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HomeMy WebLinkAbout20090451 Ver 1_Application_20090421-. 0 STATE OF NORTH CAROLINA 4N? l .c?VTrF?v ,9 DEPARTMENT OF TRANSPORTATION v BEVERLY EAVES PERDUE GOVERNOR April 17, 2009 U. S. Army Corps of Engineers Regulatory Field Office 151 Patton Avenue, Room 208 Asheville, NC 28801-5006 ATTN: Mr. David Baker NCDOT Coordinator Dear Sir: EUGENE A. CONTI, JR. SECRETARY ®Ir %U10 Subject: Application for an Individual Section 404 and Section 401 Water Quality Certification for the widening of NC 28 from North of SR 1323 (Riverview Street) to South of SR 1378 (Bennett Road) in Macon County. Federal Aid Project No. STP-28(1), Division 14, TIP No. R-2408B. Debit $570 from WBS 34427.1.1. Please see the enclosed ENG 4345, USFWS concurrence letter, permit drawing review meeting minutes, permit drawings, stream relocation plans, stream mitigation plan, design plans, State Stormwater Management Plan and Rapanos jurisdictional determination form for the above referenced project. An Environmental Assessment (EA) and Finding of No Significant Impact (FONSI) have been completed and distributed for this project. Also, an Indirect and Cumlative Effects Assessment was completed and distributed in August 2004. Additional copies of these documents are available upon request. The North Carolina Department of Transportation (NCDOT) proposes to widen the existing 2-lane highway, which has a 20-foot pavement width and 1 to 4-foot shoulders with a 2-lane highway with a 24-foot pavement width and 8-foot shoulders. The total length of the project is 2.7 miles. Purpose and Need: The purpose of the proposed project is to correct existing roadway deficiencies by improving the vertical and horizontal alignment and widening the travel lanes and shoulders. Due to the mountainous terrain, the road has steep drop-offs and large inclines on opposite sides of the road. This makes it difficult to travel along this road with narrow lanes and sharp curves that limit a driver's sight distance. The corridor is also a preferred route for tractor trailer trucks. With the amount and variety of vehicles that travel this route, the narrow lanes and sharp curves can reduce a driver's sight distance and result in an unsafe travel condition. Summary of Impacts: The project will permanently impact 0.09 acres of wetlands, 663 linear feet of streams, and temporarily impact 216 feet of streams. Impacts for this project are slightly higher than originally proposed in the FONSI, predominantly due to the relocation of Rocky Branch near Airport Road. Summary of Mitigation: The project has been designed to avoid and minimize impacts to jurisdictional areas throughout the NEPA and design processes. Compensatory mitigation for proposed impacts to jurisdictional streams and wetlands will be provided by on-site mitigation and the use of the Tulula Bog Mitigation Site. NEPA DOCUMENT STATUS An EA was prepared for this project in April 2004. A FONSI was prepared in September 2005. A Right of Way Consultation was completed in 2007. Additional copies will be provided upon request. MERGER PROCESS SUMMARY Due to its limited scope, this project was not a part of the formal merger process. However an informal 4B/4C meeting was held with agency personnel on September 24, 2008 to review the project. INDEPENDENT UTILITY The subject project is in compliance with 23 CFR Part 771.1110 which lists the Federal Highway Administration (FHWA) characteristics of independent utility of a project: (1) The project connects logical termini and is of sufficient length to address environmental matters on a broad scope, (2) The project is usable and a reasonable expenditure, even if no additional transportation improvements are made in the area; (3) The project does not restrict consideration of alternatives for other reasonably foreseeable transportation improvements. RESOURCESTATUS Wetland delineations: Potential wetland communities were investigated pursuant to the 1987 Corps of Engineers Wetland Delineation Manual. Mr. David Baker of the U.S. Army Corps of Engineers field verified the wetlands and surface waters on November 21, 2006. Written verification will be received at the time of permit issuance. Each impact is described below, in detail. Site and station numbers correspond with the permit (hydraulic) drawings included in this application. P 7A/U1P 7..A0..U....1 P......4 A-1'*-';H . P....o 7 -f7 J R-2408B Stream Classifications Permit Site No. Stream Name Sub-basin Stream Index No. Best Usage Classification IA UT to Little Tennessee River 04-04-01 2-(1) C 1,2 UT to Roc Branch 04-04-01 2-26 C 3,4 Rock Branch 04-04-01 2-26 C All streams in the project area are perennial Impacts to Waters of the United States Wetland Impacts & Descriptions Permit Permanent Temporary Miti ag tion Site No. ac ac R uired 3 0.05 -- Yes 5 0.04 Yes Total 0.09 - All wetlands impacted are riparian wetlands. Surface Water Impacts Permit Site Permanent Temporary Mitigation Stream Name No. 1 R uired IA UT to Little Tennessee River 9 31 Yes 1 UT to Rocky Branch 41 4 Yes 2 Roc Branch 65 46 Yes 3 Roc Branch 442 60 Yes F 4 Roc Branch 106 75 Yes Total 663 216 Utility Impacts No temporary or permanent jurisdictional impacts will occur to wetlands and streams from utilities for this project. PROTECTED SPECIES Plants and animals with Federal classification of Endangered (E) or Threatened (T) are protected under provisions of Section 7 and Section 9 of the Endangered Species Act of 1973, as amended. As of January 31, 2008, the U.S. Fish and Wildlife Service (USFWS) lists eight federally protected species for Macon County (Table 