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O ~ , - ~ I _ ~ - ~ Q 1 e~ a • a a m~ 1\ - p0a ~f - O D V~ oa \ - - ~ _ o D _r~ - D - - O ~ ~ _ I ~ v ` N - N o as ~ - ~ ~ " _ _ - _ - _ _ . , 14+ + 12+00 10+82 10+00 + 18+00 16+70 15+47 54 13 00 +9921+46 19+92 18 79 /29+90 29+09 28+00.:27+25 25+99 24+86 z . 33}36 ~Q - 24+ 23+99 22+99 21 86 N T 0 . AIITIGATIO~ SITE GR~DIl~G PLAN ~ 3a+35 `I" F R ~ 0 3q+99 - - - ^ , 36}9q 35+55 DARE cor~~~ N _ PROPOSED RELOCATION OF rC 11 FOIE AIII,ES SOL~I'H OF OREGON N , 0 3~+49 - - IIr'LET TO SIX AIILES SOI;TH OF OREGON L'~ZET b ~ i - STATE PROJECT 50.6.051029 ~ ' = p 3q+53 TIP N0. R-3213 ~ 39}99 FEBRLARl' L~95 u \ 40-c99 - 42}~Q Scale 1"=1n'' 6" Contour Intrr~xls 43}Op 4q+00 _ _ 4 A STATE OF NORTH CAROLINA JAMES B. HUNT, )R GOVERNOR DEPARTMENT OF TkANSPORTATION DIVISION OF HIGHWAYS P.O. BOX 25201, RALEIGH, N.C. 27611-5201 May 20, 1994 District Engineer Army Corps of Engineers P. O. Box 1890 Wilmington, North Carolina 28402 ATTENTION: Regulatory Branch R. SAMUEL HUNT III SECRETARY Dear Sir: Subject: Edgecombe County, Proposed Interchange at SR 1225 between Rocky Mount and Tarboro, Federal Aid Project No. NH-64(1) State Project No. 8.T290501, TIP No. R-0509GB, Corps Action ID. No. 199401137. On December 28, 1993, the North Carolina Department of Transportation requested that the subject project be authorized under Nationwide Permit 23 (Categorical Exclusion). The Categorical Exclusion document identified 6.7 acres of wetland impact associated with this project. On January 25, 1994, correspondence from your office was received indicating that because the project would cause "greater than minimal impacts to the environment", the project as was proposed could not be authorized under Nationwide Permit 23. It was further stated that a modified proposal which reduces wetland impacts could be submitted, and that wetland impact reduction could be accomplished through avoidance, minimization and/or compensatory mitigation. The Departments avoidance, minimization, and mitigation efforts are detailed below. AVOIDANCE No-Build Alternative Wetlands could be fully avoided with the "no-build alternative. However, this alternative would prevent US 64 from being the fully controlled access facility it was planned and designed to be. The existence of one at-grade intersection on what otherwise is a fully controlled access facility is dangerous because drivers do not expect interference from crossing traffic. Therefore, this alternative would neither provide a safe alternative nor fulfill the projects purpose. Construction in Fewer Quadrants Because wetlands exist in all four quadrants of the existing intersection, modification of the proposed diamond- type design to eliminate construction in one or more quadrants would not avoid all wetland impacts. Ramp Realignment in the Diamond Configuration Realignment of the ramps to circumvent the wetlands is not feasible because, according to the hydric soils maps for the project area, the wetlands extend well beyond the proposed construction limits. Bridging Bridging of all impacted wetlands is not feasible from a cost perspective. MINIMIZATION While not considered to be active impact minimization, the 6.7 acre impact listed in the environmental document has been reduced to 4.0 acres by calculating impacts based on actual construction footprint and not full right of way limits. Eliminating Construction in One Quadrant Most of the wetland areas affected by this project lie in the two northern quadrants (see enclosed figure). There is no feasible design that would avoid construction in both of the northern quadrants. However, the proposed design could be modified to eliminate constructing in one of the northern quadrants by constructing a ramp and loop in the remaining northern quadrant. However, in the quadrant where the ramp and loop are constructed, the construction limits would extent further northward, thereby impacting more wetlands in that quadrant. The wetlands saved by eliminating construction in the "no-build" quadrant may not compensate for the losses in the "build" quadrant. Therefore, it is not certain that a modified diamond interchange design that eliminates construction in one quadrant will result in a net reduction in wetland impacts. Reducing Fill Slopes The current proposed design utilizes 4:1 cut/fill slopes in several places because a 4:1 side slope is the steepest slope allowable without use of guardrails. The use of 2:1 slopes would require guardrails, which would impair sight distances at the ramp terminals, thereby posing a safety hazard. However, there are three areas away from the ramp terminals which are currently utilizing 4:1 fill slopes through wetlands where NCDOT agrees to use 2:1 slopes with guardrails. The reduction of the fill slopes in these areas should not significantly jeopardize the safety of the interchange, and will lead to a 0.32 acre reduction in wetland impacts. The areas of fill slope reduction are as follows (see enclosed figure) Ramp A The 4:1 slopes on Ramp A can be steepened to 2:1 from right ramp station 12+00 to 18+00 and from left ramp station 11+00 to 20+00. The Department does not propose to steepen the slopes from left ramp station 6+00 to 11+00 because the same amount of wetlands are impacted by both the 2:1 and 4:1 side slopes. Ramp B No changes are proposed at this ramp since 2:1 side slopes are already proposed through the wetland areas. Ramp C The 4:1 slopes on Ramp C can be steepened to 2:1 from right ramp station 10+00 to 12+00. The Department does not propose to steepen the slopes from.left ramp station 10+00 12+00 because there is only a minimal amount of wetland in this area between the ramp and the mainline, and this area likely to be of relatively low quality after the ramp is constructed. Therefore, on the left side of Ramp C, the Department does not believe that modifying the slopes is justified when the small amount of wetlands that could be saved by reducing side slopes are considered. Ramp D The Department also does not slopes on Ramp D can be justified amount of wetlands in this area. to is believe that modifying the when considering the small Minimization Efforts Already Undertaken The project was designed to minimize the area within the construction limits, and therefore minimize the area of wetland impact. The ramp lengths, degree of horizontal and vertical curvature, vertical clearance of the bridge over US 64, and other design parameters are already at, or very close to, the minimum criteria allowable without compromising motorist safety. MITIGATION The North Carolina Department of Transportation proposes to include the 3.68 acres of wetland impacts associated with this project with those of the US 64 relocation between Tarboro and Everetts (R-2111 and R-2112A). A preliminary mitigation plan which details our mitigation efforts to date is being provided to the Raleigh Regulatory Field Office for their records. With the provided information on avoidance, minimization and mitigation in mind, The North Carolina Department of Transportation requests that the U.S. Army Corps of Engineers authorize this project under Nationwide Permit 23 (Categorical Exclusion). If you require any additional information or wish to discuss this matter further, please contact Mr. Doug Huggett at (919) 733-3141. Sincerely, tt ?Qui n , PE n anch Manager Planning and Environmental Branch BJO/dvh cc: Mr. Ken Jolly, COE-Raleigh Mr. John Dorney, NCDEHNR, DEM Mr. John Parker, NCDEHNR, DCM Mr. H. Franklin Vick, PE, Planning and Environmental Branch Mr. Kelly Barger, PE, Program Development Branch Mr. Don Morton, PE, Highway Design Branch Mr. A.L. Hankins, PE, Hydraulics Unit Mr. John L. Smith Jr., PE, Structure Design Unit Mr. Tom Shearin, PE, Roadway Design Unit Mr. D.R. Dupree, Division 4 Engineer Ms. Missy Dickens, Planning and Environmental Branch n X m m -I m r T D \ z O O 0 0 2 \ m m m I M z v s ; D -SC n ' 0?6 23 , 1 S. C. 4. 50 t>' I I: I 1 I -?r?FY I /? I I S 1 1 I x I Is 11 1 i t CS4F F I I I C. i ''' I I 1 1 O ,65-. $ 86 ? 1 I I 1 I V .33 I r? 11 I I I E5I , 1 'I 1 I I I .4 \\ 1 S ?. ? / / M• N Lll y ? 