kingfisher (Megaceryle alcyon), Snowy egrets (Egretta thula) Black vultures and Turkey vultures were sighted. Table 3.7.1 presents a general ranking of existing habitats in the corridors and their relative suitability for supporting a variety of wildlife. Aquatic Communities ' Freshwater Streams: Freshwater habitat encompassed in the project area is limited to small depressions and a few streams. None of the perennial freshwater streams in the study area contain either free-floating or rooted vascular aquatic vegetation. However, several liverwort colonies (possibly Frullania sp.) were growing on tree bases at the edges of streams in the bottomland hardwoods community. Within the study area's relatively small streams only Least killifish (Heterandria formosa) and Mosquitofish (Gambusia afnis) were observed. In the upper reaches of nearby Mercers ' Mill Pond Creek, White perch (Morone americana) and the American eel (Anguilla rostrata) might be found. These sluggish waters may also support the Mud sunfish (Acantharchus ' pomotis) and Banded pygmy sunfish (Elassoma zonatum), both of which especially occur in dark-stained coastal streams. The absence of vegetation in the study area's streams means 1 3-73 TABLE 3.7.1 RELATIVE VALUE OF HABITAT TYPES IN THE STUDY AREA VEGETATION COMMUNITY NUTRIENT STATUS HABITAT VALUE Bottomland Hardwoods Richly varied High Streamhead Pocosin More fertile than peatland Moderate ocosins High Pocosin Extremely nutrient poor Poor to Moderate Pine Plantation Variable b site Variable Longleaf Pine Relatively fertile Moderate to High Pine Savanna Relatively rich and productive Moderate habitat to High Wet Pine Flatwoods Relatively fertile Moderate to High Pine/Scrub Oak Sandhill Relatively infertile Poor to Moderate Salt Marsh Highly roductive High Brackish Marsh Highly productive High Coastal Scrub Salt stress is dominant Poor characteristic the aquatic freshwater habitat is unlikely to support the Swamp darter (Etheostoma fusiforme), Taillight shiner (Notropis maculatus), or Tadpole madtom (Noturus gyrinus), all of which typically require rooted vascular vegetation. Saltwater Tidal Areas: Two communities occur in estuaries, areas flooded at least occasionally by saltwater: Salt Marsh and Brackish Marsh. These communities show strong zonation determined by the extent of flooding. They occur as more-or-less linear or concentric zones that always occur in the same order, when moving upslope from tidal creeks. Idealized examples of each community are described by Schafale and Weakley 3-74 I ' (1990). Compared to other areas on the East coast, the small tides of less than one meter ' (3 feet) in the project area limit estuarine development. Estuaries occur only adjacent to Davis Canal on Oak Island. The shores adjacent to the Intracoastal Waterway north of Oak Island are sandy and lack vegetation. Other than the salt marsh and brackish marsh habitats just discussed, a preponderance of ' aquatic habitat encompassed by the project area is marine habitat. The saline waters in the I' project area may support Atlantic croaker (Micropogonias undulatus), Black drum (Pogonias cromis), Gizzard shad (Dorosoma cepedianum), Rainwater killifish (Lucania parva), Snook (Centropomus undecimalis) and White perch. Spotted seatrout (Cynoscion nebulosus) i juveniles may be found in nearby estuaries, and Weakfish (Cynoscion regalis) use these areas as nursery grounds. In the coastal waters, prominent species would include Sand perch (Diplectrum formosum), I, Sand tilefish (Malacanthus plumieri), Bluefish (Pomatomus saltatrix), Spotted seatrout, ' Weakfish (Cynoscion regalis), Atlantic croaker, Striped and Bay Anchovies (Anchoa hepsetus, Anchoa mitchilli). Davis Canal and the lower reaches of Mercers Mill Pond Creek may also contain Sheepshead ' minnow (Cyprinodon variegatus) and Bayou killifish (Fundulus pulverus), as well as Blue crabs (Callinectes sapidus), Eastern oysters (Crassostrea virginica) and shrimp (Penaeus sp.). Anadromous species occurring in this part of North Carolina include the Alewife (Alosa pseudoharengus), American shad (Alosa sapidissima) and Gizzard shad. Within the project ' area, the only waters capable of supporting anadromous fish occur in Davis Canal and the 1 3-75 Intracoastal Waterway. Although the study area includes HQW zones and tributaries of larger systems, all freshwater streams within the study area appear too small and shallow to function as spawning grounds for anadromous species. 3.7.2 Water Resources Named water resources in the study area are documented in publications detailing the Lumber River Basin (NCDEM 1993 a,b) and are located in sub-basin 03-07-5.9. Though subject waters do not drain to the Lumber River, these publications cover a wide geographic area including several unconnected drainages in southeast North Carolina. Streams, Canals, and Impoundments Overall, much of the study area drainage pattern is ill-defined, constituting a complex of sand ridges separating numerous Carolina bays and linear depressions. Surface waters are typically dark-stained, highly acidic, and sluggish. Numerous isolated, intermittent pools occur, frequently in low spots along jeep trails where compaction has apparently interfered with drainage. Elsewhere, the deep sandy soil proves exceedingly porous and is quick to dry out even after heavy rainfall. Much of the study area appears and and depauperate, typical of what Ashe and Pinchot (1897) refer to as "Pine Barrens". All waters in the study area either arise in the project vicinity or are tidal; no impoundments occur on the mainland. Mercers Mill Creek, also referred to as Mercers Mill Pond (on the Lockwoods Folly USGS Quad Sheet) and Mill Creek (NCDEM 1993), arises south of NC 211 and runs southwest to its confluence with the Lockwoods Folly River. Two unnamed creeks drain the southern portion of the mainland study area and enter the Intracoastal Waterway. One of these creeks drains southeast through Ash Swamp. The other creek, having several forks, drains southwest. The northeastern extremity of the study area drains 3-76 easterly to Polly Gully Creek and Beaverdam Creek, both of which are outside the study I ' area. Due to the complex and ill-defined drainage pattern, determining the areas of particular stream basins is problematic. I ' Water Quality In the study area two types of water quality classification are pertinent: those that designate tidal-saline systems and those that designate the upland freshwater systems. I' The Atlantic Ocean's waters "contiguous to that portion of the Lumber River Basin extending from the Cape Fear River Basin to the North Carolina-South Carolina State line" are class SB (NCDEM 1993 a,b). The Intracoastal Waterway, "including all sloughs, sounds, inlets and connecting channels" is class SA. Hence, Davis Canal, crossed by Middleton Avenue on Oak Island, is classified as "SA". SA and SB refer to tidal salt waters. SA identifies waters classed for "shellfishing for market purposes", which are also classified as High Quality Waters (HOW). SB identifies waters for "primary recreation". Both SA and SB also encompass the "SC" classification for "aquatic life propagation and survival, fishing, wildlife and secondary recreation". IJ Mercers Mill Creek, the only separately classified stream near the project study area, carries two classifications. Below SR 1112 to the Lockwoods Folly River it is class SA. Above SR 1112, it is class C Sw HQW. "C" is the lowest use classification. It designates waters suitable for "aquatic life propagation and survival, fishing, wildlife, secondary recreation and agriculture". "Sw" refers to swamp waters, construed as waters with low velocity. "HQW" designates "High Quality Waters, which are waters that are rated as excellent based on biological and physical/chemical characteristics through division monitoring or special I studies" (NCDEM 1993). 1 3-77 The North Carolina Department of Environment, Health and Natural Resources, Division of Environmental Management has demarcated two regions of the study area as HQW watersheds. One area surrounds the headwaters of Mercers Mill Creek; the other area includes the headwaters of Ash Swamp. No BMAN sites are located within the watersheds this project could affect. The only sites within the 03-07-59 basin are somewhat distant. One is located on the Shallotte River near Shallotte (N10), almost 24 kilometers (15 miles) west. The other site (#11) is about 12.9 kilometers (8 miles) up the Lockwoods Folly River, near Supply. At both BMAN sites, ratings are "Good/Fair". Waters within the project study area appear to warrant at least this rating due to the stability of the surrounding natural communities and the streams' relative isolation from potentially degrading inputs. 3.7.3 Waters of the United States Atlantic Intracoastal Waterway The Atlantic Intracoastal Waterway (AIWW) separates Oak Island from the mainland. Davis Canal (also referred to as Montgomery Slough on the Lockwoods Folly USGS Quad Sheet) divides the west end of Oak Island into two parts: a narrow shoreward peninsula and a wider, higher section that parallels the Intracoastal Waterway. All waters surrounding the island are tidal. Wetlands Wetlands occurring in the project area are of two distinct types: tidal estuarine and palustrine (Cowardin et al. 1979). Occurring at the boundary between marine and terrestrial environments, tidal estuarine wetlands are easily identified as salt marsh or brackish marsh in this project's vicinity. Approximately 0.6 hectares (1.5 acres) of tidal marsh occur ad- 3-78 i ' jacent to Davis Canal at the project's south end. t The salt marsh community occurs adjacent to tidal creeks in areas flooded by salt water with each high tide. Salt marsh invariably qualifies as jurisdictional wetlands. The community contains only one vascular plant species, smooth cord grass (Spartina alterniflora), tolerant of salt levels exceeding 30 parts per thousand. Foliar cover averages 65 percent with soil or smooth cord grass litter between plants. The soil surface is invariably covered with a thin film of benthic microalgae and phytoplankton, both mostly diatoms. Considerable amounts j? of debris, especially plastic bottles and lumber, are present. The brackish marsh community invariably occurs upslope of the salt marsh in areas ' irregularly flooded, principally by unusually high spring or storm tides. The community is ' also composed of only one plant species, black needle rush (Juncus roemerianus), a species tolerant of salt levels ranging from 0.5 to 30 parts per thousand. Foliar cover averages 75 ' percent. Upslope, the Brackish Marsh grades abruptly into Coastal Scrub, a terrestrial community. The types of palustrine wetlands occurring include coastal bottomland hardwoods, pocosins, and a number of scattered pockets within pine plantations. Although nearly all of the pine r plantations were bedded before planting, certain areas retain wetland characteristics and ' functions. Pine savanna and wet pine flatwoods communities in the study area are drier than typical for these communities and do not qualify as jurisdictional wetlands. ' National Wetland Inventory maps, the Soil Survey of Brunswick County (Barnhill 1986), and field reviews were used to identify potential wetlands in the project study area. The ' presence of the following species was used also as an indicator of wetlands: loblollybay, I redbay, sweetbay, bamboo greenbrier, pond pine and swamp blackgum. Wetlands identified 1 3-79 in the study area are shown on Exhibit 3.7.1. Quality and function of wetlands differ and attempts to assign relative value to differing wetlands focus on a number of recognized functions (DEM 1994). The functions are water storage capacity, bank/shoreline stabilization, pollutant removal, wildlife habitat, aquatic life value, recreation and education (DEM 1994). Of these six functions, only two really pertain to most of the palustrine wetlands encompassed in the corridors: (1) wildlife habitat and (2) recreation and education. The lack of flowing water proximal to most of the wetland areas for most of the year precludes or diminishes their value for the other four functions. The density of vegetation in the Carolina Bays and linear depressions throughout the area decreases access for recreation and educational purposes. As wildlife habitat, these areas are probably excellent cover for a variety of species, but access by hunters is somewhat limited. However, all of the six functions pertain to the tidal marsh areas. The tidal wetlands support a wealth of organisms, and their importance as nursery grounds for marine fish and shellfish species are widely recognized. They buffer the adjacent land from the effects of tidal fluctuation and through their retention ability effectively remove pollutants from the water column. 3.7.4 Rare and Protected Species Under federal law, any federal action which is likely to result in a negative impact to federally protected plants and animals is subject to review by the US Fish and Wildlife Service (USFWS) under one or more provisions of the Endangered Species Act (ESA) of 1973. In the case of state-funded action, where federal wetland permits are likely to be required, for example, the USFWS can require consultation to insure that the proposed 3-80 11 action does not jeopardize any endangered, threatened or protected species. Even in the ' absence of federal actions, the USFWS has the power, through provisions of Section 9 of the ESA, to exercise jurisdiction on behalf of a protected plant or animal. The USFWS and other wildlife resource agencies also exercise jurisdiction in this resource area in accordance ' with the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 USC 661 et seq). North Carolina laws are also designed to protect certain plants and animals where statewide populations are in decline. Federally-Protected Species The US Fish and Wildlife Service's Raleigh Field Office has identified the species listed in Table 3.7.2 as known to occur, currently or historically, in Brunswick County. Records in the NC Natural Heritage Program (NHP) office have been reviewed, and evidence has been gathered during several extended field expeditions. Based on these efforts and published sources of information (e.g., USFWS 1992), specific descriptions of each species, its habitat ' needs, and the status of potential habitat in the project area follow. The Eastern cougar (Fells concolor cougar) is a large (up to 9 feet), tawny-colored feline. The eastern cougar "needs a large wild area with an adequate food supply for survival. It feeds mainly on deer, but its diet may also include small mammals, wild turkeys, and ' occasionally domestic livestock" (Parker and Dixon 1980). Persistent hunting of the cougar and reduction of deer herds during the early 1900s effectively eliminated the animal, but growth of white-tail deer populations in the past 40 years has perhaps allowed cougars to survive (Parker and Dixon 1980). Parker and Dixon say biologists are unsure where in the historical range, from eastern Canada south into Tennessee and the Carolinas, the eastern ' cougar occurs in the United States; however, "significant reports of sightings persist in North I and South Carolina and Tennessee". 1 3-82 TABLE 3.7.2 FEDERALLY LISTED ENDANGERED AND THREATENED SPECIES FOR BRUNSWICK COUNTY SPECIES STATUS'' HABITAT Eastern cougar (Felis concolor couguar) E Large wild area with sufficient prey Manatee (Trichechus manatus) E Sluggish rivers and shallow bays Red-cockaded woodpecker (Picoides borealis) E Pines> 60 yr old for nesting, > 30 foraging Peregrin falcon (Falco peregrinus) E During mitgration Bald eagle (Haliaeetus leucocephalus) T Large open-crowned perch trees Wood stork (Mycteria americana) E Cypress swamps and marshes Piping plover (Charadrius melodus) T Bare, dry sandy areas on beaches and inland Leatherback sea turtle (Dermochelys coriacea) E Marine, open ocean Kemp's ridley sea turtle (Lepidochelys kempi) E Marine and shallow coastal waters Green sea turtle (Chelonia mydas) T Marine and shallow coastal waters Loggerhead sea turtle (Caretta caretta) T Marine, open ocean American alligator (Alligator mississippiensis) T(S/A) Coastal marshes, rivers, swamps Shortnose sturgeon (Acipenser brevirostrum) E Lower sections of rivers and coastal waters Rough-leaved loosestrife (Lysimachia asperulafolia) E Wet pine flatwoods and boggy savannas Cooley's meadowrue (Thalictrum cooleyi) E Pine savannas with longleaf or pond pine Seabeach amaranth (Amaranthus pumilus) T Fore dunes of barrier islands -c= enuangerea; r = mreatenea; bA=status aue to similarity or appearance to another species. In its current state the entire study area north of the Intracoastal Waterway could only marginally serve as habitat for the eastern cougar. The project study area is somewhat connected with other large and relatively unoccupied areas, though habitat corridors typically cross roadways and include outlying areas of rural residences and farmlands. Frequent intrusions into the area by members of hunting clubs and recreational vehicle users lessen the "wild" character, therefore the suitability of the area as habitat, hence the probability that 3-83 i I Ll 1 n V I cougars will inhabit the area. Yet, a recent mountain lion attack along a suburban California jogging trail raises awareness that these opportunistic large cats may be adapting to more fragmented habitats and returning to abandoned territories. Sightings in the mountains of Western Maryland were apparently documented recently with a short videotape, though local wildlife experts differed in their interpretation and explanation of its veracity. Manatees (Trichechus manatus) are large aquatic mammals that graze on aquatic vegetation and are often referred to as "sea cows." Slow moving, yet somewhat graceful swimmers, manatees are gentle and frequently encountered by humans. According to Parker and Dixon (1980) manatees "inhabit sluggish rivers, sheltered marine bays and shallow estuaries" and require access to fresh water and channels at least 2.1 meters (7 feet) deep. While the manatee was once subject to commercial hunting for its meat, oil, and leather, the greatest current threat derives from collisions with boats and barges. Because the waters occupied by the manatee are heavily used by humans, regulating commercial and recreational boating traffic is crucial to manatee survival. The manatee's critical habitat identified by the USFWS occurs mainly in Florida, and only in summer does the manatee move as far north as North Carolina's southern coast. Manatees have been sighted in North Carolina waters 49 times since 1977 (NHP records). In August 1976, one was observed near CP&L's power plant at Southport (NHP record), but the most recent sighting was in the Trent and Neuse Rivers during October 1994. The Peregrin falcon (Falco peregrinus) is a medium-sized migratory raptor having long pointed wings and a long tail. The Attic peregrin is paler and smaller than the American peregrin (Falco peregrinus anatum). It summers (and nests) in the treeless tundra of Arctic North America and migrates to Argentina (Parker and Dixon 1980). The journey takes the 3-84 bird through the eastern, central and Gulf Coast regions of the United States. Like the American peregrin, the arctic bird was historically affected by chlorinated pesticides in its food and environment. Falcon reintroduction efforts have been moderately successful and the ban on harmful pesticides has decreased the threat to the population's reproductive system. Because peregrin falcons chiefly migrate along the coast and use "open country, especially along rivers, also near lakes" the project study area could be a stopover point for the birds. However, Arctic falcons are not expected to use this area any appreciable amount of time. The Wood stork (Mycteria americana)--a large white and black-feathered bird, 40-44 inches tall with a 66 inch wingspan--is found on or near the coast, breeding chiefly in cypress swamps and also in mangroves (Bull and Farrand 1977). Often seen perching motionless on bare branches or stalking slowly through marshes in search of food, individuals are sometimes seen circling high in the air on rising thermal currents.. They typically nest in enormous colonies, laying 2-3 eggs on huge stick platforms in trees. Numbers have declined drastically as a result of land development, lumbering, and draining of feeding grounds. No large cypress stands occur in the project study area. Small pockets of cypress and scattered individual trees occur, but no "cypress swamps" are extant. Red-cockaded woodpeckers (RCW) (Picoides borealis) are mostly black and white birds with barred backs and wings and a large white cheek patch. Compared to other wood- pecker's, RCWs are mid-sized (about 8 inches long) and superficially resemble several other species, such as Hairy (Picoides villosus) and Downy (Picoides pubescens) woodpeckers. The RCW males' small red spot behind the eye inspired the name "cockaded"..Otherwise, 3-85 i ' these birds are nondescript in appearance, and their habits tend to make them less conspicuous than other woodpeckers. The species' most notable characteristic is its dependency on very old live pine trees, which the birds excavate in a unique manner, so the ' trees exude sap around cavity holes. RCWs establish colonies that include a number of adult ' and nearly mature birds besides the primary breeding pair. i ' RCW nesting colonies usually occur in mature pine (preferably Longleaf) stands with open ' understories, contiguous with areas where pines dominate the surrounding forest to provide suitable foraging habitat. "Suitable habitat consists of pine or pine-hardwood (50 percent ' or more pine) stands 30 years of age or older" (Henry 1989). Although some colonies may be found in pine stands where midstory hardwood encroachment has occurred, this situation ' is relatively rare. Periodic burning regimes typically are needed to maintain suitable habitat. I, An abandoned RCW cavity site exists just south of NC 211, approximately 3 kilometers (1.9 i, miles) west of Midway (NHP records). The project area is dominated by pine stands, most I, being plantations of slash and loblolly established after the natural longleaf and pond pine timber was removed approximately thirty years ago. Where natural stands remain, age class ' and average stand diameters must be considered to determine the amount of potential habitat. These data for the three corridors are presented in Section 4.7.1. Bald eagles (Haliaeetus leucocephalus) are large, dark brown soaring birds with wingspans reaching six feet. They typically require large bodies of water with abundant fish populations and roosting habitat in proximity to this food supply (Luukkonen et al. 1989). According to Luukkonen et al. (1989), "good perch trees are the most important ' characteristics of forest stands for eagles". Eagles appear to prefer large, open-crowned I perch trees, and eagle roost habitat requires large trees with open structures at low densities. 1 3-86 Studies have shown that the critical flush distances for eagles are 137.2 meters for motorized boats, 220 meters for walking approaches. "Other researchers have reported that eagles were not significantly disturbed by normally occurring auditory activities such as vehicular traffic, human vocalization, or logging practices . . . . " (Luukkonen et al. 1989). The Intracoastal Waterway, Lockwoods Folly River and Atlantic Ocean are all proximal to the project study area. Large, isolated, open-crowned pines occur throughout the area. The area therefore does provide suitable roosting habitat. NHP records do not indicate any bald eagle activity in this vicinity and no individuals were observed during field examinations. The Piping plover (Charadrius meiodus) is a sparrow-sized, dry sand-colored bird. It is mainly a northern shore species that winters as far north as the Carolinas and south to the West Indies and Mexico (Bull and Farrand 1977). Found in "bare, dry, sandy areas, both inland and on the coast", it is difficult to see on the beach. Bull and Farrand comment that coastal resort development has destroyed many former nesting sites. Extensive "bare, dry, sandy areas" exist in the study area, especially in the spoil deposits along the Intracoastal Waterway. Hundreds of acres of Kureb soil where sparse cover occurs could also provide refuge for wintering birds. Any possible occupied sites on the beach would not be affected by the proposed project. The Shortnose sturgeon (Acipenser brevirostrum) is a fin fish usually less than 3 feet long, colored dark above and light below, and having five rows of sharply pointed plates along either side for protection. It inhabits lower sections of larger rivers and coastal waters along the Atlantic seaboard from Canada to central Georgia. According to Parker and Dixon (1980) "it may spend most of the year in brackish or salt water and move into fresh water 3-87 only to spawn". Feeding on invertebrates and some plant material, the shortnose sturgeon is endangered because of pollution, over-fishing and construction of dams on rivers it uses _, for spawning. 1 Natural Heritage Program records note that 7 shormose sturgeon individuals were found in the Cape Fear River during a 1990-1992 capture-release study. This is the only identified occurrence in North Carolina. No habitat occurs in the study area. Four marine turtle species have been noted in Brunswick County: Leatherback sea turtle i, (Dermochelys coriacea), Kemp's ridley sea turtle (Lepidochelys kempi), Green Sea Turtle (Chelonia mydas), Loggerhead sea turtle (Caretta caretta). All four species are large, migratory ocean-dwelling turtles. The Leatherback, not considered common along the NC coast, is an open ocean species sometimes moving into "shallow bays, estuaries and even ' river mouths". Kemp's ridley prefers shallow coastal waters and was "formerly common in summer around Carteret County and known in Dare County". The Green sea turtle, which "prefers fairly shallow waters inside reefs, bays and inlets," is now common only in the Caribbean, though it "was once a common visitor along parts of the North and South Carolina coasts". The Loggerhead "frequents open ocean waters as well as bays, lagoons, salt marshes, creeks, ship channels and the mouths of large rivers". Of the four turtle species, Kemp's ridley and the Loggerhead have both been observed on Long Beach, therefore outside the project limits. These two species may find the Intracoastal Waterway and Davis Canal marginally suitable habitat. They could conceivably enter and traverse either water body, but they would not typically be found on the mainland portion of the study area. 1 3-88 The American alligator (Alligator mississippiensis) is a large reptile 1.8 to 3.7 meters (6 to12 feet) long with a rough hide and rounded broad snout. Its status in North Carolina has O improved, having been changed from endangered (Parker and Dixon 1980) to threatened. It is found in coastal marshes, swamps, river systems, canals and lakes from Dare County, NC, to Corpus Christie, Texas. Its varied diet includes mammals, herptiles, fish and birds. Although marked increases in numbers have followed the alligator's protection from hunting and protection of its wetland habitat, its similarity in appearance to the American crocodile keeps it listed as T/SA. Alligators have been observed in Davis Canal and at Big Cypress Bay, west of the study area (NHP records). The mainland lacks sufficiently deep water bodies and streams to harbor resident alligators. However, individuals could traverse the impact area in search of suitable resident habitat. Roughleaf loosestrife (Lysimacia asperulifolia) is a distinctive rhizomatous herb, reaching heights of 30 to 50 centimeters (12 to 20 inches). Upper stems and leaves may be stipitate glandular. Leaves are opposite or whorled, lanceolate and sessile. Flowers are yellow-colored, borne in racemes, and present in May and June. Roughleaf loosestrife generally occurs in the wet pine flatwoods and pine savanna communities. The wet pine flatwoods community occurs in numerous scattered locations throughout the study area, especially south of NC 211. Therefore, potential habitat exists for roughleaf loosestrife. Roughleaf loosestrife also occurs in the pine savanna community on wet mineral soils with seasonally-high water tables. Potential habitat for roughleaf loosestrife occurs in the pine savannas located in numerous scattered locations in the project area south of NC 211. 3-89 ' In addition, roughleaf loosestrife could possibly persist in areas currently in pine plantations, ' since an unusually species-rich understory was noted in several places, and since some of this plantation was probably pine savanna prior to conversion. ' Cooley's meadowrue (Thalictrum cooleyi) is a slender herb, reaching heights of 40 to 70 centimeters (16 to 28 inches). Leaves are alternate and ternately compound or ternately i ' decompound. Individual leaflets are revolute, either linear, lanceolate, or oblanceolate and ' they are either not lobed or slightly three-lobed on basal leaves. The white flowers are borne in June. I, Cooley's meadowrue occurs largely in pine savannas, characterized by a sparse canopy of ' longleaf pine or occasionally pond pine growing on wet mineral soil. Pine savanna occurs in numerous scattered locations throughout the study area. Survival of the species is greatly enhanced when these sites burn frequently with low-intensity fire. Seabeach amaranth (Amaranthus pumilus) is a trailing herb with thick fleshy alternate leaves that are ovate and slightly emarginate, and the petioles are winged. Flowers occur I from June to October in axillary fascicles. ' Seabeach amaranth occurs in upper beach and dune grass communities on the oceanside of barrier islands. In the upper beach community, it normally grows above mean high tide in sand soil which is continuously blown and reshaped by ocean winds. Salt-spray winds and blowing sands predominate. The soil is invariably composed of excessively well-drained sands, shells and shell fragments. Associate vegetation is sparse, mostly sea oats (Uniola paniculata), marsh elder (Iva imbricata), morning glory (Ipomoea) and pennywort ' (Hydrocotyle spp.). The dune grass community, located on the landward side of the upper 1 3-90 beach community, also occurs on sand soils. Sea oats dominates this community, but smaller numbers of bear-grass (Yucca filamentosa), croton (Croton punctatus), sandspur and other species occur also. The upper beach and dune grass communities are completely lacking from the study area, since the project does not cross Beach Drive to the active dunes on Oak Island. Thus, no typical habitat occurs for seabeach amaranth, and it is extremely unlikely that seabeach amaranth occurs in the project area. State-Protected Species The North Carolina Natural Heritage Program elements list for Brunswick County includes 190 species toward which some level of attention is directed because of species' rarity or significance as part of the ecosystems where they occur. Table 3.7.3 lists only species that the North Carolina Natural Heritage Program classifies as endangered or threatened. Many of the species appearing in Table 3.7.3 have been discussed above because they are federally protected species. Federal Species of Concern Eight animal species and twenty plant species are currently listed as federal species of concern in Brunswick County, as shown in Table 3.7.4. The rare skipper (Problema bulenta) and two of the plant species, savanna campylopus and awned meadowbeauty, have not been observed in Brunswick County in 20 years. The previously known location near Southport for savanna campylopus has been destroyed and the species extirpated from that site (Weakley 1985). "Dune blue curls," is apparently a nomen nudum--a name not validly published according to the rules of nomenclature. Typical habitat for all 28 species and the occurrence or lack of this habitat in the study area is indicated in Table 3.7.4. Suitable 3-91 1 1 1 i I TABLE 3.7.3 STATE PROTECTED SPECIES LISTED (NATURAL HERITAGE PROGRAM 1995) SPECIES STATUS' HABITAT Eastern Cougar (Fells concolor couguar) E Large wild area with sufficient prey Florida manatee (Trichechus manams) E Sluggish rivers and shallow bays Dismal swamp shrew (Sorex longirostris fisheri) E Mesic succession: cane, 10-15 yr. old forest Red-cocdaded woodpecker (Picoides borealis) E Pines >60 yr. old for nesting, >30 foraging Arctic peregrin falcon (Falco peregrinus tundrius) T During mitgration only Bald Eagle (haliaeetus leucocephalus) E Large open-crowned perch trees, near waterbodies Wood stork (Mycteria americana) E Cypress swamps and marshes Piping plover (Charadrius melodus) T Bare, dry sandy areas on beaches and inland Leatherback sea turtle (Dermochelys coriacea) E Marine, open ocean Kemp's ridley sea turtle (Lepiodochelys kempi) T Marine and shallow coastal waters Green sea turtle (Chelonia mydas) T Marine and shallow coastal waters Loggerhead turtle (Caretta caretta) T Marine, open ocean American alligator (Alligator mississippiensis) T(S/A) Coastal marshes, rivers, and swamps Shormose sturgeon (Acipenser brevirostrum) E Lower sections of large rivers and coastal waters Carolina pygmy sunfish (Elassoma boehlkei) T Quiet and clear or dark stained sloughs and streams Eastern woodrat (Neotoma floridana floridana) T Deciduous lowland forest, swamps, and marshes Gull-billed tern (Strena nilotica) T Sparsely vegetated estuarine islands Waccamaw spike (Elliptio waccamawensis) T Lake Waccamaw and adjacent river Magnificent rams-horn (Planorbella magnifica) E Two old mill ponds elsewhere in Brunswick County Greenfield ramshorn snail (Helisoma eucosmium) PE Nothing known, except it's found in Elodea mats Seabeach amaranth (Amaranthus pumilus) PT Fore dunes of barrier islands 3-92 TABLE 3.7.3 - CONTINUED STATE PROTECTED SPECIES LISTED (NATURAL HERITAGE PROGRAM 1995) SPECIES STATUS' HABITAT Savannah indigo bush (Amorpha georgiana) T Coastal fringe sandhill and associated habitats Harpers fimbry (Fimbristylis perpusilla) T Sand or mud bars in and adjacent streams, etc. Carolina grasswort (Lilaeopsis carolinensis) T Pine savannas Golden crest (Lophiola aurea) E Pine savannas with sparse longleaf canopy Rough-leaved loosestrife (Lysimachia asperulaefolia) E Wet Pine Flatwoods and Boggy savannas Pinebarren smokegrass (Muhlenbergia torreyana) E Sandy, dry areas Loose watermilfoil (Myriophyllum laxum) T Small depression ponds Carolina grass-of-parnassus (Parnassium caroliniana) E Wet savannas Pineland plantain (Plantago sparsiflora) E Wet savannas Yellow fringeless orchid (Platanthera integra) T Pine savannas Snowy orchid (Platanthera nivea) T Pine savannas Awned meadowbeauty (Rhexia aristosa)' T Cypress and pine savannas, clay-based Carolina bays Sun-facing coneflower (Rudbeckia heliopsidis) E Moist pine flatwoods and woodland borders Plymouth gentian (Sabatia kennedyana) T(S/A) Sand or mud bars in and adjacent streams, etc. Carolina goldenrod (Solidago pulchra) E Savannas Spring-flowering goldenrod (Solidago verna) E Pine savannas/barrens, pocosin ecotones, near water Wireleaf dropseed (Sporobolus teretifolius) T Wet savannas Cooley's meadowrue (Thalictrum cooleyi) E Pine savannas with longleaf or pond pine Dwarf bladderwort (Utricularia olivacea) T Small depression ponds *E= endangered; T= threatened; P= proposed; SA=status due to similarity of appearance to another species. 