1). Biological conclusions of "May Affect-Not Likely to Adversely Affect" were rendered for Indiana bat, spotfin chub, Appalachian elktoe and little-wing pearlymussel. Concurrence was requested from USFWS on December 11, 2008 for these biological conclusions and will be forwarded as soon as it is received by the NCDOT. The bog turtle is listed due to similarity of Y_7dn9a R.d;.,;d„nl P,. it Pn.7 n!7 appearance and does not require a biological conclusion. Biological conclusions of "No Effect" were rendered for all remaining species. Table 1. Federally rotected species listed for Macon County. x It8 , . , ? -.. . n 1 Clemm s muhlenber 'i Bo turtle T S/A No Not Required M otis sodalis Indiana bat E Yes MA-NLAA Erimonax monachus S otfm chub T Yes MA-NLAA Alasmidonta raveneliana Appalachian elktoe E Yes MA-NLAA Pegias fabula Little-wing E Yes MA-NLAA . earl usseI Isotria medeoloides Small whorled No No Effect 0 onia Q ;; S iraea vir 'niana Vir ' s iraea No No Effect G mnoderma lineare Rock gnome lichen E No No Effect INDIRECT CUMULATIVE IMPACT ANALYSIS Existing rules for the 401 Water Quality Certification Program (15A NCAC 2H .0506(b)(4) require that the DWQ determine that a project "does not result in cumulative impacts, based on past or reasonably anticipated future impacts, that cause or will cause a violation of downstream water quality standards." An Indirect and Cumulative Effects Report (ICE) was completed for this project in 2004, and is included in this application. Effma iLgr.rlP::: .p-one:" .ax..wr spn.apu.iMw.,e..w "'? Mon_ :?: lgl4p?_?:? .?:?i ??:.: Pw.dEm VmxA Em 90 t? rvWEM ......... .. .. ...... .. U ». riW-78'm VWYW . ft": ?e?"M.. w pope Np nwe JOM Or Lh W W .. No p v D. "? I :6 .: pioMT . F?rpm? =u!: 6mpa yMiP Yrwba MtlYn bbl Ar y,hM? imf ?y I.PM... . MRp : TlisNtletl mlvnmmtl1s btl u?wlp?W bnI1rS tl.e Nwq 4WVNY MIbMbtlr PW??p?? mMabfmnl xAHry ?]Mpeis'PbQOMYnpe[b. Indirect Effects The proposed project is located within an unincorporated portion of Macon County to the north of the Town of Franklin, which is not covered by formal zoning or subdivision ordinances, so growth would not be controlled very stringently if it did occur. However, only a small amount of growth has occurred in the area or is expected for the foreseeable future, according to local planners. The area does not have public water or sewer, and there are currently no plans to extend services to that area. Due to the limited scope of the proposed project, a safety widening on existing location, and the rugged topography, which limits development in the area, the R-24ORR Wividunl Pormit Anntirniinn Pnon 4 nf7 proposed project is unlikely to stimulate complementary or intra-regional land development, or to cause a change in travel patterns in the area. There should also be no travel-time savings or change in access. As a result, indirect effects because of TIP Project R-2408B alone, and environmental impacts due to ICES, should be low or minimal. Cumulative Effects Direct impacts associated with the project that are not avoided, minimized, or mitigated are expected to be minimal. Since the project is not likely to result in a change in land use as result the transportation impact causing activities associated with the project, cumulative effects should be minimal or low. MORATORIUM No moratoriums were proposed in a letter from NCWRC dated July 27, 2004. CULTURAL RESOURCES Historical Structures & Archaeoloey: An architectural survey for structures listed in the National Register or eligible for nomination to the National Register was conducted in the project area. There are no properties in the project area that are eligible for or are listed in the National Register of Historic Places. Two archaeological sites located within the project limits were recommended as eligible for listing in the National Register of Historic Places (NRHP). Sites 31MA588 and 31MA589 consist of dense concentrations of cultural remains and intact subsurface deposits dating to the Qualla Phase (A.D. 1450-1838). The two sites have been recommended as eligible for listing in the NRHP under Criterion D for their potential to yield significant information about the prehistory of the region. The SHPO concurred with these recommendations according to a July 11, 2003 memorandum. Current design for the project maintains the existing topography along the west side of NC 28, where the sites are located, and proposes to widen to the east, away from the areas of interest. FEMA COMPLIANCE The project has been coordinated with appropriate state and local officials and the Federal Emergency Management Agency (FEMA) to assure compliance with FEMA, state, and local floodway regulations. WILD AND SCENIC RIVER SYSTEM The project will not impact any designated Wild and Scenic Rivers or any rivers included in the list of study rivers (Public Law 90-542, as amended). R_)QORR /ndividun7 Parmil Annlirntinn Pnoa S n(7 MITIGATION OPTIONS The NCDOT is committed to incorporating all reasonable and practicable design features to avoid and minimize jurisdictional impacts, and to provide full compensatory mitigation of all remaining, unavoidable jurisdictional impacts. Avoidance measures were taken during the planning and NEPA compliance stages; minimization measures were incorporated as part of the project design. Avoidance and Minimization: This project has been designed using asymmetrical widening. Using this method, the NCDOT has avoided impacting many wetlands and streams and reduced impacts to wetlands and streams to the greatest extent practicable. Other specific examples of avoidance and minimization measures include: • Onsite natural stream design methods for the relocation of Rocky Branch • The removal of a culvert carrying a UT to Rocky Branch and return the area to natural grade. • At site 4, the culvert carrying Rocky Branch across NC 28 will be replaced with a bottomless structure. • The use of 2:1 slopes in wetlands and stream crossings. ?