1 ? I III I ? 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T .Llr i i^ I I'• ? }I, ^I Sr .T 9+81.25 NP \ '1 11 ? I I. I 1:4• N 1 '? 1 I I I I ? ?II ar / I I I I 1'- ry / CS @+03.?r 1 1 I 1 I? CS Tt2??p c\, 1 -, I HIV: ?,?: X71 zl ' 1 I 1 , `1L4;1441 i? I ? ml , I ? I / 14.; 4441'0 I I 1 1 ? 1 /? tll?I`^0,.. I I I I I i 55p 1 I. I I I I i S.C.-2'00.00 ? l O a N 1--o-11P, mm ,• 0 t.A n s D z z O _ 3I D D z 3 O m m // Ln ya i. _ In I ? ? .A 0 !vq<N UT g CREEK 1.. v r n d1n91?1 ????? 1?N?dM _-GOdaaCT 3? 1 D -? v D N. C. DEPARTMENT OF TRANSPORTATION TRANSMITTAL SKIP DAT ? /y J TO: RE I. ?O/. OR ROOM. BLDG F. N E I / ( OM: R¢{. NR QOM, BLDG. ACTION ? NOTE AND FILE ? PER OUR CONVERSATION ? NOTE AND RETURN TO ME ? PER YOUR REQUEST ? RETURN WITH MORE DETAILS ? FOR YOUR APPROVAL ? NOTE AND SEE ME ABOUT THIS ? FOR YOUR INFORMATION ? PLEASE ANSWER ? FOR YOUR COMMENTS ? PREPARE REPLY FOR MY SIGNATURE ? SIGNATURE ? TAKE APPROPRIATE ACTION ? INVESTIGATE AND REPORT COMMENTS: i ve STATE OF NORTH CAROLINA DEPARTMENT OF TP ANSPORTATION JAMES B. HUNT. JR. SAM HUNT GOVERNOR DIVISION OF HIGHWAYS SECRETARY P.O. BOX 25201, RALEIGH. N.C. 27611-5201 December 28, 1993 D JAN - 5 District Engineer -?.? Army Corps of Engineers WETLANrS Gt?Ol'PP . 0 . Box 18 9 0 WATER UALITY SECTION Wilmington, North Carolina 28402 ATTENTION: Regulatory Branch Dear Sir: Subject: Edgecombe County, Proposed Interchange at SR 1225 between Rocky Mount and Tarboro, Federal Aid Project No. NH-64(1) State Project No. 8.T290501, TIP No. R-0509GB. Attached for your information are three copies of the project planning report for the subject project. The project is being processed by the Federal Highway Administration as a "Categorical Exclusion" in accordance with 2 CFR 771.115(b). Therefore, we do not anticipate reque ing affilindividual permit but propose to proceed under a Nationw111de Permit in accordance with 33 CFR 330 Appendix A?(B-2'3) ssued November 22, 1991, by the Corps of Engineers. The pr visions of Section 330.4 and Appendix A (C) of these r gulations will be followed in the construction of the proje We anticipate that 401 General Certification No. 2745 (Categorical Exclusion) will apply to this project, and are providing one copy of the CE document to the North Carolina Department of Environment, Health and Natural Resources, Division of Environmental Management, for their review. -4 f , If you have any questions or need additional information, please call Ms. Cyndi Bell at 733-3141. Sincerely, B. (J. (?_ Quinn,,/ PE Assi ant B nch Manager Plannind and Environmental Branch BJO/dvh cc: w/attachment Mr. Ken Jolly, COE-Raleigh Mr. John Dorney, NCDEHNR, DEM Mr. John Parker, NCDEHNR, DCM w/out attachment Mr. Kelly Barger, PE, Program Development Branch Mr. Don Morton, PE, Highway Design Branch Mr. A.L. Hankins, PE, Hydraulics Unit Mr. John L. Smith Jr., PE, Structure Design Unit Mr. Tom Shearin, PE, Roadway Design Unit Mr. D.R. Dupree, Division 4 Engineer Ms. Missy Dickens, Planning and Environmental Branch Mr. Davis Moore, Planning and Environmental Branch US 64 Proposed Interchange at SR 1225 Between Rocky Mount and Tarboro Edgecombe County Federal Aid Project NH-64(1) State Project No. 8.T290501 TIP No. R-509GB qR CATEGORICAL EXCLUSION U. S. DEPARTMENT OF TRANSPORTATION FEDERAL HIGHWAY ADMINISTRATION AND N. C. DEPARTMENT OF TRANSPORTATION DIVISION OF HIGHWAYS APPROVED: Date H. Franklin Vick, P.E., Manager r Planning and Environmental Branch, NCDOT 2 -o-s-t A &,f7 - PU Pi S Date Nicholas L. Gra P.E. ?ivisiod Administrator, FHWA US 64 Proposed Interchange at SR 1225 Between Rocky Mount and Tarboro Edgecombe County Federal Aid Project NH-64(1) State Project No. 8.T290501 TIP No. R-509GB 9k r CATEGORICAL EXCLUSION November, 1993 Documentation Prepared in Planning & Environmental Branch By: Mary ice Dic ens Project Planning Engineer CA Ro J. Wit on Stroud i ??•c'JE ASS i;? ?.2 41 Prof t Planning Unit Head SLAL _ • 6 -; ; G = 4Lu f i n V. Prevatt, P.E., Assistant Manager ilk ??i???,;.••`? Planning and Environmental Branch, NCDOT ?'••,,,ssis TABLE OF CONTENTS M`! r w PAGE I. Environmental Commitments .................................. 1 II. Need for the Proposed Project .............................. 1 A. General Description.. ... 1 B. Historical Resume and?Project?Status .................. 1 C. Existing Conditions ................................... 2 D. Stream Crossings ...................................... 2 E. Traffic Volumes ....................................... 2 F. Capacity Analysis ..................................... 3 G. Accident Analysis ..................................... 4 H. Thoroughfare Plan ..................................... 5 III. Description of Proposed Action ............................. 5 A. Proposed Improvements ................................. 5 B. Construction Detour .................................... 6 C. Drainage Structures ................................... 6 D. Estimated Costs ....................................... 6 IV. Alternatives to the Proposed Action ........................ 6 A. Recommended Alternative ............................... B. "Do Nothing" Alternative .............................. V. Effects to the Environment ................................. A. Land Use .............................................. 1. Existing Land Use... .................... 2. Prime and Important Farmland ..................... B. Socioeconomic Impacts ................................. 1. Neighborhood Characteristics ..................... 2. Economic Factors ................................. 3. Public Facilities ................................ 4. Relocations ...................................... 5. Social Impacts ................................... C. Historic and Cultural Resources ....................... 1. Archaeological Resources ......................... 2. Architectural/Historical Resources ............... 6 7 7 7 7 7 7 7 7 8 8 8 8 8 8 TABLE OF CONTENTS PAGE D. Natural Resources ..................................... 9 1. Biotic Communities ............................... 9 r, a. Terrestrial Communities ..................... 9 b. Aquatic Communities.. . .. .............. 13 » c. Summary of Anticipated Impacts .............. 13 2. Effects to Physical Resources .................... 15 a. Soils ....................................... 15 b. Water Resources.. ...................... 15 C. Flood Hazard Evaluation .................... 17 3. Jurisdictional Issues.... ...................... 17 a. Waters of the United States ................. 17 i. Summary of Impacts ..................... 17 ii. Permits ................................ 18 iii. Mitigation ............................. 19 b. Protected Species ........................... 19 i. Federally Protected Species............ 19 ii. Federal Candidate Species .............. 20 iii.. State Protected Species......... ..... 20 E. Traffic Noise and Air Quality .......................... 21 VI. CONCLUSIONS ................................................ 21 TABLES Table 1 - Levels of Service.. ....... ................... 3 Table 2 - Fauna Observed in the Study Area .... .... .. 9 Table 3 - Summary of Anticipated Biotic Community Impacts.. 14 Table 4 - Soil Summary.................... ...... ......... 15 Table 5 - Summary of Anticipated Impacts to Wetlands....... 18 ' Table 6 - Federal Candidate Species Listed in Edgecombe County.... ....... .............................. 20 Table 7 - State Protected Species Listed in Edgecombe County ........................................... 