3-93 ' 1 I' I' I, 1 I' I' i TABLE 3.7.4 TYPICAL HABITAT AND HABITAT OCCURRENCE OF FEDERAL SPECIES OF CONCERN IN BRUNSWICK COUNTY Agrotis buchholzi Pyxie moth Pine barrens Yes Yes Yes w/Pyxidanthera barbalata occurring Aimophila aestivalis Bachman's sparrow Open pine woods Yes Yes Yes Ammodramus henslowii Henslow's sparrow Moist or dry grasslands No No No Elassoma boehlkei Carolina pygmy Clear, dark-stained Marg. No Marg. sunfish streams Heterodon simus Southern hognose Well drained sandy Yes Yes Yes snake pine-oak woodland Noturus sp.2 Broadtail madtom Still, bottomland waters Marg. No Marg. Planorbella magniftcum Magnificent rams- Mill ponds with plants No No No horn snail Rana capito capito Carolina gopher frog Dry Oak-Pine and Pine Yes Yes Yes savannas Problema bulenta Rare skipper' Brackish riverine No No No marshes Triodopsis soelneri Cape Fear three Cypress swamps No No No tooth Amorpha georgiana Savanna leadplant Coastal Fringe Sandhill, Yes Yes Yes confusa Pine savanna Balduiana atropurpurea Honeycomb head Pine savanna Yes Yes Yes Campylopus carolinae Savanna campylopus Pine savanna Yes Yes Yes Carex chapmanii Chapman's sedge Pine savanna Yes Yes Yes Dionaea muscipula Venus flytrap Pine savanna, Wet Pine Yes Yes Yes Flatwoods Mesic Pine Flatwoods, No No No Sandhill Seep Fimbristylis perpusilla Harper's fringe rush Pine savanna Yes Yes Yes Litsea aestivalis Pondspice Small Depression Pond, No No No Small Depression Pocosin 3-94 TABLE 3.7.4 - CONTINUED TYPICAL HABITAT AND HABITAT OCCURRENCE OF SPECIES CONSIDERED FOR FEDERAL LISTING AS ENDANAGED OR THREATENED IN BRUNSWICK COUNTY SPECIES COMMON NAME HABITAT HABITAT IN ALTERNATIVE A S C Macbridea caroliniana Carolina bogmint Pine savanna Yes Yes Yes Myriphyllum laxum Loose watermilfoil Small Depression Pond, Natural Lake Shoreline No No No Oxypolisternata Savanna cowbane Pine savanna Yes Yes Yes Parnassia caroliniana Carolina grass-of- Pine savanna Yes Yes Yes parnassus Sandhill seep No No No Plantago sparsiflora Pineland plantain Pine savanna Yes Yes Yes Rhexia aristosa Awned Pine savanna Yes Yes Yes meadowbeauty Cypress savanna No No No Rhynochospora thornei Thorne's beaked- rush Pine savanna Yes Yes Yes Rudbeckia heliopsidis Sun-facing coneflower Roadsides and Right-of- Way Yes Yes Yes Solidago pulchra Carolina goldenrod Pine savanna Yes Yes Yes Solidago verna Spring-flowering Pine savanna Yes Yes Yes goldenrod Sandhill seep No No No Sporobolus teretifolius Wireleaf dropseed Pine savanna Yes Yes Yes Tofieldia glabra Carolina asphodel Pine savanna, Wet Pine Flatwoods Yes Yes Yes Sandhill seep No No No Trichostema species 1 Dune blue curls Coastal Fringe Sandhill Yes Yes Yes Coastal Shrub Yes Yes Yes Salt Marsh Yes Yes Yes 3-95 !_l habitats for the Carolina crawfish frog, Bachman's sparrow, and the Pyxie moth exist. Carolina pygmy sunfish habitat is marginal at best. Potential habitat for the 18 plant species is typically associated with either wet pine flatwoods or pine savannas. None of these species were observed during field investigation, except for Venus flytrap which was found ' in several places. No typical habitat exists for pondspice and loose watermilfoil--plants of small depression ponds. 3.7.5 Natural Areas I' The project study area traverses the Longleaf Rim unit of "The Boiling Spring Lakes Wetland Complex". This Longleaf Rim unit was studied by the Nature Conservancy's North Carolina Field Office as a possible preservation area, but all land encompassed remains in ' private ownership, thus without protected status. No defined natural area preserve exists. I ' The Longleaf Rim unit "is characterized by many large and small Carolina bays ' superimposed on broad, low, non-alluvial flats and a relict dune and swale system" (LeBlond 1994). Much of the area supports woody pocosin vegetation, and various subtypes of the longleaf community occur intermixed across the landscape. However, considerable longleaf acreage was converted to slash pine and loblolly pine plantations approximately 30 years ago, with widely varying results. Tree growth of these introduced species has generally been ' slow. In 1993, wildfire raged across the Longleaf Rim unit, enhancing habitat for native fire- dependent plant species that had suffered because of historic fire suppression. Many plantation trees were killed and, in places, pocosin thickets were substantially reduced. Pond ' pine and longleaf typically survived, and regeneration can be observed in many areas. 1 3-96 4.0 ENVIRONMENTAL CONSEQUENCES i This section of the report presents a discussion on the probable effects, both positive and ¦ negative, for Alternatives A, B, and C. Potential mitigation for these impacts are also ¦ discussed. 4.1 LAND USE IMPACTS ' This section is based on the report "Secondary and Cumulative Impacts Technical Memorandum" which is incorporated by reference into this Environmental Assessment. The analysis focuses on two geographic regions: the project study area and the Induced Impact Area. The project study area is defined as the Middleton Avenue area of the island and mainland directly impacted by the proposed second bridge and two-lane collector roadway Alternatives A, B, and C. The Induced Impact Area is defined as Oak Island which includes the three municipalities of Caswell Beach, Long Beach, and Yaupon Beach and the proximate mainland. The mainland area is basically a Y-shaped area which includes the NC 133 M Corridor (Long Beach Road), extending to the junction of NC 133 and NC 87 and includes the entrances of the CP&L Nuclear Power Plant and the Sunny Point Military Ocean Terminal, SR 1500 (Midway Road) to the Brunswick County Government Complex and the large tracts of land bordering the Intracoastal Waterway bounded by NC 211 to the north and by SR 1112 (Sunset Harbor Road) to the west. The induced impact area is shown on Exhibit 4.1.1. it The socioeconomic impacts of corridor Alternatives A, B, and C will be similar over the 20- year planning period between 2000 and 2020; therefore, socioeconomic impacts are identified only in terms of the Build and No-Build alternatives. This assumption is supported by the ' fact that the traffic projections for Alternatives A, B, and C are identical. 1 4-1 4.1.1 Development Trends and Land Use Plans Impacted The North Carolina Coastal Resources Commission requires each coastal town and county to prepare a Coastal Area Management Act (CAMA) land use plan and update its plan every five years. The most recent certified plans for each of the four jurisdictions within the Induced Impact Area are as follows: Town of Caswell Beach. NC 1990 Land Use Plan, Town of Lona Beach. NC 1993 Land Use Plan, Town of Yaupon Beach. NC 1990 Land Use Plan, and Brunswick County Land Use Plan 1993 Update. The extensive development plans of the St. James Plantation should also be noted because the proposed corridor Alternatives B and C cross currently undeveloped areas of this privately planned resort community. St. James Plantation is located on the mainland between NC 211 and the Intracoastal Waterway. This private development company owns 2,072.47 hectares (5,119 acres) of which 688.30 hectares (1,700 acres) has been developed as a golf course, residential community. The private developer plans to build St. James Plantation in three phases and anticipates project completion by 2008. According to a St. James official, the Second Bridge Alternatives will not influence the St. James Plantation build-out by the year 2008. However, the proposed project could facilitate utility extension, affect the layout of future Phase III development and influence the design of the community's private roadway system. 4.1.2 Consistency with Comprehensive Development Plans The CAMA Land Use Plans are used by local, state, and federal officials for the issuance of major and minor CAMA development permits and for Consistency Review of all federal and state projects within the community. Three aspects of the CAMA Land Use Plans are considered pertinent for determining the consistency of the proposed federal or state project: 4-2 I I I ?r t I E I I I r 1 ' Areas of Environmental Concern, Land Classification, and Policy Statements regarding the proposed Second Bridge to Oak Island. ?i Alternatives A, B, and C lie within several types of Areas of Environmental Concern (AECs) including Estuarine Waters, Estuarine Shorelines, Public Trust Areas, and Coastal Wetlands. Any major land disturbing activity within Areas of Environmental Concern would require a CAMA Major Development Permit. I? The project study area lies within the jurisdiction of the Town of Long Beach and Brunswick County. The Town of Long Beach CAMA Land Use Plan classifies land within the project study area as Developed Residential on the island, as Conservation for the shoreline bordering the Intracoastal Waterway and as Urban Transition for the Long Beach.ETJ on the mainland. The Brunswick County CAMA Land Use Plan has jurisdiction over the remaining mainland portion within the project study area. Land bordering Alternatives B and C is classified as Urban Transition. Land bordering Alternative A is classified as Limited Transition and as Rural. A Carolina Bay which is part of the Boiling Springs Lake Wetland Complex is located between Alternatives A and B and this area is classified as Conservation. rl Alternatives A, B, and C would be consistent with the Developed Residential, Urban Transition, Limited Transition, and Rural classifications. The land designated as r? Conservation should be not developed at all, or if developed, done so in an extremely limited and sensitive fashion in order to protect the wetlands and natural habitats. Alternatives A, B, and C avoid impacts to the Conservation area. The Towns of Caswell Beach, Long Beach, and Yaupon Beach have CAMA Land Use policy statements endorsing the construction of a Second Bridge to Oak Island as cited below: 1 4-4 Caswell Beach: 11. (b) Transportation: "The town of Caswell Beach supports the construction of a second bridge to provide access to Oak Island. " Long Beach: Transportation (a), page IV-16: "Long Beach will meet the increasing need to move people and goods from place to place conveniently, safely, quickly, and efficiently, particularly during the summer months when traffic congestion is highest by: - Mounting a concentrated campaign with Caswell and Yaupon Beaches to acquire a second bridge for Oak Island at Middleton Avenue. " Yaunon Beach: 11. (e) Transportation: "Yaupon Beach supports the construction of second bridge in Long Beach, linking Oak Island and the mainland, which would lessen traffic congestion, and possibly increase commercial development in the Town. " Brunswick County has consistently supported the need for an additional bridge serving the southwest end of Oak Island as stated in the County's 1993 Land Use Plan Update. The Brunswick County Commissioners 1996 TIP Request List prioritized the Second Bridge to Oak Island as the most important transportation need in the County. Improvements to SR 1500 from NC 211 to US 17 was listed as the number three priority on the TIP list, which recognized a need to accommodate the increased traffic flow to a second bridge and to further improve evacuation routes. 4.1.3 Secondary Land Use Impacts The National Environmental Policy Act (NEPA) defines secondary or indirect effects as follows: Indirect effects, which are caused by the action and are later in time or farther removed in distance, but are reasonably foreseeable. Indirect effects may include growth inducing effects and other effects related to induced changes in the pattern of land use, population density or growth rate, and related effects on air and water and other natural systems, including ecosystems. (40 CFR 1508.8) 4-5 The following secondary impacts affecting land use have been identified: • Change in Development Rate: The Induced Impact Area and Brunswick County are projected to grow 35.9 percent from 1994 to 2020. The Induced Impact Area year- round population is projected to grow from 8,880 residents in 1994 to 13,933 residents in 2020, an additional 5,053 new year-round residents over the twenty-five year period. By assuming a 4:1 ratio of seasonal population to year-round population, it is estimated that the 2020 peak seasonal population will be 55,732 overnight and day visitors for a total summer peak population of 69,665. These projected growth patterns are nearly twice the projected growth rate for the State of _04 North Carolina. The proposed second bridge is not anticipated to attract a greater proportion of new residents to the area, but will impact to a minor extent where the growth will occur. The southwest end of Long Beach and the bridge corridor on the mainland could attract more development as the result of the second bridge. Change in Character: The character of the Induced Impact Area will not change as • the result of the proposed second bridge. Oak Island will remain a low-rise, family- retirement beach community with predominately single-family houses and limited commercial services. All three beach towns reflected this goal in their most recent CAMA land use plans and these policies are enforced by the town's land use regulations. In particular, the Yaupon and Long Beach building height referendum requirement effectively eliminates high-rise development. The mainland between NC 211 and the Intracoastal Waterway will develop as golf-retirement complexes and residential subdivisions, with or without the bridge. Some observers may regard the development of these rural tracts as directly related to the construction of the bridge. However, such development is a predictable change which many local officials anticipate would happen with or without the second bridge. The major impact of the new bridge corridor will be the orientation of these development complexes. With 4-6 a new roadway, the main entrance to the complexes would most likely occur along this route. Without the new bridge, the complexes would have entrances along their current NC 211 or SR 1112 frontage. SR 1500 would remain predominantly rural homesteads even with the higher traffic volumes attributed to the bridge traffic. The character of the NC 133/ NC 87 and SR 1112 corridors will likely not change as a result of Alternatives A, B, or C. • Impact on Neighborhoods: There would be development pressure to rezone some portions of the Middleton Avenue residential street to allow commercial use. 1G • Impact on Public Image: The main "gateway' or entrance to a community greatly influences the public perception of that town. Many now regard the Long Beach Road Corridor as a cluttered, poorly designed, and unattractive commercial strip which provides a negative "entrance" to Oak Island. The new bridge corridor is viewed by many as a way to provide an aesthetically pleasing entrance to Oak Island. The Town of Long Beach anticipates having zoning authority over much of the bridge corridor area, especially by the year 2020. Town officials want to plan for upscale, quality growth and to control the design of the new main entrance to their community thus providing Long Beach and the other Oak Island towns with a better image. • Impact on the Beach: More day visitors will have better access to the Town of Long Beach because of the proposed second bridge to Oak Island. According to the Town of Long Beach CAMA Plan, this town is committed to providing sufficient public access walkways, restroom facilities, and parking in order to accommodate the increase in day visitors. 4.1.4 Cumulative Impacts The National Environmental Policy Act (NEPA) defines cumulative impact as follows: 4-7 "Cumulative impact" is the impact on the environment which results from the incremental impact of the action when added to other past, present, and reasonably foreseeable future actions regardless of what agency (Federal or non-Federal) or person undertakes such other actions. Cumulative impacts can result from individually minor but collectively significant actions taking place over a period of time. (40 CFR 1508.7) Past actions within the Induced Impact Area include the development of existing residential and commercial structures, the provision of a centralized sewer system in Yaupon Beach, i the operations of the CP&L nuclear power plant and the Sunny Point Military Ocean Terminal on the mainland, and the operation of the US Coast Guard station and the NC ' Baptist Assembly on Oak Island. These developments have occurred in accordance with the ?J local jurisdictions CAMA Land Use Plans. Foreseeable actions on Oak Island include continued residential and limited commercial development in accordance with the CAMA Land Use Plans and the possible provision of a centralized sewer system in Long Beach. Other possible future actions on the mainland include the possible closing of the CP&L nuclear power plant after 2015, the construction of the two-lane connector from NC 211-133 to NC 87 (TIP No. R-3324), improvements to SR 1500, further development of the Southport-Oak Island Committee of 100 Industrial Park, the provision of a centralized sewer system by the Southeast Brunswick Sanitary Sewer District and plans by St. James Plantation and surrounding property owners to build additional resort and residential communities. It is anticipated that the Sunny Point Military Ocean Terminal, the US Coast Guard Oak Island Station, and the NC Baptist Assembly will continue operations throughout the planning period of 2020. Foreseeable actions within the region which will impact the Induced Impact Area include the overall growth of Brunswick County and the proposed construction of Interstate 73, the Wilmington Bypass from US 17 North to US 17 South, and the upgrading of US Highways I ;? 4-8 74-76. All of these transportation improvements will promote accessibility to Southeast Brunswick County which in turn will support growth in the Induced Impact Area. The cumulative impacts to the environment could include an increase in population and housing densities which would encroach into the natural habitats, introduce pedestrian traffic across the natural habitats, and increase noise and night-lighting which may reduce or disturb wildlife, including some federal and state-protected species. Moreover, additional roadways, residences, and commercial development would affect wetlands and reduce available habitats for nesting and foraging thereby increasing competition among species. These secondary and cumulative impacts to natural habitats are associated with the projected 35 percent growth rate, rather than from the effects associated with the proposed second bridge. The mainland area between NC 211 and the Intracoastal Waterway will be developed by 2020, with or without the second bridge, as evidenced by the development plans of St. James Plantation. This mainland area does have the potential for containing habitats for protected plant and animal species as cited in the "Natural Resources Technical Report." The bridge corridor will be designed to avoid and minimize the impact to these natural habitats; however, these habitats will likely be encroached upon by development by the year 2020 or sooner, regardless of the proposed second bridge and corridor design. There are federal, state, and local laws which provide rules and regulations to prevent such secondary and cumulative impacts to the natural environment caused by unmanaged growth. The Federal Coastal Zone Management Act of 1972, CAMA, NC Executive Order 15 mandate that a consistency review be preformed prior to any impact. Local county and town zoning ordinances regulate the use of land. 4-9 4.2 SOCIAL IMPACTS 4.2.1 Chanties in Neighborhoods and Community Cohesion The residences lining Middleton Avenue would be impacted by the higher traffic volumes and noise levels associated with a second bridge. It is anticipated that there would be development pressure to rezone some portions of this residential street to allow commercial use. A maximum of ten houses and one business along this avenue will be displaced by the bridge and roadway. This should not impact neighborhood cohesiveness. Most of the Induced Impact Area currently has zoning which would minimize the intrusion of non-residential uses into residential areas. The only area which currently does not have zoning is a section of the Southeast Brunswick Sanitary District, however, zoning should be in place by the year 2000. 4.2.2 Changes in Travel Patterns and Accessibility The proposed project would provide a second access to Oak Island and a connection to NC 211 at SR 1500 at Smith. This would provide a more direct access to US 17, a four-lane divided highway which connects to US 74 and I-40. Accessibility would be improved to the western end of the island. The proposed project would also improve accessibility throughout f the region for emergency services such as police, fire, and ambulance and a more direct route to Brunswick County Hospital. Emergency evacuation routes would be improved and are discussed further in Section 4.2.6. In addition, the improved conditions would benefit tourists, school buses, commercial truck traffic, and commuter traffic. Congestion on the existing bridge and roadway would be reduced and levels of service improved. The new bridge will facilitate the provision of public and private utility services. The Town of Long Beach will have better access to its mainland extraterritorial jurisdiction and to the 4-10 95.63 acre mainland site of its proposed sewer treatment plant, accessible by a four-wheel drive path off of Sunset Harbor Road. The Town of Long Beach CAMA Plan supports the long-range development of a sewer system, however, it is unlikely that a sewer system will be approved and operational in Long Beach by the year 2000. Without a second bridge, the Town of Long Beach's ability to service the mainland would be severely limited and the town corporate boundaries would be less likely to change. The population of Oak Island consist of a mix of permanent residents, part-time residents and tourists. Introducing a second access to the island will change travel patterns for the entire population mix. Currently, coming from the north and east, travelers must exit US 17 on either NC 87 at Winnabow or NC 133 at Belville and travel between 20 and 25 miles on a two-lane road to access Oak Island via the existing bridge on NC 133. By constructing the second bridge and roadway from Oak Island to NC 211 at SR 1500 at Smith, a direct connection to US 17 will be made allowing travelers to continue further on a safer, four-lane divided highway until reaching Boliva. This route will be especially beneficial to those traveling to the western end of Oak Island. Travelers coming from such areas as Whiteville and other points to the west will be able to access Oak Island via the Second Bridge and eliminate approximately 15 miles from the trip. Day visitors would have better access to the Oak Island beaches because of the proposed Second Bridge and there would be an increase in day visitors. All along the North Carolina coast the number of day visitors increases as the population density increases on the mainland and better access is provided between the Piedmont region of the Carolinas and the coast. The 35 percent population increase of Brunswick County would put additional demands on all of the county beaches. The proposed Second Bridge would facilitate access and also could change beach destinations for the Shallotte area residents. The new bridge 4-11 ' would considerably shorten the distance to Long Beach for these mainland residents, most of whom now go to Holden Beach because of its proximity. Conversely, the shorter travel distance between Shallotte and Oak Island would enhance Shallotte developing as a regional 2/ retail center for Southeast Brunswick County. 7? 4.2.3 Impacts on Specific Social Groups Generally, the demographic trend all along the North Carolina coast has been for the M percentage of minority population to decrease as the result of the influx of predominantly white retirees. Only 9.2 percent of the Induced Impact Area's 1990 population was nonwhite M of which only 0.7 percent lived on Oak Island and 8.5 percent lived on the mainland. No minorities would be relocated by the construction of the Second Bridge and this proposed project would not adversely impact any social groups, including the elderly and handicapped, minority, low income, or ethnic groups. The project does, however, have the potential to benefit the elderly and handicapped on the island. The proposed Second Bridge would I reduce traffic congestion and improve the response time of law enforcement, fire protection and emergency medical services. 4.2.4 Relocation Impacts The estimated number of residential and business relocations is shown in Table 4.2.1. Each of the alternatives would relocate the same residences and businesses. ' It is the policy of the NCDOT to ensure that comparable replacement housing would be available prior to construction of federally assisted projects. Furthermore, the North Carolina Board of Transportation has the following three programs to minimize the inconvenience of relocation: * Relocation Assistance, 1 4-12 TABLE 4.2.1 ESTIMATED NUMBER OF RELOCATIONS ALTERNATIVES!A,B, ANDC OWNERS TENANTS TOTAL MINORITIES Residences (Families) 10 0 10 0 Businesses 0 1 1 0 Churches 0 0 0 0 Total 10 1 11 0 * Relocation Moving Payments, and * Relocation Replacement Housing Payments or Rent Supplement. With the Relocation Assistance Program, experienced NCDOT staff will be available to assist displaces with information such as availability and prices of homes, apartments, or businesses for sale or rent, and financing or other housing programs. The Relocation Moving Payments Program, in general, provides for payment of actual moving expenses encountered in relocation. Where displacement will force an owner or tenant to purchase or rent property of higher cost or to lose a favorable financing arrangement (in cases of ownership), the Relocation Replacement Housing Payments or Rent Supplement Program will compensate up to $22,500 to owners who are eligible and qualify, and up to $5,250 to tenants who are eligible and qualify. The relocation program for the proposed action will be conducted in accordance with the Federal Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970 (Public Law 91-646), and the North Carolina Relocation Assistance Act (GS-133-5 through 133-17). The program is designed to provide assistance to displaced persons in relocating to a replacement site in which to live or do business. At least one relocation officer is assigned to each highway project for this purpose. 4-13 \1 .1 `r C 1 I The relocation officer will determine the needs of displaced families, individuals, businesses, non-profit organizations, and farm operations for relocation assistance advisory services without regard to race, color, religion, sex, or national origin. The NCDOT will so schedule its work to allow ample time, prior to displacement, for negotiations and possession of replacement housing which meets decent, safe and sanitary standards. The displaces are given at least a 90-day written notice after NCDOT purchases the property. Relocation of displaced persons will be offered in areas not generally less desirable in regard to public utilities and commercial facilities. Rent and sale prices or replacement housing offered will i? be within the financial means of the families and individuals displaced, and be reasonably accessible to their places of employment. The relocation officer will also assist owners of displaced businesses, non-profit organizations and farm operations in searching for and moving to replacement property. All tenant and owner residential occupants who may be displaced will receive an explanation r regarding all available options, such as (1) purchase of replacement housing, (2) rental of replacement housing, either private or public, or (3) moving existing owner-occupant housing to another site (if possible). The relocation officer will also supply information concerning other state or federal programs offering assistance to displaced persons and will provide other advisory services as needed in order to minimize hardships to displaced persons in adjusting to a new location. The Moving Expense Payments Program is designed to compensate the displacee for the costs of moving personal property from homes, businesses, non-profit organizations, and farm operations acquired for a highway project. Under the Replacement Program for Owners, NCDOT will participate in reasonable incidental purchase payments for replacement dwellings such as attorney's fees, surveys, appraisals and other closing costs and, if 4-14 would be desirable and could accommodate projected increases in evacuation clearance volumes through 2020 without an increase in the time required to fully evacuate Oak Island. In the event of a hurricane both bridges would be used to evacuate the island thus doubling the evacuation capacity. The combination of the existing bridge and the second bridge should accommodate projected increases in evacuation clearance volumes through 2020 (11,700 vehicle increase, from 16,800 in 1994 to 28,500 in 2020) without an increase in the time required to fully evacuate the island. This additional evacuation capacity would reduce the risk of injury for island inhabitants and users. In the event of an accident at Brunswick Nuclear Plant two options are available. The first option is to use both bridges to evacuate the island. However, this would force evacuee's using the existing bridge to proceed toward the accident site before leaving the area of danger. The second option is to use only the second bridge to evacuate the island thus allowing evacuee's to proceed away from danger as they exit the island. Finally, the fact that Oak Island which is the most densely populated area of Brunswick County is served by just one bridge is another concern. The Oak Island swing bridge was demolished by a barge in 1971. Such an incident today would isolate Oak Island which had an estimated 1994 year-round population of 5,886 and peak summer population of 37,995. The consequences would be more severe if a disaster happened in 2020 with the projected summer peak population of nearly 70,000 and there was only one evacuation route off the island. 4.3 ECONOMIC IMPACTS The Second Bridge to Oak Island should have positive economic impacts. The following 4-17 411 sections discuss specific components of the economy. J 4.3.1 Regional and Local Economy Initially, the Second Bridge to Oak Island would affect the area economy by providing increased employment during the construction period, thereby resulting in additional income generation. Based on the Federal Highway Administration procedures for estimating construction related employment, each one million dollars of construction expense creates an average of 9.75 on-site jobs and 12.7 off-site jobs. Based on the estimated construction cost, Alternative A would create approximately 130 on-site jobs and 169 off-site jobs; Alternative B would create 120 on-site jobs and 156 off-site jobs; and Alternative C would create 123 on-site jobs and 160 off-site jobs. Minimal revenue loss during construction for off-road businesses is anticipated. There should be only minor interruption of traffic along NC 211 and SR 1500 On a longer term basis, the proposed project would enhance the local economy by providing better access between Oak Island and the mainland. The local economic base consists of mainly resort services such as motels, beach house rentals, restaurants, convenience stores, gift shops, and privately-owned golf and recreational facilities. Most of these services are geared toward the vacationing public and, as such, are dependent upon the seasonal flow of visitors for their sustenance. Better access provided by the Second Bridge would enhance the tourist economy. 4.3.2 Existing Highway-Related Businesses 'V Highway-related businesses are businesses that depend on pass-by traffic, such as convenience stores and gas stations, or the highway for transporting goods and services such I as trucking companies. A convenience store/gas station located at the intersection of SR 1 4-18 Impact on Property Values: The proposed project would also enhance the value of some lands, particularly along the new bridge corridor and at the intersection with NC 211. Some local officials speculated that a second bridge would also increase the land and property values for the Town of Long Beach. Impact on Government Revenues: Local government revenues would be enhanced by the higher property values associated with the bridge corridor. The cost of providing public services would be lowered by the reduction in travel costs and the ability to provide services more efficiently. 4.4 CULTURAL RESOURCE IMPACTS 4.4.1 Schools None of the proposed alternatives would directly impact schools in the project study area. A second bridge would give the Brunswick County Board of Education fresh alternatives for providing the most direct and efficient school bus transportation system for area students which may affect school attendance zones. 4.4.2 Churches and Cemeteries As discussed in Section 3.4.2, churches of various denominations are located within close proximity to the study area. Churches located both on the island and on the mainland may benefit from the increased accessibility that would be provided to permanent residents and tourists with a second bridge. No churches or cemeteries would be relocated by any of the alternatives. 4.4.3 Parks and Recreation As previously discussed in Section 3.4.3, there are many recreational facilities located near the project study area. These facilities would benefit from the increased accessibility pro- 4-21 i I vided with a second bridge. 4.4.4 Archaeological and Historical Properties Archaeological Resources Presently, there are no archaeological sites in the study area listed in the National Register of Historic Places. Based on the results of the archaeological and historical background r report prepared for the project, the probability of archaeological sites occurring within the study area is low. The most probable location for archaeological sites is along the rims of the Carolina Bays. If the Preferred Alternative impacts any of the Carolina Bays in the study ' area, an archaeological survey of the bay and the rim area will be conducted. .? Historic Architectural Properties Based on the results of the historic architectural survey, there are no properties listed in or eligible for listing in the National Register of Historic Places. The SHPO concurred with this determination by letter dated February 23, 1995. 4.4.5 Section 4(f) of the Department of Transportation Act None of the alternatives would require property from any parks, wildlife refuges or recreational land or significant historic sites as defined in Section 4(f) of the 1966 US Department of Transportation Act, as amended. A letter of concurrence from the FHWA, concerning the Intracoastal Waterway public access site at the end of Middleton Avenue, is included in the Appendix. I 4.5 UTILITY IMPACTS 4.5.1 Electric Power Transmission i Each of the three build alternatives will cross a 30.5 meter (100 foot) power transmission 1 4-22 I line right of way easement as shown in Exhibit 3.5.1. Brunswick County Electric Membership maintains the transmission line which carries a voltage of 69 kilovolts. No relocation of the powerline will be required by Alternatives A, B, or C. An electrical power substation, located at SR 1500 (Midway Road) next to the Midway Trading Post, is outside of the proposed right of way and will not be affected. 4.5.2 Water Service Along Middleton Avenue, all three build alternatives would cross water distribution lines at Beach Drive, Dolphin Drive, Pelican Drive, Oak Island Drive, and Yacht Drive, as shown in Exhibit 3.5.1. Another water distribution line runs parallel to the east side of Middleton Avenue between Beach Drive and Yacht Drive. Although not anticipated, portions of this water line may require relocation if conflicts arise during construction. Short term interruptions to service may occur. A water storage tower located on Middleton Avenue near Pelican Drive would not be impacted. The 1992 Brunswick County Land Use Plan, "Year 2010 Systems Recommendations", includes a future 16 inch water trunk line coming from the water treatment plant, located on the southern side of NC 211 near Beaverdam Creek, following NC 211 westward to the intersection of NC 211 with the proposed roadway. It would then turn southward to follow the proposed roadway and would be carried along the proposed bridge into Long Beach. , 4.5.3 Sewer Service There will be no impacts to sewer service within the project study area because all residences and businesses rely upon septic systems for sewage disposal. It is unlikely that a sewer system would be approved and operational in Long Beach by 2000, but it is probable that a sewer system will be operational by the year 2020. The system may be constructed 4-23 , I independently by the Town of Long Beach or in concert with the other Oak Island and mainland municipalities. Local officials do not anticipate that the lack of a sewer system in Long Beach would deter development through 2020 as evident by the current building boom. The Town of Long Beach CAMA Land Use Plan stated that it would take approximately 75 years for Long Beach to be fully developed. The lack of sewer system does affect which residential lots may be developed, but given the substantial number of vacant lots, the overall rate of residential development is not anticipated to be deterred through 2020. 