• NCDOT will implement erosion and sedimentation control measures as specified by "Design Standards in Sensitive Watersheds". Compensation: The NCDOT has avoided and minimized impacts to jurisdictional resources to the greatest extent practicable as described above. Due to construction, 442 feet of Rocky Branch will be relocated away from the fill slope of NC 28. Using natural stream design techniques, 393 feet of the stream will be restored. Additionally as mentioned in the permit for R-2408A, NCDOT proposes to restore 190 linear feet of a UT to the Little Tennessee River on the A section, by removing an existing 18-inch pipe. The tributary will have a stable stream channel established and buffer planted. This restoration of 190 feet of stream will be used to offset impacts in the B section. As a result of these two activities, 80 linear feet of permanent stream impacts remain for R-2408B. The remaining, unavoidable impacts to 0.09 acre of jurisdictional wetlands and 80 feet of streams will be offset by the use of the Tulula Bog Mitigation Site. The Tulula Bog Mitigation Site is a 222 acre tract located in Graham County, NC within the 8- digit HU 06010204. The site it located off of Highway 129 between Topton and Robbinsville, NC in a rural area of the Blue Ridge Belt of the North Carolina mountains. The mitigation site contains 102 acres of wetland restoration, 121 acres of upland buffer protection, 8,639 linear feet of stream restoration, and 1,248 linear feet of stream preservation. The site was originally constructed in 2002 by NCDOT. The Phase I portion of the site was planted in April 2002, while Phase H was planted in March 2003. The 2003-year represents the first complete year of hydrologic and vegetation monitoring following site construction. The subsequent years of monitoring were performed under EEP management. According to the Tulula Monitoring Report dated March 2008 prepared for EEP, 2007 served as Monitoring Year 5 of 5, the final year of site monitoring. R-24nRR Individuni Permit Annlirn/inn Pnoe 6 n(7 Summarv of Stream Mitieation for R-2408B Mitigation Source Site Stream Mitigation Relocation of Roc Branch Site 3 393 Restoration of UT to Little Tennessee River A section 190 Tulula Bo 80 Total 6631f Total Permanent Strum Impact - 663 If PROJECT SCHEDULE R-2408B calls for a November 17, 2009 let date, and a review date of September 29, 2009. This application provides final design and impacts for the project. REGULATORY APPROVALS Section 404: Application is hereby made for a USACE Individual 404 Permit as required for the above-described activities. Section 401: We are hereby requesting a 401 Water Quality Certification from the N. C. Division of Water Quality. In compliance with Section 143 215.3D(e) of the NCAC, we will provide $570:00 to act as payment for processing the Section 401 permit application previously noted in this application (see Subject line). We are providing five (5) copies of this application to the NCDWQ for their review and approval. Thank you for your assistance with this project. If you have any questions or need additional information, please contact Mr. Jason Dilday atjldilday@ncdot.gov or (919) 413-6693. A copy of this application will also be posted at http://www.riedot.org/planning/pe/naturalunit/Permit.html. - SJ`incere Aw- egory J. Thorpe, /P/Ph.D., Environmental Management Director Gr Project Development and Environmental Analysis Branch W/attachment W/o attachment (cons) Mr. Brian Wrenn, NCDWQ (5 Copies) Mr. Jay Bennett, P.E., Roadway Design Ms. Marella Buncick, USFWS Mr. Majed Alghandour, P. E., Programming and TIP Ms. Marla Chambers, NCWRC Mr. Art McMillan, P.E., Highway Design Ms. Kathy Matthews, USEPA-Whitter, NC Mr. Scott McLendon, USACE, Wilmington Dr. Charles Nicholson, TVA Ms. Beth Harmon, EEP W/o attachment (see website for attachments) Mr. Todd Jones, NCDOT External Audit Branch Dr. David Chang, P.E., Hydraulics Mr. Steven Brown, P.E., PDEA Planning Engineer Mr. Victor Barbour, P.E., Project Services Unit Mr. Drew Joyner, PE, Human Environment Unit Mr. Greg Perfetti, P.E., Structure Design Mr. Clarence W. Coleman, P.E., FHWA Mr. Mark Staley, Roadside Environmental Ms. LeiLani Paugh, NEU Mr. J. B. Selzer, P.E. (Div. 14), Division Engineer Mr. Randy Griffin, NEU Mr. Mark Davis (Div. 14), DEO R-240RR Individunl Pnrmil Anniirn/inn Pnoc 7 nf7 APPLICATION FOR DEPARTMENT OF THE ARMY PERMIT I OMB APPROVAL NO. 0710-003 _ (33 CFR 325) Expires December 31, 2004 Public reporting burden for this collection of Information is estimated to average 10 hours per response, although the majority of applications should require 5 hours or less. This Includes the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Department of Defense, Washington Headquarters Service Directorate of Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202.4302; and to the Office of Management and Budget, Paperwork Reduction Project (0710-0003), Washington, DC 20503. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of Information If It does not display a currently valid OMB control number. Please DO NOT RETURN your form to either of those addresses. Completed applications must be submitted to the District Engineer having jurisdiction over the location of the proposed activity PRIVACY ACT STATEMENT Authority. Rivers and Harbors Act, Section 10, 33 USC 403: Clean Water Act, Section 404, 33 USC 1344; Marine Protection, Research and Sanctuaries Act, 33 USC 1413, Section 103. Principal Purpose: Information provided on this form will be used In evaluating the application for a Permit Routine Uses: This information may be shared with the Department of Justice and other federal, state, and local government agencies. Submission of requested Information is voluntary, however, If Information is not provided the permit application cannot be evaluated nor can a permit be Issued. One set of original drawings or good reproducible copies which show the location and character of the proposed activity must be attached to this application (see sample drawings and Instructions) and be submitted to the District Engineer having jurisdiction over the location of the proposed activity. An aoolication that is not completed in full will be returned. ITEMS 1 THRU 4 TO BE ILLED BY THE FURPS 1. APPLICATION NO. 2. FIELD OFFICE CODE 3. DATE RECEIVED 4. DATE APPLICATION COMPLETED ITEMS BELOW TO BE F LLED BYAPPLICAH 5. APPLICANTS NAME 6. AUTHORIZED AGENTS NAME AND TITLE (an agent is not muued) North Carolina Department of Transportation Project Development & Environmental Analysis 6. APPLICANT'S ADDRESS 9. AGENTS ADDRESS 1598 Mail Service Center Raleigh, NC 27699-1548 7. APPLICANT'S PHONE NOS. W/AREA CODE 10. AGENTS PHONE NOS. W/AREA CODE a. Residence a. Residence b. Business 919-733-3141 It. Business 11. STATEMENT OF AUTHORIZATION I hereby authorize, to act in my behalf as my agent in the processing of this application and to furnish, upon request, supplemental information in support of this permit application. APPLICANT'S SIGNATURE DATE NAME, LOCATION, AND DESCRIPTION OR PROJECT OR ACTIVITY 12. PROJECT NAME OR TITLE (sae immmuons) R-2408B 13. NAME OF WATERBODY, IF KNOWN (u apprcable) 14. PROJECT STREET ADDRESS (H applicable) Rocky Branch and associated LITs. UT to Littie Tennessee River 15. LOCATION OF PROJECT Macon NC COUNTY STATE 16. OTHER LOCATION DESCRIPTIONS, IF KNOWN (see instructions) section, Township, Range, Linker. andtor Acd rs's Parcel Number, forexample. 17. DIRECTIONS TO THE SITE Please see attached vicinity map and cover letter. ENG FORM 4345, Jul 97 EDITION OF FEB 94 IS OBSOLETE (Proponent CECW-0R) 16. Nature of Activity (Desvlpaon of project. Include all features) Widening the current NC 28 from a 20-foot two lane facility with 1 to 4-foot shoulders , to a 24-foot two lane facility with 8-foot shoulders on existing location. 19. Project Purpose (Desswee the reason a purywa come project. see Imbucuons) The purpose of this project is to correct existing roadway deficiencies by improving the vertical and horizontal alignment and widening the travel lanes and shoulders. USE BLOCKS 20-22 IF DREDGED AND/OR FILL MATERIAL IS TO BE DISCHARGED 20. Reason(s) for Discharge Impacts Will result from widening the roadway and shoulders, and lengthening/ replacing hydraulic structures. 21. Type(s) of Material Being Discharged and the Amount of Each Type in Cubic Yards See attached cover letter. 22. Surface Area in Acres of Wetlands or Other Waters Filled (see Inewcbona) See attached cover letter. 23. Is Any Portion of the Work Already Complete? Yes _ No _X_ IF YES, DESCRIBE THE COMPLETED WORK 24. Addresses of Adjoining Property Owners, Lessees, Eta, Whose Properly Adjoins the Waterbody (d mare men can be entered hme, please ahach a supplemental ns). Please see adjacent property landowners page attached to the permit drawing package. 25. List of Other Certifications or Approvals/Denials Received from other Federal, State, or Local Agencies for Work Described in This Application. AGENCY TYPE APPROVAL IDENTIFICATION NUMBER DATE APPLIED DATE APPROVED DATE DENIED WA Would include but is not restricted to zoning, building, and flood plain permits 26. Application is hereby made for a permit or permits to authorize the work described in this application. 1 certify that the information in this application is complete and accurate. I further certify that I possess the autlarity, to undertake the work described herein or am acting as the duly authorized agent of the applicant ya16-c19 SIGNA RE 0 APPLICANT DATE SIGNATURE OF AGENT DATE The application must be signed by the person who desires to undertake the proposed activity, (applicant) or it may be signed by a duly authorized agent if the statement in block 11 has been filled out and signed. 18 U.S.C. Section 1001 provides that Whoever, in any manner within, the jurisdiction of any department or agency of the United States knowingly and willfully falsifies, conceals, or covers up any trick, scheme, or disguises a material fact or makes any false, fictitious or fraudulent statements or representations or makes or uses any false writing or document knowing same to contain any false, fictitious or fraudulent statements or entry, shall be fined not more than $10,000 or imprisoned not more than five years or both. ENG FORM 4345, Jul 97 EDITION OF FEB 94 1S OBSOLETE (Proponent CECW-0R) United States Department of the Interior FISH AND WILDLIFE SERVICE Asheville Field Office 160 Zillicoa Street Asheville, North Carolina 28801 March 4, 2009 Dr. Gregory J. Thorpe, Manager Project Development and Environmental Analysis Branch North Carolina Department of Transportation 1548 Mail Service Center Raleigh, North Carolina 27699-1548 Dear Dr. Thorpe: RECEIVED MAR 9 2009 ON1510N OF NKiNWAYS P)EA-0FFlCE OF NAiURAJ ENVIRONM Subject: Endangered Species Concurrence for TIP Project No. R-2408B, Proposed Widening of NC 28 North of Franklin in Macon County, North Carolina, Federal Aid Project . No. STP-28(1), WBS No. 34427.1.1 We have reviewed your concurrence request and the protective measures proposed for project implementation for the subject project. We provide the following comments in accordance with the provisions of section 7 of the Endangered Species Act of 1973, as amended (16 U.S.C. 1531-1543) .