21 TABLE OF CONTENTS FIGURES Figure 1 - Vicinity Map Figure 2 - Interchange Configuration Figure 3 - Current and Projected Traffic Values Figure 4 - Photographs of Existing Conditions APPENDIX SHPO Correspondence t W. I. ENVIRONMENTAL COMMITMENTS A Section 401 General Water Quality Certification administered through the N.C. Department of Environment, Health, and Natural Resources will be required. In accordance with provisions of Section 404 of the Clean Water Act (33 U.S.C. 1344), a permit will be required from the United States Army Corps of Engineers for the discharge of dredged or fill material in "Waters of the United States". The subject project is classified as a Categorical Exclusion. It is anticipated that the Provisions of Nationwide Permit 33 CFR 330.5 (A) 23 (categorical exclusions) will apply to this project. Final permit decisions, however, are left to the discretionary authority of the United States Army Corps of Engineers. NCDOT will conduct the necessary coordination with the Corps of Engineers regarding the required permit and mitigation plans that may be required. All standard procedures and measures will be implemented to avoid and minimize environmental impacts. Approximately 6.7 acres of wetlands are expected to be impacted by implementation of this project. Impacts will be minimized by Best Management Practices. II. NEED FOR THE PROPOSED PROJECT A. General Description The subject project consists of constructing a diamond-type interchange at the existing intersection of US 64 and SR 1225 between Rocky Mount and Tarboro in Edgecombe County (see Figure 1). This project is included in the NCDOT 1994-2000 Transportation Improvement Program (TIP) as a portion of Project R-509 that has yet to be constructed. The project is scheduled to be let in Fiscal Year 1994. The TIP funding for this interchange_is estimated at $3,500,000, all of which is for construction, since NCDOT already owns the right of way (acquired under Project R-509). On the basis of planning and environmental studies, it is not anticipated this project will have a significant detrimental effect on the human environment. The proposed project will cause no significant changes in route classification and land use and is not controversial in nature. Therefore, it is concluded that a Categorical Exclusion is applicable. B. Historical Resume and Project Status The relocation of US 64 between Rocky Mount and Tarboro as a four-lane divided facility (R-509) was completed in 1990, with the exception of two interchanges (at SR 1207 and SR 1225). Right of way (not including the required easements, see Section III.A.) for these interchanges was acquired with the right of way for R-509 with the 2 intent to construct the interchanges in the future. These crossings remained as at-grade intersections at the completion of the initial construction of Project R-509. The construction of the interchange at SR 1207 (TIP Project R-509GA) is currently underway. Project R-509GA was let in January, 1993 and is expected to be completed in December, 1993. The subject project, R-509GB, by providing an interchange at SR 1225, is the last remaining phase necessary to make US 64 a fully controlled access facility in accordance with the original intent of the R-509 project. C. Existing Conditions US 64 in the project vicinity is a 4-lane divided facility with 12-foot lanes,-10-foot shoulders (2 feet paved and 8 feet grassed), and a 46-foot grassed median. This segment of US 64, from Rocky Mount to Tarboro, was completed in May of 1990 as a new location project. The roadway has 330 feet of right of way width. The facility currently has partial control of access, but will have full control of access upon the completion of the interchanges at SR 1225 and SR 1207. The posted speed limit is 55 miles per hour. This segment of US 64 is part of the proposed National Highway System, and it is classified as a Rural Principal Arterial in the Functional Classification System. SR 1225 is a two-lane facility with a 20-foot pavement (10-foot lanes) and 4-foot grass shoulders. The posted speed limit is 55 miles per hour. The existing right of way is 60 feet. SR 1225 is classified as a Rural Minor Collector in the Functional Classification System. There is no control of access along SR 1225. Photographs of the existing conditions in the project vicinity are shown in Figure 4. D. Stream Crossings Walnut Creek and an unnamed tributary to Walnut Creek pass under US 64 in the vicinity of the proposed intersection. Walnut Creek is currently conveyed under US 64 by a 66-inch concrete pipe west of SR 1225 and the tributary is conveyed by a 60-inch concrete pipe east of SR 1225. Just downstream of where Walnut Creek crosses US 64, the creek passes under SR 1225 through a 60-inch concrete pipe. E. Traffic Volumes The current average daily traffic utilizing US 64 in the project vicinity is 11,200 vehicles per day, and it is projected that this figure will increase to 22,200 vehicles per day by the year 2012. Currently, 2,400 vehicles per day use SR 1225, and 3,600 vehicles per day are expected to be using the facility in 2012. Figure 3 shows current and projected (years 1992 and 2012) average daily traffic volumes, turning movements, design hourly volume (DHV), and percentages of trucks for this project area with the proposed interchange in place. 3 F. Capacity Analysis The concept of level of service is defined as a qualitative measure describing operational conditions within a traffic stream and how these conditions are perceived by motorists and/or passengers. A level of service definition generally describes these conditions in terms of such factors as speed, travel time, freedom to maneuver, traffic interruptions, comfort, convenience, and safety. Six levels of service are defined for each type of facility for which analysis procedures are available. They are given letter designations from A to F, with level of service A repre- senting the best operation conditions and level of service F representing the worst. A capacity analysis, using estimated peak hour demands, was performed for the existing unsignalized intersection for 1992 volumes, the ramp junctions of the proposed interchange for 1992 and 2012 volumes, and the ramp terminals under unsignalized and signalized scenarios for 1992 and 2012 volumes. Table 1 presents the results of the capacity analyses. TABLE 1 LEVELS W SERVICE Existing Unsi nalized Intersection (1992 Traffic Volumes Movement LOS NB (SR 1225 Left F NB (SR 1225) Through E NB (SR 1225) Right A SB (SR 1225) Left E SB (SR 1225) Through E SB (SR 1225) Right A EB (US 64) Left A WB (US 64) Left A Rams Junctions of Proposed Interchange Ramp LOS Year Junction Ramp US 64 1992 EB On B A EB Off B A WB On B A WB Off A A 2012 EB On C C EB Off C C WB On C C WB Off B C 4 Ramp Terminals of Proposed Interchanae Stop-si gn Control Ramp LOS Terminal Movement 1992 2012 WB WB Left A D WB Right A A NB Left A A EB EB Left A C EB Right A A SB Left A A Signalized Control Ramp LOS Terminal 1992 2012 WB A A EB A A An unsignalized intersection analysis shows that although SR 1225 right-turning traffic is currently operating at LOS A, through and left-turning traffic on SR 1225 is operating at levels of service E and F (see Table 1). The ramp junction analyses show that, upon completion of the interchange, US 64 will be operating at LOS A and three of the four ramps will be operating at LOS B, while one (the westbound off ramp) will be operating at LOS A. In the year 2012, US 64 and three ramps will be operating at LOS C; the westbound off ramp is anticipated to be operating at LOS B. Therefore, according to the Highway Capacity analysis, an interchange will greatly increase the efficiency of traffic flow. Once the interchange is in place, all movements of both ramp terminals are expected to operate at LOS A under stop-sign control. Under 2012 volumes, the LOS drops to D for westbound left-turns and to C for eastbound left-turns. However, if signalized, the terminals would be expected to operate at LOS A for both 1992 and 2012 volumes. The anticipated capacity conditions at the ramp terminals under stop-sign control are acceptable for the design period. Nevertheless, signalization remains an option if deteriorating capacity conditions in the future necessitate it. G. Accident Analvsis An intersection accident analysis was conducted for the subject intersection for the time period from June 1, 1990 through July 31, 1993. Nine accidents occurred during this period, none of which were fatal. Of the 9 accidents, 8 (89%) were accidents caused by failure to yield at the stop signs on SR 1225. The total accident rate is 1.90 accidents per 100 million entering