4.5.4 Natural Gas Service ' Natural gas service is not available within the project study area. 4.5.5 Communications Atlantic Telephone provides telephone service to the portion of the study area located along NC 211 and SR 1500. As shown in Exhibit 3.5.1, fiber optic telephone cables, copper telephone cables, and cable television cables run along both NC 211 and SR 1500 in this area. All three build alternatives would cross cables that run along NC 211. A remote telephone office hub, located between the electric power substation and Midway Trading Post on SR 1500, would not be affected. BellSouth provides telephone service to the Long Beach area. All three build alternatives `i would cross buried copper filled cables at Oak Island Drive, Dolphin Drive, and Beach Drive. These cables may require relocation if located within the proposed construction limits. However, no disruption of service would be experienced by area residents. 4.5.6 Railroads I No railroad lines are located within the project study area. 1 4-24 4.6 PHYSICAL ENVIRONMENTAL IMPACTS 4.6.1 Floodplain Impacts As part of National Flood Insurance Program, FEMA has determined floodway boundaries as a tool for floodplains management. Based on FEMA's definition, the 100 year floodplain is divided into a floodway and floodway fringe. The floodway is the channel of a stream plus any adjacent floodplain areas that need to be kept free of encroachment so the 100 year flood can be carried without substantial increases in flood heights. Minimum federal standards limit such increases to one foot, provided hazardous velocities are not produced. However, when a detailed flood study is performed, site specific elevation limits of flood height increases are established. The area between the floodway and the 100 year floodplain boundaries is the floodway fringe. The floodway fringe encompasses the portion of the floodplain that could be completely obstructed without increasing the water surface elevations above FEMA's published floodway elevations. As previously shown in Exhibit 3.6.1 the proposed alternatives cross the 100 year floodplain of the Intracoastal Waterway at the same location. There would be no floodplain encroachment at the Intracoastal Waterway for any alternative, the proposed bridge will span the waterway and its associated floodplain. 4.6.2 Hydraulic Impacts The proposed action would increase the overall stormwater runoff from the existing roadway system because of the increase in pavement surface. However, the proposed project would not make a significant difference in the hydrology of the study area. Pipe culverts would be designed to assure there would be a minimal increase in the water surface elevation during the base flood. They would be designed such that any increase in 4-25 I backwater elevation would not exceed the allowable increase as published by the FEMA detailed flood study for the area. Pipe sizes and elevations will be determined during design. Both the Davis Canal and the Intracoastal Waterway are estuarine waterways subject to tidal influences, therefore it is expected that backwater elevations and velocities would not increase as a result of the proposed project. The Intracoastal Waterway will be spanned by a fixed high rise bridge with a vertical clearance of 20.0 meters (65 feet) over mean high ' water. The Davis Canal bridge will be replaced in its existing location and at its existing elevation. Limits within which activity could take place would be restricted to that necessary for the conduct of work and would be defined. Under the conditions described herein, any impacts to the natural and beneficial floodplain values associated with the project would be ' negligible. Potential impacts to the floodplain of the water courses throughout the project area as a i result of erosion will be mitigated through strict adherence to the North Carolina Department of Transportation's, "Best Management Practices For Protection of Surface Waters", June 1991. This policy was developed to minimize the degradation of the state's waters through the development of roadway projects. 4.6.3 Geoloev. Toooerat)hv, and Soils Geology No major alterations to the study area geology are anticipated as a result of the proposed project. Topography All alternatives would have approximately the same effect on the study area topography. 1 4-26 Since the project area typically consists of level terrain, the alternatives are expected to be borrow construction projects, meaning that fill dirt would be required for the highway. Substantial differences in the topography would occur with the construction of the bridge over the Intracoastal Waterway to reach the required vertical clearance of 20 meters (65 feet) for navigable waters. Soils No major changes to study area soils are expected as a result of the proposed project. However, construction of a new road would temporarily disrupt the landscape, exposing unvegetated soil to potential accelerated erosion losses. Oxidation and subsequent subsidence of affected organic soils is another potential impact. The possibility of oxidation of organic soils is greatest in Alternative B, which has the most organic soil. The potential is lowest in Alternative A, which has the least organic soil. Undercutting to remove unsuitable organic material may be required for all the proposed alternatives. The low relief and lack of perennial streams means potential erosion impacts would be minimal and very local in Alternative B. In Alternative C, one stream would be crossed, so greater erosion potential impacts would be expected. The impact in Alternative A would be greatest, since it crosses four small perennial streams where the carrying capacity of moving water has sufficient potential to erode soil. However, since relief is minimal, no longterm adverse impact is expected in any of the alternatives, provided proper sediment control is accomplished during construction. 4.6.4 Mineral Resources The Yellow Banks confined (diked) disposal facility (CDF), located along the north side of the Intracoastal Waterway, would be impacted by all three alternatives. Coordination with 4-27 the US Army Corp of Engineers was initiated to determine the impact to the Yellow Banks CDF. Copies of the correspondence are included in Appendix A. The encroachment onto the Yellow Banks CDF is estimated to be 5 hectares (12 acres) for Alternatives A and B, and 6 hectares (15 acres) for Alternative C. Coordination with the COE will continue to minimize the impacts to the Yellow Banks CDF as much as possible. No other known mineral resources would be impacted by any alternative. 4.6.5 Hazardous Material Sites/Underuound Storage Tanks Each site in the right-of-way of the Preferred Alternative will be monitored including regulatory status, site visits, interviews with property owners and on-site analysis. An i assessment will be performed to the degree necessary to determine levels of contamination ' and to evaluate remediation options along with the associated acquisition costs. Resolution of problems associated with contamination would be coordinated with appropriate regulatory agencies and, prior to right-of-way acquisition, appropriate actions would be taken, where applicable. i' An initial assessment of hazardous materials sites and underground storage tanks located within the project study area was completed. A discussion of the survey methodology and the results is contained in Section 3.6.5. As a result of the survey, two (2) potential underground storage tank sites were identified. Exhibit 3.6.3 illustrates the approximate location of each site in relation to the proposed alternatives. Alternative A would impact ! only one potential underground storage tank site, the Beach Pantry on Middleton Avenue. ' Alternatives B and C would potentially impact the Beach Pantry as well as the Midway Trading Post, located at the intersection of SR 1500 and NC 211. No hazardous material sites were identified. I 1 4-28 Following the initial assessment, a determination was made of the risk of encountering unknown contamination at each site. These assessments were based on the likelihood that contamination exists at the site and on the degree of concern this presents relative to the build alternatives being considered. The risk system identifies four degrees of risk: No, Low, Medium, and High. This categorization is for general purposes. Sites where known spills or leakages have occurred may not necessarily present a high cause for concern if the environmental agencies are aware of the situation, enforcement actions are being taken, and remedial activities are either completed or underway. The degrees of risk are defined as follows: No Risk means that the observed conditions of the site, the state records, and the current and previous business activity does not support a contamination risk. Low Risk means that the business handles hazardous materials but has a clean appearance and no violations. An example of such a business might be a gas station with new underground storage tanks, monitoring wells, leak prevention system, no automotive maintenance, and a clean record in the environmental agency's files. Medium Risk indicates there is a higher concern or may include sites of known contamination. Medium risk sites may require some follow-up prior to right-of-way acquisition. High Risk suggests that additional studies are recommended and that soil and groundwater sampling and laboratory analysis may be required. 4-29 M MI M m m mm m m m m m m m m m m m m U) A m D N -0 O D < ?Z m ? A 20 A m O D °°-m m r- ? 00 m O D m r r mr D O 0 :E F Co Z < C) 0 m r ?G ._. ? ? NC ?t d -Pw 61rci . - - ?t ) ? r m S c W ti <D G A CZIP W n Q. C Q? CC] Z ?. 0 Q Sr ID pr = CA ID 3 (D m Z m rt ?S n > m-IM 0 om Long Beach Atlantic Ocean ? ? ? ? ? ? ? ? i ? r ? ? S ? ? ? ? ? Y Both of the evaluated sites located within the project study area would be considered Low ,n Risk. 4.6.6 Air Quality Impacts The results of the microscale air quality analysis for the No-Build and Build Alternatives are presented in this section. The CO concentrations were compiled to include the project m roadway and background concentrations. The one-hour and eight-hour concentration m standards as established by the National Ambient Air Quality Standards are 35 ppm and 9 ppm, respectively. For the future alternatives, the design year 2020 summer peak one-hour m concentrations range from 2.8 to 4.4 ppm for Alternative A and B, and 2.8 to 4.5 ppm for Alternative C, and the eight-hour concentrations range from 1.7 to 2.7 ppm for Alternatives A, B, and C. The No-Build Alternative is expected to experience one-hour concentrations ranging from 6.1 to 20.4 ppm, and eight-hour concentrations from 3.7 to 12.4 ppm. Based on these results, no exceedances of either criteria is predicted to occur at any receptor for the Build Alternatives. However, the No-Build Alternative is expected to exceed the eight- hour concentration standards, at a distance of 15 meters (49 feet) from the existing u centerline, for six of the ten locations analyzed. The results of the Microscale Analysis are tabulated in Table 4.6.1. This table shows the 2020 one-hour and eight-hour CO concentrations for No-Build and Build Alternatives at the selected receptors. The project is located in Brunswick County, which has been determined to be in compliance with the National Ambient Air Quality Standards. Forty (40) CFR Part 51 is not applicable, because the proposed project is located in an attainment area. This project is not anticipated r to create any adverse effect on the air quality of this attainment area. 1 4-30 4.6.7 Noise Impacts Future Noise Levels The prediction of highway traffic noise is a complicated procedure. In general, the traffic situation is composed of a large number of variables which describe different cars driving at different speeds through a continually changing highway configuration and surrounding terrain. To assess the problem, certain assumptions and simplifications must be made. The procedure used to predict future noise levels is the Noise Barrier Cost Reduction Procedure, STAMINA 2.0 and OPTIMA (revised March 1983). The BCR (Barrier Cost Reduction) procedure is based upon the FHWA Highway Traffic Noise Prediction Model (FHWA-RD-77-108). The BCR traffic noise prediction model uses the number and type of vehicles on the planned roadway, their speeds, the physical characteristics of the road (curves, hills, depressed, elevated, etc.), receptor location and height, and, if applicable, barrier type, barrier ground elevation and barrier top elevation. The roadway sections for this analysis were assumed to be flat, representing "worst case" topographic conditions. Design hour and level of service "C" volumes were compared for the proposed design. The 4-31 TABLE 4.6.1 DESIGN YEAR 2020 ONE-HOUR/EIGHT-HOUR CO CONCENTRATIONS volume which resulted in the noisiest conditions was used with the anticipated speed to predict future noise levels. The computer model was used to determine the number of receptors by FHWA activity category which, during the peak hour in the design year, would be exposed to noise levels approaching or exceeding the FHWA noise abatement criteria and or experiencing substantial noise increase. Table 4.6.2 shows the numbers of receptors expected to experience traffic noise levels approaching or exceeding their respective FHWA noise abatement criteria or experiencing a substantial increase in the existing noise levels. Receptor impacts for activity Category B and C criteria for Alternatives B and C is 57 and 3, respectively, and for Alternative A is 59 and 3, respectively. Other information included in Table 4.6.2 is the maximum extent of the 67 dBA and the 72 dBA noise level contours, and predicted noise levels at 15, 30, and 60 meters (50, 100, and 200 feet) from the center of the nearest travel lane. The 67 dBA and 72 dBA noise level 8 contours are generally used to assess the exposure impacts on land uses. This information can assist local authorities in exercising land use control over the remaining undeveloped n lands adjacent to the roadway in local jurisdiction and to prevent further development of incompatible activities and land uses. Table 4.6.3 indicates the predicted exterior traffic noise level increases for area receptors. Traffic Noise Impact Analysis Traffic noise impacts occur when the predicted traffic noise levels either: 1. approach (within 1 dBA) or exceed the FHWA noise abatement criteria, or 2. substantially exceed the existing noise levels (greater than or equal to 15 dBA, ' for less than or equal to 50 dBA existing noise levels, or greater than or equal 1 4-32 TABLE 4.6.2 FHWA NOISE ABATEMENT CRITERIA SUMMARY 4-33 1. 15m, 30m, and 60m distances are measured from center of nearest travel time. 2. 72dBA and 67dBA contour distances are measured from center of proposed roadway. TABLE 4.6.3 TRAFFIC NOISE LEVEL INCREASE SUMMARY RECEPTOR EXTERIOR NOISE LEVEL INCREASES II to 10 dBA for greater than 50 dBA existing noise levels). I 11 a 0 Ia I I I Consideration for noise abatement measures can be applied to receptors which fall in either category. Physical measures to abate anticipated traffic noise levels can often be applied with a measurable degree of success by the application of solid mass, attenuable measures to effectively detract, absorb and reflect highway traffic noise emissions. Solid mass, attenuable measures may include earth berms or artificial abatement walls. Noise barriers reduce noise levels by blocking the sound path between a roadway and noise sensitive areas. This measure is most often used on high-speed, limited-access facilities where noise levels are high and there is adequate space for continuous barriers. Noise barriers may be constructed from a variety of materials including concrete, wood, metal, earth and vegetation. For each of the alternatives, most of the impacted receptors are located on Oak Island between the Intracoastal Waterway and SR 1190 (Oak Island Drive) where the proposed facility connects to Middleton Avenue. Other isolated impacted receptors are located near the end of the project near NC 211. On this project, all residences and commercial establishments will have direct driveway connections, and intersections will be at grade. For a noise barrier to provide sufficient reduction it must be high enough and long enough to shield the receptor from significant sections of the highway. Access openings in the barrier severely reduce the noise reduction provided by the barrier. It then becomes economically unreasonable to construct a barrier for a small noise reduction. Safety at access openings (driveways, crossing streets, etc.) due to restricted sight distance is also a concern. To provide a sufficient reduction, a barrier's 4-34 length would normally be eight times the distance from the barrier to the receptor. Businesses, churches, and other related establishments located along a particular highway normally require accessibility and high visibility. Solid mass, attenuable measures for traffic noise abatement would tend to disallow these two qualities and thus, would not be acceptable abatement measures in their case. Abatement measures such as traffic management, alteration of the proposed alignment, or purchase of land for use as a buffer zone are neither reasonable or feasible with this project. All receptors approaching or exceeding FHWA criteria and NCDOT guidelines exist under the previously described conditions. Based on past project experience, these factors effectively negate the effectiveness of any physical abatement measures. Therefore, no noise abatement measures are recommended for the project. In areas of impacted receptors where abatement measures have been considered and found not to be reasonable, a vegetative barrier may be considered for aesthetic screening. Summary Although noise impacts are an unavoidable consequence of roadway construction, the proposed Second Bridge to Oak Island will not substantially deteriorate the surrounding acoustic environment. By the Design Year 2020, the number of receptors approaching or exceeding the criteria is estimated to be 62 for Alternative A and 60 for Alternatives B and C. All of the receptors that approach or exceed the noise abatement criteria have driveway connections. Therefore, noise barriers are not considered reasonable and are not recommended on this project. 4.6.8 Farmland Impacts The purpose of the Farmland Protection Policy Act (FPPA) of 1981 is to minimize the extent 4-35 !'a ,o la to which federal programs contribute to the unnecessary and irreversible conversion of farmland to nonagricultural uses. In accordance with Section 658.4 of the Act, a Form AD- 1006 was submitted to the United States Department of Agriculture (USDA), Soil Conservation Service (SCS) to determine whether the project is subject to the Act. A copy of the completed form is included in Appendix A.2. The SCS identified a total of approximately 223,061 hectares (550,960 acres) of farmable land in Brunswick County of which 99,485 hectares (245,728 acres) are farmland as identified by FPPA. Approximately 2 hectares (6 acres) of prime and unique farmland occurs within Alternative A, 7 hectares (18 acres) within Alterative B and 5 hectares (12 acres) within Alternative C. Statewide and local important farmlands also occur within the alternatives. Alternative A contains 6 hectares (16 acres), Alternative B contains none, and Alternative C contains 1 hectare (2 acres) of statewide and important farmlands. The proposed alternatives were evaluated to determine the effect of the project on farmlands and to determine the suitability of the project for protection. The SCS measured the relative value of FPPA farmlands within the corridors for Alternative A, Alternative B and Alternative C and scored the alternatives 18, 17 and 10 points, respectively. Based on site assessment criteria, such as the amount of land in nonurban use within one mile of the project and the proximity of the project to an urban area, a site assessment score of 37 was determined for Alternative A, Alternative B and Alternative C. The combined scores of Alternative A, Alternative B and Alternative C are 55, 54 and 47, respectively. The USDA recommends for projects with scores totaling 160 points or more, that protective measures be considered. Based on Form AD-1006, no protection measures for farmland are recommended on this project. 4-36 4.7 NATURAL RESOURCE IMPACTS Existing terrestrial and aquatic resources, as well as habitat for protected species in Alternatives A, B, and C are described below, along with the impacts from potential right-of-way within the alternative corridors. Because the proposed corridors are 150 meters (492 feet) wide and the proposed right-of-way is only 30 meters (98 feet) wide, the impacted areas are substantially less than the particular corridor's area. Further details concerning the natural resources studies can be found in Blank and Braham (1996). Table 4.7.1 presents a general comparison of current land-use conditions in the three second bridge alternative corridors. The amount of developed land is nearly the same in all three corridors. Alternatives A and B both have about 18 hectares (45 acres), and Alternative C has about 19 hectares (47 acres). The difference among the corridors is largely due to differences in the area of right-of-way/roads and spoil banks. The difference among corridors in right-of-way/roads areas is small. Alternatives A and B have about 2 hectares (4 acres) each, and Alternative C has about 3 hectares (8 acres). In all three corridors, roads occupy about one-quarter of the developed land category. All three corridors cross the spoil bank at the same approximate location have about the same area of spoil bank, about 5 hectares (13 acres). In each corridor, spoil bank occupies about one-quarter of the developed land category. With about 8 hectares (20 acres) only 7 percent of Alternative A is cultivated and with about 4 hectares (10 acres) each only 5 percent of Alternatives B and C is cultivated. 4-37 ?o n I O m a IjR .m II m w 4.7.1 Biotic Communities The proposed project would interrupt an otherwise forested area with a graded and compacted road corridor that would level the microtopography and permanently replace vegetation with impervious surface cover. These changes would (1) reduce available habitat for plants, (2) fragment plant communities, (3) increase surface runoff that must be accommodated by residual plant communities, (4) possibly alter plant-water relationships by changing the natural subsurface water movement, and (5) reduce available wildlife habitats by the amount of area impacted. Terrestrial Communities Reduction of plant habitat would correspondingly reduce the size of local plant populations. Impact from habitat reductions will be most significant on longleaf pine communities (Table 4.7.2 and 4.7.3). They contain the greatest number of native species, and the amount of longleaf pine forest in North Carolina has declined the most since the time of European settlement. Today, only about sixteen percent of the area originally occupied by longleaf pine remains (Barnett and Dennington 1992). Approximately 4% of Alternative A, 20% of Alternative B and 38% of Alternative C is composed of longleaf pine. Alternative A, which contains 4.4 hectares (11 acres) of longleaf pine, would minimize growing space losses to longleaf pine communities. Alternative C would provide the highest losses, since it contains 4-38 TABLE 4.7.1 AREA OF EACH CORRIDOR BY LAND USE AND AQUATIC CATEGORIES TABLE 4.7.2 FORESTLAND IN PROPOSED ALTERNATIVE CORRIDORS BY FOREST TYPE AND AGE CLASS , AREA IN CORRIDOR FOREST TYPE AGE CLASS A B C ha ac ha ac: ha ac Pine Plantation 1-29 66.7 165.0 27.1 67.0 22.7 56.0 30-59 -- -- -- -- -- -- Over 60 -- -- Bottomland Hardwoods 1-29 0.4 1.0 30-59 -- -- Over 60 5.7 14.0 3.2 8.0 3.6 9.0 Longleaf Pine 1-29 -- -- -- -- -- -- 30-59 -- -- 12.5 31.0 21.8 54.0 , Over 60 4.4 11.0 7.3 18.0 19.8 49.0 Pocosin 1-29 -- -- 10.5 26.0 8.9 22.0 f 30-59 4.0 10.0 2.8 7.0 4.8 12.0 Over 60 3.6 9.0 6.0 15.0 -- -- Coastal Scrub 1-29 -- -- -- -- 30-59 0.5 1.0 0.5 1.0 0.5 1.0 ' Over 60 -- -- -- Total Forest All Ages 85.3 211.0 70.2 173.0 82.1 2030 . 42 hectares (103 acres) of longleaf pine, over twice the amount of Alternatives A and B. Alternative B contains 20 hectares (44 acres) of longleaf pine. The area of pine plantation in each corridor varies considerably, even though plantations are the single largest land use type in Alternatives A and B and the second largest land use in ' Alternative C. Alternative A has the most plantation, about 67 hectares (165 acres) or 57 percent of the corridor. Except for small interruptions at streamheads, plantations occur , 4-39 , I I throughout the central portions of Alternative A. Alternative B has about 27 hectares (67 acres) of plantation, about 36 percent of the corridor. They occur in the central portion of Alternative B, but they are separated into two areas by pocosin and longleaf pine. Alternative C has the least plantation, about 23 hectares (56 acres) or 22 percent of the corridor, which occur only in the northern third of the corridor. The most successful plantations in the corridors occur in the central portions of Alternative A, beginning about 2744 meters (9,000 feet) south of NC 211 and ending about 4939 meters (16,200 feet) south of NC 211. Both Alternatives B and C once contained successful plantations, but most of these plantations were destroyed by wildfire. In Alternative B, burned plantations begin about 1616 meters (5300 feet) south of NC 211 and end about 1890 meters (6200 feet) south of NC 211. In Alternative C, all plantations were burned, beginning about 1311 meters (4300 feet) south of NC 211 and ending about 3049 meters (10,000 feet) south of NC 211. The pine/scrub oak sandhill community occurs largely in Alternative C, about 3323 meters (10,900 feet) south of NC 211. In Alternative A, pocosin occupies 4 hectares (10 acres), about 7 percent of the corridor. a It stretches from about 122 meters (400 feet) to about 396 meters (1300 feet) south of NC i 211. This area is the only extensive pocosin in Alternative A, although pocosin also occurs along small streamheads located at about 1829 meters (6000 feet), 2439 meters (8000 feet) and 2744 meters (9000 feet) south of NC 211. Alternative B contains the highest proportion of pocosin, about 11 hectares (28 acres). Pocosin occurs immediately south of NC 211, and it extends south for about 1402 meters (4600 feet). Pocosin also occurs along a small streamhead located about 2317 meters (7600 feet) south of NC 211, and also on part of a 4-40 Carolina Bay, stretching from 2896 meters (9500 feet) to 3293 meters (10,800 feet) south of NC 211. Pocosin occupies 13 hectares (34 acres), of Alternative C, and as in Alternative ' B, occurs immediately south of NC 211. Pocosin also stretches from about 1524 meters (5000 feet) to about 1829 meters (6000 feet) south of NC 211, the eastern portion of a large Carolina Bay. In the study corridors, the bottomland hardwoods type is not common. With 6 hectares (14 ' acres), it composes only about 5 percent of Alternative A, and with 3.2 hectares (8 acres) and 3.6 hectares (9 acres) respectively only about 3 percent each of Alternatives B and C. Bottomland Hardwoods occur in three places in Alternative A: about 1402 meters (4600 feet), about 5610 meters (18,400 feet), and about 6219 meters (20,400 feet) south of NC 211. The first location is the only Bottomland Hardwood community above 7.6 meters (25 feet) elevation, and the only young Bottomland Hardwoods stand. The other two locations A are part of the unnamed stream that drains into the Intracoastal Waterway. In Alternative B, Bottomland Hardwoods occur only along an unnamed creek located north of the spoil bank. In Alternative C, Bottomland Hardwoods occur in two places, the eastern portion of Ashpole Swamp and along the unnamed creek mentioned above. Table 4.7.3 indicates the approximate amount of each type that would be impacted by right- of-way. Relative relationships among the alternatives generally do not change. The amount of the longleaf community impacted by Alternative C is almost twice as much as by Alternative B, while the amount of pocosin impacted by Alternative B is only slightly higher than the amount impacted by Alternative C. This is important because the longleaf ' community is the most vegetationally complex, it is the forest type of relatively greater value as habitat (see Table 3.7. 1) and because extant longleaf communities have historically suffered considerably more decline through species conversion. ' 4-41 , i? I i i io i 1211 TABLE 4.7.3 AREA OF FORESTLAND TYPES IMPACTED BY RIGHT-OF-WAY Fragmentation of forest communities is a potential concern. Fragmentation increases the probability that uncommon species will be locally extirpated (Hunter 1990). Fragmentation is especially problematic in areas with little forest. Fortunately, the project area between Smith and the Intracoastal Waterway, the section where fragmentation is a potential issue, is almost completely forested. Thus, no substantial adverse impact from fragmentation is expected from any alternative corridor. Trees adjacent to the outer limits of construction would lose the part of their root system that lies inside the construction right-of-way. In addition, plants adjacent to the construction areas may be run over or against by construction vehicles. Since trees maintain a balance between the amount of crown and the amount of roots (Kramer and Kozlowski 1960), removing or damaging part of the root system would cause affected trees to experience water stress of the crown. In limited cases, the stress may not be outwardly noticeable. In extreme cases, individual trees may die either from desiccation or wind throw. This impact 4-42 is unavoidable. It would be lowest in Alternative B, the shortest alternative, and greatest in Alternative A, the longest. Potential exists to foster longleaf pine restoration in conjunction with this project. Extensive areas of slash and loblolly plantations nearby are not thriving, and longleaf and pond pines have actually persisted in areas where the planted species have failed. The salutary effects of recent fires on the natural communities even at the expense of the plantations can be noted as well. Potential for successful habitat restoration appears greatest in Alternative C. Terrestrial Wildlife Negative impacts to animal species would predominantly be related to conversion of habitats and due to hazards created by frequent vehicular traffic in an area where such traffic did not occur previously. Snakes, other reptiles, and amphibians are especially vulnerable to death on highways at night when they seek warmth provided by radiant surfaces, as evidenced by the great many reptile specimens thus recorded (Palmer and Braswell 1995). Small mammals and deer are also frequently victims in areas where their populations are abundant. Predation on small mammals by raptors (hawks and owls) able to spot prey in the broad expanse of open area alongside highways is also an observed consequence of highway construction and right-of-way maintenance. Such predation seldom severely affects the rodent populations and typically enhances raptor populations, although predators occasionally are hit when diving across roads for prey in the path of oncoming vehicles. Aquatic Community Impacts Freshwater Streams: The lack of extensive stream systems in the project area means little potential impact should be expected on aquatic communities. Aquatic vegetation seldom occurs, so culverts will not eliminate this component of the biotic community. The fish 4-43 species observed and that have been mentioned as possible users of the small streams are not likely to be adversely affected by culverts. The lack of anadromous fish in these sections of the local streams implies no impact on such species will be expected. Alternative B would have no impact on the aquatic community. Because Alternative C would cross one stream and a small section of a high quality water zone while Alternative A would cross four streams and a long section of a high quality water zone, these corridors could pose potential threats to downstream aquatic communities. However, careful adherence to Best Management Practices would eliminate such threats, given the low slopes and low gradients of the systems affected. Saltwater Tidal Areas: Saltwater animal communities will only be impacted to the extent that I breeding grounds and forage area will be slightly reduced at Davis Canal. (e 4.7.2 Water Resources Streams, Canals and Impoundments Only headwaters and small tributaries of any named systems would be affected by the I proposed project. Few defined freshwater stream channels occur in the corridors, and these are mostly low-gradient drains. Characteristics of these streams are shown in Table 4.7.4. .? As indicated, Alternative A crosses four streams, Alternative C crosses one, but Alternative B crosses none. Streams crossed will be enclosed in pipes of about 3 meters in length. No ponds or reservoirs occur in any of the corridors. Approximately 3.2 kilometers (2 miles) In n of Alternative A pass through the High Quality Water Zone surrounding Mercers Mill Creek. Alternative C abuts a High Quality Water Zone around the headwaters of Polly Gully Creek. Because all corridors follow the same route over the Atlantic Intracoastal Waterway and Davis m 4-44 TABLE 4.7.4 STREAM CHARACTERISTICS IN ALTERNATIVE A AND ALTERNATIVE C' ALTERNATIVE A3 ALTERNATIVE C Creek Name Trib. Mercers Mill Unnamed Trib. Mercers Mill Unnamed Ashpole Swamp Trib. Substrate Sandy muck Sand Sand Sand Sand Current Sluggish Moderate Strong Moderate Moderate Channel Width (m) 1.2-3.0 0.45 1.8 Variable 1.53 (Ditched) Bank Height (cm) 15.0 30.5 45.7 25.4 1.53 Water Depth (cm) 10.2 22.5 17.8 25.4 5.1 Water Color Black Black Black Clear Black Clear Water Odor None None None None None Aquatic Vegetation Blue green algae None Liverworts None Cattails Adjacent Vegetation Loblolly pine Sweet bay Loblolly pine Hardwoods/vin es Hardwoods Wetlands Associated Narrow corridor Both sides Both sides 20 cm organic mat. None • No streams are crossed by Alternative B Canal, the impacted area of about one hectare (2 acres) of saltwater tidal area is the same for all corridors. This impact is the result of footing placement and expanded earth fill slopes at Davis Canal. Water Quality Low gradients and ill-defined drainage patterns in the study area indicate soil siltation and sedimentation do not pose substantial threats to water quality. Since sandy soils predominate in the study area, infiltration of surface runoff should be rapid in most places. Although, highway runoff from paved surfaces always poses a non-point source pollution threat, a Federal Highway Administration research project studying the effects of highway runoff on water quality concluded that stormwater runoff from low to medium traffic volumes (under 4-45 J 30,000 vehicles per day) exert minimal to no impact on receiving waters. Moreover, appropriate planning and construction using the NCDOT's Best Management Practices for Protection of Surface Waters will manage local runoff, so no substantial adverse effects are expected. Potentially, the most widespread impact on water resources could result from subtle m hydrologic changes due to compaction of soils beneath the proposed roadway. Such m compaction is unavoidable because native materials underlying the paved road must be sufficiently stabilized to withstand vehicular traffic. Therefore, because surface drains are ill-defined in this area and so much of the existing lateral movement of water appears to be via subsurface drainage, the effects on water movement could vary considerably. Changes in water movement could have both immediate and longterm effects on vegetation communities and could ultimately create or degrade wetlands adjacent to the roadbed. Placing culverts at currently defined drains would assure maintenance of surface flow. O Location of culverts at all discernible linear depressions will be considered to maintain existing drainage patterns. Construction of the high-level span across the Intracoastal Waterway and replacement of the existing span across Davis Canal will have no appreciable impact on water quality. Neither structure will impede tidal flow of the spanned waters nor interfere with activities of the faunal species using these waters, so anadromous fish migrations will not be affected. Com- mercial use of the Atlantic Intracoastal Waterway will not be affected. 