(Act). The North Carolina Department of Transportation proposes to maintain NC 28 as a two-lane road and widen the travel lanes to 12 feet, with 8-foot paved shoulders. The existing culvert at Rocky Branch will be replaced with a bottomless arch culvert. In addition; a perched culvert, which conveys an unnamed tributary to Rocky Branch, on an abandoned road will be removed. The project terminates prior to crossing the Little Tennessee River. According to the information provided, eight federally protected species were considered for this project. You determined that implementation of the project would have no effect on four of those species and is not likely to adversely affect the federally threatened spotfin chub (Erimonaz monachus) or the federally endangered Appalachian elktoe (Alasmidonta raveneliana), little-wing pearlymussel (Pegias Tabula), or Indiana bat (Myotis sodalis). Appalachian elktoe littlewing pearlyinussel, and spotfin chub - The culvert replacement at Rocky Branch is about 1.5 miles from the confluence with the Little Tennessee River. Rocky Branch does not provide habitat for the elktoe or the littlewing pearlymussel and provides marginal habitat for the spotfin chub. Although the spotfin chub has been documented to use other tributaries to the Little Tennessee River, several surveys of Rocky Branch have not resulted in the discovery of any spotfin chubs using this tributary. The NCDOT also has committed to implementing design standards for sensitive watersheds for erosion control for this project. Given the lack of suitable habitat, negative survey data, and protective commitments for erosion control, we can concur with your conclusion of "not likely to adversely affect" for the aquatic species for the subject project. Indiana bat - A combination of mist-net surveys and habitat assessments conducted for the Indiana bat have not resulted in the discovery of any individuals in the proj ect area. In addition, tree clearing will be minimal and will occur only during the winter months (October 15 through April 15); therefore, we concur with your conclusion of "not likely to adversely affect" for the Indiana bat for the subject project. We believe the requirements under section 7(c) of the Act are fulfilled regarding listed species for the subject project. However, obligations under section 7 of the Act 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 review, or (3) a new species is listed or critical habitat is determined that may be affected by the identified action. If you have questions about these comments please contact Ms. Marella Buncick of our staff at 828/258-3939, Ext. 237. In any future correspondence concerning this project, please reference our Log Number 4-2-01-393. Sincfely, Brian P. Cole Field Supervisor cc: Ms. Marla J. Chambers, Western NCDOT Permit Coordinator, North Carolina Wildlife Resources Commission, 12275 Swift Road, Oakboro, NC 28129 Mr. David Baker, Asheville Regulatory Field Office, U.S. Army Corps of Engineers, 151 Patton Avenue, Room 208, Asheville, NC 28801-5006 Mr. Jason Dilday, Natural Environment. Unit, North Carolina Department of Transportation, 1598 Mail Service Center, Raleigh, NC 27699-1598 w Minutes for Permit Drawing Review Meeting R-2408B, Macon County NC 28 from SR 1323 (Riverview Street) to SR 1378 (Bennett Road) A Permit Drawing Review Meeting was held on Wednesday, September 24, 2008 in the Hydraulics conference room at the NCDOT Century Center Complex, Raleigh. Team Members Present: Andrew Nottingham - NCDOT Hydraulics Design David Baker - USACOE Marella Buncick - USFWS Marla Chambers - NCWRC Brian Wrenn - NCDWQ Kathy Matthews - EPA Donnie Brew - FHWA Mark Staley (for David Hams) - NCDOT Roadside Environmental Jason Moore - NCDOT Roadway Design John Duggins (for Quang Nguyen) - NCDOT Structure Design Linwood'Stone - PDEA Carla Dagnino - NCDOT NEU Team Members Absent: Jamie Wilson - NCDOT Division 14 Participants: Jeanie Tyson - NCDOT Roadway Design Stephen Morgan - NCDOT Hydraulics Design Randy Griffin - NCDOT NEU LeiLani Paugh - NCDOT NEU Byron Moore - NCDOT NEU Eugene Tarascio - NCDOT Project Development Amy Simes - DENR Jennifer Parish - NCDOT Roadside Environmental Mark Staley - Ncdot Roadside Environmental Jason Dilday - NCDOT NEU R2408B Permit Drawing Review Meeting Minutes The meeting began at 1:00 p.m. with introductions followed by NCDOT Hydraulics giving a brief description and history of the project. It was noted that this project was not following the merger process. The group was reminded of a prior on- site meeting to discuss the impacts associated with the culvert crossing at station 110+00 -L-. The project's Environmental Assessment identified the project as being located within the critical habitat area for the Appalachian elk toe mussel and spot fin chub. NCDOT will implement appropriate erosion and sedimentation controls to minimize impacts from construction and runoff. NCDOT described the project as a safety improvement project. The overall lane configuration remains the same, but the vertical and horizontal alignments will be improved. The typical section consist of a two-lane section with roadside ditches. Where needed to eliminate large cut sections, expressway gutter was used. There are no retaining walls on the project. NCDOT led the discussion by reviewing the Stormwater