vehicles (acc/100mev). An interchange at this site is expected to reduce the accidents caused by failure to yield at stop signs. By providing a grade separation, the interchange will remove the conflict between through movements on US 64 and through movements on SR 1225. Although the interchange will replace this one conflict point with six conflict points (two ramp terminals and four ramp junctions), each of these six conflict points will be carrying lower traffic volumes travelling at lower speeds. Therefore, it is anticipated that the six conflict points provided by the interchange will be less hazardous than the one conflict point at the existing at-grade intersection. Also, the interchange ramps will remove the need for left turning traffic to cross multiple lanes of traffic. The interchange should therefore facilitate movement through this junction and increase safety. H. Thoroughfare Plan The subject project is not included in an existing thoroughfare plan since currently there is no adopted thoroughfare plan for Edgecombe County. However, in the thoroughfare planning report for Edgecombe County that is in the process of being prepared, the subject interchange is mentioned as a programmed TIP project. III. DESCRIPTION OF PROPOSED ACTION A. Proposed Improvements The project calls for constructing a diamond-type interchange at the existing intersection of US 64 and SR 1225 between Rocky Mount and Tarboro in Edgecombe County (see Figure 2). This will involve the construction of a bridge to carry SR 1225 over US 64 and the construction of four ramps. The cross-section of SR 1225 between the ramp terminals will consist of three 12-foot lanes with 12-foot shoulders (4 feet paved). The bridge over US 64 will have 48 feet of clear roadway width (three 12-foot travel lanes with a 6-foot lateral clearance on each side). The bridge, which will be 239 feet long, will have a minimum vertical clearance of 16.5 feet. North of the intersection with the westbound ramps and south of the intersection with the eastbound ramps the cross-section of SR 1225 will taper to a 32-foot pavement width (two 12-foot lanes with 4-foot paved shoulders) and then to a 20-foot cross-section (two 10-foot lanes) to tie in with the existing cross-section. The ramp terminals will be stop-sign controlled. Although right of way for the subject project was purchased under TIP Project No. R-509, temporary construction easements need to be acquired for erosion control measures in the northeast and northwest quadrants of the interchange. 6 B. Construction Detour No on-site temporary detour will rather, traffic will be detoured along accessing US 64 from SR 1225 will be SR 1207. C. Drainage Structures be built as a part of this project; existing routes. Traffic currently routed to US 64 via US 64-A and Walnut Creek and an unnamed tributary to Walnut Creek pass under US 64 in the vicinity of the proposed interchange. The confluence of the two streams is just north (downstream) of the project. Walnut Creek is currently conveyed under US 64 by a 66-inch concrete pipe, and the tributary is conveyed under US 64 by a 60-inch concrete pipe. Based on preliminary hydraulic analysis, these pipes appear to be hydraulically adequate, and it is recommended that they be retained. A detailed assessment of hydraulic adequacy and structural integrity of the existing structures will be made during final hydraulic design. Just downstream of where US 64 crosses Walnut Creek, there is a 60-inch pipe to convey the creek under SR 1225. This existing pipe is undersized,-and it is located where the proposed northern interchange ramps will intersect SR 1225; therefore, the existing pipe will be replaced with a 66-inch pipe at a location just south of the existing crossing location on SR 1225. This will require a minor channel change through the interchange (see Figure 2). This proposed rechannelization may change as hydraulic design is finalized. NCDOT will conduct the necessary coordination with the United States Fish and Wildlife Service regarding any stream change. Five additional hydraulic structures, all pipes with a diameter of 66 inches or smaller, will be constructed to convey water under the interchange. D. Estimated Costs The proposed interchange's estimated cost of $3,500,000, all of which is for construction, is the same as the 1994-2000 TIP cost (see section II.A.). No right of way cost is included, since all right of way was purchased previously. IV. ALTERNATIVES TO THE PROPOSED ACTION A. Recommended Alternative The recommended alternative is to build a full diamond interchange that will carry SR 1225 over US 64. Right of way is already owned for the proposed interchange. This alternative conforms to the concept of the fully controlled access facility that was intended when US 64 was designed and constructed. B. "Do Nothing" Alternative US 64 was planned and constructed to be a fully controlled access facility. The "do nothing" alternative would not allow full implementa- tion of this freeway concept. In addition, conflicts between through traffic on US 64 and SR 1225 would not be eliminated. For these reasons, this alternative is not recommended. V. EFFECTS TO THE ENVIRONMENT A. ' Land Use 1. Existing Land Use The immediate vicinity of the subject project is rural and undeveloped. The proposed interchange, which replaces the existing at-grade intersection, is not likely to affect the existing land uses or development patterns in its vicinity. 2. Prime and Important Farmland The proposed interchange will be constructed within the existing right of way. Because that land had been previously committed to non-agricultural uses, no consideration of farmland impacts under the Farmland Protection Policy Act is required. B. Socioeconomic Impacts 1. Neighborhood Characteristics The proposed project is located in Edgecombe County. Edgecombe County is located in the eastern section of the state and is bounded by Martin, Pitt, Wilson, Nash, and Halifax Counties. The intersection of US 64 and SR 1225 is situated near the cities of Rocky Mount, Tarboro, and Princeville in a rural and sparsely populated environment. Based on the 1990 census report, Edgecombe County has a total population of 56,558. Rocky Mount has a population of 48,997, Tarboro has a population of 11,037, and Princeville has a population of 1,652. 2. Economic Factors According to the North Carolina Employment Security Commission, Edgecombe County had a total labor force of 31,180 during the month of July, 1992. Out of this total number, 28,780 persons were gainfully employed. This left an unemployment total of 2,400 or 7.7 percent. 8 3. Public Facilities This proposed action will not adversely impact any public facilities. 4. Relocations The proposed project will not require the relocation of farms, residences, or businesses. 5. Social Impacts The proposed project will not disrupt social cohesion, and it will not interfere with public facilities and services. C. Historic and Cultural Resources 1. Archaeological Resources The NCDOT archaeological staff have prepared a report documenting the findings of an archaeological survey which was conducted in order to locate and evaluate archaeological resources within the project area in accordance with FHWA procedures for compliance with historic preservation legislation. The State Historic Preservation Office (SHPO) has concurred with the results of the survey which are summarized in the subsequent paragraph (see the--= SHPO concurrence letter on page A-1 of the Appendix). The subject interchange will affect relatively little land that has not already been altered by previous activity. No new archaeological sites were found in the survey. Since the project as currently planned will have no effects on any archaeological sites that are on or are eligible for listing on the National Register of Historic Places, no further archaeological work is recommended. There are no visible remains or features that would be appropriate for public display and interpretation or the prehistoric preservation in place as a public exhibit. Therefore, Section 4(f) of the Department of Transportation Act-(Federal-Aid Highway Act as amended) will not apply to this project. 