4.7.3 Waters of the United States The USACOE has adopted, through the Council on Environmental Quality (CEQ), a wetland mitigation policy which embraces the concept of "no net loss of wetlands" and sequencing. m 4-46 The purpose of this policy is to restore and maintain the chemical, biological, and physical integrity of waters of the United States, specifically wetlands. Mitigation of wetland impacts has been defined by the CEQ to include: avoiding impacts, minimizing impacts, rectifying impacts, reducing impacts over time, and compensating for impacts (40 CFR 1508.20).. Each of these three aspects (avoidance, minimization, and compensatory mitigation) must be considered sequentially. The amount of wetland determined in each of the corridors is indicated in Table 4.7.5. Table 4.7.5 indicates that Alternative B contains the most wetland, while Alternatives A and C are very close in total area. Some of the wetland areas that occur in a corridor extend across the entire corridor and therefore cannot be avoided. However, at a number of sites, only a small spot of wetland occurs within the corridor boundary so the entire area might be avoided with careful placement of a right-of-way during preliminary design. Avoidance Avoidance mitigation examines all appropriate and practicable possibilities of averting impacts to waters of the United States. According to a 1990 Memorandum of Agreement (MOA) between the Environmental Protection Agency (EPA) and the USACOE, in deter- 4-47 TABLE 4.7.5 APPROXIMATE EXTENT OF WETLAND IN CORRIDOR I a mining determining "appropriate and practicable" measures to offset unavoidable impacts, o such measures should be appropriate to the scope and degree of those impacts and practicable in terms of cost, existing technology, and logistics in light of overall project purposes. m The project purpose necessitates traversing the area between NC 211 and the Intracoastal Waterway. Because of the extensiveness of wetland between these two boundaries, totally m avoiding wetland impacts is not feasible. Each of the study alternatives includes some wetland areas and some of these areas span the entire corridor widths. Table 4.7.5 shows the amount of wetland occurring in each corridor. However, careful consideration of terrain and biotic communities during development of the build corridors has largely avoided extensive reaches of some pocosin and bottomland hardwood areas. When such areas were unavoidably crossed, such crossings were always positioned at the narrowest possible n locations. The net effects of these avoidance measures are shown in Table 4.7.6. By total area and by type, amounts of impacts differ only slightly in the three alternatives. Alternative C impacts the smallest area, followed by Alternative A, then Alternative B. However, the largest wetland type impacted in Alternative A is the pine plantation type, which has lost most of the natural habitat features of wetlands originally found in this ecosystem. This semi-converted condition also applies to the pine plantation found in Alternative B. Minimization Minimization includes examination of appropriate and practicable steps to reduce adverse impacts to waters of the United States. Implementation of these steps will be required m through project modifications and permit conditions. Minimization typically focuses on decreasing the footprint of the proposed project through reduction of median widths, right- m m 4_48 TABLE 4.7.6 APPROXIMATE EXTENT OF WETLAND IN RIGHT-OF-WAY of-way widths, and fill slopes. Other practical mechanisms to minimize impacts to waters of the United States include strict enforcement of sedimentation control BMPs for protection of surface waters during the entire life of the project; reduction of clearing and grubbing activity; reduction/elimination of direct discharge into streams; reduction of runoff velocity; reestablishment of vegetation on exposed areas, with judicious pesticide and herbicide management; minimization of instream activity; and litter/debris control. Wetlands impacts will be minimized to fullest extent practicable during preliminary design. Compensatory Mitigation Compensatory mitigation is not normally considered until anticipated impacts to waters of the United States have been avoided and minimized to the maximum extent possible. Appropriate and practicable compensatory mitigation is required for unavoidable adverse impacts which remain after all appropriate and practicable minimization has been required. Compensatory actions often include restoration, creation and enhancement of waters of the United States. Actions should be undertaken in areas adjacent to or contiguous to the discharge site. The Environmental Protection Agency (EPA) has established general mitigation guidelines for restoration, creation, enhancement, or preservation at 2:1, 3:1, 4:1 4-49 LJ a and 10:1 respectively. Enhancement and/or restoration of existing, possibly degraded tl wetlands is usually preferable to creation of new wetlands. Compensatory mitigation, with a goal of wetland restoration, is a mitigation opportunity on pocosin wetlands that have been converted to pine plantations. This project presents the possibility for achieving such restoration given that all three alternative corridors encompass m areas of pine plantation that were originally pocosin. As shown in Table 4.7.5, Alternatives A and B include 4.3 hectares (10.6 acres) and 3.4 hectares (8.4 acres) of such plantation, respectively. Restoration of longleaf pine and initiation of controlled understory burning would make a desirable difference in these areas and also encourage protected plant species and rare vegetation communities. Other prior converted lands exist proximal to this project and present a number of viable options for compensatory mitigation. These areas are within the conservation zone designated by the Brunswick County Land Use Plan. NCDOT will conduct a search for a suitable site for creating or restoring marsh in the project area. If a suitable site is not found, adjacent areas will be examined. If still unsuccessful, out-of kind mitigation or other mitigation scenarios, such as preservation, will be explored. Mitigation plans will be coordinated with USACOE, DEM, USFWS, WRC, and CAMA. 4.7.4 Rare and Protected Species Federally-Protected Species Table 4.7.7 presents the biological conclusions for species federally listed as endangered or threatened in Brunswick County, North Carolina. For ten of the fifteen species currently listed, conclusions of no effect were determined based on the lack of habitat for nesting, roosting or foraging in the project area. j 4-50 It is reasonable to conclude that the project would not affect any of the marine turtle species federally listed for Brunswick County. Although marine turtles might enter the Intracoastal Waterway or even Davis Canal, construction activity would not adversely affect them. Their more likely use of the beach for nesting would not bring them into the project area. Likewise, the piping plover uses beach habitat and would not be affected by the project. While building a road through the study area would decrease the area's marginal utility as cougar habitat, it is extremely unlikely that a cougar would find its way to this area. Sea beach amaranth, shortnose sturgeon, and wood stork habitat is not available in the project area, so no effect would occur. Likewise, as roosting habitat for the bald eagle does not occur in the project area, impact to this species is not anticipated. The peregi•in falcon does not spend an appreciable amount of time in this area, therefore impacts to the species are not expected to occur. The U.S. Fish and Wildlife Service has developed recommendations for general construction activities in aquatic areas which may be used by the manatee. The manatee is generally considered a seasonal inhabitant of North Carolina with reported occurrences being greatest during the months of June through October. The Service prefers that in-water construction be scheduled during the seven month period of November through May. However, the Service believes that the implementation of the following recommendations will allow major, in-water construction projects which do not require blasting to proceed without adverse impacts to manatees. While most conditions must be implemented throughout the year, other requirements may be implemented only during the period when manatees are most likely to be in North Carolina waters, currently considered to be the months of June through October. 4-51 I TABLE 4.7.7 BIOLOGICAL CONCLUSIONS CONCERNING ' FEDERALLY PROTECTED SPECIES 11, a The conditions which should be implemented throughout the year are: 1. The project manager and/or contractor will inform all personnel associated with the project that manatees may be present in the project area, primarily during the months of June through October, and the need to avoid any harm to these endangered mammals. The project manager will ensure that all construction personnel know the general appearance of the species and their habit of moving about completely or partially submerged in shallow water. All construction personnel will be informed 4-52 2. 3 4 5. that they are responsible for observing water-related activities for the presence of manatees. The project manager and/or the contractor will advise all construction personnel that there are civil and criminal penalties for harming, harassing, or killing manatees which are protected under the Marine Mammal Protection Act of 1972 and the ESA. If a manatee is seen within 100 yards of the active construction/dredging operation or vessel movement, all appropriate precautions will be implemented to ensure protection of the manatee. These precautions will include the immediate shutdown of moving equipment if a manatee comes within 50 feet of the operational area of the equipment. Activities will not resume until the manatee has departed the project area on its own volition. Any collision with and/or injury to a manatee will be reported immediately. The report must be made to the Service's manatee coordinator in Jacksonville, Florida ((904) 232-2580), the Raleigh Field office ((919) 856-4520), and the North Carolina Wildlife Resources Commission ((919) 224-1288). The project manager should coordinate with the Service immediately prior to the start of construction for the name and current telephone number of the individuals to be contacted. A sign should be posted in all vessels associated with the project where it is clearly visible to the vessel operator. The sign should state: CAUTION: The endangered manatee may occur in these waters during the warmer months, primarily from June through October. Idle speed is required if operating this vessel in shallow water during these months. All equipment must be shut down if a 4-53 I ' manatee comes within 50 feet of operating equipment. A collision with and/or injury to a manatee will be reported immediately to U.S. Fish and Wildlife Service at (919) 856-4520 and the North Carolina Wildlife Resources Commission at (919) 224-1288. ' 6. The contractor will maintain a log detailing sightings, collisions, or injuries to manatees during project construction. After construction the project manager will prepare a report which summarizes all information on manatees during construction. ' This report will be submitted to the Service's Raleigh Field Office and NCWRC. ' The following conditions will only be required for construction during the period from June 1 through October 31, the period when manatees are most likely to be in North Carolina: 7. All vessels associated with the construction project will operate at "no wake/idle" speeds at all times while in water where the draft of the vessel provides less than a ' four-foot clearance from the bottom. All vessels will follow routes of deep water whenever possible. 8. If siltation barriers must be placed in shallow water, these barrier will be: (a) made of material in which manatees cannot become entangled; (b) secured in manner that they cannot break free and entangle manatees; and (c) regularly monitored to ensure I that manatees have not become entangled. Barriers will be placed in a manner to allow manatees entry to or exit from essential habitat. .m Habitat surveys for the remaining three species were conducted. Table 4.7.8 indicates approximately the amount of available habitat for red-cockaded woodpecker (RCW), I cooley's meadowrue, and roughleaved loosestrife in the corridors for Alternatives A, B, I4-54 and C. A survey for cooley's meadowrue, in areas of habitat, was conducted by biologists July 16- 19, 1996. All areas of habitat were surveyed plant by plant for cooley's meadowrue. No cooley's meadowrue was observed during the investigation. A review of the NC Natural Heritage Program database of rare species and unique habitats revealed no listing of cooley's meadowrue within the project area. Therefore project construction will not affect cooley's meadowrue. BIOLOGICAL CONCLUSION: NO EFFECT A survey for roughleaved loosestrife, in areas of habitat, was conducted by biologists July ' 16-19, 1996. Prior to the survey, a known population of roughleaved loosestrife was ' investigated in Brunswick County to observe its vegetative characteristics, habitat, and flowering stage. No flowers were observed within the known population. The survey for roughleaved loosestrife for the subject project included areas of habitat within the corridors. No roughleaved loosestrife was observed during this investigation. A review 4-55 1 TABLE 4.7.8 AVAILABLE SUITABLE HABITAT FOR PROTECTED SPECIES ALTERNATIVE CORRIDORS t of the NC Natural Heritage Program database of rare species and unique habitats revealed no listing of roughleaved loosestrife within the project area. 1 However, a population of roughleaved loosestrife was discovered by biologists on July 17, ' 1996, within a utility right-of-way in the southern portion of the project. This population was estimated to be approximately 15 m (50 ft) wide and 24 to (80 ft) long. The population ' is located 229 m (750 ft) east of Alternative B, which is well outside the proposed right-of- way for this alternative. The NC Natural Heritage Program was notified of the location and size of this population of roughleaved loosestrife. Since no roughleaved loosestrife was ' observed within the corridors, it can be concluded that project construction will not affect roughleaved loosestrife. BIOLOGICAL CONCLUSION: NO EFFECT ' On August 16 and 19, 1996 a survey was conducted to determine whether red-cockaded 1 woodpecker colonies exist in the study area within one-half mile of Alternative B and Alternative C. A search of Alternative A was conducted on September 18, 1996. Procedures generally followed those outlined by Henry (1989) with the addition of a helicopter to facilitate the search through difficult cover. Start holes in two locations, and one active or recently active cavity were found. Two a loblolly pine trees located about 300 meters (1000 feet) north of the dredge spoil bank in the southern portion of Alternative B contained start holes. One contained three holes on the westerly side of the bole, the other contained two holes. Both trees are about 18 inches in diameter at breast height (dbh). The active or recently active cavity is located in a flat- topped longleaf pine tree of about 16 inches dbh in Alternative C, near Ashpole Swamp. No colony trees or start holes were observed in or surrounding Alternative A. m 4-56 All trees identified from the air were visited and their conditions were confirmed on October 5 and 6, 1996. In addition to the trees identified from the air, one possible start hole tree was located in Alternative C and a number of probable historically occupied but now dead standing cavity trees were observed. The accumulated evidence suggests ongoing activity south and east of Alternative C, but the precise level of activity remains unknown. The project as proposed is "Not Likely to Adversely Affect" (NLAA) red-cockaded woodpeckers because sufficient suitable habitat exists pre-project and will remain post- project. This conclusion was derived using procedures detailed by Henry (1989) for calculating available RCW habitat. The summary table below presents the final values relevant to the two cluster sites of woodpecker activity discovered during aerial surveys and confirmed with subsequent ground truthing. Calculations for available habitat were based on aerial photo analysis, ground based knowledge of the project study area, and standard yield tables appropriate for the sites in question. The values shown in Table 4.7.9 exceed the baseline requirement of 8,490 square feet of total base area and 6,350 pine stems greater than 10 inches dbh (Henry 1989). The calculations and resulting values demonstrate that the requirements for an NLAA biological conclusion are met. At least 50 acres greater than 60 years of age with 70 square feet of pine basal area and at least 24 trees greater than 10 inches in dbh are available to each colony, and more than 125 acres of pine exist contiguous with each colony site. BIOLOGICAL CONCLUSION: NOT LIKELY TO ADVERSELY AFFECT 4-57 I 1 1 i 11 .1 I I iA TABLE 4.7.9 AVAILABLE RED-COCKADED WOODPECKER HABITAT SITE PRE-PROJECT CONDITIONS POST-PROJECT CONDITIONS In Alternative B 8.3 Acres of Habitat Removed 39,570 ft2 of Total Basal Area 38,506 ft2 of Total Basal Area 21,031 Pine Stems Greater Than 20,352 Pine Stems Greater Than 10 Inches dbh 10 Inches dbh In Alternative C 12 Acres of Habitat Removed 50,015 ft' of Total Basal Area 48,646 fta of Total Basal Area 28,383 Pine Stems Greater Than 27,552 Pine Stems Greater Than 10 Inches dbh 10 Inches dbh State-Protected Species A number of species listed for protection by the state of North Carolina, but currently not listed and not being considered for federal listing, may occur in the corridors. The only animal in this group, the Eastern woodrat, prefers deciduous lowland forests and swamps. Pinebarren smokegrass occurs in sandy, dry areas which would be impacted in all three alternatives. Savannah indigo bush occurs in coastal fringe sandhill and associated habitats, which mostly occur in Alternative C. Four species (Carolina grasswort, Golden crest, Yellow fringeless orchid, Snowy orchid) grown pine savannas, which occur in both Alternatives B and C. Of these four, Golden crest especially occurs in pine savannas with sparse longleaf canopy, a community particularly evident in Alternative C. No surveys will be conducted for state listed species not listed as threatened or endangered by the U.S. Fish I and Wildlife Service. it ?m Species Considered for Federal Listing as Endangered or Threatened Table 3.7.4 presents the list of federal species of concern and their habitat availability within the three bridge alternatives. As is the case with the federally protected species, Alternative C provides the highest quality habitat for most of these species and Alternative A provides 4-58 the least. Surveys are not required for federal species of concern and none were conducted. 4.7.5 Natural Areas Alternatives A, B, and C would cross the Longleaf Rim unit of "The Boiling Spring Lakes Wetland Complex". Therefore, the natural features leading to the interest in preserving this unit would be eliminated within the right-of-way of Alternatives A, B, and C. However, no impacts to any legally defined natural area or preserve would be incurred. Moreover, none of the alternatives would eliminate the potential for extensive areas outside the right-of-way to be preserved or designated as a natural area. 4.8 VISUAL IMPACTS The introduction of any new roadway facility in an area alters the local perception of the visual environment. The effect that a roadway project would have on an area depends on the activities, exposure, and sensitivity of the viewers. Within the study area, critical and sensitive visual locations would consist of the Intracoastal Waterway and residential areas located at each end of the build alternatives. The area surrounding the project is characterized by extremely flat topography, little relief, a mid size forest canopy and broad, open vistas dominated by the sky. Vegetation consists of pine plantations, savannas and various shrubs typically associated with southeastern North Carolina. The Intracoastal Waterway is a predominant feature that crosses through the central portion of the study area and is bordered by a dredge spoil known as Yellow Banks on the mainland side and by residential development on the island side. Because each of the alternatives are on new location, much of the mainland study area is undeveloped. On Oak Island most of the study area consists of residential development, 1 4-59 ' although there exists several businesses within the immediate project vicinity. Future land ' use plans for Oak Island indicate the development of the entire island. The Second Bridge to Oak Island is being planned as an arterial roadway. As such, the vertical alignment of the roadway would follow the contour of the land to the extent practical, with exception of ' the bridge crossing over the Intracoastal Waterway, and would meet existing intersecting streets at-grade. With this as the setting, the impact of the new roadway on the visual ' environment from existing residential areas would be minimal. A facility of this nature would result in the creation of views from the structure. Visual ' quality would be enhanced or improved for those using the facility. It would create a large vista because of its elevation over the Intracoastal Waterway. Also, a view would be created for the user of the waterway, approaching in a boat from either direction. The new crossing of the waterway would impact the viewing experience from the waterway. ' Measures to minimize visual impacts will be taken into consideration during design of the roadway and bridge. Overall, visual impacts may be mitigated through landscaping and natural revegetation of the fill slopes. 4.9 CONSTRUCTION IMPACTS A Impacts during the construction of this project are expected to be similar to those associated with any major roadway construction. Before construction is started, a preconstruction conference involving the contractor, local officials, utility companies and the Division of a Highways will be held to discuss various construction procedures. It will include a discussion of precautionary steps to be taken during the time of construction to minimize construction impacts. In addition, notification of the NC Geodetic Survey will take place prior to construction. Any affected markers will be relocated prior to construction. 4-60 I? The following sections present general discussions of the principal short-term construction impacts associated with the Second Bridge to Oak Island. 4.9.1 Air Quality During construction of the proposed project, all materials resulting from clearing and grubbing, demolition or other operations will be removed from the project, burned or otherwise disposed of by the Contractor. Any burning will be done in accordance with applicable local laws and ordinances and regulations of the North Carolina SIP for air quality in compliance with 15 NCAC 2D.0520. Care will be taken to insure burning will be done at the greatest distance practicable from dwellings, and not when atmospheric conditions are such as to create a hazard to the public. Burning will be performed under constant surveillance. Measures will be taken in allaying the dust generated by construction when the control of dust is necessary for the protection and comfort of motorists or area residents. 4.9.2 Noise The major construction elements of this project are expected to be earth removal, hauling, grading and paving. General construction noise impacts, such as temporary speech interference for passersby and those individuals living and working near the project, can be expected particularly from earth moving equipment during grading operations. However, considering construction noise is relatively short in duration and generally restricted to daytime hours, these impacts are not expected to be substantial. The transmission loss characteristic of nearby structures and vegetation are believed to be sufficient to moderate the effects of intrusive construction noise. 4-61 I 1 4.9.3 Water Ouality r Roadway construction activities may have some temporary impacts on water quality within the study area. Erosion of soils is the most critical water quality impact during construction. The amount of erosion varies depending upon the size of the construction limits, roadway vertical grades, roadway cut and fill slopes, and the effectiveness of the installed erosion control devices. The project area is relatively flat, and therefore, it should not be difficult I I to control erosion if the proper measures are utilized. I Impacts to the water quality will be minimized through the use of NCDOT's "Best Management Practices for the Protection of Surface Waters" (BMPs). An erosion control ?j plan will be developed prior to the initiation of construction. The plan will incorporate the 11 requirements of the North Carolina Sedimentation Pollution Control Act of 1973, and the BMPs to control non-point source impacts from new highway projects. Temporary and permanent erosion and sedimentation control measures would be utilized throughout the a project to prevent off-site sedimentation of adjacent streams and properties. 4.9.4 Maintenance of Traffic During construction, all local and through traffic would be adequately and safely accommodated. All construction operations would be scheduled to keep traffic delay minimized, and the contractor would conform to the standards of the "Manual of Uniform Traffic Control Devices for Streets and Highways." Construction would be performed to comply with all federal, state, and local laws governing safety, health, and sanitation. Procedures would apply all safeguards, safety devices, protective equipment, and any other needed action reasonably necessary to protect the life and health of employees on the job, the safety of the public, and property in connection with 4-62 the performance of the work. The following items would be provided, where necessary, for the maintenance of traffic and public safety: • Constructing and maintaining temporary detours, temporary structures, temporary approaches, crossings, and intersections with streets and roads, as well as using aggregates for maintenance of traffic and water for use as a dust palliative. • Furnishing flaggers, pilot trucks and drivers. • Furnishing, erecting, and maintaining warning devices such as signs, auxiliary barriers, channelizing devices, hazard warning lights, barricades, flares, and reflective markers. If any street must be closed to traffic, traffic control devices would be illuminated or reflectorized during hours of darkness. 4.9.5 Construction Materials and Waste Precautions will be taken to prevent contamination of any watersheds or streams by improper disposal and storage of materials, wastes, and accidental spillage of fuels or other harmful substances during construction. NCDOT "Standard Specifications for Roads and Structures" and "Best Management Practices for Protection of Surface Waters" require the contractor to exercise every reasonable precaution throughout construction of the project to prevent pollution of rivers, streams, and water impoundments. Pollutants such as chemicals, fuels, lubricants, bitumens, raw sewage, and other harmful wastes will not be discharged into or alongside rivers, streams or impoundments, or into natural or man-made channels emptying into such receiving waters. Excavated material would not be stockpiled or disposed of adjacent to or in areas where they may runoff with stormwater into streams and impoundments. Where it is absolutely necessary to store materials adjacent to streams, they will be stored above the mean 4-63 ' highwater mark in such a manner that they would not runoff with stormwater. Disposal of 1 waste and debris will not be allowed in areas under the Corps of Engineers regulating jurisdiction unless the Contractor has obtained a permit from the Corps' District Engineer. Unintended soil movement by sliding and washing is another potential construction-related impact. It is impossible to dig and move soil without having some unintended soil movement, especially in areas immediately adjacent to and in active drainages. The amount of accelerated erosion is directly related to the amount of steep topography, the number of perennial stream crossings, and the length of construction time. Erosion is always undesirable since the most fertile soil, the topsoil, is usually lost. Furthermore, sediments A reaching streams are deleterious to aquatic life because they block sunlight and smother organisms living in the stream bed. The amount of sediment loss is inversely related to sediment control efforts during construction. Accelerated erosion can be limited and n' temporary, provided proper sediment control is maintained during construction. u No borrow sites will be allowed in areas under the Corps of Engineers regulatory jurisdiction unless the contractor has obtained a permit from the Corps District Engineer. Any borrow n pits and all ditches will be constructed to drain to alleviate breeding areas for mosquitoes U unless constructed to remain as ponds. Care will be taken not to block existing drainage O ditches. Solid wastes will be disposed of in strict adherence to the NCDOT Standard Specifications and Best Management Practices. The contractor will be required to observe and comply with all laws, ordinances, regulations, orders, and decrees regarding the disposal of solid waste. IIM Solid waste will not be placed in any land disposal site which is in violation of state rules and regulations. 4-64 If any structures are to be removed or demolished, an extensive rodent control program will be implemented, if needed, to prevent the migration of rodents into surrounding areas The contractor is required by NCDOT Standards and Specifications to provide sanitary facilities for use by his employees during construction of the project. Where bridges or drainage culverts are to be installed, no construction materials and wastes are to be discharged into the stream. Upon completion of construction, materials from foundations or other excavations would be removed. Any underground storage tanks abandoned within the right-of-way will be permanently abandoned in accordance with 40 CFR 280.72 after notifying the Department of Environment, Health, and Natural Resources regional office. 4.10 RELATIONSHIP BETWEEN LOCAL SHORT-TERM USES OF MAN'S ENVIRONMENT AND THE MAINTENANCE AND ENHANCEMENT OF LONG-TERM PRODUCTIVITY This section identifies the relationship between those aspects of man's environment that will be used to accomplish this project and how those aspects relate to the long-term productivity of the area. The most disruptive impacts associated with the Second Bridge to Oak Island will occur during project construction. However, those impacts will affect only those areas within or in close proximity to the proposed project right-of-way. Existing residences, farms, and businesses within the right-of-way will be displaced. How- 4-65 I ' ever, adequate replacement housing, land, and space are available for homeowners and tenants within the study area. Improved mobility and access to and from Oak Island may j? stimulate economic and business growth and viability as well as long-term residential interest. During construction, some nearby residents and businesses, not directly impacted by right-of- way acquisition, will be affected by heavy equipment use, noise, dirt, dust, and temporarily ' disruptive traffic patterns. The implementation of the Best Management Practices during construction will help minimize these impacts. 1 Other short-term impacts, such as erosion and siltation of local tributaries may occur. However, with the previously described erosion control measures, the siltation is not 1 anticipated to adversely affect the environment. Natural resource impacts would consist of the destruction of vegetation and biotic communities within the right-of-way and at staging areas, and the permanent displacement ' of wildlife species. However, the project presents no long-term threat to the survival of any species within the study area. The proposed project is vital to the regional transportation system. The Second Bridge to Oak Island is a key feature of the economic development efforts within the region and state. The Second Bridge would facilitate the movements of commuters, tourists and commodities to and from the area. A new transportation facility could directly contribute to new economic activity and could broaden the employment base and tourism in Brunswick County. The major benefits of the proposed action that would enhance the long-term productivity of 1 4-66 the area include: • Reduction in vehicle operating costs, • Reduction in accident rates and costs, • Improvement in emergency services, • Enhancement of planned and controlled growth, • Reduction in energy consumption through improved travel, and • Improvement in emergency evacuation routes. 4.11 IRREVERSIBLE AND IRRETRIEVABLE COMMITMENTS OF RESOURCES WHICH WOULD BE INVOLVED IN THE PROPOSED ACTION Construction of the Second Bridge to Oak Island would require certain irreversible and irretrievable commitments of natural and human resources, as with any new roadway project. The acquisition of additional land for right of way is considered an irreversible commitment since it would be converted from its present use to transportation use. The additional land acquired for the proposed project would no longer serve the natural environment and, therefore, an irretrievable commitment would be made. Businesses, residences, and biotic communities in the path of construction would be permanently lost. Acoustic noise within close proximity of the new roadway would increase. The materials used for construction and the energy consumed during construction, along with the manhours required, are considered to be both irreversible and irretrievable. Construction of the proposed project would also commit the State to provide operating, maintenance, and repair costs throughout the life of the highway. Construction of the Second Bridge project would add a critical segment to the previously committed long-range transportation system for the region. The project is consistent with 4-67 i the long-range transportation goals and objectives of the NCDOT Transportation Improvement Program. The commitment of these resources for the construction of the Second Bridge project would ' benefit local residents and the State by providing improved level of traffic service and contributing to regional goals to enhance economic opportunities. These benefits would ( consist of improved accessibility and safety, reduced travel times, reductions in fuel consumption, and greater availability of quality services, which are anticipated to outweigh I the necessary commitment of resources. In summary, the irretrievable commitment of resources caused by the Second Bridge to Oak 1 Island is balanced by the anticipated beneficial effects. The project is consistent with the ' state and community goals of improving local and regional transportation service and strengthening the area's economic base. A summary and comparison of engineering considerations and environmental consequences for the reasonable and feasible alternatives is shown in Table 4.11.1. I '! 