Management Plan for the project. The Roadway Description, Environmental Description and Impacts, and Best Management Practices were presented. NCDOT noted that the project is in the Little Tennessee watershed, with a portion of the project near the beginning flowing into Lake Emory. The remainder of the project flows into tributaries of the Little Tennessee River below the lake. DWQ expressed concern with the extensive amount of piping on the project. NCDOT explained that the new roadway typical section will allow storm water to flow overland in grassed ditches built with 4:1 and 6:1 side slopes before it will enter the pipe system through grated inlets. This design will allow for more effective overland flow than the current design because the new grassed shoulders are wider, and the existing ditches are stabilized extensively with pavement. NCDOT began a site by site discussion of the permit drawings. At Site 1A, the team members agreed a detail would be needed to show that placement of rip rap at the pipe inlet would be embedded. DWQ asked for a review of the pipe design along Hughes Lane. NCDOT described that the amount of water in the pipe system warranted the design, and the ditch along Hughes will be replaced once the pipe is installed. At Site 1, USACOE asked about the extent of the impact. NCDOT explained that the new roadway cross section required a longer.pipe than is now present. The rip rap will be on the stream banks only. At Site 2, NCDOT explained the benefits to erosion and sedimentation by piping into the pipe crossing rather than releasing storm water into a steep ditch that would require rip rap stabilization. The entire pipe system has grass swale treatment before entering the pipe system at grated inlets. At Site 3, NCDOT will add the stream name (and at all other stream sites as well). USACOE asked if the stream impacts could be reduced below 300' using retaining walks or other means. Several team members expressed concerns with the proposal and agreed to leave the design as is. The temporary easement encompassing the stream relocation will be changed to Right of Way. NCDOT may revise the stream details slightly to aid Page 2 0£3 R2408B Permit Drawing Review Meeting Minutes in stakeout and construction. Additional Rock Cross Vanes may be added if needed during this process. At Site 4, NCDOT noted that the existing 6'x 6' culvert upstream of the proposed culvert will be removed. USFWS expressed concerns that bottomless culverts may not always adequately allow for the formation of a natural stream channel inside the culvert depending on the width and length of the culvert. The team agreed more study and evaluation of existing bottomless culverts is needed to address this concern in the future. No comments for Site 5. Other business: The team agreed NCDOT NEU should proceed with a proposal to "daylight" an existing underground pipe on the R2408A section using natural stream design. The meeting was adjourned at 2:05 p.m. Page 3 of 3 STORMWATER MANAGEMENT PLAN R-2408B, WBS No.: 34427. 1.1 Date:09/09/08 Macon County Hydraulics Project Manager: Andrew Nottingham, PE ROADWAY DESCRIPTION The project involves roadway improvements to NC28 from north of SR 1323 (Riverview Street) to south of SR 1378 (Bennett Rd.) just north of Franklin. The project's purpose is to correct existing roadway deficiencies by improving the vertical and horizontal alignment and widening the travel lanes and shoulders. The existing roadway is a two- lane highway, having a 20' pavement width and V to 4' grassed shoulders. The proposed roadway will have a 24' pavement width and 8' shoulders, 4' of which will be paved. Both the existing roadway and proposed roadway convey roadway storm water runoff in roadside ditches. To improve traffic flow and safety, a.tum lane will be added at SR 1337 (Riverbend Rd.) and at Sr 1434 (Airport Rd.) ENVIRONMENTAL DESCRIPTION AND IMPACTS The project is located in the Little Tennessee River Basin in the Mountain Physiographic Province. The natural ground elevation range is from 1990 to 2160. There are 5 stream impact sites on this project which are all classified as Class C waters. The streams impacted by the project are a UT to the Little Tennessee River, Rocky Branch and a UT to Rocky Branch. Rocky Branch is a Tributary to the Little Tennessee River. Portions of the Little Tennessee River are designated by the US Fish and Wildlife Service as "critical habitat" and "proposed critical habitat". Two small wetland sites will be impacted. Stream impacts will consist of removing and upgrading existing pipe crossings along the project, relocating a portion of the creek due to a shifted alignment, and replacing a culvert with a bottomless culvert. Wetland impacts are due to roadway fill. BEST MANAGEMENT PRACTICES Best Management Practices (BMPs) and measures used on the project are non-structural and attempt to reduce storm water impacts to the receiving streams due to erosion and runoff. Grassed roadside ditches have been used almost exclusively along the project to convey storm water. The use of grass roadway ditches aids in pollutant removal through vegetative filtration and infiltration. Expressway gutter has been used to minimise excessive cuts which reduce the amount of disturbed area. Where possible, piped drainage systems were designed to outlet away from surface waters to allow time for infiltration in ditches or natural areas. Rip rapped ditches and riprap along stream banks were used where warranted to control erosion. The inverts of all new culverts on jurisdictional streams or wetlands will be buried 20% of the pipe diameter, up to 1 foot deep. Culverts were designed to protect stream stability and provide fish passage where possible. In locations where the proposed alignment will be shifted from the current a a R-2408B SNP 09/09/08 alignment, the existing pavement will be removed. The remaining area will then be replanted with vegetation. Natural stream design will be used in the stream relocation. Stream Relocations • Station 99+42 to station 104+68 -L- left side. 393 feet of natural stream design proposed. Culverts • -L- Station 109+00: 16' x 7' Three-sided Bottomless culvert. The existing culvert upstream of the proposed culvert will be removed to restore the existing stream in this location. 