2. Architectural/Historical Resources This project is subject to compliance with Section 106 of the National Historic Preservation Act of 1966, as amended, implemented by the Advisory Council on Historic Preservation's Regulations for Compliance with Section 106, codified at 36 CFR Part 800. Section 106 requires that if a federally funded, licensed, or permitted project has an effect on a property listed on or eligible for the Nationalti Register of Historic Places, the Advisory Council on HistoricPreservation be given an opportunity to comment. 9 The area of potential effect (APE) of the subject project was reviewed by a NCDOT staff architectural historian. There are no buildings standing within the APE; therefore, no properties listed in or eligible for the National Register of Historic Places exist inside the APE. The SHPO has concurred with this finding (see page A-2 of the Appendix). Since there are no properties either listed on or eligible for the National Register of Historic Places within the APE, no further compliance with Section 106 is required. D. Natural Resources The project is located in a rural setting between Tarboro and Rocky Mount in Edgecombe County, which lies in the Coastal Plain Physiographic Province. Forested and disturbed parcels are present in the study area. The area supports a gently sloping topography. Elevation is approximately 30 feet above mean sea level (ms]). The proposed interchange crosses Walnut Creek. 1. Biotic Communities A description of flora and fauna observed, as well as those which are likely to occur in each community, is presented below. Common and scientific names are provided for each species listed; in subsequent references to the same organism, only the common name is given. Table 2 is a list of fauna visually observed (or spoor evidence) noted in the study area. Table 2. Fauna Observed in the Study Area COMMON NAME SCIENTIFIC NAME EVIDENCE common crow Corvus brach rh nchos visual gray squirrel Sc u s Caro inensis visual garden spider A rgio a sp. visual white-tail deer _ Odocoileus vir inianus spoor crayfish Cambarus, Procam arus spp. visual beaver Castor cana ensis dam mourning dove Zenaida macroaura call cardinal Cardinalis cardinalis call a. Terrestrial Communities Three biotic communities were identified in the study area: Disturbed Upland, Pine/Hardwood Upland, and Palustrine Hardwood Wetland communities. The following is a description of each community. 10 Disturbed Disturbed communities are located along road shoulders, and in upland areas and adjacent to US 64 and SR 1225. Vegetation growth is kept low from mowing. Dominant vegetation consists of various turf grasses including crabgrass (Di itaria sp.) and fescue (Festuca sp.). Sneezeweed (Helenium sp. was also observed. Immediately northeast of the interchange, south of Walnut Creek, is a disturbed area that has been filled. Dominant species include dog fennel (Eupaatorium ca illifolium), partridge pea (Cassia fasicula_ta), sericea (Lespe e?za cuneata , broomsedge (Andropogon virginicuss), and go e1 n (So?-go sp.). Approximately 5-foot tall sweetgum and loblolly pine saplings are present. The Disturbed community is open and supports small mammals such as the eastern mole (Scalo us a uaticus), which excavates tunnels where it forages for arthworms, insects, and plant material beneath the soil surface. Eastern cottontail (Sylvilaqus floridanus) and hispid cotton rat (Si modoonn his idus) are terrestrial inhabitants that predominantly consume vegetative matter. The opossum (Didelphis virginiana) forages on animal and plant matter. Reptiles such as the Carolina anole (Anolis carolinensis) and the black racer (Coluber constrictor) inhabit disturb e areas where there is adequate cover. The Carolina anole consumes small insects and spiders and the black racer forages on organisms such as insects, amphibians, and birds. Avian fauna anticipated to frequent the Disturbed community include common crow (Corvus brachvrhynchos) and red-tailed hawk (Buteo jamaicensis). The common crow scavenges dead animals as w_67 _as insects and plant material. The red-tailed hawk preys on small mammals. Pine/Hardwood The Pine/Hardwood community is located in all four quadrants. Several areas in the subject project support stands dominated by hardwoods, but generally, the study area supports pine dominated stands interspersed with hardwood species. These stands are immature (diameter at breast height (DBH) was less than 4 inches in the north quadrants). Loblolly pine (Pinus taeda) is the most common canopy species in the study area. Short-leaf pine (Pinus echinata) was encountered infrequently. Hardwood species fouun in of the canopy and understory include sweetgum (Liquidambar st?iraciflua), scarlet oak ( uercus coccinea), and white oak ( uercus a ba). Additionally, ob olly pine is present. Stands 11 are moderately dense. Mockernut hickory (Carya tomentosa) is present but uncommon. A small stand dominated by tip poplar Liriodendron tulipifera) and sweetgum is located adjacent to US 64. One very large willow oak (Q_ p hellos) that towers above the other vegetation is present in the northwest quadrant. Mid-canopy species, flowering dogwood (Cornus florida), and sourwood (Ox yde_ndrum arboreum) are scattered wTt n this community. Dangl_eberry Ga ussacia frondosa) is a very common shrub species and predominates the s rF uE der; winged sumac (Rhus cop?allina) and silverling (Baccharis halimifolia) are less common. Vines such as catbrier (Smi ax bona-nox an cow itch (Campsis radicans) are common in moderate densities. The herbaceous-ayer is very sparse; scattered occurrences of ebony spleenwort (Asplenium lat nueron) and erigeron (__E__r__igger??on sp.) were observed. A creeping, ow growing perennial, idge berry, (Chimaphila maculata) is present. Cane (Arundinaria gigantea) is dominant and very dense adjacent to a drainages. The southeast and southwest quadrants show evidence of recent disturbance. The Mixed Hardwood/Pine community in the southwest quadrant is dominated.primarily by a young canopy of southern red oak (Q. falcata) and water oak (Q_ nniigrraa). Low bush blueberry (Vacciniu sp.), ), sweet gallberry (Ilex coriacea), sassafras (Sassa rasa idum), and wax myrtle (M r ci ceriTe-ra) are typical - surb species present. The Mixed Hardwood/Pine community comprises the majority of this quadrant., The Pine/Hardwood community supports adequate cover and foraging opportunities for wildlife. Mammalian fauna such as the white footed mouse (Peromyscus leuco us_) consumes available nuts, berries, seeds, insects, and other animal material. The gray squirrel, another common species, is a tree climber that forages primarily on plant material; however, its adaptive capabilities enable it to vary its diet according to what is available. The omnipresent opossum is likely to inhabit this community in addition to the Disturbed community, where there is adequate food. The white-tailed deer (Odocoileus vir inianus) is a browser that forages on available vegetation. It prefers areas that are interspersed between forested tracts and disturbed sites. The slimy salamander (Plethodon gluti?nosus) is an amphibian that burrows under ground cover such as stones, and leaf litter. In addition, the spring peeper (Hyla crucifer), another small amphibian, may also inhabit the litter a? yer of this community. Reptiles such as the five-lined skink (Eumeces fasciatus) utilizes logs, rocks, and other matter for breeding and cover. Typical avian fauna that may be seen include bobwhite (Colinus virginianus), common crow, red-tailed hawk, turkey vu t-ure (Cathartes aura), hairy woodpecker (Picoides villosus), and barred owl ( i varia). 