1 1 4-68 TABLE 4.11.1 ENGINEERING AND ENVIRONMENTAL CONSEQUENCES IMPACT A ALTERNATIVES B C Length - km(miles) 9.39 (5.83) 7.55 (4.69) 8.27 (5.14) Bridge Structures 2 2 2 Major Drainage Structures (1200mm (48") or larger) 3 0 1 Traffic Volumes (Year 2020 Summer Peak/Off-Peak) 13,700/9,600 13,700/9,600 13,700/9,600 Level of Service Summer Peak Off-Peak LOS D LOS D LOS D LOS D LOS D LOS D Construction Cost Roadway Structures $9,813,000 $3,487,000 $8,813,000 $3,487,000 $9,113,000 $3,487,000 Right-of-Way Cost $4,225,000 $3,675,000 $3,950,000 Total Cost $17,525,000 $15,975,000 $16,550,000 Relocations Residences Businesses Total 10 I I1 10 I 11 10 I 11 Traffic Noise Impacts 62 60 60 Defined Stream Crossings 4 0 1 Floodplain Encroachment - Hectares (Acres) 0 (0) 0 (0) 0 (0) Prime, Unique, Statewide & Local Important Farmlands Hectares (Acres) 8 (22) 7 (18) 6 (14) Wetlands - Hectares (Acres) 2.9 (7.2) 4.0 (9.9) 2.6 (6.4) Historic Architectural Sites 0 0 0 Archaeological Sites (Known) 0 0 0 Hazardous Material Sites/USTs 1 2 2 4-69 5.0 COMMENTS AND COORDINATION It 5.1 AGENCY COORDINATION 5.1.1 Scoping Letter A Scoping Letter requesting participation in the study and soliciting comments was sent in January 1995 to the following agencies: I US Army Corps of Engineers ? • Department of Interior Environmental Protection Agency f • US Fish and Wildlife Service National Marine Fisheries Service • U.S. Coast Guard • Federal Emergency Management Administration • NC Department of Administration Q • NC Department of Cultural Resources, Division of Archives and History • NC Department of Environment, Health and Natural Resources - Division of Environmental Management - Wildlife Resources Commission • NC Department of Public Instruction • Town of Long Beach • • Town of Caswell Beach Town of Yaupon Beach • Brunswick County Commissioners ' • Cape Fear Council of Governments Written comments received from each agency are included in Appendix A. An interagency ' scoping meeting was held on February 15, 1995 with a follow-up meeting held on March 8, 1995. 1 5.1.2 Steering Committee In order to ensure cooperation and coordination during the study process, a Steering ' Committee under the leadership of the North Carolina Department of Transportation was formed at the initiation of the study. Committee members provided assistance, comments, ' information and review to ensure compatibility with local, state and federal planning projects and objectives. Committee members met periodically and were represented by the following agencies: ' North Carolina Department of Transportation 5-1 • Federal Highway Administration • Town Manager of Long Beach • Brunswick County Planning Director • US Army Corps of Engineers (USACOE) • NC Department of Environment, Health and Natural Resources - Division of Environmental Management (DEM) Division of Coastal Management (CAMA) Wildlife Resources Commission (WRC) • Natural Heritage Program • National Marine Fisheries • US Fish and Wildlife Service Steering Committee Meetings were held on May 10, 1995 and January 24, 1996. 5.1.3 Agency Field Review On May 30, 1995 a meeting at the project site was held. At the Steering Committee Meeting on May 10, 1995 it was determined that a field meeting would be beneficial to better understand the project study area, especially the natural resource and wetland concerns. The project team met on site with representatives from USACOE, DEM, WRC, the Natural Heritage Program and the Town of Long Beach. As a result of the field review, several recommendations were made by way of letter to the members of the steering committee who were not present at the field review. It was recommended that, because of their similar characteristics, preliminary alternative corridors C101 and C102 be combined into one alternative using the best segments of each and that ' preliminary alternatives C301 and C306 be eliminated from further consideration because of higher impacts to the environment. All the members of the Steering Committee concurred with these recommendations. 5.2 PUBLIC INVOLVEMENT I In February 1995, a Public Involvement Plan was developed to ensure maximum public 5-2 1 I participation in the Second Bridge to Oak Island Corridor Study and Environmental Document. The major components identified in the plan were as follows: • Mailing List • Newsletters >< • Toll-Free Phone Hotline • Area Newspaper Monitoring • Small Group Informational Meetings • Local Officials Informational Meetings • Citizens Informational Workshops • Public Hearing • Steering Committee • Scoping Letter • Agency Coordination 1 t 5.2.1 Mailing List ' A computerized mailing list consisting of local officials, civic and business groups, governmental agencies and interested persons was initiated at the beginning of the study and continually updated throughout the study process. The mailing list was used to notify the public of the project events, as well as dates, times and locations of the Citizens Informational Workshops. The mailing list contains 260 names. 5.2.2 Newsletters Two newsletters were prepared during the study and mailed to persons on the mailing list. The newsletters contained information about the study process, the toll-free hotline number and the date of the next Citizens Informational Workshop. Copies of the newsletters are ' contained in Appendix A. 1 5-3 5.2.3 Toll-Free Phone Hotline A toll-free phone number was published in each newsletter, displayed at each workshop and made available to local organizations and agencies. Responses to questions and comments were provided either immediately or within two business days. 5.2.4 Small Group Informational Meetings The project team was available throughout the study process for presentations to neighborhood organizations, civic groups and local organizations. The public was informed of the team's availability for meetings through the newsletters and workshops. During the study process two small group meetings were requested. The NC Division of Emergency Management - Department of Crime Control and Public Safety invited members of the project team to give a presentation on the Second Bridge to Oak Island project at the Public Officials Conference. The conference was held on April 18, 1996 at the Brunswick Nuclear Plant. It was sponsored by the State of North Carolina, Brunswick County, New Hanover County, and CP&L. Over 100 people were in attendance from the sponsors and area municipalities. A 15 minute presentation of the project description, history, status, planning process, alternatives and evaluation factors was given. Displays presented the three detailed study alternatives and other project information. The Mayor of Long Beach requested a presentation for the local Rotary Club. On June 19, 1996 representatives of the project team made a presentation and answered questions for the Rotary Club members at the Sandfiddler Restaurant in Southport, North Carolina. 5.2.5 Citizens Informational Workshops Two Citizens Informational Workshops were held during the study process. A brief 5-4 I summary of the workshops is provided as follows: The First Citizens Informational Workshop was held on March 23, 1995 from 4:00 to 7:00 pm, at the Town of Long Beach Recreational Center. The Local Officials Informational Meeting was held earlier the same day. The sign in sheet included 146 names. A total of 64 written comments were received during the workshop or mailed in following the j. workshop. Displays available for review included mapping showing environmental constraints such as wetland areas and six preliminary alternatives. Also, exhibits showing descriptions of the planning process, evaluation factors overview and proposed typical ' sections were available. Verbal comments received during the workshop were overwhelmingly in favor of the project and mainly centered around the time factors involved in construction. The written comments are summarized below: 1 Of the 64 written comments received during and after the workshop, 55 comments were in favor of the project and 9 were against. • The need for an evacuation route off the island in the event of a disaster such as a hurricane or a nuclear accident at the Brunswick Nuclear Plant were of prime importance to those that favored the new bridge. • Travel time to surrounding areas would be reduced for some residents of the island and this was a favorable consideration. • Some comments indicated a reluctance to change the nature of the island which is primarily that of a quiet, family-oriented community with no major development. • The potential disruption of wetlands and natural habitats was an issue with some 1 respondents. • Most felt that improved safety, increased traffic capacity, and improved access to Oak ?. Island were the most important factors of consideration. 1 5-5 The Second Citizens Informational Workshop was held on November 28, 1995 from 4:00 to 7:00 pm at the Long Beach Recreational Center with 80 people signing in. A Local Officials Informational Meeting was also held earlier in the afternoon. The three preliminary alternatives were presented. The majority of comments were in favor of the bridge. Most people stated that they would like to see it built as soon as possible for reasons of reduction in travel time and safety in the event of a hurricane or nuclear disaster. Nineteen comment sheets were received during the meeting. A summary of the comments follows: Build which ever alternative would expedite construction of the project. The bridge is needed as soon as possible. Either Alternative A or B would be acceptable. Alternative C is preferable because this route would be less expensive to construct than B and shorter than A. Alternative B is the most direct route. The road should turn west after crossing the Atlantic Intracoastal Waterway and connect with the Sunset Harbor Road. Alternative A appears to conserve wetlands. Alternative A is in the proximity of land the town owns as a potential site for a wastewater disposal plant. Whichever route provides the least disturbance to the wetlands and other geographic features. The bridge is not necessary for development purposes. Alternative B is the most direct route. However, if the environmental impact due to wetlands will slow the project then use the route that will impact the least wetlands. Opposed to the building of the second bridge. Alternative A would be on higher land much of the way, avoiding some of the wetlands and pocosins. 5-6 I 1 5.2.6 Local Officials Informational Workshops 1 Prior to each Citizens Informational Workshop, a brief project summary and update was given to the local officials. The presentations focused on the information to be presented at the workshop, the study process and the current project schedule. I I I I 1 I' 11 5-7 I I I 1 APPENDIX A COORDINATION I I A Ll I 1 I I I i I I I I I I i lJ APPENDIX A A.1 - AGENCY COMMENTS I I AGENCY COMMENTS Stat e/Federal Agencies Commenting: 1. North Carolina Department of Environment, Health and Natural Resources (DEHNR), Division of Environmental Health, Public Water Supply Section - February 1, 1995 2. DEHNR, Division of Land Resources - February 1, 1995 3. Federal Emergency Management - February 6, 1995 4. DEHNR, Division of Parks and Recreation - February 13, 1995 5. United States Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries - February 17, 1995 6. DEHNR, Division of Environmental Management - February 21, 1995 7. DEHNR, Wildlife Resources Commission - February 21, 1995 8. North Carolina Department of Cultural Resources - February 23, 1995 9. 10. United States Coast Guard - February 23, 1995 DEHNR, Natural Heritage Program - May 31, 1995 11. DEHNR, Division of Environmental Management - June 1, 1995 12. DEHNR, Division of Parks and Recreation - June 12, 1995 13. DEHNR, Wildlife Resources Commission - June 14, 1995 14. DEHNR, Legislative & Intergovernmental Affairs - June 19, 1995 15. United States Army Corps of Engineers - March 6, 1996 r 16. North Carolina Department of Cultural Resources - July 24, 1996 17. United States Department of Transportation, Federal Highway Administration - July 29, 1996 18. United States Environmental Protection Agency - August 20, 1996 19. United States Department of Interior, Fish and Wildlife Service - November 21, 1996 20. United States Army Corps of Engineers - February 5, 1997 Local Governments Commenting: 1 2 3 4 5 6 1 I I Town of Long Beach - February 23, 1995 Town of Caswell Beach - February 20, 1995 Town of Yaupon Beach - February 28, 1995 Town of Long Beach - August 1, 1995 Town of Long Beach - February 5, 1996 Town of Long Beach - July 15, 1996 I State of North Carolina Department of Environment, Health and Natural Resources • • Division of Environmental Health r Public Water Supply Section - - - 1 rrr ?Iw¦?? 1 _ James B. Hunt, Jr., Governor C) E H N F11' Jonathan B. Howes, Secretary Clearinghouse Project No. 95.0512 Brunswick Count) February 1, 1995 It appears from the map (provided with the description of the proposed project), that extending SRI 190 west to join SRI 112 (in the vicinity of Sunset Harbor) would involve a route about half the length of the proposed project route. This should be considered as an alternative to the proposed project in the environmental impact statement. Paul B. Clark Environmental Engineer Water Quality Compliance Branch Public Water Supply Section ?.` Division of Environmental Health Department of Environmental Health and Natural Resources I I P.O. Box 29536, Raleigh. North Carolina 27626-0536 Telephone 919.733-2321 FAX 919-715-3242 An EoUal opportunity Affirmative Action Employer 50% recycled/ 10%post-consumer paper L I I I 1 .r Ra State of North Carolina Department of Environment, Health, and N Division of Land Resources RECEIVED DEHNR tl Res ur'? 1995 James G. Martin, Governor PROJECT REVIEW COMMENTS LAND QU A1uj Wiliam W. Cobey, Jr., secretary ? Director Project Number: _ S -0 5-1 ? Count Project Name: 2 Geodetic Survey -LL This project will impact S geodetic survey markers. N.C. Geodetic Survey should be contacted prior to construction at P.O. Box' 27687, ,Raleigh, N.C. 27611 (919) 733-3836. Intentional destruction of a geodetic monument is a violation of N.C. General Statute 102-4. This project will have no impact on geodetic survey markers. Other (comments attached) I I For more information contact the Geodetic Survey office at (919) 733-3836. Reviewer Erosion and Sedimentation Control r No comment Date This projeclit will require approval of an erosion and sedimentation control plan prior to beginning any land-disturbing activity if more than one (1) acre will be disturbed. If an environmental document is required to satisfy Environmental Policy Act (SEPA) requirements, the document must be submitted as part of the erosion and sedimentation control plan. kl'? If any portion of the project is located within a High Quality Water Zone (HQW), as classified by the Division of Environmental Management, increased design standards for sediment and erosion control will apply. t , V The erosion and sedimentation control plan required for this project should be prepared by the Department of Transportation under the erosion control program delegation to the Division of Highways from the North Carolina Sedimentation Control Commission. . Other (comments attached) For more information contact the Land Quality Section at (919) 733-4574. Reviewer Date ' P.O. Box 27687 - Melgh. N.C. 27611-7687 -'Telephone (919) 733-3833 An Equal Opportunity Affirmadve Action Employer Slate of North Carolina Department of Environment, Health, and Natural Resources INTERGOVERNMENTAL REVIEW - PROJECT COMMENTS Reviewing Office: Number: I Due DD .nom f,1. Alter review of this project it has been determined that the EHNR permit(s) and/or approvals indicated may need to be obtained in ' order for this project to comply with North Carolina Law. Questions regarding these permits should be addressed to the Regional Office indicated on the reverse of the form. All applications, information and guidelines relative to these plans and permits are available from the same Regional Office. Normal Process Time PERMITS SPECIAL APPLICATION PROCEDURES or REQUIREMENTS (statutory time U limit) ? Permit to construct & operate wastewater treatment Application 90 days before begin construction or award of 30 days facilities, sewer system extensions, & sewer construction contracts On-site inspection. Post application U systems not discharging into state surface waters. technical conference usual (90 days) NPDES permit to discharge into surface water and/or Application 180 days before begin activity. On site inspection. 90120 days permit to operate and construct wastewater facilities discharging into state surface waters. Pre-application conference usual. Additionally. obtain permit to construct wastewater treatment facility granted after NPDES. Reply (NIA) time. 30 days after receipt of plans or issue of NPDES permit-whichever is later. Water Use Permit Pre-application technical conference usually necessary 30 days INIA7 7 days Well Construction Permit Complete application must be received and permit issued prior to the installation of a well. (15 days) Application copy must be served on each adjacent riparian property 55 days Dredge and Fill Permit owner. On-site inspection. Pre-application conference usual. Filling may require Easement to Fill from N.C. Department of (90 clays) Administration and Federal Dredge and Fill Permit. Permit to construct & operate Air Pollution Abatement 60 days facilities and/or Emission Sources as per 15A NCAC 21 KO6 N/A (90 days) open burning associated with subject proposal lp< must be in compliance with 15A NCAC 2D.0520. Demolition or renovations of structures containing asbestos material must be in compliance with 15A 60 days NCAC 20.0525 which requires notification and removal N/A prior to demolition. Contact Asbestos Control Group 919-733-0820. (90 days) Complex Source Permit required under 15A NCAC 2D.0800. The Sedimentation Pollution Control Act of 1973 must be properly addressed for any land disturbing activity. An erosion & sedimentatio control plan will be required if one or more acres to be disturbed. Plan filed with proper Regional Office (Land Duality Sect.) at least 30 20 days days before beginning activity. A fee of $30 for the first acre and $20.00 for each additional acre or art must accompany the plan. 130 da sl The Sedimentation Pollution Control Act of 1973 must be addressed with respect to the referrenced Local Ordinance: (30 days) Mining Permit On-site inspection usual. Surety bond filed with EHNR. Bond amount varies with type mine and number of acres of affected land. Any area 30 days mined greater than one acre must be permited. The appropriate bond (60 days) must be received before the permit can be issued. North Carolina Burning permit On-site inspection by N.C. Division Forest Resources it permit 1 day exceeds 4 days (N/A) ? Special Ground Clearance Burning Permit - 22 On-site inspection by N.D. Division Forest Resources required "if more I day counties in coastal N.C. with organic soils than live acres of ground clearing activities are involved. Inspections (N/A) should be requested at least ten days before actual burn is planned." ? IA 90-120 days (NIA) Oil Refining Facilities N It permit required. application 60 days before begin construction. Applicant must hue N.C. qualified engineer lo: prepare plans. 30 days ? Dam Safety Permit inspect construction, certify construction is according to EHNR approv ed plans. May also require permit under mosquito control program. And a 404 permit from Corps of Engineers. An inspection of site is neces. (60 days) sary to verity Hazard Classification. A minimum fee of $200.00 must ac company the application. An additional processing fee based on a percentage or the total project cost will be required upon completion. ,,,, Continued on reverse Normal Process Time (Statutory time PERMITS SPECIAL APPLICATION PROCEDURES or REQUIREMENTS limit) File surety bond of $5,000 with EHNR running to State-of*N.C. 10 days ? Permit to drill exploratory oil or gas well conditional that any well opened by drill operator shall, upon (NIA) abandonment, be plugged according to EHNR rules and regulations. ? Geophysical Exploration Permit Application filed with EHNR at least 10 days prior to issue of permit 10 days Application by letter. No standard application form. (NIA) ? State Lakes Construction Permit Application fee based on structure size is charged. Must include 1520 days descriptions & drawings of structure & proof of ownership (NIA) of riparian property. 60 days 401 Water Quality Certification NIA (130 (Jays) ? 55 days CAMA Permit for MAJOR development $250.00 fee must accompany application (150 tlays) ? 22 days CAMA Permit for MINOR development $50.00 fee must accompany application (25 days) ? Several geodetic monuments are located in or new the project area. It any monuments need to be moved or destroyed. please notify: N.C. Geodetic Survey. Box 27687, Raleigh. N.C. 27611 ? Abandonment of any wells. if required. must be in accordance with Title 15A. Subchapter 2C.0100. ? Notification of the proper regional office is requested if 'orphan' underground storage tanks (USTS) are discovered during any excavation operation. Compliance with 15A NCAC 2H.1000 (Coastal Stormwater Rules) is required. 45 days (NIA) Other comments (attach additional pages as necessary, being certain to cite comment authority): REGIONAL OFFICES Questions regarding these permits should be addressed to the Regional Office marked below. ? Asheville Regional Office ? Fayetteville Regional Office - , 59 Woodfin Place Suite 714 Wachovia Building Asheville, NC 28801 Fayetteville. NC 28301 (704) 251.6208 ? (919) 486.1541 Mooresville Regional Office ? Raleigh Regional Office 919 North Main Street, P.O. Box 950 3800 Barrett Drive, Suite 101 Mooresville, NC 28115 Raleigh, NC 27609 (704) 663-1699 (919) 733-2314 ? Washington Regional Office ? Wilmington Regional Office 1424 Carolina Avenue - 127 Cardinal Drive Extension Washington, NC 27889 Wilmington, NC 28405 (919) 946-6481 (919) 3953900 ? Winston-Salem Regional Office 8025 North Point Blvd. Suite 100 Winston Salem, NC 27106 , (919) 8967007 'N11 ?t 1 11 11 1 1 i i 1 1 i 1 1 Federal Emergency Management Agency Region IV 1371 Peachtree Street, NE, Suite 700 Atlanta, GA 30309 February 6, 1995 Mr. H. Franklin Vick, P.E., Manager Planning and Environmental Branch N.C. Division of Highways P.O. Box 25201 Raleigh, North Carolina 27611-5201 Re: Draft Environmental Impact Statement Brunswick County, North Carolina Second Bridge to Oak Island and Approach Roads Dear Mr. Vick: 1.7 i FEB t r 1995 This is in response to the Draft Environmental Impact Statement we received January 3, 1995, for the above-referenced project. Brunswick County, North Carolina is participating in the Regular Phase of the National Flood Insurance Program (NFIP). The County has 100-year floodplain and regulatory floodways delineated; therefore, any encroachment into the floodways must be in compliance with the NFIP regulations. The agency in charge must ensure compliance with the floodplain management measures as enacted by the State of North Carolina. In this regard, it is imperative the agency coordinate closely with the appropriate staff in the Floodplain Management Section of the Division of Emergency Management. If we can be of further assistance, please contact Ms. Bel Marquez at (404) 853-4436. ncerely, 1r, Robert E. McBeth, Chief Hazard Identification and Risk Assessment Branch Mitigation Division i ' DIVISION OF PARKS AND RECREATION ' February 13, 1995 I Memorandum TO: Melba McGee II FROM: Stephen Hall S ?t SUBJECT: Scoping -- Second Bridge to Oak Island, Brunswick County REFERENCE: 95-0512 The study area for the proposed new roadway and bridge broadly overlaps a Natural Heritage Priority Area, the Boiling Springs Lakes Wetland Complex. This area is composed of several high quality natural communities, including Pond Pine Woodlands, Wet Pine Flatwoods, and Pine Savannas. Many rare plants have been recorded from this site or the immediate vicinity, including three species that are candidates for federal listing: pondspice (Litsea aestivalis), Venus flytrap (Dionaea muscipula), and spring-flowering goldenrod ' (Solidago pulchra); the goldenrod is also state listed as Endangered. Red-cockaded woodpeckers (Picoides borealis), federally and state listed as Endangered, have also been recorded from the vicinity, and several other rare animals can be expected to occur there, ' based on the presence of suitable habitat. These include several candidates for federal listing: Bachman's sparrow (Aimophila aestivalis), gopher frog (Rana capito capito), Cape Fear threetooth snail (Triodopsis soelneri), Buchholz's dart moth (Agrotis buchholzi), and the Venus flytrap cutworm moth (Hemipachnobia s. subporphyria). Based on both the direct impacts of the proposed road, as well as secondary impacts due to the development the road would foster, we strongly recommend that other alternatives be considered to crossing this currently undeveloped, environmentally sensitive area. We would particularly like to see routes considered that use existing roads as much as possible. From inspection of the map, these could include a direct connection across Pinners Point between Sunset Harbor and the western end of Oak Island, or a spur off of SR 1112 that would pass between two other Natural Heritage Priority Areas: Big Cypress Bay and Ponds and Sunset Harbor-Ash Swamp. No matter which alternative is selected, a thorough survey should be conducted by qualified biologists. In order to identify all of the rare species potentially present in this area, searches of the project corridor should be conducted in both the spring and summer. 1 `1 ??Mi OI COY ,? g+= Y': ? UNITED STATES DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration NATIONAL MARINE FISHERIES SERVIgE ' _•,...o•?' iSoutheast Regional Office 9721 Executive Center Drive North St. Petersburg, Florida 33702 ' February 17, 1995 CFE62 Mr. H. Franklin Vick, P.E Planning & Environmental Branch N.C. Department of Transportation P. O. Box 25201 Raleigh, North Carolina 27611-5201 Attention Philip Edwards Dear Mr. Vick: Please reference your January 23, 1995, letter requesting our 1 review and comments on the information provided by the North Carolina Department of Transportation (NCDOT) concerning the proposed Second Bridge to Oak Island and Approach Roads, From SR 1104 to NC 211, Brunswick County. TIP No. R-2245, State Project ' No. 8.2231201; Federal Aid No. STP-1105(6). We offer the following comments for your consideration. Oak Island, a partially developed coastal barrier island, is located between the Atlantic Ocean and the Atlantic Intracoastal Waterway (AIWW) in Brunswick County, North Carolina. The Cape ' Fear River and the Lockwood Folly Inlet are located on the west and east sides of the island, respectively. The proposed approach road and second bridge could adversely impact National Marine Fisheries Service (NMFS) trust resources since the water bodies crossed by the proposed alignment support emergent marsh and provide habitat for a variety of commercially and recreationally important fishery resources. In addition, the proposed corridor between the mainland ' side of the AIWW and NC 211 crosses a variety of freshwater and wooded swamp wetlands that support fisheries. i Traditionally, improved access to barrier islands and the associated increase in development has resulted in degraded water quality and wetland losses that are detrimental to fisheries. Therefore, we are concerned with both the direct and indirect impacts of this project and recommend that the National Environmental Policy Act (NEPA) document address the following information needs and issues: 1. The NEPA document should describe the alternative road and bridge alignments considered. This should include a discussion of how each alternative would avoid and minimize direct and indirect I losses of wetlands that support fisheries. 2. The NEPA document should describe the location and acreage of wetlands, including open water areas, potentially impacted by the proposed work. Plant communities and their associated species should be identified and the potential impacts on each community quantified. This information is vital to identifying least environmentally damaging alternatives as required by the NEPA alternatives analysis and for compliance with the Clean Water Act, Section 404(b)(1) Guidelines. 3. The NEPA document should describe the fishery resources found in the project area and provide an assessment of the impacts on these resources. This should include a discussion of the impacts of run-off from the new bridge on shellfish resources in the project vicinity, as well as, impacts to the harvesting of these resources. 4. Bridge construction often requires filling of wetlands for temporary access roads and/or excavation of access canals through wetlands. The NEPA document should address alternative bridge construction techniques, including top down construction, that will avoid wetland impacts. Also, it should address the impact on fisheries of any construction related temporary wetland losses. 5. The construction of a second bridge to Oak Island will improve access to the island and thereby stimulate additional residential and commercial growth in the beach communities. The NEPA document should address the secondary impacts of increased development. 6. If unavoidable wetland losses are necessary, the NEPA document should provide a mitigation plan to compensate for these losses. The plan should be consistent with the Mitigation Memorandum of Agreement between the U. S. Army Corps of Engineers and the U. S. Environmental Protection Agency. Unless compensation for wetland losses is incorporated as a part of the project, we will likely recommend against federal authorization for this work. 7. The NEPA document should address the potential impact on endangered and threatened species under I,1MFS purview found in the project area. Due to the possible presence of protected species, consultation with our Protected Species Management Branch, at the letterhead address, should be initiated. The North Carolina Division of Marine Fisheries and the North Carolina Wildlife Resources Commission biologists are excellent sources of information concerning specific fishery resources in the project area. We encourage the NCDOT to address project alternatives and mitigation of wetland losses early in the project planning process. i 1 i We appreciate the opportunity to provide these comments. Sincerely, Id s Mager, Jr Assistant Region Director Habitat Conservation Division cc: FWS, ATLA, GA FWS, Raleigh, NC EPA, ATLA, GA NCDEHNR, Raleigh, NC NCDEHNR, Morehead City, NC F/SE02 .State of North Carolina Department of Environment, Health and Natural Resources ' Division of Environmental Management James B. Hunt, Jr., Governor ' Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director A74 •?• ?EHNF1 February 21, 1995 TO: Melba McGee, \Leegislative & Intergovernmental Affairs FROM: Monica Swihart, Water Quality Planning SUBJECT: Project Review #95-0512; Scoping Comments - NC DOT j' Second Bridge to Oak Island and Approach Roads, from SR 1104 to NC 211, Brunswick County, TIP #R-2245 The Water Quality Section of the Division of Environmental Management requests that the following topics be discussed in the environmental documents prepared on the subject project: A. Identify the streams potentially impacted by the project. The stream classifications should be current. ' B. Identify the linear feet of stream channelizations/ relocations. If the original stream banks were vegetated, ' it is requested that the channelized/relocated stream banks be revegetated. C. Number of stream crossings. D. Will permanent spill catch basins be utilized? DEM requests that these catch basins be placed at all water supply stream ' crossings. Identify the responsible party for maintenance. E. Identify the stormwater controls (permanent and temporary) to be employed. F. Please ensure that sediment and erosion and control measures are not placed in wetlands. G. Wetland Impacts ' 1) Identify the federal manual used for identifying and delineating jurisdictional wetlands. 2) Have wetlands been avoided as much as possible? 3) Have wetland impacts been minimized? 4) Discuss wetland impacts by plant communities affected. 5) Discuss the quality of wetlands impacted. 6) Summarize the total wetland impacts. 7) List the 401 General Certification numbers requested from DEM. I P.O. Box 29535, Rdeigh, North Carolina 27626.0535 Telephone 919-733-7015 FAX 919-733-2496 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper Melba McGee February 21, 1995 Page 2 H. Will borrow locations be in wetlands? Borrow/waste areas should avoid wetlands to the maximum extent practicable. Prior to approval of any borrow/waste site in a wetland, the contractor shall obtain a 401 Certification from DEM. I. Did NCDOT utilize the existing road alignments as much as possible? Why not (if applicable)? J. To what extent can traffic congestion management techniques alleviate the traffic problems in the study area? K. Please provide a conceptual mitigation plan to help the environmental review. The mitigation plan may state the following: Compensatory mitigation will be considered only after wetland impacts have been avoided and minimized to the maximum extent possible. On-site, in-kind mitigation is the preferred method of mitigation. In-kind mitigation within the same watershed is preferred over out-of-kind mitigation. Mitigation should be in the following order: restoration, creation, enhancement, and lastly banking. Please note that a 401 Water Quality Certification cannot be issued until the conditions of NCAC 15A: 01C.0402 (Limitations on Actions During NCEPA Process) are met. This regulation prevents DEM from issuing the 401 Certification until a FONSI or Record of Decision (ROD) has been issued by the Department requiring the document. If the 401 Certification application is submitted for review prior to issuance of the FONSI or ROD, it is recommended that the applicant state that the 401 will not be issued until the applicant informs DEM that the FONSI or ROD has been signed by the Department. Written concurrence of 401 Water Quality Certification may be required for this project. Applications requesting coverage under our General Certification 14 or General Permit 31 will require written concurrence. Please be aware that 401 Certification may be denied if wetland impacts have not been avoided and minimized to the maximum extent practicable. 10848.mem cc: Eric Galamb I 1 1 ,I I1 1 11 I u I ,1 1 i NCWRC,NCP,FRLLS LAKE TEL:919-528-9839 Feb 21'95 11:06 No.006 P.03 L;' North Carolina Wildlife Resources Commission FP 512 N. Salisbury Street, Raleigh North Carolina 27604-I188, 919-733-3391 Charles R. Fullwood, Executive Director MEMORANDUM TO: Melba McGee Office of Legislative and Intergovernmental Affairs FROM: David Cox, Highway Project C for Habitat Conservation Program DATE: February 21, 1995 SUBJEC'T': Request for information from the N. C. Department of Transportation (NCDOT) regarding fish and wildlife concerns for the second bridge to Oak Island and approach roads, from NC 211 to SR 1104, Brunswick County, North Carolina. TIP No. R-2245, SCI-I Project No. 95-0512. This memorandum responds to a request from Mr. H. Franklin Vick of the NCDOT for our concerns regarding impacts on fish and wildlife resources resulting from the subject project. Staff biologists of the N. C. Wildlife Resources Commission (NCWRC:) have reviewed the proposed improvements, and our continents are provided in accordance with provisions of the National Environmental Policy Act (42 U.S.C. 4332(2)(c)) and the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S,C.661-667d). NCDOT proposes to upgrade SR 1105 from SR 1104 to SR 1190 and construct a ' new roadway from NC 211 at SR 1500 tb SR 1190, this will include constructing anew high-rise bridge over the Intracoastal Waterway and replacing the bridge over Davis Creek. The total project length is approximately 5.15 miles. We are concerned about impacts to wetlands, fishery resources (particularly anadromous species and areas designated as Primary Nursery Areas (PNA)), and wildlife habitat that will result from construction of the segment on new location. In the formal scoping meeting on February 15, 1995, six preliminary study corridors for the new location segment were presented. All study corridors cross significant amounts of wetlands, wildlife habitat, and have the potential to adversely affect listed species and unique natural areas. At least two Carolina Bays are located between NC 211 and the Intracoastal Waterway. 