1 Environmental Assessment, May 2004 0 F' Q ? ?p p O v d ¢ N F x o .. -y 0 0 N ?I M b O O N N O p z F W U N O 1 ma ? o ? m f ? p w ca a °' U z w x m w ? Q N c'l N ep O fn o Q' I ? I N d m L O a u? m co N m ? N N L) L) N R Z Z Z m Z C C C Q ? C Y C t CO Y ? co t0 0 LL ` LL ` LL Z U ` LL v Z V LL' V ? ? C Y C J d ? ? N LL 0 ? 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PROJECT LOCATION AND BACKGROUND INFORMATION: State:NC County/parish borough: Macon City: Franklin Center coordinates of site (lat/long in degree decimal format): Lat. 3512'21 "° 0, Long. 83'23'52'6 IN. Universal Transverse Mercator. Name of nearest waterbody: Rocky Branch/Little Tennesse River Name of nearest Traditional Navigable Water (TNW) into which the aquatic resource flows: Little Tennessee River Name of watershed or Hydrologic Unit Code (HUC): 06010202 Check if map/diagram of review area and/or potential jurisdictional areas is/are available upon request e+ Check if other sites (e.g., offnte mitigation sites, disposal sites, etc...) are associated with this action and are accorded on a different JD form. D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY): ?¦ Office (Desk) Determination. Date: Field Determination. Date(s): SECTION 11: SUMMARY OF FINDINGS A. BHA SECTION 10 DETERMINATION OF JURISDICTION. There "navigable waters ofthe U.S." within Rivers and Harbors Act (RHA) jurisdiction (as defined by 33 CFR part 329) in the review area [Required] 8 Waters subject to the ebb and flow of the tide ¦ Waters are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce. Explain: B. CWA SECTION 404 DETERMINATION OF JURISDICTION. There ® "waters of the U.S." within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR par 328) in the review area. [Required] 1. Waters of the U.S. a. Indicate presence of waters of U.S. In review area (check all that apply): r ¦ TNWs, including territorial seas Wetlands adjacent to TNWs Relatively permanent waters= (RPWs) that flow directly or indirectly into.TNWs ¦ Non-RPWs that flow directly or indirectly into TNWs Wetlands directly abutting RPWs that flow directly or indirectly into TNWs Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs ¦ Wetlands adjacent to non-RPWs that flow directly or indirectly into TN Ws Impoundments of jurisdictional waters Isolated (interstate or intrastate) waters, including isolated wetlands b. Identify (estimate) size of waters of the U.S. In the review area: Non-wetland waters: 3000 linear feet: 2-8 width (R) and/or acres. Wetlands: 0.09 acres. c. Limits (boundaries) of jurisdiction based on:b , Elevation of established OHWM (if known): 2. Non-regulated waters/wetlands (check if applicable):3 Potentially jurisdictional waters and/or wetlands were assessed within the review area and determined to be not jurisdictional. Explain: ' Boxes checked below shall be supported by completing the appropriate scetiom in Section III below. ' For purposes of this form, an RPW is defined as a tributary that is rot a TN W and that typically flows year-round or has continuous flow at least -seasonally- (0.g_ typically 3 morths). 3 Supporting documentation is presented in Section III.F. SECTION 111: CWA ANALYSIS A. TNWs AND WETLANDS ADJACENT TO TNWs The agencies will assert jurisdiction over TN Ws and wetlands adjacent to TNWs. If the aquatic resource is a TNW, complete Section III.A.1 and Section III.D.I. only; if the aquatic resource is a wetland adjacent to a TNW, complete Sections III.A.1 and 2 and Section III.D.1.; otherwise, see Section IILB below. 1. TNW Identify TNW: Summarize rationale supporting determination: 2. Wetland adjacent to TNW Summarize rationale supporting conclusion that wetland is "adjacent": B. CHARACTERISTICS OF TRIBUTARY (THAT IS NOT A TNW) AND ITS ADJACENT WETLANDS (IF ANY): This section summarizes Information regarding characteristics of the tributary and its adjacent wetlands, If any, and It helps determine whether or not the standards for jurisdiction established under Rapanos have been met. The agencies will assert jurisdiction over non-navigable tributaries of TNWs where the tributaries are "relatively permanent waters" (RPWs): I.