12 Palustrine Hardwood Forest The Palustrine Hardwood Forest is located in the floodplain of Walnut Creek and its tributaries. The Palustrine Hardwood Forest community is dominated by several hardwood species. Red maple (Acer rubrum), black gum (Nyssa sylvatica), and sweetgum are dominant with lesser amounts of pumpkin ash (Fraxinus profunda). Canopy coverage is dense and very little light reaches the ground. Swollen tree trunks and multiple trunk specimens are present. Tag alder (Alnus serrulata) is scattered adjacent to the creek banks. White bay (Magnolia vir iniana) and American holly (Ilex opaca) were commonly encountered in the shrub/understory layer. The ground was covered by numerous black gum seedlings. Herbaceous species observed include scattered populations of lizard's tail (Saururus cernuus), sensitive fern (Onoclea sensibilis), cardinl-diLobelia cardinalis), notweed Poonuum unctat?um), and royal fern (Osmunda re alis var. spectabilis). Woolgrass (Scir us cyperinus)i is found in clumps in the wettest areas. Dodder (Cuscuta sp.), a common parasitic vine, was observed around other vegetation. The floodplain in the northeast quadrant is disturbed (abandoned bridge approachways are present) and supports a dense stand (at eyelevel) of cane, blackberry (Rubus sp.), and Japanese honeysuckle (Lonicera Japonica). FartWer,east in the same quadrant, the area supports a densely vegetated wetland community dominated by black willow (Salix nigra), tulip poplar, water oak, and willow oak. Stands 6-f cane are very dense in this area. Cinnamon fern (Osmunda cinnamomea) is common at ground level. Muscadine (Vitis rotun ifolia) and catbrier (Smilax rotundifolia) vines are dense in a layers of this community. Permanent wildlife residents of this community are closely associated with water. Mammalian species likely to occur include beaver (a dam was noted during field surveys), muskrat Ondatra zibethicus), and raccoon (Procyon lotor). These three species consume available plant material; wever, the raccoon also forages on crayfish and other invertebrates. A variety of amphibians are likely to be found in the Palustrine Hardwood Forest. Salamanders such as the marbled salamander (Amb stoma opacum), southern dusky salamander (Desmo nathus aenus , two and three-lined salamanders (Eurycea bis ineata and E. uttolineata), dwarf salamander (E. - quadridigitata), and mud salamander Pseudotriton montanus) may be found under logs, in leaf litter, or along the stream bank. Frogs and toads such as the Fowler's toad (Bufo woodhousei), southern cricket frog (Acris ryllus), spring peeper (H la crucifer), green frog (Rana c aml itans), pickerel frog Rana pa ustris), and southern nTeopar frog (Rana sphenocephO-a) inhabit stream edges, and many breed in wooded swamps. 13 The snapping turtle (Chelydra serpentina), eastern mud turtle (Kinosternon subrubrum), Florida cooter (Chrysemys floridana), and spotted- turtle (Clemmys ug ttata) are typical reptiles that live in or near water. The mud snake (Farancia abacura), redbelly water snake (Nerodia erythrogaster), and brown water snake (Nerodia taxispilota) inhabit streams and quiet waters, typica of the study area. Avian fauna such the belted kingfisher (Me acer le alc on), prothonotary warbler (Prontonotaria citrea), barre owl Strix varia), great blue heron Ardea herd as), green heron (Butorides striatus), and wood duck (Ai sponsa) are commonly fou?n in communities such as the Palust it ne Hardwood Forest. b. Aquatic Communities Walnut Creek and its tributary are small and support slow flowing water. Occasionally, water may flood into the surrounding floodplain. Organisms that occur at Walnut Creek are dependent on water for some part of their life cycle. The following fish are documented (Menhenick, 1991) as occurring in the Tar River downstream of the project: chain pickerel (Esox niger), redfin pickerel (Esox americanus), golden shiner (Notemi onus crysoleucas), eastern spry minnow (Hybognathus reg?iu??s), shiners (Notro ii_s sp.), creek chubsucker (Erimyzon ?oblon us), suckermouth redhorse, silver redhorse (Moxostoma pappillosum and M. anisurum), pirate perch (A hre o erus sayanus), eastern mosquitofish (Gambusia ho brookii , bluespotted sunfish (Enneacanthus gloriosus -sunfish Lepomis sp.), and darters (Etheostoma sp. . Many of the species likely to occur in the Palustrine Hardwood Forest are common as well in the aquatic community. In addition, a crustacean, the crayfish (Cambarus and Procambarus spp.), was observed in Walnut Creek in t Fe study area. C. Summary of Anticipated Impacts Construction will impact the Disturbed Upland, Pine/Hardwood Upland, and Palustrine Hardwood Wetland communities. Preliminary estimates of biotic community impacts are presented in Table 3. 14 Table 3. Summary of Anticipated Biotic Community Impacts (Acres) Quadrant Plant Community DU PHU PHW TOTALS NE 7.7 6.4 2.8 16.9 SE 5.0 4.9 1.2 11.1 NW 4.3 6.6 1.5 12.4 SW 4.0 12.3 1.2 17.5 TOTALS 21.0 30.2 It( 6.7 1) 57.9 DU Disturbed Upland PHU Pine/Hardwood Upland PHW Palustrine Hardwood Wetland Note: Impacts were assumed to extend throughout quadrants from the control of access line to US 64. The direct impact from construction is loss of vegetation and wildlife habitat. The contractor will be required to minimize removal of vegetation, especially outside of proposed fill/cut lines indicated on roadway-design plan sheets. Habitat loss may result in decreased utilization of the interchange interior and perimeter for foraging, cover, and food. In addition, construction will create barriers to normal faunal movements and will lead to changes in species diversity and community dynamics. As a result, organisms will be displaced and distribution patterns will change. The majority of wetland impacts are located in the northwest and northeast quadrants where the study area crosses Walnut Creek and the unnamed tributary. Efforts will be made to minimize construction impacts in these quadrants. In addition, sedimentation from erosion may impact filter feeders and nonmobile organisms in the tributary by deposition of soil material. Approximately 500 feet of Walnut Creek will be piped underneath the ramp in the northwest quadrant and under SR 1225. 15 2. Effects to Physical Resources Soil and water resource information in the study area is described below. a. Soils r Soils information was obtained from the Edgecombe County Soil Survey (Soil Conservation Service, 1979). Five soil mapping units are located in the study area. Mapping units are stated in Table 4. Table 4 . Soil Summary, Edgecombe County SYMBOL MAP UNIT . SLOPE (%) CLASSIFICATION GyD Gritney fine sandy loam 10-15 Non-Hydric Ly Lynchburg fine sandy loam - Hydric-Inclusions NoB Norfolk loamy sand 2-6 Non-Hydric Ra Rains fine sandy loam - Hydric WaB Wagram loamy sand 0-6 Non-Hydric The most common map units in the study area are Wagram loamy sand in upland areas and Rains fine sandy loam soils adjacent to Walnut Creek. Wagram loamy sand is a soil that formed in Coastal Plain sediments and is well drained. This soil is located on broad upland areas. Rains soils formed in Coastal Plain sediments and are poorly drained. Rains soils,are located on broad interstream areas and shallow depressions. b. Water Resources The project is located in the Tar-Pamlico River Basin. The project crosses Walnut Creek and an unnamed tributary in all four quadrants. Walnut Creek is approximately 4-7 feet wide and approximately 5-10 inches deep. The unnamed tributary is approximately 3-5 feet wide and drains into Walnut Creek in the northeast quadrant. The substrate of both creeks is composed of silt and sand. Walnut Creek has been disturbed in the northeast quadrant; fill material has been placed south of the creek. Walnut Creek originates less than one mile upstream of the study area and drains into the Tar River over 3 miles downstream of the subject project. Best usage classification of Walnut Creek and its unnamed tributary is WS-IV NSW (DEM, 1993). Best usage recommendations for Water Supply (WS-IV) waters are defined as water supplies which are generally in moderately to highly protected watersheds 16 and are suitable for all Class C uses. Best usage recommenda- tions for Class C waters include aquatic propagation and survival, fishing, wildlife, secondary recreation, and agriculture. Nutrient Sensitive Waters (NSW) is a supplemental classification which is defined as waters that require