1'liere is a high potential for listed plant species in association with these habitats. 1 i NCWRC,HCP,FRLLS LRKE TEL:919-528-9859 Feb 21'95 11:07 N0.006 P.04 , Memo 2 February 21, 1995 We recottunend that NCDOT hold a second seeping meeting to discuss these ' alternatives prior to eliminating any of these corridors from further study. All involved , review and regulatory agencies should provide input on the study corridors. In addition to any specific recommendations or concerns regarding the subject project, our general informational needs are outlined below: Description of fishery and wildlife resources within the project area, including a listing of federally or state designated threatened, endangered, or special concern species. Potential borrow areas to be used for project construction. should be included in the inventories. A listing of designated plant species can be developed through consultation with: The Natural Heritage Program N. C. Division of Parks and Recreation P. O. Box 27687 Raleigh, N. C, 27611 (919) 733-7795 and, NCDA Plant Conservation Program P. O. Box 27647 Raleigh, N. C. 27611 (919) 733-3610 Description of any streams or wetlands affected by the project. The need for channelizing or relocating portions of streams crossed and the extent of such activities. 3. Cover type maps showing wetland acreages impacted by the project. Wetland acreages should include all project-related areas that may undergo hydrologic change as a result of ditching, other drainage, or filling for project construction. Wetland identification may be accomplished through coordination with the U. S. Army Corps of Engineers (COE). If the COE is not consulted, the person delineating wetlands should be identified and criteria listed. Cover type maps showing acreages of upland wildlife habitat impacted by the proposed project. Potential borrow sites should be included. 5. The extent to which the project will result in loss, degradation, or fragmentation of wildlife habitat (wetlands or uplands). 6. Mitigation for avoiding, minimizing or compensating for direct and indirect degradation in habitat quality as well as quantitative losses. 7. A cumulative impact assessment section which analyzes the environmental effects of highway construction and quantifies the contribution of this individual project to environmental degradation. NCWRC,HCP,FRLLS LRKE TEL:919-528-9839 Feb 21'95 11:07 NO.006 P.05 Memo 3 February 21. 1995 8. A discussion of the probable impacts on natural resources which will ' result from secondary development facilitated by the improved road access. ' 9. If construction of this facility is to be coordinated with other state, municipal, or private development projects, a description of these projects should be included in the environmental document, and all project sponsors should be identified. Thank you for the opportunity to provide input in the early planning stages for this project. If we can further assist your office, please contact David Cox, Highway n Project Coordinator, at (919) 528-9886. cc: Thomas Padgett, District 4 Wildlife Biologist Keith Ashley, District 4 Fisheries Biologist Randy Wilson, Nongame/Lndangered Species Program Mgr. n David Dell, U. S. Fish and Wildlife Service, Raleigh U D I I 1 0 I I i I James B. Hunt, Jr., Governor e3 f _} S't North Carolina Department of Cultural Resources Betty Ray McCain, Secretary . February 23, 1995 Nicholas L. Graf Division Administrator Federal Highway Administration Department of Transportation 310 New Bern Avenue Raleigh, N.C. 27601-1442 ' Re: Second Bridge to Oak Island, Brunswick County, R-2245, Federal Aid Project No. STP-1105(6), State Project No. 8.2231201, ER 95-8343 and CH 95-E-4220-0512 Dear Mr. Graf: Division of Archives and History William S. Price, Jr., Director ' Thank you for your. letter of February 6, 1995, transmitting the historic structures survey report by Mattson, Alexander & Associates concerning the above project. Prior to receiving that report, we also received notification from the State Clearinghouse about the project. This memorandum provides comments on both ' transmittals. We understand that there are no structures over fifty years of age located within ' the study area for this project. Therefore, in terms of historic architectural resources, we have no comment on the project as currently proposed. There are at least three recorded archaeological sites in the study area; thus, we concur with your stated intention to conduct archaeological studies during Phase 1 and 2 of this project. ' The above comments are made pursuant to Section 106 of the National Historic Preservation Act of 1966 and the Advisory Council on Historic Preservation's Regulations for Compliance with Section 106, codified at 36 CFR Part 800. ' Thank you for your cooperation and consideration. If you have questions concerning the above comment, please.contact Renee Gledhill-Earley, ' environmental review coordinator, at 919/733-4763. Sincerely, f? -David Brook ' Deputy State Historic Preservation Officer DB:slw 109 East Jones Street • Raleigh, North Carolina 27601.2807 ?P U.S. Department Commander CC Federal Building of Transportation Fifth Coast d?jsiNet ?/ C n 431 Crawford Street A, rtsmouth, VA 23 4 United States ` ?Pt feSymb?:804) 398-6227 Coast Guard ' MAR 0 2 1995 16P90 ZZ DIVISIGN OF Feb 95 ' G'd HIGHWAYS v? I Mr. H. Franklin Vick, P.E., Manager p Planning and Environmental Branch ?NVIRON North Carolina Department of Transportation P.O. Box 25201 Raleigh, North Carolina 27611-5201 I. Dear Mr. Vick: This is in response to your letter dated January 23, 1995, soliciting Coast Guard comments for the proposed new second bridge across the Atlantic Intracoastal Waterway and the replacement of the existing bridge across Davis Creek at Oak Island, North Carolina. ¦ The information provided in your letter has been reviewed by my Bridge Staff. At this time, the only information we can provide pertains to the navigational clearances that will be required for the proposed fixed highway bridge across the Atlantic Intracoastal Waterway (ICW). For fixed bridges crossing the ICW, the established guide clearances require that the vertical clearance at mean high water will be 65 feet and the horizontal clearance will be a minimum of 90 feet.. We cannot provide you with adequate navigational clearances for the replacement of the ' existing bridge cross Davis Creek; however, you can, prior to submission of a bridge permit application, provide us with the proposed navigational clearances and request in writing that we ' publish a Preliminary Public Notice to gather public input as to the adequacy of the proposed bridge clearances. Any and all comments that we receive as a result of this notice would be forwarded to you for your review. ' In the event the environmental document is an EIS, we request to be a cooperating agency. Since the Federal Highway ' Administration is the lead Federal agency for this project, our NEPA jurisdiction is limited to the bridges and their approaches and any secondary environmental impacts that would occur as a result of the bridge. As a cooperating agency, we will provide ' the lead Federal agency with comments on any issues relating to our area of jurisdiction pertaining to this bridge project. I L 16590 23 Feb 95 We appreciate the opportunity to provide comments during the early stages of this project. Please contact Ms. Linda Gilliam, Bridge Management Specialist, at (804)398-6227 should you have any questions regarding this matter. Sincerely, ANN B. DEATON Chief, Bridge Section By direction of the Commander Fifth Coast Guard District 2 I 1 `t _ C, C: JTo o: Natural Her-tacre ProSram r_l_ Richard L eBlond ` , Subject: Mav CO, 1`=i95 investigation of alternative rout's for nropcsed road to Lonz Beach throl:gh the Boilinc Snr_n_ T ake^--Wetland Comple:: south of ?IC 211, Er .in snick ' County. Or. ?day S0, '1995, met with represent.ati;es. from. sever.;) agencies. and erg.anioatiGns to ir!vestigate seven alternative routes for a pronosed r oad to Lcng Beach. BrVP. E. Y/l ck Co., thrGU=h that jGrtiCr! of the Boiliji Snri•r, La?:es--Wetland Cc:nple:: SouthOf h+chway TFC ' 211. The represented agencies and organi2atione.Yizre the U.S` Army Corps of Engineers, N.C. Department V0_ Transportation <DOTi. C. Division of En-.,ironmental Mana ement, N. C. Wildlif ' Resources Comm'_•ssion, N.C. Natural Heritage ?rcgram (nnyszlf Town of Lonc Beach Public Works, and DSAtlantic environmental consultants. v The seven alternative routes are indicated in Figures 1 anti (note that. the six: alternatives shcY;ii in Fig. 1 share portions Of i with other alternatives). As aV result of the site corridors investigation, three alternatives were given a higher recommendation priority, and our were riven a lower recommendation priority. The higher priority alternatives are ' 0101:102 <a "hybrid" indicated on Fig. 1 as C101:102), 0005, and 0308. The lower priority alternatives are C401, C301, 0306, and portions of both C101 and C102. Alternative C401 is shown on Fig. 2; the other six alternatives are shown on Fig. 1. Alternative 0401 is located along SP 1112, a paved road e;:tending from NC 211 to the town of Sunset Harbor, with a proposed bridge ' across the Intracoastal Waterway to the west end of Oak Island. This alternative was given a lower priority due to the existence of a town earl: at the west end of the barrier island. This park- ' would be impacted by bridge and road construction, which is prohibited by state regulations if an alternative route exists. Portions of- C101 and C102 were combined, alt=- other port'-ons- ' eliminated, to create a single alternative. This was done to eliminate a 90 turn in 0101 (objected to by DOT), and to bring the southern portion of C102 further to the west of longleaf pine ' communities. C301 and C306 were given a lower priority without comment. A portion of C301 follows a Carolina bay rim with good quality longleaf pine communities, and C306 crosses through the center of a large Carolina bay basin. Each of the three higher priority alternatives will impact wetlands and longleaf pine communities. But the most important consideration, relative to longterm viability of extant natural areas, may be the degree to which the chosen alternative opens uo the entire area to commercial an residential 6. eve1C-Lmeen+ 0101/102 may; have the least direct impact on- natural =seas bu- may have considerable secondary impacts by opening up the western portion of the area to development.. There is considerable "high" ground to the west of this alternative (mostly planted pine), and this alternative passes close to Carolina bav rims with good quality longleaf pine habitat that could be opened to development. 0305, the centrally located hither priority alternative, would provide access to longleaf dominated bav rims and ridges., but also is adiacent to lsrge wetland erects, which would restrict the amount of development in this area. C-108. the easternmost of the three higher priority alternatives., passes through wet and dry longleaf habitat, but is bordered on the east by the 'ames F'lantstion development. -t also passe =_. through areas that have already been deenl- ditched, apparently in preparation for planned development that could be reached by roads from the St, Sames Plan=aticn. These secondary impacts could be miti;,ated or eliminated by wetland mitigation regulations, or byJ "no access" provisions precluding the use of the road for development access, including strip development along the road itself. Another alternative that apparently has not along the considered is to construct a road eastward from SR 1112 north of the town of Sunset Harbor and south of the Boiling Spring Lakes--Wetland Complex to the bridge crossing proposed for the alternatives in Fig. 1. This route would have the least impact to longleaf pine communities and wetlands without providing access to developable areas within the Boiling Spring Lakes--Wetland Complex. J ? 6c, li?? SPr?.) fake c--!?eNa.! ?o.. ?dex road a iEe.,,z{,f.u /. iJ 1 c? 1 ,J C 1 \\ c .'I a, I Al.lanl.ic Occon rr JllfL ., ?. ar 1. ?S S(+r ??? L. I,:-- W?T Ie •.? ?o?Pi« ruin =I+c f.a {-,?rJ. ' State of North Carolina Department of Environment, Health and Natural Resources ' Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary ' A. Preston Howard, Jr., P.E., Director June 1, 1995 Memorandum ?? - app ` S IT' r .tom ED FEE "PQ4 F;1' To: Melba McGee Through: John Dorn ' From: Eric GalambL Subject. - Oak Island Road and Bridge ' Brunswick County TIP No. R-2245 ' The Division of Environmental Management (DEM) is on the steering committee for the subject project During the meeting on May 10, 1995, the committee agreed to eliminate alignments CIOIA, C102A, C301, and C306. There were five alignments that remained in for further study: C101, C102, C305, C308 and C401. DOT requested that either C101 or C102 be eliminated from further study. The resource agencies were not wMing to ' eliminate one of these alignments without a site visit DEM requested that C305 be eliminated due to excessive wetland impact. DOT was unwilling to eliminate this alternative. ' A site visit was made by DOT, their consultants, COE, WRC, Parks and Recreation, and DEM on May 30, 1995. All agencies agreed to study a modified C102 alignment (see attached map). Additional wetlands were located adjacent to the high quality water zone on alignment C308. DEM requested that DOT make minor ' alignment shifts to avoid these wetlands. DEM also requested that DOT investigate mitigation opportunities for the wetlands avoided along C308. The information that DOT has provided is based on a 500 feet corridor width. The actual right of way ' will be 150 feet DEM calculated that actual wetland impacts (based on 150 feet) would be approximately 4.69 acres per mile for alignment C305 and 2.75 acres per mile for alignment C308. These wetland impacts are high for a project of this nature; particularly C305. DOT is proposing that control of access will not be used for this project. This will allow strip development along the road and further increase the impacts to the adjacent wetlands. Furthermore, the secondary development will reduce the level of service and carrying capacity of the road and thus necessitate another road to alleviate traffic congestion. ' DEM cannot concur with the environmental document unless full control of access is studied or a complete analysis is done of secondary development with partial control of access. ' R-2245.mem cc: Ted Bisterfeld, EPA ' Roy Shelton, FHWA Monica Swihart ' P.O. Box 29535, Raleigh, "!orttr Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496 ' An Equal Opportunity Ahirmative Action Employer recycled/ 10% post-consumer paper .__.._...... ......_.._. ...............>,:.. - ..__.......... ti KV, r1 .% ?l C.-I .l -1 Al.lullt.ic Occan J ?I,',ir.il.lr 1 + ? '1 V 1 1 ' DIVISION OF PARKS AND RECREATION June 12, 1995 Memorandum 11 I TO: Melba McGee I FROM: Stephen Hall ? SUBJECT: Analysis of Alternative Routes for Western Access to Oak Island, Brunswick County REFERENCE: 95-0512 ' In our comments on the Scoping document for this project (Hall, 2/13/95), the Division expressed concerns about the potential impacts this project could have on the large tracts of high quality natural communities that exist in this area. A number of rare species of plants and animals were identified in our comments as either having been recorded in the area or potentially present, given the existence of suitable habitat. In addition to the direct impacts due to road construction, our major concern was that this project has a high potential for generating even more serious secondary impacts by opening up this large tract of undeveloped land for development. Recently, an interagency meeting was held on the site to review a number of alternative ' potential to avoid significant direct impacts, particularly the eastern-most alignment located near St. James Plantation development, they all pose significant risks due to secondary ' impacts, particularly since the road has not been proposed to be restricted access. Given the cumulative loss of wetlands and other significant natural areas that is occurring at an accelerated pace in Brunswick County, the Division recommends that an EIS be prepared for this project. The issue of secondary and cumulative impacts should be given special consideration and all possible alignments -- including the new alignment suggested above -- be reviewed in order to determine which would have the least impact on this significant complex of natural areas. LeBlond (DPR-Natural Heritage Program), is enclosed, along with maps to illustrating the proposed alignments. Although the route the Division had proposed that would provhaveide a direct connection between Oak Island and Sunset Harbor was found to be precluded, due to the presence of a county park at the west end of the island, another alternative still seems alignments Although for certain the of the proposed other roadway. alternatives A currently summary of under this con meeting, consideration prepared appear by Richard possible that would avoid much of the impacts on the wetlands and other natural communities in the area: construct a road eastward from SR 1112 , beginning just north of Sunset Harbor and extending to the proposed bridge crossing along a route south of the significant wetland complex (see comments by LeBlond). I u 1 I NI-EMORANDUM _-L 111(1 P North Carolina Wildlife Resources Commission n 512 N. Salisbury Street, Raleigh, North Carolina 27604-1188, 919-733-3391 Charles R. Fullwood, Executive Director TO: Melba McGee Office of Legislative and Intergovernmental Affairs FROM: David Cox, Highway Project Co ator Habitat Conservation Program ' DATE: June 14, 1995 SUBJECT: Follow-up continents on the N. C. Department of Transportation (NCDOT) proposal for the second bridge to Oak Island and approach roads, from NC 211 to SR 1104, Brunswick County, North Carolina. State Project No. 8.2231201, TIP No. R-2245. L? I I 1 1 11 Staff biologists of the N. C. Wildlife Resources Commission (NCR RC) have reviewed the proposed improvements, and our comments are provided in accordance with provisions of the National Environmental Policy Act (42 U.S.C. 4312(2)(c)) and the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667d). NCDOT proposes to upgrade SR 1105 from SR 1104 to SR 1190 and construct a new roadway from NC 211 at SR 1500 to SR 1190, this will include constructing anew high-rise bridge over the Intracoastal Waterway and replacing the bridge over Davis Creek. The total project length is approximately 5.15 miles. We attended interagency meetings with NCDOT on February 15, 1995, May 10, 1995 and visited the site on-May-3-0.1995. Weremain-concerned-ahout imnactt-to: _•J I study corridors cross significant amounts of wetlands; wil'dlife'hpbittit'and? have the potential to adversely affect listed species and unique natural areas. -?_F .EHILL ; 1 :'Ilcil -.9 7u? 1.:.' d iln F Meow 2 June 14, 1995 / it-is:also likely that a portion of the area known as the-Boiling-Springs Lake l Wetland:Complex.(I3StiWC),:as.designated by the Natural Heritage Program, will beet -donsurned_by, this development.— The habitat types found in the vicinity of the project are threatened on a national basis and few good examples remain. The sand-ridge and relic pine savannah communities provide habitat for several state listed and federal candidate plant species. Some areas, especially areas that have experienced recent fire, show good coverage of wire grass (Aristida stricta) and contain good to excellent populations of carnivorous plants including Venus flytrap (Dionea muscipula), Trumpets (Sarracenia flava), and two species of Sundew (Drosera roiundlfolia) and (Drosera brevifolia). We_'ceommend thafNCDOT-thoroughly..address,secondary_impacts in.thr, :enyifopnierital ;docuinentI The discussion should compare the development potential of the land between NC 211 and the Intracoastal waterway with and without the proposed roadway.. II- qv would an-riccess-controlled facility affect secondary development? Would an access-controlled facility serve the purpose and need of the project?.-.What .; effect will the proposed project .and: attending futwe development have on preservation . plans for the BSLWC'? Emergencyevacuation of Oak Island in the event of an accident: at the Bnmswick Nuclear Powerstation is a purpose of this project; why would the, upgrade-of SR 1, f 12 acid a bridge from Sunset Harbor to West Oak Island Drive not be a feasible alternative? : i In light of the significant natural resources in the project area and the potential of this project to accelerate development of land within the proposed boundaries of the BSLWC, we feel that.NCDOT should prepare.a Draft Environmental Impact Statement (DEIS). We feel that an Environmental Assessment (EA) may not provide sufficient alternative analysis for a project of this scope. Thant: you for the opportunity to provide input in the early planning stages for this project. If we can further assist your office, please contact David Cox, Highway Project Coordinator, at (919) 528-9886, cc: Thomas Padgett, District 4 Wildlife Biologist Keith Ashley, District 4 Fisheries Biologist Randy Wilson, Nongame/Endangered Species Program Mgr. Howard Hall, U. S. Fish and Wildlife Service, Raleigh Scott McLendon, USACOE, Wilmington ` State of North Carolina ` Department of Environment, Health and Natural Resources Legislative & Intergovernmental Affairs James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary Henry M. Lancaster Ii, Director MEMORANDUM TO: Frank Vick Planning and Environmental FROM: RE: DATE: F3 1 Melba McGee ll?? Environmental Review Coordinator 95-0512 Analysis of Alternative Routes Access to Oak Island, Brunswick County June 19, 1995 GEI JUN 2 1 1995 DIVISION OF i'IGHWAYS The Department of Environment, Health, and Natural Resources reviewed the Department of Transportation's scoping notice in February of 1995. During that time, our divisions raised considerable concerns regarding the proposed project. The Department of Transportation has consulted with our divisions on a number of occasions to discuss alternative routes for a new roadway to Long Beach. As you review the attached comments, you will find our divisions continue to raise questions concerning wetlands, the possibility of rare species, and impacts to wildlife habitat. of particular concern is the potential for secondary impacts, especially if the project does not include control of access. We support the Department of Transportation's continued coordination of this project. The issues raised by our divisions show the potential for significant impacts to these natural areas ,_-:_ both primary and secondary project effects. If this is the case, the department recommends that a more detailed environmental review be conducted in the form of an Environmental Impact Statement. Thank you for the opportunity to respond, attachments cc: Chrys Baggett EHNR Reviewers David Foster I P.O. Box 27687, Raleigh, North Carolinc 2761 1-7687 Telephone 919-733-4984 An Equal Opportunity Affirmative Action Employer °P; recycled/ 10'o post-consumer paper Y I I I i REPLY TO ATTENTION OF Regulatory Branch DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS P.O. SOX 1890 WILMINGTON, NORTH CAROLINA 28402-1890 March 6. 1996 Action ID No. 199506041, TIP R-2245, Second Bridge to Oak Island Mr. Frank Vick Planning and Environmental Branch Division of Highways North Carolina Department of Transportation Post Office Box 25201 Raleigh, North Carolina 27611-5201 Dear Mr. Vick: EI MAR u R 1996 D!VISIC-N O?- Reference the various steering committee meetings and field visits relative to the North Carolina Department of Transportation (NCDOT) proposal to construct a 2-lane connector with partial control of access on a new location from SR 1500 near Smith, to SR 1105 (Middleton Avenue) on Oak Island, Brunswick County, North Carolina. The project also includes construction of a new bridge over the Intracoastal Waterway and improvements to Middleton Avenue over Big Davis Canal. It is our understanding that NCDOT is in the process of preparing an Environmental Assessment (EA) that will provide detailed information on the various alternatives that were considered for this project. As you are aware, a significant amount of concern has been expressed over the expected direct and secondary impacts to the Boiling Springs Lake Wetland Complex if any of the three new location alternatives are built. Accordingly, we offer the following comments and recommendations that should be addressed in the EA: a. Full justification should be provided as to why the upgrade alternative was dropped from further consideration. As discussed previously, one of the stated purposes of the proposed road and bridge is to facilitate the egress of people from the island in the event of a hurricane or nuclear ' accident at the Brunswick Power Plant. It appears that constructing the facility further to the east would more effectively meet this need. Additionally, the 2-lane section that is now proposed would presumably reduce or eliminate relocation impacts associated with the widening of SR 1112. b. The EA should provide detailed information on the impacts to wetlands associated with the bridge construction, including the need (if any) for dredging in the Intracoastal Waterway. ' c. The EA should provide information on the expected impacts to wetlands at Davis Creek if improvements to Middleton Avenue are necessary. ' d. The EA should discuss the expected secondary development impacts associated with the construction of the connector. Would a controlled access facility still meet the purpose and need of the project? e. The EA should provide information relative to the source of traffic that will be using the road and bridge. For example, do traffic counts or modeling studies indicate that a majority of travelers are originating from points east of Oak Island? Pnn W 0 Reryclad Paper -2- f. The EA should identify any other transportation improvement projects in the vicinity of the proposed project. g. The EA should address the impacts to the public access facility on the north end of Middleton Avenue. h. A compensatory mitigation plan that will provide for the full functional replacement of the unavoidable adverse impacts to wetlands should be included in the EA. We appreciate the opportunity to comment on this project during this phase of the planning process. If you have any questions or comments regarding this correspondence, please do not hesitate to contact me at (910) 251-4725. Sincerely, c McLen o Re atory oject Manager Copies Furnished: Mr. Nicholas L. Graf Federal Highway Administration 310 New Bern Avenue, Suite 410 Raleigh, North Carolina 27601 Mrs. Melba McGee North Carolina Department of Environment, Health and Natural Resources Legislative and Intergovernmental Affairs 512 N. Salisbury Street Raleigh, North Carolina 27604 Mr. Thomas Welborn, Chief Wetlands Regulatory Section-Region IV Wetlands, Oceans and Watersheds Branch U.S. Environmental Protection Agency 345 Courtland Street Atlanta, Georgia 30365 5 I ?? rQ? I North Carolina Department of Cultural Resources James B. Hunt Jr., Governor Division of Archives and History Betty Ray McCain, Secretary Jeffrey J. Crow, Director July 24, 1996 Nicholas L. Graf '. Division Administrator Federal Highway Administration Department of Transportation I? 310 New Bern Avenue Raleigh, N.C. 27601-1442 Re: Second bridge to Oak Island, Federal-Aid Project STP-1105(6), R-2245, Brunswick County, 95-E- 4220-0512, ER 96-9206 Dear Mr. Graf: Thank you for your letter of June 12, 1996, transmitting the archaeological survey report by Lee Novick concerning the above project. We have reviewed the report and concur with the recommendations on page 6.10 that an archaeological survey be conducted of those portions of the preferred corridor that contain Foreston or Leon soils and are associated with Carolina Bay rims. Further, we concur with the recommendation on page 6.10 that no underwater archaeological investigations are necessary as part of this project. The above comments are made pursuant to Section 106 of the National Historic Preservation Act and the Advisory Council on Historic Preservation's Regulations for Compliance with Section 106 codified at 36 CFR Part 800. Thank you for your cooperation and consideration. If you have questions concerning the above comment, please contact Renee Gledhill-Earley, environmental review coordinator, at 919/733-4763. Sincerely, 1 David Brook Deputy State Historic Preservation Officer DB:slw cc: H. F. Vick L. Novick - 109 East Jones Street • Raleigh, North Carolina 27601-2807 g?? I [1 I ,I J rl U.S. DEPARTMENT OF TRANSPORTATION FEDERAL HIGHWAY ADMINISTRATION g ° Region Four tS 310 New Bern Avenue, Suite 410 4a>a of r? Raleigh, North Carolina 27601 July 29, 1996 Mr. H. F. Vick, P.E. JU( 3 X996 Manager of Planning and Environmental Branch 3Z Division of Highways ?sT D1VjSICN GF Raleigh, North Carolina HIGHWAY;'; Dear Mr. Vick: 0tJNr?F ' TO Subject: Federal-aid Project STP-1105(6), State No. 8. 2231201, R-2245, Brunswick County - Second Bridge to Oak Island The review of correspondence and information regarding the Intracoastal Waterway public access site at the end of Middleton Avenue in the Town of Long Beach has been completed as requested. The existing access site was developed by the Town with the understanding that it would probably be disrupted by the proposed bridge project. Accordingly, the access site is considered to be a temporary use of highway right of way. Based upon our review of this material, the Federal Highway Administration determined that the provisions of Section 4(f) are not applicable to the waterway access site in question. Since the Town has indicated they have not used Land and Water Conservation Funds to develop the site, the provisions of Section 6(f) are also not applicable. Sincerely yours, FFoY` Nichhs. Graf, P.E. Division Administrator I 1 1\? ?fD SI„F UNITED STATES ENVIRONMENTAL PROTECION AGENCY REGION 4 3,5 COURTLAND STREET, N.E. ATLANTA- GEORGIA 30365 C Ei Mr. H. Franklin Vick, P.E. Manager, Planning and Environmental Branch Z 2 Division of Highways North Carolina Department of Transportation P.O. Box 25201 Raleigh, North Carolina 27611 r I Attention: Phil Harris Subject: Second Bridge to Oak Island, Brunswick County TIP•No.R-2245 ' Dear Mr. Vick: Thank you for providing the handout from the January 24, 1996, interagency steering comTittee meeting. We could not find scoping information about this h=chwav project in our files. The alternatives presented in the handout define three .overland routes but all from a s,ngle mid-island bridge location, identified on the figure as Middleton Avenue. The concern we ' have is whether any other alternative locations on the _sland for a bridge were considered. Referencing the state highway map, another possible bridge site exists at the western end of the island for connection to the mainland at Sunset Harbor. We believe there is reason to consider another bridge and route alternative. First, a location further away from the present bridge (SR 133) would tend to equalize the evacuation traffic between the routes. A Sunset Harbor route is further from the Brunswick Nuclear Station. This western route would I utilize a present roadway north from the island to NC 211 and would avoid traversing on new alignment 7-9 miles of relatively undeveloped farmland and natural areas. We note the possible presence of endangered species within the study area. Finally, this alternative may also eliminate the need for one of the two water crossings that would be needed for all presently considered alternatives. This project could have a number of environmental and navigational issues because it would be serving development on a coastal barrier island. We suggest there be additional r coordination regarding the type of environmental document selected for compliance with the National Environmental Policy Act. LJ -2- Ted Bisterfeld (tel. 404/3457-03776 x6843) will serve as the EPA initial point of contact for this project. Thank you for the opportunity to review the project planning information. Sincerely, 2? ?X LLU Heinz J. Mueller Chief, Environmental Policy Section cc: Roy Shelton, FHWA Raleigh John Hefner, FWS Raleigh Melba McGhee, NCDEHNR PtMEHT Ot th "? 0 H y4HCH 3 ,ea ;1 I 1I 'I ,1 .' I November 21, 1996 H. Franklin Vick, P. E., Manager Planning and Environmental Branch North Carolina Department of Transportation PO Box 25201 Raleigh, NC 27611-5201 C Vol/ 2 2 S 1996 SUBJ: Second Bridge to Oak Island, Brunswick County, Federal Aid Project No. STP-1105(6), State Project No. 8.2231201, TIP Project No. R-2245 Dear Mr. Vick: The U.S. Fish and Wildlife Service (Service) has reviewed your October 31, 1996 letter and red-cockaded woodpecker (RCW) assessment prepared by Gary B. Blank, Ph.D. and Richard R. Braham, Ph.D. for the above-referenced project in Brunswick County, North Carolina. Our comments are provided in accordance with Section 7 of the Endangered Species Act of 1973, as amended (16 U.S.C. 1531- 1543). The results of the RCW survey and the foraging analysis indicate that sufficient foraging habitat will exist post-project. The Service therefore concurs that the proposed project alternative B is not likely to adversely affect the red-cockaded woodpecker. We assume that these findings incorporate the conclusions of your secondary and cumulative impacts Technical Memorandum for this project. Please be advised that these documents do not indicate that you have considered any other Federally-listed endangered or threatened species. Therefore this concurrence only refers to the red-cockaded woodpecker. We remind you that obligations under Section 7 consultation must be reconsidered if: (1) new information reveals impacts of this identified action that may affect listed species or critical habitat in a manner not previously considered; (2) this action is subsequently modified in a manner that was not considered in this United States Department of the Interior FISH AND WILDLIFE SERVICE Raleigh Field Office Post Office Sox 33726 Raleigh, North Carolina 27636-3726 11 review; (3) a new species is listed or critical habitat determined that may be affected by the identified action. The Service has serious concerns about this proposed project. The project has considerable potential to impact valuable wetlands and fragment important wildlife habitat. Consequently, we take this opportunity to advise the NCDOT that environmental documentation should present detailed information on all possible alternatives, and an in-depth comparision of the environmental impacts of each alternative. Thank you for your continued cooperation with our agency. Sincerely, Uohn M. Hef er Supervisor FWS/R4:CMartino/HHall:cm:ll-20-96:919-856-4520:WP51\NCDOT\Oak-Is.NE /856-4520:WP51\NCDOT\Havlk-b2.NE2 I . I DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS P.O. BOX 1890 WILMINGTON, NORTH CAROLINA 28402-1890 February 5, 1997 IN REPLY REFER TO Regulatory Branch S?. ACTION ID. 199506041, TIP R-2245, Second Bridge to Oak Island 1 Mr. Frank Vick, Manager Planning and Environmental Branch State of North Carolina Department of Transportation Post Office Box 25201 Raleigh, North Carolina 27611-5201 Dear Mr. Vick: FEB n - 1,097 Reference our letter dated March 6, 1996, in which we requested additional information concerning the projected environmental and socioeconomic impacts associated with the three (3) new location alternatives. Also, we have reviewed the additional information contained in the Secondary 1 and Cumulative Impacts Technical Memorandum and the Additional Alternatives Report. Based on the information contained in these documents, and as result of ' ongoing coordination on this project, we support the selection of alternatives A, B, and C for detailed study in the Environmental Assessment subject to the conditions and comments from the State and Federal commenting agencies. However, we are requesting that the information that was contained in the ' additional alternatives report be provided in the final environmental document. While we concur with the stated purpose and need for this project, our permit program requires that we make a complete, thorough, and unbiased review of all factors associated with a proposed project within jurisdictional waters of the United States. A major component of the review is the consideration of reasonable and practicable alternatives, required by both the National Environmental Policy Act and the Clean Water Act 404 b (1) Guidelines (33 U.S.C. Section 1344 (b); 40 CFR Part 230). The Clean Water Act requires that individual permit decisions be made "after notice and opportunity for public hearings" (33 U.S.C. Section 1344(a)). Based on these requirements, we believe it is inappropriate for the Wilmington District to make any binding commitment concerning the selection of a single preferred alternative or comment on the likelihood of issuance or denial of a permit prior to going through the review process required by our regulations, found at 33 CFR part 325. We strongly encourage NCDOT to commit to a roadway with partial control of access and allow no more than one access point per parcel of land. This ' may reduce the secondary and cumulative impacts associated with high density "strip-development". ' Finally, the information provided in the draft EA and additional technical memoranda does not support your selection of alternative B as the preferred alternative. Alternatives B and C are very similar with respect to ' socioeconomic impacts (Refer to Table S.1 in the draft EA); however, -2- alternative C will impact significantly less wetlands, including bottom land hardwood forest; will have less impact on the identified natural areas associated with the Boiling Springs Lake wetlands complex; and will lead to less fragmentation of the area between NC Highway 211 and Oak Island. We appreciate the opportunity to provide comments during this stage of the planning process for this project. If you have any questions or comments regarding this correspondence, they may be addressed to me at (910) 251-4725. Sincerely, Scott McLendon Regulatory Project Manager Copies Furnished: Mr. John Hefner US Fish and Wildlife Service Fish and Wildlife Enhancement Post Office Box 33726 Raleigh, North Carolina 27636-3726 Mr. Nicholas L. Graf Federal Highway Administration 310 New Bern Avenue, Suite 410 Raleigh, North Carolina 27601 Ms. Melba McGee North Carolina Department of Environment, Health, and Natural Resources Legislative and Intergovernmental Affairs 512 N. Salisbury Street Raleigh, North Carolina 27604 ° TOWN of LONG BEACH North Carolina 28465 ???`• P.O. Box 217 • 4601 E. Oak Island Dr. E !' PHONE: (910) 276-5011 C v C BEAC FAX: (910) 278-3400 February 23, 1995 FEB 2 7 1995 n DIVISION OF -HIGHWAYS Mr. H. Franklin Vick, P.E., Manager Planning and Environmental Branch Division of Highways North Carolina Department of Transportation P.O. Box 25201 Raleigh, North Carolina 27611-5201 Dear Mr. Vick: SUBJECT: Second Bridge to Oak Island and Approach Roads, from SR 1104 to NC 211, Brunswick County. TIP No. R-2245, State Project No. 8.2231201; Federal Aid No. STP-1105(6) Thank you for the opportunity to attend and participate in the scoping meeting last week for the Second Bridge to Oak Island project. I am appreciative of the efforts of the Department.of Transportation to move this very important project forward. I want to strongly reiterate the Town of Long Beach's support for this project. The Town has a long history of support for a second bridge to Oak Island. Our community, as well as the other Oak Island communities, recognizes the necessity for a second point of access between the island and the mainland due to increasing traffic volumes and public services/safety concerns. In addition to the comments contained in your letter of January 23, 1995, I would offer the following: 1. The Town of Long Beach supports this project for the reasons and purposes set out in your January 23rd letter. An additional concern of our community is the evacuation potential arising from an incident at the Sunny Point Military Terminal. The Sunny Point facility has handled nuclear ' shipments as well as large-scale munitions shipments. Evacuation from an incident at Sunny Point causes similar logistical problems as an incident at the Carolina Power & 1 Light Brunswick nuclear units. I LONG BEACH SUPPORTS RECYCLING • PRINTED ON RECYCLED PAPER I H. Franklin Vick February 23, 1995 Page 2 2. As noted at the scoping meeting, current traffic volumes and , projected increased volumes will continue to add stress to existing transportation facilities. A second bridge is necessary to accommodate projected volumes and relieve congestion in the Caswell Beach, Long Beach and Yaupon Beach communities. 3. In the third paragraph on page three of the January 23rd letter, East Ocean Highway, it should be noted that the current street name is East Oak Island Drive. 4. The Town of Long Beach is experiencing continued growth and development which is reflected by increased year-round and seasonal populations. This trend is expected to continue in the foreseeable future as reflected in the Town's Land Use Plan. In Long Beach, it is estimated that the total buildout of the community currently exceeds fifty percent. Practically all available lots in Yaupon Beach and Caswell Beach have been developed. The Second Bridge project's greatest impact will be to serve the needs of the existing populations as opposed to increasing development pressures. 5. With respect to the functional design of the project, the following comments are offered: a. The project design should seriously consider bicycle and pedestrian access in the project area. b. Consideration should be given to connection of pedestrian/bicycle facilities to existing sidewalks on Middleton. C. The Town currently provides access to the Atlantic Intracoastal Waterway at the end of Middleton. The issue of accommodation of access from local streets to this area should be addressed. The Town has provided a copy of its current Land Use Plan to Mr. Keith Lewis of DS Atlantic Corporation for use in the various study phases of this project. We will be pleased to provide any additional information required by the Department or DS Atlantic in moving the project forward. I -. ' H. Franklin Vick February 23, 1995 Page 3 ' The Second Bridge to Oak Island is vital to the continued well- being of our community. our community continues to support its construction for all of the reasons discussed at the scoping meeting, in your January'23rd letter and in previous feasibility studies. The Town's Land Use Plan lists this project as the most important transportation need of the community. The Town Council has consistently listed this project as its first priority in recommending projects for inclusion in the Transportation Improvement Plan. Please be assured of our community's interest in cooperating in any way possible to advance this project along its current schedule. If you have any questions or need additional information, please feel free to let me know. Sincerely, Joan P. Altman Mayor JPA/phb cc: Mr. Philip Edwards, NC Department of Transportation Mr. Keith lewis, DS Atlantic Mayor Jack B. Cook, Town of Caswell Beach 1 Mayor May W. Moore, Town of Yaupon Beach I '1 I I l? TOWN OF CASWER BEACh P.O. Box 460 • Caswell Beach, NC 28465 • (910) 278-5471 • Fax: (910) 275490 8r G February 20, 1995 ' Mr. H. Franklin Vick, P.E., Manager Planning and Environmental Branch FEB 2 7 1995 Division of Highways 1 North Carolina Department of Transportation P.O. Box 25201 2y DIVISION QF C HIGHWAYS Raleigh, North Carolina 27611-5201 t V t F ?18 Dear Mr. Vick: SUBJECT: Second Bridge to Oak Island and Approach Roads, from SR 1104 to NC 211, Brunswick County. TIP No. R-2245, State I Project No. 8.2231201; Federal Aid No. STP-1105(6) Thank you for the opportunity to offer comments concerning the Second Bridge to Oak Island project. I am appreciative of the efforts of the Department of Transportation to move this very important project forward. I want to strongly reiterate the Town of Caswell Beach's support for this project. The Town has a long history of support for a second bridge to Oak Island. Our community as well as the other Oak Island communities recognize the necessity for a second point of access between the island and the mainland due to increasing traffic volumes and public services/safety concerns. I understand that the recent scoping meeting on this project went well and want to encourage continued movement of the project successfully on its current schedule. In addition to the comments contained in your letter of January 23, 1 1995, I would offer the following: 1. The Town of Caswell Beach supports this project for the reasons and purposes set out in your January 23rd letter. An additional concern of our community is the evacuation potential arising from an incident at the Sunny Point Military Terminal. The Sunny Point facility has handled nuclear shipments as well as large scale munitions shipments. Evacuation from an incident at Sunny Point causes similar logistical problems as an incident at the Carolina Power & Light Brunswick nuclear units. 2. Current traffic volumes and projected increased volumes will continue to add stress to existing transportation facilities. A second bridge is necessary to accommodate projected volumes and relieve congestion in the Caswell Beach, Long Beach and Yaupon Beach communities. ' 3. The Town of Long Beach is experiencing continued growth and development which is reflected by increased year-round and seasonal populations. This trend is expected to continue in the foreseeable future as reflected in the Town's Land Use Plan. Seasonal populations continue to increase in Yaupon Beach and Caswell Beach. In Long Beach, it is estimated that the total buildout of the ' community currently exceeds fifty percent. Practically all available lots in Yaupon Beach and Caswell Beach have been developed. The second bridge project's greatest impact serve the needs of the existing populations as increasing development pressures. will be to opposed to 4.. With respect to the functional design of the project, the following comments are offered: a. The project design should seriously consider bicycle and pedestrian access in the project area. b. Consideration should be given to connection of pedest- sn!bicycle facilities to existing sidewalks on Middleton. c. The Town of Long Beach currently provides access to the Atlantic Intracoastal Waterway at the end of Middleton. The issue of accommodation of access from local streets to this area should be addressed. The second bridge to Oak Island is vital to the continued well- being of our community. Our community continues to support its construction for all of the reasons discussed at the scoping meeting, in your January 23rd letter and in previous feasibility studies. This project is the most important transportation need of our community. The Board of Commissioners has consistently listed this project as its first priority in recommending projects for inclusion in the Transportation Improvement Plan. Please be assured of our community's interest in cooperating in any way possible to advance this project along its current schedule. If you have any questions or need additional information please feel free to let me know. Sincerely, Jack P. Cook Mayor cc: Mr. Philip Edwards, NCDOT Mr. Keith Lewis, DS Atlantic Mayor Joan P. Altman, Town of Long Beach Mayor May W. Moore, Town of Yaupon Beach TOWN OF YAUPON BEACH 518 Yaupon Drive Yaupon Beach, N.C. 28465 (919) -278-5024 February 28, 1995 Mr. H. Franklin Vick, P. E., Manager Planning and Environmental Branch ' Division of Highways P. 0. Box 25201 Raleigh, North Carolina 27611-5201 Dear Mr. Vick, E MAR 0 1 1995 DIVISICN or, HIGHWAYS I am writing about the proposed second bridge to Oak Island with approach roads from SR 1104 to NC 211 in Brunswick County. [TIP No. R-2245, State Project No. 8.2231201; Federal Aid No. STP-1105(6)] The Town of Yaupon Beach supports the construction of a second bridge to Oak Island. jFor many years our citizens ' have actively supported its?construc.tion as members of the Second Bridge Committee, by letters,fand,by petition. There are two`-important reasons for-::the construction of the second bridge..' 1. In the event of an emergency either„a hurricane, an incident at the-Siunny;Point Military Terminal, or an incident at the CP&L Nuclear Plant, rapid.evacuation='-by one bridge is difficult in the months from September to May. We have ' evacuated several";,,times during those months, recent years, and it is time consuming. Should an evacuation occur from June 1st through Labor Day, rapid departure would be impossible. 2. Growth is rapidln-Oak Island both in our summer population and our year round residents. Traffic conditions ' become worse on the island-each year. Yaupon is at present about 70% developed. Long Beach is about 50% built up. This growth is expected to continue in the coming years. The second bridge will relieve traffic pressure. Yaupon stands ready to assist the state's efforts in any way. We look forward to the initiation of construction. We ' will be pleased to provide any information which is needed for this project. Thank you. Sincerely, May W. Moore Mayor, Town of Yaupon Beach MWM/njw ' cc: Mr. Philip Edwards, NC Department of Transportation Mr. Keith Lewis, DS Atlantic Mayor Joan Altman, Town of Long Beach i Mayor Jack Cook, Town of Caswell Beach 1 ?0W N Off, 1 ° TOWN of LONG BEACH -North Carolina 28465 ?? - P.O. Box 217 • 4601 E. Oak Island Dr. PHONE: (910) 278-5011 1 8?i A\i FAX: (910) 278-3400 August 1, 1995 ' Mr. H. Franklin Vick, P.E., Manager Planning and Environmental Branch Division of Highways North Carolina Department of Transportation P.O. Box 25201 Raleigh, North Carolina 27611-5201 Dear Mr. Vick: I am encouraged that the corridors for study for the Second Bridge to Oak Island project have been narrowed to three. I understand that the next step in the process will involve the development of functional designs for each of the corridors leading to selection of a preferred routing of the roadway between Highway 211 and the 1 bridge to be constructed at Middleton. Our community is appreciative of your staff's work in keeping this project on schedule. With respect to the corridor alternatives, I ' urge that attention be given to the benefits of Alternative "A". This corridor may best meet the long-term needs of the Long Beach community when a variety of factors are considered. Thank you for your continuing efforts on behalf of this project. I look forward to the next steps in the project development ' process. Sincerely, ' Joan P. Altman Mayor 1 Zrl0 W. P 0 TOWN of LONG BEACH North Carolina 28465 1 I I 1 I P.O. Box 217 • 4601 E. Oak Island Dr. PHONE: (910) 278-5011 FAX: (910) 278-3400 February 5, 1996 Mr. H. Franklin Vick, P.E. Manager Planning and Environmental Branch Division of Highways North Carolina Department of Transportation P.O. Box 25201 Raleigh, North Carolina 27611-5201 ir v E n? r Dear Mr. Vick: I am encouraged that the second Bridge to Oak Island project continues on schedule. Both the consultants and staff in your agency are to be commended for the continued implementation of tasks which fall within a necessarily tight schedule. I understand that one of the next milestones will be the release of an environmental assessment for the project. The assessment may address a preferred corridor or may address all three corridor alternatives currently under consideration. I urge that attention be given to the benefits of Alternative "B". This corridor may best meet the long-term needs of the Long Beach community when a variety of factors is considered. ' Thank you for your continuing efforts on behalf of this project. I look forward to the next steps in the project development process. Sincerely, Joan P. Altman ' Mayor JAW/phb r LONG BEACH SUPPORTS RECYCLING PRINTED ON RECYCLED PAPER F 1 O TOWN of LONG BEACH North Carolina 28465 1 1 I 1 July 15, 1996 P.O. Box 217 • 4601 E. Oak Island Dr. PHONE: (910) 278 501 1 FAX: (910) 278-3400 Mr. Phil Harris Project Manager North Carolina Department of Transportation P.O. Box 25201 Raleigh, NC 27611-5201 Dear Mr. Harris: This letter is a follow-up to discussions concerning the Intracoastal Waterway public access at Middleton Avenue. This access was constructed with local funds in about 1992. No Land and Water Conservation Funds (LWCF) were used. When it was constructed, Town officials and staff were aware that it would be affected by construction of the Second Bridge to Oak Island. This access is well-used, and Department of Transportation officials have considered public access alternatives when developing construction plans for the bridge. I am confident no access conflicts exist. I note that the access is on a street right-of-way which the Town will provide to NCDOT, when needed, for the bridge. If you have any questions or need additional information, please contact me. Sincerely, ' Joan P. Altman Mayor JAW/phb 1 I LONG BEACH SUPPORTS RECYCLING • PRINTED ON RECYCLED PAPER I 1 I APPENDIX A A.2 - AD-1006 FORMS I I I I 1 6 I U.;S. Ceaartmen( or Agncuirw- i FARMLAND CONVERSION IMPACT RATING vaunt PART I !To Je Comoiera J% --ae.'Jl.lgeacy) I Date Qf Lima t: -,-r -Name ?,t d.airc. „'- aes-rodasea una use ICaunty Ana State F AYXJtClt- l..fl A)C P 1!T II (TO tae comlolleerea.1yy CSCSJ Oat. Rvd."C r7.cnlv.aa 3v SCS des me site contain prime, unique, statewide or local important farmland? Yes No Acres 11 ngand Average Ferm Su (If no. :he FPPA does not aoo/y - do nor complete additional parts of this form). Ib Q Nor Q? t5* far Csoalsl Fatneon Lana In Govt. Junsmct,on Amount Of Fvm zna As Oefinad m PPA l 0 ( Acm: O b %S6.1 Acrm:21? 728 %L "f, 40 ftianw Of Lana Evatuat cn System Used Man" Of Lad Sin AW not sman I Oate Land aiw azt, Returnee ev SOS BYuIn5t,..'?c.(? L? I n/ah2i Z 5 [o ? T „I /T,. ? I Attnnatrve ilt. .......r cuc, o• ..ycn?rr Site 4 sit. a sit. c Site o A. Total Acres To Be Converted Directly Total Acres To Be Converted Indirectly Total Acres In Site (P1,95 1 Lr7 -15,;' SZ.93 'ART IV (To be completed by SCSI Land Evaluation Information Ike Total Acres Prime And Unique Farmland 6.9"1 17, q O Total Acres Statewide And Local Important Farmland I Ills, 7- (O 0.00 Percentage Of Farmland In County Or Local Govt Unit To Be Converted G .O I ,G 0. O / f7 . O Percamage Of F4n`MWm In Govt. Jurisdiction Midi Sane Or Higher Reiative Value I 5 , 1 O I ' V (To be completed by SCSI Land Evaluation Criterion Relative Value Of Farmland To Be Converted (So/eofOrol0OPoints) ` 'A T V I (To be completed by Federal Agency) i am Ginrie /Thes+a crira+ia am "v1&itted in 7 r-FR 6585(6! Maximum Peims Of. Area In Nonurban Use IS (3 I 13 15 1 2. Perimeter In Nonurban Use IJ I I Cl 9 Percent Of Site Being Farmed J I O I Q I 0 Protection Provided BY State And Local Government I O O O 5. Distance From Urban Builtuo Area Distance To Urban Support Servicas - - Sze Ot Present Farm Unit Compared To Average to I S 5 S 8. Creation Of Nonfar cable Farmland ZS O (? O Availabili Of Farm Support Services 5 5 On. Faro Investments Zo o O o 1 Effects Of Conversion On Farm Support Services O O O 1 Compatibility With Existing Agricultural Use IO 5 5 TRI'AL SITE ASSESSMENT POINTS 160 ,RT VII (To be completed by Federal AgencyJ Itive Value Of Farmland (From Parr VJ I 100 1 a,-n I(0,9 ltuA Ta al Si [a Assessment (From Parr V1 above.ora loco/ Sint 160 Tj7 T LL POINTS (Tonal of above 2lines,l 260 95,4-% Lj(o, Was A Laol Ste Ansudian Uaad l . I Selected: saWar Sri Date Of Selection Yes 0 No 1 I I it I APPENDIX A A.3 - RELOCATION REPORTS I I I I I I I I RELOCATION REPORT M E.I.S. ? CORRIDOR EJ DESIGN I 1 11111 1 I 1 i I i IF. 15 4 Rnmd 9 O :Forth Carolina Department of Transportation AREA RELOCATION OFFICE PROJECT: 8.2231201 couNTY BRUNSWICK Alternate of Alternate I.D. NO.: R-2245 F.A. PROJECT STP 1105 (6 ALTERNATES A B & C AFFECT THE DESCRIPTION OF PROJECT: SECOND BRIDGE TO OAK ISLAND SAME RELOCATION ESTIMATED DISPLACEES INCOME LEVEL Type of Dis lacees Owners Tenants Total Minorities 0- 15M 15-25M 25-35M 35-50M 50 UP Individuals Families 10 0 10 0 2 1 5 2 Businesses 0 1 1 0 VA1AMOFDWEUJNC: .!.DIS DwEL .G AVAn ABLE Farms Owners Tenants For Sale For Rent Non-Profit 0.20E $0-150 0-20M 0 $0-150 0 :ANSWER ALL QUESTIONS ? x p M4 0M 150.250 20.40E *50 150.250 0 Yea No E lvln all "YES" answers. 40-70M 2 250.400 40-70M 153 250.400 25 X 1. Will special relocation services be necessary? 70-looM 3 400-600 70480M 75 400-600 30 X 2. Will schools or churches be affect by 100 UP 5 6601W 100 UP 35 600 UP 750 displacement? TOTAL ]0 0 313 795 X 3. Will business services still be available after uxareuKC lies ood li a umber project? Note: All residential displacees considered families. X X 4. Will any business be displaced? If so, *20-40 range also Includes mobile homes. ......... indicate size, type, estimated number of 3. Ample business services will remain after project is built employees, minorities, etc. X 5. Will relocation cause a housing shortage? 4. Beach Pantry - small - 3-5 employees. X::::::::6. Source for available housing-(list). X 7. Will additional housing programs needed? 6. & 14. Local realtors, MLS service, newspapers, etc. X 8. Should Last Resort Housing be considered? X 9. Are there large, disabled, elderly, etc. S. As mandated by State Law. families? 10. E E: Will public housing be needed for project? 11. T Is public housing available? 12. Is it felt there will be adequate DSS housing housing available during relocation period? ? ` 13. Will there be a problem of housing within Mp1dl?G` n i'?H Srw 1 financial means? HT Of I;,' R1G X 14. Are suitable business sites available (list 1996 source). FE6 1 4 15. Number months estimated to complete RELOCATION? Ui: w OBERT B. C HADWICK FEB. 13, 1996 - - Relocation Agent Date Approved b Date Original & 1 Copy: Mare xelocauon Agent 2 Copy Area Relocation Office I APPENDIX A ' A.4 - YELLOW BANKS COORDINATION I I I I I I I I STATE OF NORTH CAROLINA ' DEPARTMENT OF 'IP-,ANSPOR=ON JAmEs B. HUNT JR. DIVISION OF HIGHWAYS GARLAND B.B.?GARRm JR. GovnwOR P.O. BOX 25201 RALEIGH. N.C 27611-5201 November 28, 1995 1 Colonel Robert J. Sperberg ' District Engineer United States Army Corps of Engineers Post Office Box 1890 ' Wilmington, North Carolina 28402-1890 Dear Colonel Sperberg: ' SUBJECT: Second Bridge to Oak Island, Brunswick County, Federal. Aid Project No. 5TP-1105(6), State Project No. 8.2231201, TIP Project No. R-2245 The North Carolina Department of Transportation (NCDOT) is preparing an engineering and environmental study for the proposed second bridge to ON Island in Brunswick County. The proposed project is a two-lane facility from ' SR 1500 (Midway Road) at NC 211 to Middleton Avenue in Long Beach. This project, which is approximately five (5) miles in length, includes a high-level bridge over the Atlantic Intracoastal Waterway, improvements to Middleton Avenue from the bridge to the beach and the replacement of the bridge over Davis Canal. After reviewing the Environmental Assessment, Beneficial Use of Dredged ' Material Pump0 t of Yellow Banks Confined (Diked) Disposal of Dre pe Material on Oa is an Town o Lon Beach, Brunswick Count north Carolina TM-EP-P - - -0 02, October 21, 1995), prepared by the U. S. Army Corps of Engineers, it appears that the two projects may to in canflic:. It is the NCDOT's interpretation that the U. S. Army Corps of Engineers proposes to remove approximately 1,275,000 cubic yards of dredged material from the Yellow Banks Confined Disposal Facility (CDF) and place it along the ocean shoreline of the Town of Long Beach. To accomplish this an access channel will be excavated into the interior portion of the CDF from the . Atlantic Intracoastal Waterway along one of three possible sites where subsurface borings indicate beach quality material is present which can be dredged and pumped to the beach front. Pod 898# :ON 131 NOaION3 QNU 9NINNtild:QI 9Z:OS NOW 96,-OS-Nnl?? Please find enclosed a map presenting the location of the CDF in' relation to the three corridors under consideration. All three corridors . cross the CDF close to, its east boundary. It is the NCOOT's recommendation that the east boundary of the OF be adjusted so it does not intersect with the corridors. According to the Environmental Assessment there is Therefore, approximately the east ? boundary million is cubic yards t of material the available. study corridors there will still remain sufficient material to complete the proposed project. If you have any questions or require additional information as it concerns this project, please contact Mr. Phil Harris, P. E., Project Planning Engineer at (919) 733-3141, (Ext. 267). The North Carolina Denartment of Trarsrnrtatinn anp a?j X05 your cor?int!sd s',npo-t an!! cooperation. Sincere,,, ' i?ir?"(rte !? J H. Franklin Vick, P. E., Manager Planning and Environmental Branch HFV/tp cc! Daniel Small, USACOE Richard S. Davis, P. E., NCDOT :ON 131. NO f1N3 GNU 9NINNUld:aI 9Z:OT NOW 96 OT-Nnr-- [1 Za ;yYt ? STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION JAMES B. HUNT JF. GOVERNOR Colonel Robert J. Sperberg District Engineer DIVISION OF HIGHWAYS P.O. 80X25201. RALEIGH. N.C. 27611-5201 January 19, 1996 United States Army Corps of Engineers ' Post Office Box 1890 Wilmington, North Carolina 28402-1890 I Dear Colonel Sperberg: GARLAND B. GARRETT JR. SECRETARY SUBJECT: Second Bridge to Oak Island, Brunswick County, Federal Aid t Project No. STP-1105(6), State Project No. 8.2231201, TIP Project No. R-2245 1 H k 1 It is the undemanding of the North Carolina Department of Transportation (NCDOT) there is an immediate need to dredge material within the Yellow Banks confined disposal facility (Yellow Banks CDF) for renourishment of eroded beaches in the Town of Longbeach. To expedite this process, please find enclosed a blueline showing the eastern portion of the Yellow Banks CDF and the area which should be reserved from dredging pending further geotechnical investigation by NCDOT. Based on the information provided in the EA and obtained at the January 9, 1996 meeting in Wilmington with the Corps of Engineers, the NCDOT determined additional geotechnical information would be necessary to evaluate quality of material existing within the three project corridors. Should the material within the project corridors be undesirable for project construction, NCDOT will notify the Corps to arrange for the removal of this material for renourishment of local beaches. It is anticipated the geotechnical investigation will be completed by February 2, 1996. With the exception of the above comments, the NCDOT has no further comments at this time. We concur that any dredging of spoil material outside the designated area on the attached map will have no impact on the subject NCDOT project and can be initiated immediately. The NCDOT appreciates this opportunity to comment and looks forward to a constructive relationship with your agency in the future. If you have any questions or concerns as it pertains to the subject project, please contact Phil Harris, P.E.. Project Planning Eneineer, at (919) 733-7844 (e%t. 267). Sinc Franklin Vick P.E., Manager Planning and Environmental Branch HFV/psh Enclosure cc: Mr. Daniel Small. USACE 'vIr. Richard E. Dads, P.E., NCDOT bc: 'Ms. Gail Grimes, P.E., NCDOT J4r. Dave Cochran P.E., NCDOT I- I 1 1 1 0 STATE OF NORTH CAROLINA DEPARTMENT OF TRmSPORTATION JAMES B. HUNT JR. MISION OF HIGHWAYS GARLAND B. GARRETC JR. GovERNOR P.O. BOX 25201. RALEIGH. N.C 27611-5201 SECRETARY February 16, 1996 Colonel Robert J. Sperberg District Engineer United States Army Corps of Engineers Post Office Box 1890 Wilmington, North Carolina 28402-1890 Dear Colonel Sperberg: SUBJECT: Second Bridge to Oak Island, Brunswick County, Federal Aid Project No. STP-1105(6), State Project 8.2231201, TIP Project No. R-2245 Based on the information provided in the US Army Corps of Engineer's (USACE) EA and obtained at the January 9, 1996 meeting in Wilmington with the Corps of Engineers, the NCDOT determined additional geotechnical information would be necessary to evaluate quality of spoil material existing within the corridors for the subject project. As a follow up response to our letter of January 19, 1996, a geotechnical investigation has been completed. Based on this investigation, it is recommended that the spoil material not be removed (see attached memo). The spoil consists of a fine to coarse sand which should be sufficient for embankment construction. If you have any questions or concerns as it pertains to the subject project, please contact Phil Harris, P. E., Project Planning Engineer, at (919) 733-7844 (Ext. 267). Thank you for your continued cooperation and support. V I 11 I I 1 APPENDIX B ' PUBLIC INVOLVEMENT MATERIALS E I .! I I i 1 I I I ?' I I °s Second. Bridge to Oak Island o NEWSLETTER Call or write the study team. The toll- free project hotline provides direct contact between citizens and the NCDOT study team. Comments and suggestions will continue to be documented and considered during the study. Call the prniart hotline at 1-800-349-3721. You also may write to the second bridge to Oak Island study or the NCDOT at the following address: First Citizens Informational Workshop The first citizens informational workshop for the second bridge to Oak Island corridor study wi!I be held on Thursday, March 23, 1995, from 4 to 7 p.m., at the Town of Long Beach Recreation Center, 3003 East Oak Island Drive. Information presented at the workshop will detail the project planning process and the Public Involvement Program. This will be the first opportunity for the people of this community to be informed and to comment on this project. Aerial photographs showing the preliminary alternatives and other dis- plays will be presented at the workshop. Members of the study team will be available to discuss the project and answer questions. You CAN Be Involved! In addition to the citizens workshop, you also can participate in the study process in the following ways: o Arrange a small group meeting for your group or organization. The study team will be available throughout the study process to meet and discuss the project through infor- mal question and answer sessions with neighborhood groups and civic organiza- tions. For details, call the second bridge to Oak Island study hotline at 1-800-349-3721. m'Add your name to the mailing list. If you would like to receive future newsletters or meeting notices and have not already re- quested to be on the mailing list, you may sign up at the workshop. If you are unable to attend the workshop, call the project hotline at 1-800-349-3721. Second Bridge to Oak Island 5511 Capital Center Drive Suite P-100 Raleigh, NC 27606 Comment sheets wil I be provided at the workshop along with a handout discussing project details. Please take the opportunity to write your comments on these sheets and either leave them with us at the meet- ing, or mail them in later. March 8, 1995 Questions or Comments? Call the Toll- Free Project Hotline: 1-800-349-3721 SECOND BRIDGE TO OAK ISLAND Corridor Study and Environmental Document NC 21 1/SR 1500 to SR 1104 along Middleton Avenue Brunswick County State Project No. 6.804759 (TIP No. R-2245) First Citizens Informational Workshop Thursday, March 23, 1995 4 - 7 p.m. Town of Long Beach Recreation Center 3003 East Oak Island Drive Project Tol I-Free Hotline 1-800-349-3721 NCDOT will provide auxiliary aids and services for disabled persons who wish to participate in the workshop to comply with ADA. To receive special services, please contact Philip Edwards at NCDOT, Planning and Environmental Branch, PO Box 25201, Raleigh, NC 27611 or call (919) 733-7842 or fax (919) 733-9794 to give adequate notice prior to the date of the workshop. Project Background The North Carolina Department of Transpor- tation (NCDOT) and DSAtlantic Corpora- tion, a Raleigh-based architectural/engineer- ing firm, are beginning the engineering and environmental study for the proposed second bridge to Oak Island in Brunswick County. The study will include alternative corridor evaluation, preliminary engineering, traffic analysis, environmental evaluations and the preparation of an environmental document. The purpose of this workshop is to initiate the project's public involvement program, to provide information concerning the environmental study process, to receive comments from the public and interested agencies concerning the project, and to introduce the members of the study team. Representatives of the NCDOT and DSAtlantic will be available to answer questions you may have concerning the project. The project study area is shown on the adjacent map. The proposed second bridge will provide a two-lane roadway through the project area, connecting SR 1500 (Midway Road) at NC 211 and Middleton Avenue in Long Beach. This will include a high-level bridge over the Intracoastal Waterway, improvements to Middleton Avenue from the bridge to the beach (SR 1104), including replacement of the bridge over Davis Canal. The length of the project is approximately five miles. Second Bridge to Oak Island 5511 Capital Center Drive Suite P-100 Raleigh, NC 27606 .1 111 1 I Join us for the first Citizens Informational Workshop for the proposed Second Bridge to Oak Island Study. Representatives from the North Carolina Department of Transportation (NCDOT) and the Engineering Firm of. DSAtlantic Corporation will be there to: • Initiate the project's Public Involvement Program • Provide information concerning the engineering and environmental study • Receive input from the public and interested agencies • Introduce the members of the project team. ia"AQ1 1 1 1 1 North Carolina Department of Transportation Brunswick County March 23, 1995 4-7p.m. Town of Long Beach Recreation Center 3003 East Oak Island Drive I 1. 