limitations on nutrient inputs. The Benthic Macro invertebrate Ambient Network (BMAN) is part of an ongoing ambient water quality monitoring program. Macroinvertebrates are sensitive to very subtle changes in water quality. This network addresses long term trends in water quality by measuring the taxa richness and the presence of organisms intolerable to water quality changes. Two BMAN surveys have been conducted in the Tar River, both downstream of the subject project, where Walnut Creek drains into the Tar River. The bioclassification of these samples was rated as good-fair. Neither High Quality Waters, Outstanding Resource Waters, nor waters classified WS-I or WS- II are located in the study area or within 1 mile downstream. No critical areas are designated for WS-IV waters. A National Pollutant Discharge Elimination System permit (NPDES) is required for all point-source dischargers. There are no NPDES dischargers located within the project vicinity. Project construction may result in a number of impacts to water resources such as: - Increased sedimentation and siltation from construction. - Changes in light incidence and water clarity due to increased sedimentation from vegetation removal. - Changes in water temperature due to vegetation removal. - Alteration of water levels and flows due to interruptions and/or additions to surface and ground water flow from construction. - Increased concentration of toxic compounds from highway runoff, construction, and toxic spills. The following measures are recommended in order to minimize the impacts stated above: Strict adherence to Best Management Practices and Sedimentation Control guidelines will be required during the construction phase of the project. Vegetated berms/swales will be used where possible to minimize toxic discharge into streams. Non-point sediment sources will be identified and efforts made to control sediment runoff. 17 3. C. Flood Hazard Evaluation Edgecombe County is a participant in the National Flood Insurance Regular Program. Walnut Creek and its unnamed tributary in this area are not included in the detailed flood study for Edgecombe County. There are no buildings in the project vicinity with floor elevations below the 100-year flood level. The existing floodplain is rural and wooded, containing some wetland areas. The subject project will not encroach significantly onto the existing floodplain per 23 CFR 650.105(q). The locations of these stream crossings are above headwaters. Erosion and siltation will be controlled through the appropriate specification, installation, and maintenance of standard erosion control devices. Drainage patterns and groundwater will not be affected by this project. Jurisdictional Issues a. Waters of the United States The Corps of Engineers is responsible for regulating activities in "Waters of the US" based on the following laws: Section 10 of the Rivers and Harbor Act of 1899 (33 USC 403), Section 404 of the Clean Water Act (33 USC 1344), and Section 103 of the Marine Protection, Research, and Sanctuaries Act of 1972, as amended (33 USC 1413). Any action that proposes to impact "Waters of the US" falls under the jurisdiction of the Corps of Engineers; a federal permit is required for such actions. Generally, "Waters of the US" is defined as navigable waters, their tributaries, and associated wetlands and is subdivided into "wetlands" and "surface waters". Jurisdictional wetlands, as defined by 33 CFR 328.3, are those areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted to life in saturated conditions. Criteria for wetland determinations are described in the "Corps of Engineers Wetland Delineation Manual" (Environmental Laboratory, 1987). Any action that proposes to place fill into these areas falls under the jurisdiction of the US Army Corps of Engineers under the Provisions of the Clean Water Act (33 USC 1344). i. Summary of Impacts Impacts to Waters of the US are anticipated from proposed construction. Surface waters and wetland impacts are anticipated at Walnut Creek and a tributary of Walnut Creek, where pipes are proposed. 18 Wetland boundaries were determined from observations of hydrophytic vegetation, hydric soils, and wetland hydrology. The Palustrine Hardwood Wetland supports a Palustrine Forested Broad-Leaved Deciduous (PF01) system defined by Cowardin, et al. (1979). Table 5 summarizes wetland impacts. These estimates are preliminary and may change as additional design is performed. The wetland areas impacted by the subject project are generally represented by the undercut areas shown on Figure 2. Table 5 Summary of Anticipated Impacts to Wetlands Acres PLT COM NE SE NW SW TOTAL PF01 2.8 1.2 1.5 1.2 6.7 PLT COM Plant Community PF01 Palustrine Forested Broad-Leaved Deciduous ii. Permits A Nationwide Permit 33 CFR 330.5(a)(23) is likely to be applicable for the proposed construction. This permit authorizes any activities undertaken, assisted, authorized, regulated, funded, or financed, in whole or in part, by another federal agency or department where that agency or department has determined pursuant to the Council on Environmental Quality regulation for implementing the procedural provisions of the National Environmental Policy Act, that the activity, work, or discharge is Categorically Excluded from environmental documentation because it is included within a category of actions which neither individually nor cumulatively has a significant effect on the human environment, and the office of the Chief of Engineers has been furnished notice of the agency's or department's application for the CE and concurs with that determination. The final permit decision rests with the Corps of Engineers. NCDOT will conduct the necessary coordination with the Corps of Engineers regarding the required permits and the development of mitigation plans that may be required. A Section 401 General Water Quality Certification is required for any activity which may result in a discharge and for which a federal permit is required. State permits are administered through the N.C. Department of Environment, Health, and Natural Resources (DEHNR). 19 iii. Mitigation Anticipated placement of fill into Waters of the US is likely to be authorized under a Nationwide Permit. Generally, no mitigation is required based upon an interpretation of the Memorandum of Agreement (MOA) between the Corps of Engineers and the Environmental Protection Agency (1989). The final decision rests with the Corps of Engineers. b. Protected Species The US Fish and Wildlife Service (USFWS) and the North Carolina Natural Heritage Program (NCNHP) were consulted, and it was determined that no protected species are documented to occur in the study area. i. Federally Protected Species One federally protected species is listed by the USFWS for Edgecombe County as of May 13, 1993: the Tar River spiny mussel (Elli tdio steinstansana). A discussion of this species fo oll ws. Elliptio steinstansana (Tar River spiny mussel) Federally Endangered Animal Family: Unionidae Date Listed: 7/29/85 Distribution in N.C.: Edgecombe, Franklin, Nash, and Pitt Counties The Tar River spiny mussel has always been endemic to the Tar River drainage basin, from Falkland in Pitt County to Spring Hope in Nash County. Now it is limited to populations in Swift Creek and the Tar River in Edgecombe and Nash counties. This mussel requires a stream with fast flowing, well oxygenated, circumneutral pH water. The bottom must be composed of uncompacted gravel and coarse sand. The water needs to be relatively silt-free. This mussel is known to rely on a species of freshwater fish to act as an intermediate host for its larvae. The Tar River spiny mussel grows to an average length of 60 millimeters. Short spines are arranged in a radial row anterior to the posterior ridge on one valve and symmetrical to the other valve; others have two rows of spines on each valve. The nacre is pinkish (anterior) and bluish-white (posterior). Young specimens have an orange- brown peristracum with greenish rays, and adults are darker with inconspicuous rays. The shell is generally smooth in texture with as many as 12 spines that project perpendicularly from the surface and curve slightly ventrally. 