1 I 11 1 r c? N°°TM ?P Second Bridge to Oak Island ,v O Corridor Study ;pTQEnvironmental Documentation This information package details the project planning process and the public involvement program. This citizens work- shop is the first opportunity of several for the people of this community to be in- formed and to comment on this project. You are encouraged to view the project maps and displays. Please ask questions if you have any, and complete the enclosed questionnaire and comment sheet. Citizens Informational Workshop The North Carolina Department of Transportation (NCDOT) and DSAtlantic, a Raleigh-based architectural/engineering firm, are beginning the engineering and environmental study for the proposed second bridge to Oak Island in Brunswick County. The study will include alternative corridor evaluations, preliminary engineer- ing, traffic analysis, environmental evaluations, and the preparation of an environmental document. The purpose of this workshop is to initiate the project's public involvement program, to provide information concerning the environmental study process, to receive comments from the public and interested agencies concerning the project, and to introduce the members of the study team. Representatives of the NCDOT and DSAtlantic are available to answer ques- tions you may have concerning the project. The project study area is shown on the enclosed map. The proposed second bridge will provide a two-lane roadway through the project area, connecting SR 1500 (Midway Road) at NC 211 and Middleton Avenue in Long Beach. This will include a high-level bridge over the Intracoastal Waterway, improvements to Middleton Avenue from the bridge to the beach (SR 1104), including replacement of the bridge over Davis Canal. The length of the project is approximately five miles. March 23, 1995 Questions or Comments? Call the Toll-Free Project Hotline: 1-800-349-3721 SECOND BRIDGE TO OAK ISLAND Corridor Study and Environmental Document NC 211/SR 1500 to SR 1104 along Middleton Avenue Brunswick County State Project No. 6.804759 (TIP No. R-2245) Project Toll-Free Hotline 1-800-349-3721 North Carolina Department of Transportation Planning and Environmental Branch PO Box 25201 Raleigh, NC 27611 Corridor Project Overview Evaluation factors of the roadway will include engineering, environmental, social, and economic impacts of the proposed action. The NCDOT study will identify and evaluate several alternate corridors for the proposed roadway. Evaluation factors will include engineering, environmental, social, and economic impacts of the proposed action. The engineering portion of the study will focus on developing a series of safe and efficient build alternates based on the past, current, and future travel demands in the study window. Other alternatives to be evaluated in the study include the "No- Build" or "Do-Nothing" Alternative, the Improve Existing Facilities Alternative, and the Transportation Systems Manage- ment Alternative. The major environmental impacts to be investigated in this study include Air Quality, Floodplains, Noise, Protected Plant and Animal Species, Water Re- sources, and Wetlands. The environmental study will produce environmental docu- ments. Detailed environmental evaluations of the alternates will be presented in these reports along with comments and corre- spondence received from local, state, and federal agencies as well as the public throughout the study process. Social issues that will be analyzed include potential alterations to existing neighborhoods, community facilities, and recreational areas. An estimate of relocated residences, businesses, and non-profit organizations will be determined for each alternate. The effects of the project on the elderly, handicapped, transit-dependent, and minorities will also be addressed. The study will identify and assess impacts on architecturally and archaeologically impor- tant cultural and historic resources. The economic impacts on the local or regional economy such as the effects of the project on development and employment opportunities will be examined. Impacts of the proposed action on established business districts and highway-related businesses are also included in the study. Planning Process The planning process utilized by this study involves an interdisciplinary team to research and coordinate the environmental analyses and corridor location studies for the project. The intent of this process is to investigate all reasonable transportation alternatives and evaluate the merits of each, and to analyze the impacts to the manmade and natural environments. The planning process is divided into six phases. The first three phases will deter- mine the extent of the impacts, if any, to the project environment. It will also determine if one corridor obviously contains the least impacts and is preferred by the public, the project team, and interested government agencies. These issues will decide whether the more involved Environmental Impact Statement (EIS) will be required, or an Environmental Assessment (EA) and Finding of No Significant Impacts (FONSI) will be adequate. PHASEI Data Collection, First Citizens Informa- tional Workshop, Inventory of Planning Issues, Document Community Concerns, Transportation Needs Study See Planning Process, page 3 2 f_9 I ?r r I' r 1 V Planning Process, cont'd The workshop completes this phase of the study. Phase I will have included introduc- ing the study to the public, compiling an inventory of planning issues and community concerns, gathering necessary project related information, and determining the transportation needs in the study area. PHASE 2 Alternatives Identification, Initial Field Investigation, Corridor Refinement, Second Citizens Informational Workshop, Selection of Corridors for Further Study Phase 2 has begun with the development of the preliminary corridors based on data collected and issues identified. Initial field investigations, which also have begun, will aid in refining and evaluating the prelimi- nary corridors. The results of this study will be presented at the next Citizens Informa- tional Workshop. Based on evaluation of corridors and public comment, the final corridors for detailed study will be se- lected. PHASE3 Functional Design, Detailed Field Studies, Environmental Analysis, Technical Reports Late this spring, engineering functional design, detailed field studies, and environ- mental determinations will begin for each of the final corridors. Technical reports will be prepared during the summer in many of the areas of environmental evaluation. PHASE 4 Draft Environmental Impact Statement (DEIS) or Environmental Assessment (EA), Pre-Hearing Open House, Corridor Public Hearing Once all studies are completed, the DEIS/ EA will be written. This report will sum- marize and compare the results of the engineering and environmental evaluations. It is scheduled for publication in early 1996. After a complete review of the report, a Pre-Hearing Open House will be held to discuss the results, and soon afterward, a Corridor Location Public Hearing will be held. PHASES Review Comments of the DEIS/EA, Review Public Hearing Transcript, Selection of Preferred Alternative After the Corridor Public Hearing, final selection of a Preferred Alternative will be made by the NCDOT with input from local, state, and federal agencies, local officials, and the public. All comments on the environmental document and the Public Hearing transcript will be reviewed during the decision process. PHASE6 Final Environmental Impact Statement (FEIS) and Record of Decision, or FONSI During the final phase of the project, the final environmental document will be written for the Preferred Alternative and final comments on the project will be solicited. This would complete the planning process for the project. Should a build alternative be selected as the Preferred Alternative, the design process will follow the plan- ning process. During design, additional opportunities for public involvement will occur. natural environments. For questions or concerns regarding the Corridor Project, call the Toll-free Hotline at: 1-800-349-3721 3 The intent of the planning process is to investigate all reasonable transportation alternatives and evaluate the merits of each, and to analyze the impacts to the manmade and 1 1 I e ! O ! o , ! ;Jr, ... Public Involvement Program Public Involvement Opportunities: • Citizens Informational Workshops • One-On-One Discussions • Comment Sheets • Small Croup Meetings • Project Hotline • Newsletters • Citizens Advisory Committee • Pre-Hearing Open House • Corridor Public Hearing The early and continued involvement of the citizens who may be affected by the study's outcome is a vital part of the planning process for the proposed project. Public involvement provides citizens with the opportunity to participate in the planning process and to convey comments to the NCDOT, as well as provides the opportunity to understand the overall study process and schedule. A project questionnaire and comment sheet is provided with this brochure. Please answer the questions on the sheet, and provide any other pertinent project comments. The sheet can be returned to the comment box at the registration table or can be mailed to the address on the back of the questionnaire. Persons indicating their name and address on the comment sheet and checking the appropriate space will be added to the project mailing list to receive newsletters and upcoming meeting an- nouncements. A toll free project hotline is available for public comments, suggestions, or inquiries concerning the corridor study. The hotline service is available Monday through Friday during regular business hours. If it is inconvenient to call during office hours, send a note to the address on the comment sheet and it will be delivered to the appropriate study team member, who will respond to the inquiry as quickly as possible. In addition to this workshop, there will be two more citizens workshops for this study. At the second Citizens Informational Workshop, the project team will present the detailed study corridors and receive public comment for the selection of a preferred alternative. By the Pre-Hearing Open House, the environmental document will be approved, and the project team will present the preferred alternative. The project team invites public comment on these documents, which will then be used for approval of the Preferred Alternative. Throughout the project, small group meet- ings will be held with interested citizens organizations, neighborhood associations, business groups, and civic groups. Meet- ings for informal presentations and question and answer sessions can be arranged by contacting the project hotline. Project newsletters will be published and mailed to all persons on the mailing list periodically throughout the study. The newsletters are designed to keep citizens informed of the study progress between public informational workshops. Finally, the public will be invited to comment formally on the project during the Corridor Public Hearing. Prior to the hearing, an informal Pre-Hearing Open House will be held to present and discuss the results of the engineering and environmental evaluations. Each of the above elements of the public involvement program are important aspects of this corridor study, and the overall highway planning process. The public involvement program is an integral part of this study, and citizens are encour- aged to participate fully. 6 I? r Next Steps in the Process Document Community Concerns: Continue identifying community concerns within the study area through public work- shops, project comment sheets, question- naires, and small group meetings. Transportation Needs Study: Identify existing and future transportation needs in the study area based on existing and projected development and travel demand. ' Alternatives for Detailed Study: Recommend alternatives for detailed study based on preliminary evaluations, citizen r comments, and local, state, and federal agency comments. Detailed Field Studies: Field studies have begun for the study area. When the detailed study alternatives have been recommended, detailed field studies will continue on those alternatives. i1 Technical Reports: Engineering and environmental analyses on the study alternatives will begin soon. Technical reports will be written to docu- ment the findings and results. Functional Designs: Functional Designs on recommended study alternatives will begin soon. Second Citizens Informational Workshop: Hold second citizens informational work- shop to present the detailed study corridors and discuss the potential impacts found by the analyses thus far. We also will receive public comment for the selection of a preferred alternative. k FOR FURTHER INFORMATION: I I Write: q?T Call: Second Bridge to Oak Island DSAtlantic Corporation 5511 Capital Center Drive Suite P-100 Raleigh, NC 27606 Watch your mail for project updates and the announce- ment of the next workshop. Project Toll-Free Hotline 1-800-349-3721 7 NOTES , I 11 1 I I 1 8 I 1 ' 1. Do you think there is a need for the roadway and second bridge to Oak Island? If you answer "No", please use the next sheet to comment about the project. '1. If "Yes", please rate the following factors that describe the needs for improvements: 1 i ` h Mk,Ye, r4".Y ??Qrv ye t.t C Y?r "i d•,. b Not important Mildly important Very important Increase FrafficCa acia? y Itti rbve`=" ecess to>''OakIrland Improve Emergency Eyacuatton from the, MEN I Comments: 1 2. Please rate the following Alternate Corridor Evaluation factors: I I } N Yrg4WLf?11VtlJ4?% §` N Engmeermg Facto ra a ,i P- Not important Mildly important Very important y N ry ?' £^;i °9y, x f J) 8"1 T Ltd 4 dPi °39 b ?' T affcGa ci :os jT atfic Safe s- a $T°,GonstnictioiiGosts ? ?? ? F? $R GYg r ? a nvtronmental Impacts 1 01 W Atrt? Y UM En ' a g ?-t., s? +N?ti=?U?? Y 4n gbr:-x yr AL'~T? "'? a ?sha ot "'? P t dtPlant d?' l l?S ?` ? r ec e sn r ntma ectes ?? -? *Flbod lams ?z R u , p ? y A, aMW Sr?? dS ?f `tR §? ? u W 4 r WJ .i, ? 9y~ YJ e T SaCl '?n11M 4d? ??"Sd4 A ti Y ? A° l + tmnRflt 11t1e3??? ? 4 +n { a ?? ?3?T3 AI M r den ' ? YP 0Y _ ?ya?' A ?yr?,''L Q?a$?t?.f??e}.t/T{{.,?'(p. e? ?$eessSY a(? um x Cti 'C6^r` `am??9Rt?'i l°.i$.S?9KdAYvOC= PROJECT QUESTIONNAIRE AND COMMENT SHEET Citizens Informational Workshop - March 23, 1995 I I I I .1 ......?.....1 •IP:,.....",- e o , o 15'\" 0. o? O' J 77-7 I H IOU 000 s:g:ei?i a i ' i CJ I J LJ I I 3. A study area map showing the preliminary corridors is provided on this form for you to indicate any areas on the map which should be avoided and why. ' Additional Comments and Information: Name _ Address City/State/Zip Please add my name to the project mailing list .1 I IL F7 I I a It I I I ?``?? o<_Ta?••?? NEWSLETTER NONrII C Second Bridge to Oak Island NCDOT TIP NO. R-2245 October, 1995 Issue No. 2 ' This newsletter is the second in a series of newsletters published by the NCDOT (North Carolina Department of Transportation) to inform citizens about the second bridge to Oak Island corridor study. This newsletter presents the three alternatives selected for detailed studies and describes the next phase in our planning process. I 1. I I 1 I I. I I I 1 Detailed Study Corridors Selected Six preliminary corridors were presented for your review and comment at the first citizens informational workshop. Follow- ing the workshop, these corridors and a seventh corridor connecting West Oak Island Drive to Sunset Harbor were evaluated. Four of the corridors were elimi- nated from further consideration based on environmental and social impacts, engineering design criteria, as well as input from the regulatory agencies and local citizens. Three corridors were retained for detailed study. The detailed study corridors are shown on the inside map. The detailed study corridors, Alternatives A, B, and C, will be presented to you at our second citizens informational workshop on November 28, 1995. As Phase 3 begins, the study team will be conducting the detailed environ- mental field studies and develop- ing the functional design plans for each corridor. Technical reports will be prepared documenting these studies. The Planning Process The planning process is currently in the third of six phases: Phase 7 Data Collection Inventory of Planning Issues First Citizens Informational Workshop Document Community Concerns Transportation Needs Study Phase 2 Alternatives Identification Initial Field Investigation Corridor Refinement Selection of Corridors for Detailed Study Second Citizens Informational Workshop Phase 3 Functional Design Detailed Field Studies Environmental Analysis Technical Reports Phase 4 Environmental Assessment (EA) Pre-Hearing Open House Corridor Public Hearing Phase 5 Review Comments of the EA Review Public Hearing Transcript Selection of Preferred Alternative Preliminary Design Phase 6 Finding of No Significant Impact (FONSI) Second Citizens Informational Workshop The second citizens informational workshop for the second bridge to Oak Island corridor study will be held on Tuesday, November 28, 1995, from 4 to 7 p.m., at the Town of Long Beach Recreational Center, 3003 East Oak Island Drive. The purpose of this informal work- shop is to inform citizens of project progress and to present the detailed study corridors for comments. Aerial photographs showing the detailed study alternatives and other displays will be presented at the workshop. Members of the study team will be available to discuss the project and answer questions. Steering Committee In addition to the informational workshops and local officials meet- ings, a technical steering committee was established to assist in the environmental impact study. This committee reviews and comments on major steps in the planning process such as the selection of detailed study corridors. END I Xt i?4 \ I l \ 1 SUNSET HARBOR _ WEST OAK ISLAND DR .i.•'?. ?... ?' _ -M 1104 (WEST REACH ERM ATLANTIC OCEAN LEGEND DETAILED STUDY CORRIDORS CORRIDOR A CORRIDOR B rt CORRIDOR C 0 Qy SMITH it-... SIT -... _...-...-.. EAST '".: LONG BEACH BEGIN PROJECT ALTERNATIVES A. B 11 1 .5 1 16 ATIVE A ERNATIVES B AND C I BRUNSWICK COUNTY AIRPORT / ' OnRACOASTAL WATERWAY \ j. 1 ST 1217 33 // l: I UUU \ 1,1: IWIZA06^ \ r ATER I ??.. II II ,12! \ i MRJTARY OCEAN TERMINAL SUNNY POINT . 0911 ,e ?` -' "m _. _ NORTH CAROLINA BEA HN DEPARTMENT OF TRANSPORTATION ` - ENVIRONMENTAL ASSESSMENT SECOND BRIDGE TO OAK ISLAND km R-2245 =Mw? Brunswick County, North Carolina mile I DETAILED STUDY CORRIDORS The committee is made up of representatives from NCDOT; Federal Highway Administration; the Town of Long Beach; Brunswick County; US Army Corps of Engineers; NC Department of Environment, Health and Natural Resources; Division of Environmen- tal Management and the Wildlife Resources Commission; US Fish and Wildlife; National Marine Fisheries; Coastal Area Manage- ment Agency (CAMA); and DSAt/antic. Researchers in Your Area With the start of Phase 3, surveyors and field investigators will begin collecting data in the study area, and will require access to property along the corridors. These individuals are performing standard procedures required to collect data for studies such as the hydraulic analysis, noise analysis, wetland determinations, and endangered species investiga- tions. Should this pose a problem, please contact a member of the study team at 1-800-349-3721. We thank you in advance for your cooperation. You CAN Be Involved! In addition to the citizens workshop, you also can participate in the study process in the following ways: Arrange a small group meeting for your group or organization. The study team will be available throughout the study process to meet and discuss the project through informal question and answer sessions with neighborhood groups and civic organizations. For details, call the second bridge to Oak Island corridor study hotline at: 1-800-349-3721. m Add your name to the mailing list. If you would like c ure newsletters or meeting notices and have not already requested to be on the mailing list, you may sign up at the workshop. If you are unable to attend the workshop, call the project hotline at 1-800-349-3721. Call or write the study team. The toll-free project hotline provides direct contact between citizens and the NCDOT study team. Comments and suggestions will continue to be documented and considered during the study. Call the project hotline at: - 1-800-349-3721. You also may write to the second bridge to Oak Island corridor study or the NCDOT at the following address: ift?r Second Bridge to Oak Island 801 Jones Franklin Road Suite 300 Raleigh, NC 27606 Second Bridge to Oak Island 801 Jones Franklin Road Suite 300 Raleigh, NC 27606 I 1 y'WOF Np0.TH 4gO`7 Second Bridge to Oak Island Corridor Study Z '9'yFN70F"ANSfO`~' Environmental Documentation November 28, 1995 Second Citizens Informational Workshop ' This is the second citizens informational workshop for the second bridge to Oak Island corridor study. The purpose of this informal workshop is to inform citizens of the project's progress and to present the detailed study corridors for comment. Displays showing the location of the de- tailed study corridors, roadway typical sections, traffic forecasts, the planning process and the public involvement plan are presented for your review. Representatives of the North Carolina Department of Transportation (NCDOT) and DSAtlantic are available to answer questions you may have concerning the project. The proposed second bridge will provide a ' two-lane roadway through the project area, connecting SR 1500 (Midway Road) at NC 211 and Middleton Avenue in Long Beach. This will include a high-level bridge over the Intracoastal Waterway, improve- ments to Middleton Avenue from the bridge to the beach (SR 1104), and re- placement of the bridge over Davis Canal. The length of the project is approximately fivemiles. The detailed study corridors are shown on the enclosed reap. This information pack- age details the project planning process and the public involvement plan This citizens informational workshop is the second of several opportunities for the citizens of this community to be informed about and to comment on this project. You are encour- aged to view the project map and displays and to discuss your concerns with the members of the study team. A comment sheet is enclosed for your convenience. Questions or Comments? Call the Toll-Free Project Hotline: 1-800-349-3721 SECOND BRIDGE TO OAK ISLAND Corridor Study and Environmental Document SR 1104 along Middleton Avenue to NC 211/SR 1500 Brunswick County State Project No. 8.2231201 (TIP No. R-2245) Project Toll-Free Hotline 1-800-349-3721 North Carolina Department of Transportation Planning and Environmental Branch PO Box 25201 Raleigh, NC 27611 I I Evaluation of Build Alternatives Evaluation factors for the project include engineering, environmental, social and economic impacts of the proposed action. The NCDOT study has identified and will evaluate three Build Alternatives in an Environmental Assessment. You will find them labeled as Alternative A, Alternative B and Alternative C on the enclosed map. Evalua- tion factors will include engineering, social, environmental and economic impacts of the proposed action. The engineering portion of the study will focus on evaluating the build alternatives based on the past, current and future travel demands in the study window. Engineering evaluation factors include cost estimates, level of traffic service, roadway safety, constructability, and maintenance ofexisting traffic. The major environmental impacts to be investigated in this study include Air Quality, Floodplains, Noise, Protected Plant and Animal Species, Aquatic and Terrestrial Ecology, Water Resources, Wetlands, Farmlands, Hazardous Wastes, and the visual environment. Social issues that will be analyzed include potential alterations to existing neighborhoods, community facilities and recreational areas. An estimate of relocated residences, busi- nesses and non-profit organizations will be determined for each alternative. The effects of the project on the elderly, handicapped, transit-dependent and minorities also will be addressed. The study will identify and assess , impacts on architecturally and archaeologically important cultural and historic resources. The economic impacts on the local or regional economy such as the effects of the project on growth, development and employment oppor- tunities will be examined. Impacts of the proposed action on established business districts and highway-related businesses are included in the study. The results of these evaluations will be docu- mented in an Environmental Assessment (EA) and Finding ofNo Significant Impact (FONSI). Detailed Environmental evaluations of the alternatives will be presented in these documents along with comments and corre- spondence received from local, state, and federal agencies as well as the public through- out the study process. The planning process utilized by this study involves an interdisciplinary team to research and coordinate the environmental analyses and corridor location studies for the project. For questions or concerns regarding the Corridor Project, call the Toll-free Hotline at: 1-800-349-3721 Planning Process te planning process utilized by this study involves an interdisciplinary team to research d coordinate the environmental analyses ?id corridor location studies for the project. The intent of this process is to investigate all Sasonable transportation alternatives, to aluate the merits of each and to analyze the impacts of each on the human and natural It vironments. The planning process is in the third of six Vs: ' Phase t Data Collection Inventory of Planning Issues First Citizens Informational Workshop Document Community Concerns Transportation Needs Study Phase 2 Alternatives Identification Initial Field Investigation Corridor Refinement Selection of Corridors for Detailed Study Second Citizens Informational Workshop Phase 3 ?i Functional Design Detailed Field Studies Environmental Analysis ' Technical Reports Phase 4 Environmental Assessment (EA) Pre-Hearing Open House Corridor Public Hearing Phase 5 Review Comments of the EA Review Public Hearing Transcript Selection of Preferred Alternative ' Preliminary Design Phase 6 Finding of No Significant Impact (FONSI) ax preliminary corridors were presented for to ur review and comment at the first citizens ormational workshop. Following the rkshop, these corridors and a seventh trridor connecting West Oak Island Drive to Sunset Harbor were evaluated. Four of the corridors were eliminated from further con- sideration based on initial investigations of the project area environment. The study team wants your comments on the three corridors retained for detailed study. These comments will be considered along with comments from local, state, and federal regulatory agencies in the selection of a preferred alternative. Detailed field studies and environmental determinations are under way for each of the detailed study corridors. Technical reports are being prepared in many of the areas of environmental evaluation. Once the studies are completed an Environ- mental Assessment will be prepared. This report will summarize and compare the results of the engineering and environmental evalua- tions. The Environmental Assessment (EA) is scheduled for publication in mid 1996. A Corridor Location Public Hearing will be held approximately two months following distribu- tion of the EA. After the Corridor Public Hearing, the final selection of a Preferred Alternative will be made by the NCDOT with input from local, state, and federal agencies, local officials, and the public. All comments on the Environmen- tal Assessment and the Public Hearing transcript will be reviewed during the decision process. Should a build alternative be selected, the preliminary design will be completed during Phase 5. The Finding ofNo Significant Impact will be written during the final phase ofthe project. This would complete the planning process for the project. During design, additional opportunities for public comment will occur. The intent of the planning process is to: Orinvestigate all reasonable transportation alternatives Qr evaluate the merits of each alternative analyze the impacts to the human and natural environments 3 N? I y QY 1 1 ? Qy r ? 1 SUNSET HARBOR ?r OAIc ?... i'''ce.' ?... ?•.. SR 1104 [NEST BEACH myn ATLANTIC OCEAN LEG DETAILED STUDY CORRIDORS ® CORRIDOR A - CORRIDOR B CORRIDOR C r .. .. 9i IIO{ BSI LONG BEACH SMITH I 1 .5 1 1 I ATIVE A JTERNATIVES B AND C 11 1 MILITARY OCEAN TERMINAL SUNNY POINT l BRUNSIMC( COUNTY 1 NUCLEAR POWERPLANT, /i 33 .?...? SR 1217 ??. \ \ .:. ?:. 33 daM SR 1102 \- / BRUINS IRPORT LINTY ? i II f ?. ? \ I ^ (C..._..._..._..._..._..._. i1 l ?. IN7RACOASTAL wA7ERWAr ... ...i I IJ, A-TERw Qe I.I. ??d3 133 J `T cr?R,l ll MN North Carolina _ Hof Transportation YAUPON Err lronmental Assessment BEACH I I km 11 mile Second Bridge to Oak Island Bnnawk;k County, North Carolina Detailed Study Corridors F%we 1 I I Public Involvement Program ' Public Involvement Opportunities: • Citizens Informational Workshops • One-On-One Discussions • Comment Sheets • Small Croup Meetings • Project Hotline • Newsletters • Corridor Public Hearing 6 The continued involvement of the citizens interested in the study's outcome is a vital part of the planning process for the proposed project. Public involvement provides citizens with the opportunity to participate in the planning process, to convey comments to the NCDOT and to understand the overall study process and schedule. A project comment sheet is provided with this brochure for your convenience. The comment sheet can be returned to the comment box at the registration table or can be mailed to the address on the back. Persons indicating their names and addresses on the comment sheet and checking the appropriate space will be added to the project mailing list to receive newsletters and upcoming meeting announce- ments. A toll-free project hotline is available for citizen comments, suggestions or inquiries concerning the corridor study. The hotline service is available Monday through Friday during regular business hours. If it is inconve- nient to call during office hours, send a note to the address on the comment sheet and it will be delivered to the appropriate study team member, who will respond to the inquiry as quickly as possible. Throughout the project, small group meetings can be held with interested citizens organiza- tions, neighborhood associations, business groups and civic groups. Meetings for , informal presentations and question and answer sessions may be arranged by contact- in the roj t h tli g p ec o ne. Periodically, project newsletters will be published and mailed to all persons on the mailing list. The newletters are designed to keep citizens informed of the study progress between public informational workshops. Finally, the public will be invited to comment formally on the project and the detailed study corridors during the Corridor Public Hearing. I I I Each of the above elements of the public involvement program are important aspects of this corridor study and the overall highway planning process. The public involvement program is an integral part of this study and ' citizens are encouraged to participate fully. 17 L Next Steps in the Process ocument Community Concerns: dentify community concerns within the study area through public workshops, project com- Inent sheets and small group meetings. Detailed Field Studies: it Quality, Traffic Noise and Natural Re- ources field studies are being completed for t e three detailed study alternatives. I I I 1 I I I 1 Technical Reports: Technical reports are being written to docu- ment the findings and results of the Air Quality, Traffic Noise and Natural Resources field studies. Secondary and Cumulative Impacts: Potential impacts from development resulting from the new roadway are being studied. Watch your mail for project updates and announcements. Write: ??p Second Bridge to Oak Island DSAtlantic Corporation 801 Jones Franklin Road Suite 300 Raleigh, NC 27606 Call Project Toll-Free Hotline 1-800-349-3721 1 7 NOTES 8 I NORTH CAROLINA DEPARTMENT OF TRANSPORTATION Second Bridge to Oak Island Environmental Documentation State Project No. 8.2231201 (NCDOT TIP No.. R-2245) PROJECT QUESTIONNAIRE AND COMMENT SHEET r Citizens Informational Workshop - November 28, 1995 I Which of the three detailed study corridors do you prefer and why? C I I I a 1 F 1 I 1 I Mal ems...` \ AJ ? S \ li 1 1 SUNSET HARBOR / ...?:: - _.. wssT oAlc rsLwo ors, _...i' ?.• ?...? SR 1104 CHEST BEACH MVE1 3 ATLANTIC OCEAN LEGEND DETAILED STUDY CORRIDORS ® CORRIDOR A _ CORRIDOR B .oi',tei?s a CORRIDOR C I I I DA / . ..-..._... SR W E4ST ..?: LONG BEACH i SMITH ?1 1 ATIVE A ARERNATIVEH B AND C Ul i \ 1 I 1 km I mile ../ BRUNSWICK COUNTY AIRPORT INTRACOASTAL WATERWAY _...? ...? _..._...--, 17 J 1 'INO is 133 1 ?. SR 1217 ?.• i. 33 I. j I l! r 1: ji: _111 ? -... _... ? UUUUU _.IN PoWT call I? 11 6 l 1 YAUPON BEACH 111UTARY OCEAN TERMINAL SUNNY POINT BRUNSWICK COUNTY NUCLEAR POWERPLANT i' ?1167WAY .r r \`-? North Carolina Department of Transportation Environmental Assessment Second Bridge to Oak Island &Mwk k County, North Carolina Detailed Study Corridors FkK" 1 Additional comments and information: Name Address City/State/Zip Please check the box below if it applies. ? I did not receive a newsletter; therefore, please add my name to the project mailing list. I 1 1 i i i i i 1 APPENDIX C REFERENCES 1 1 1 1 1 1 1 1 I REFERENCES ' American Association of State Highways and Transportation Officials, Washington, DC, 1994. Policy on Geometric Design of Highways and Streets. ' Ashe, W.W. and G. Pinchot. 1897. Timber trees and forests of North Carolina. N.C. Geological Survey Bull. 6. M.I. & J.C. Stewart, Public Printers: Winston. ' Barnett, J. and R. Dennington. 1992. Return to longleaf. For. Farmer 52(1): 11-12. Barnhill, W.L.; S. Evans, D. Knight, J. Vrana, H. Hassell, G. Simpson, and W. E. Spruill. 1986. Soil Survey of Brunswick County, North Carolina. Soil Conservation Service, US Dept. of Agriculture. US Govt. Print. Off., Washington, D.C. 120 p. and map. Belanger, R. P. and R.L. Anderson. 19--. A guide for visually assessing crown densities of loblolly and shortleaf pines. USDA For. Serv. Res. Note 5E-352. p.2. Blank, G.B. and R.R. Braham. 1996. Second Bridge to Oak Island, Brunswick County, North Carolina, State Project 8.2231201, Natural Resources Technical Report. NCDOT, ' Raleigh, NC. Prepared by DSAtlantic, Corporation. Raleigh, NC. 38 p. ' Boschung, H.T., Jr.; J.D. Williams; D.W. Gotshall; D.K. Caldwell; and M.C. Caldwell. 1983. The Audobon Society field guide to North American fishes, whales, and dolphins. Alfred A. Knopf: NY. 848 p. Brown, P.M. 1985. Geologic Map of North Carolina. N.C. Geol. Survey, Dept. of Natl. Res. and Comm. Dev., Raleigh. Brunswick County Airport, Southport, 1992. North Carolina Master Plan Update. Brunswick County Chamber of Commerce, 1993. Brochures, Historical articles. Brunswick County, North Carolina Land Use Plan, 1993 Update. Brunswick County, Zoning Ordinance and Partial Development Code. Bull, J. and J. Farrand, Jr. 1977. The Audobon Society field guide to North American birds. I Carolina Business, March 1995. "Community Focus-Brunswick County" Christensen, N.L. 1988. and W.D. Billings (eds.). Press. 434 p. Vegetation of the Southeastern Coastal Plain. In Barbour, M.G. North American Terrestrial Vegetation. Cambridge University R-1 I REFERENCES (Continued) Carslon, E. November 22, 1995. The Brunswick Beacon, "DOT Funds Study of Wilmington Bypass Impact in Brunswick County. Conant, R. 1975. A field guide to reptiles and amphibians of eastern/central North America. Houghton Mifflin Co.: Boston. 429 p. Cowardin, L. M., V: Carter, F. C. Golet, and E. T. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. FWS/OBS-79/31. Fish and Wildlife Service, U.S. Dept of Interior: Washington, D.C. 103 p. Department of Environment, Health and Natural Resources. Division of Land Resources 1994. Permitted active and inactive mining operations in North Carolina as of June, 1994 North Carolina Geological Survey. Open file report 94-4. Dolman, J.D. and S.W. Buol. 1967. A studyof organic soils (Histosols) in the tidewater region of North Carolina. Bul. No. 181, N.C. Agric. Expt. Sta., Raleigh. 52 pp. Environmental Laboratory. 1987. Corps of Engineers wetland delineation manual. Technical report Y-87-1, U. S. Army Engineers Waterways Exp. Sta., Vicksburg, MS. 206 p., appendices. Eyre, F.H. (Ed.). 1980. Forest Cover Types of the United States and Canada. Soc. Amer. For., Washington, DC. 148 p., map. Federal Highway Administration, (FHWA). 1988. Manual on Uniform Traffic Control Devices for Streets and Highways. Federal Highway Administration. March. 1983. Noise Barrier Cost Reduction Procedure Stamina 2.0/Optima-User's Manual, FHWA No. FHWA-DP-58-1. Federal Highway Administration, (FHWA), USDOT. Title 23 Code of Federal Regulations (CFR), Part 772, Procedures for Abatement of Highway Traffic Noise and Construction Noise. Hayes, P. 1996. Second Bridge to Oak Island, Brunswick County, North Carolina, State Project 8.2231201, Secondary and Cumulative Impacts Technical Memorandum. NCDOT, Raleigh, NC. Prepared by DSAtlantic, Corporation. Raleigh, NC. Henry, V. G. 1989. Guidelines for Preparation of Biological Assessments and Evaluations for the Red-Cockaded Woodpecker. US Fish and Wildlife Service, Southeast Region, Atlanta, GA. 13 p. appendices. R-2 ' REFERENCES (Continued) ' Herring, Ethel and Carolee Williams. 1983. Fort Caswell: In War and Peace. Broadfoot's Bookmark, NC. Husch, B., C. I. Miller, and T. W. Beers. 1972. Forest Mensuration. The Ronald Press ' Co., NY. 410 p. Johnson, T. G. 1990. Forest Statistics for the Southern Coastal Plain of North Carolina, ' 1990. U.S.D.A., For. Serv. Res. Bull. 5E-11. 52 p. Kramer, P.J. and T.T. Kolzlowski. 1960. Physiology of Trees. McGraw-Hill Book Co., ' New York. 642 pp. LeBlond, R. 1994. Preserve design for Boiling Spring Lakes Wetland Complex, Brunswick ' County, North Carolina. The Nature Conservancy, Carboro, NC. Lee, Lawrence. 1978. The History of Brunswick County, North Carolina. Martof, B.S., W.M. Palmer, J.R. Bailey, and J.R. 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