20 BIOLOGICAL CONCLUSION: No Effect According to John Alderman, North Carolina Wildlife Resources Commission Wildlife Biologist, the Tar River spiny mussel occurs in streams greater than 20 feet wide. The Wildlife Resources Commission (WRC) has surveyed the project vicinity for the Tar River spiny mussel and reports that the study area does not support streams of suitable size for the Tar River spiny mussel. As noted in Section IV.D.2.b, Walnut Creek is less than 10 feet wide. No impacts to the Tar River spiny mussel will occur from proposed construction. ii. Federal Candidate Species A number of species are listed by the USFWS as candidate species in Edgecombe County (Table 6). These species are not afforded federal protection at this time, but their status may be upgraded in the future. The habitat column indicates the potential for their occurrence (based on availability of suitable habitat) in the study area. Table 6. Federal Candidate Species Listed in Edgecombe County Common Name Scientific Name Status Habitat Henslow's sparrow Ammodramus henslowii C2 Yes Yellow lance El i d o lanceoFa ta - C2 Yes Atlantic pigtoe Fusconaia mason C2 Yes Yellow lampmussel Lampsi is ca it osa C2 Yes C2 or Candidate 2: A taxon for which there is some evidence of vulnerability, but for which there are not enough data to support listing as endangered or threatened at this time. iii. State Protected Species Species identified as Threatened, Endangered, or Special Concern are afforded state protection under the State Endangered and Threatened Wildlife Species of Special Concern Act (1987) and the North Carolina Plant Protection and Conservation Act of 1979. No occurrence records of state protected species in the study area are found in the NCNHP files. Federal Candidate species in Edgecombe County that are state protected and may occur in the study area are presented in Table 7. 21 Table 7. State Protected Species Listed in Edgecombe County Common Name Scientific Name Status Yellow lance Elli tio lanceolata T Atlantic pigtoe Fusconaia masoni - T Yellow lampmussel Lamp s cariosa T T - Threatened: Any native or once-native species of wild animal which is likely to become an endangered species within the foreseeable future. Though all or some of these species may be present in the study area, no surveys were conducted. E. Traffic Noise and Air Quality The project is located within the Eastern Piedmont Air Quality Control Region. The ambient air quality for Edgecombe County has determined to be in compliance with the National Ambient Air Quality Standards. Since this project is located in an area where the State Implementation Plan does not contain any transportation control measures, the conformity procedures of the joint EPA/USDOT "Interim Conformity Guidance", dated June 7, 1991 and FHWA supplemental guidance memoranda dated July 27, 1992 and October 9, 1992 do not apply to this project. The project calls for the construction of an interchange at the intersection of US 64 and SR 1225 with all construction to be performed within the existing right of way limits. The project will not increase traffic volumes, and no additional through travel lanes are planned. Also, no receptors are located in the immediate vicinity of the project. Hence, the project's impact on noise and air quality will be minor. Noise levels in the immediate area could increase during construction, but the increase will be temporary. If vegetation is disposed of by burning, all burning shall be done in accordance with applicable local laws and regulations of the North Carolina SIP for air quality in compliance with 15 NCAC 2D.0520. This evaluation completes the assessment requirements of 23 CFR 772 (highway traffic noise) and of the 1990 Clean Air Act Amendments and the National Environmental Protection Act, and no additional reports are required. VI. CONCLUSIONS The construction of the proposed interchange at the US 64/SR 1225 intersection will benefit motorists by reducing the likelihood of accidents and by improving general traffic flow. The interchange will also fulfill the intended concept of full control of access along this segment US 64. It is therefore concluded that the proposed project will have an overall positive effect on the surrounding area. 22 Based upon the findings of this report, the proposed improvements are not expected to result in significant adverse environmental impacts. MAD/plr mD NORTH CAROLINA DEPARTMENT OF TRANSPORTATION DIVISION OF HIGHWAYS PLANNING AND ENVIRONMENTAL BRANCH US 64 PROPOSED INTERCHANGE AT SR 1225 EDGECOMBE COUNTY PROJECT R • 509GB FIG. 1 1 I i z m I .ii n 0 i Pl pp i u+v -+<c ;v rrt>o o t S -7?177 N N n N n :-"[1 WmWro N-Cn D pq) WON OW W W dot C:m CA 0 -0 P fiI ?+? N a CA CD O C-" O t0J1_ t0)D ! rn - 'CA O N S O r •P W C7 co ?O.4 N _I : 1,nu, rI mZ <c r D•v_ ,ry! xlm N v. N i tnl;c 4m W N N N OIWO °+ =J iA p 8 Cn nC NtoO 08N -+° G -in vp:O I,tr AOO jD?pOOW ??t-0 I OFD 1 N I = D I r, II r ? o IIF 11''ll,1 `n _FI TT l'I • In I I ? I ii v pp? p6c t 3 POT 382+80= RP. "C" POT 0+00 .2+5-- 50 44+50 / / Uoo I y, / 5 •i ? 11 't ?t 111111PI .n ?n I ?t I °? ?. I 1 II r . 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US 64 INTERSECTION WITH SR 1225 EDGECOMBE COUNTY R - 509 G B ESTIMATED 1992 / 2012 ADT (HUNDREDS) SR - 1225 I TTST 1 % - 18 DUAL 5% O DHV 10% 5 3 DIR 60% 9 5 k ;/P7 \16 7 11 112 12 7 102 ? US 64 222 20?f 11 204 US 64 12? ?.- 7 20 11 TTST 3% s s DUAL 5% -' DHV 10% DIR 60% 7 11 4 6 I 24 36 SR - 1225 1 FIGURE 3 R-509GB EDGECOMBE COUNTY US 64, LOOKING EAST FROM SR 1225 SR 1225, LOOKING NORTH TOWARD US 64 SR 1225, LOOKING SOUTH TOWARD US 64 rrrlmr n •? P? Oy. North Carolina Department of-Cultural Resources James G. Martin, Governor Patric Dorsey, Secretary December 30, 1992 Nicholas L. Graf Division Administrator Federal Highway Administration Department of Transportation 310 New Bern Avenue Raleigh, N.C. 27601-1442 Re: Archaeological Survey Report for US 64 interchanges with SR 1207 and 1225 between Rocky Mount and Tarboro, Edgecombe County, Federal-Aid Project No. NHF-64(4), TIP No. R-509 GA and GB, State Project Nos. 8.T290502 and 6.291008, ER 93-7789 Dear Mr. Graf: Division of Archives and History William S. Price, Jr., Director Thank you for your letter of November 23, 1992, and the accompanying archaeological survey report. For purposes of compliance with Section 106 of the National Historic Preservation Act, we concur that the following property is not eligible for the National Register of Historic Places under Criterion D: 31 ED307 This site is not eligible due to its disturbed condition and the sparsity of cultural material. In general the report meets our office's guidelines and those of the Secretary of the Interior 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, David Brook IJ Deputy State Historic Preservation Officer DB:slw cc: L. J. Ward T. Padgett 109 East Jones Street - L4 H Z • y'. • Z .? j t 17. Z' I 1 1 w i, North Carolina 27601-2807 A-1 D North Carolina Department of Cultural Resources James B. Hunt. Jr.. Governor Betty Ray McCain, Secretary November 2, 1993 Nicholas L. Graf Division Administrator Federal Highway Administration Department of Transportation 310 New Bern Avenue. Raleigh, N.C. 27601-1442 Re: US 64 proposed interchange at SR 1225, Edgecombe County, R-509GB Dear Mr. Graf: Division of Archives and History William S. Price, Jr.. Director On October 20, 1993, Historic Preservation Office staff met with North Carolina Department of Transportation representatives to discuss the above project. We reviewed the photographs of the one structure--a store--over fifty years of age in the area of potential effect and believe this structure is not eligible for the National Register of Historic Places. Thus, no historic properties are located in the area of potential effect for the 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, lD av1 Brook Deputy State Historic DB:slw cc: A. F. Vick Church Preservation Officer 109 Fast lows Street • Raleigh, North Carolina 27601-2807 A 2