& tributaries that typically flow year-round or have continuous flow at least seasonally (e.g" typically 3 months). A wetland that directly abuts an RPW is also jurisdictional. If the aquatic resource is not a TNW, but has year-round (perennial) flow, skip to Section HI.D.2. If the aquatic resource is a wetland directly abutting a tributary with perennial Dow, skip to Section HLDA. A wetland that is adjacent to but that does not directly abut an RPW requires a significant nexus evaluation. Corps districts and EPA regions will Include In the record any available information that documents the existence of a significant nexus between a relatively permanent tributary that Is not perennial (and Its adjacent wetlands if any) and a traditional navigable water, even though a significant nexus finding is not required as a matter of law. If the waterbody' is not an RPW, or a wetland directly abutting an RPW, a JD will require additional data to determine if the waterbody has a significant nexus with a TNW. If the tributary has adjacent wetlands, the significant nexus evaluation must consider the tributary in combination with all of Its adjacent wetlands. This significant nexus evaluation that combines, for analytical purposes, the tributary and all of Its adjacent wetlands is used whether the review area Identified In the JD request is the tributary, or Its adjacent wetlands, or both. If the JD covers a tributary with adjacent wetlands, complete Section 111.8.1 for the tributary, Section III.82 for any onsite wetlands, and Section 111.63 for all wetlands adjacent to that tributary, both onsite and offalte. The determination whether a significant nexus exists Is determined in Section IILC below. I . Characteristics of non-TNWs that flow directly or indirectly into TNW (1) General Area Conditions: Watershed size: Drainage area: Average annual rainfall: inches Average annual snowfall: inches (11) Physical Characteristics: (a) Relationship with TNW: ® Tributary flows directly into TNW. ? Tributary flows through tributaries before entering TNW. Project waters are 11 river miles from TN W. Project waters ere river miles from RPW. Project waters are aerial (straight) miles from TNW. Project waters are aerial (straight) miles from RPW. Project waters cross or serve as state boundaries. Explain: Identify flow route to TNW't: Tributary stream order, if known: ' Note that the Instnctional Guidebook contains additional information regarding swalm, ditches, washes, and cosional features generally and in the and West. ' Flow route can be descnbod by identifying, o.g., tnbumry a. which flows though the review arts, to flow into tributary b, which then flows into TN W. V (b) Cameral Tributary Chameteristio (cb? all that uaniv)-. Tributary is: ? Natural ? Artificial (man-made). Explain: ? Manipulated (man-altered). Explain: Tributary properties with respect to top of bank (estimate): Average width: fort Average depth: feet Average side slops: PrimS tributary substrate coin sition (check all that apply): [_,j Silts Sands - ? Concrete ? Cobbles ? craved ? Muck ? Bedrock ? vegetation. Typd%eover ? Other. Explain: , Tributary condition/stability [e.g., highly eroding, sloughing banks). Explain: Presence o£run/riffld ] complexes. Explain: Tributary geometry: Tributary gradient (approximate average slope): % (c) E!MK Tributary provides fur. Estimate average number of flow events in review area/year: Omm Describe flow regime: Other information on duration and volume. Surface flow is: Characteristics: Subsurface flow: Explain findings: ? Dye (or other) test performed: Tributary has (check all that apply): ? Bad and batiks ? OHWM" (check all indicators that apply): ? clear, natural line impressed on the bank ? ? changes in the character of soil ? ? shelving ? ? vegetation matted down, bent, or absent ? ? leaf litter disturbed or washed away ? ? sediment deposition ? ? water staining ? ? other (list): ? Discontinuous OHWM.' Explain: if factors other than the OHWM were used to determ ® High Tide dine indicate{ by: ? oil or scum line along shore objects ? fine shell or debris deposits (foreshore) ? physical markings/chimacteristics ? tidal gauges ? other (list): the presence of litter and debris destruction of terrestrial vegetation the presence of wrack line sediment sorting scour multiple observed or predicted flow events abrupt change in plant community ne lateral extent of CWAjurisdiction (check all that apply) Mean High Water Mark indicated by: ? survey to available datum; ? physical markings; ? vegetation linesrchanges in vegetation types. (iii) Chemical Characteristics: Characterize tributary (e.g., water color is clear, discolored, oily film; water quality; general watershed characteristics, etc.), Explain: Identify specific pollutants, if known: sA natund or man-made discontinuity in the OH WM does not necessarily sever jurisdiction (e.g., where the stream temporarily Flows underground, or where the OHWM has been removed by development or agricultural practices). Where there is a break in the OHWM that is unrelated to the watetbody's flow regime (erg., flow over a rock outcrop or through a covert), the agencies will look for indicators of flow above and below the break. 'Ibid. (Iv) Biological Characteristics. Channel supports (check all that apply): ? Riparian corridor. Characteristics (type, average width): ? Wetland Binge. Characteristics: ? Habitat for. ? Federally Listed species. Explain findings: ? Fish/spawn areas. Explain findings: ? Other environmentally-sensitive species. Explain findings: ? Aquatidwildlife diversity. Explain findings: 2. Characteristics of wetlands adjacent to non-TNW that now directly or indirectly Into TN W (1) Physical Characteristics: (a) General Weiland Chamctcristicl Properties: Wetland size: acres Worland type. Explain: Worland quality. Explain: Project wetlands cross or serve as state boundaries. Explain: (b) General ' ?. sbiawitt No Tom. Flow is: c ? Explain: Surface flow is: Characteristics: Subsurface flow: Explain findings: ? Dye (or other) test performed: (c) Wetland Ar iaeency Determination with Non-TN W ? Directly abutting ? Not directly abutting ? Discrete wetland hydrologic connection. Explain: ? Ecological connection. Explain: ? Separated by betmfbarrier. Explain: (d) Proximiiv (Relationshin) to TNW Project wetlands are river miles from TNW. Project waters are aerial (straight) miles from TN W. Flow is from: Estimate approximate location of wetland as within the floodplain. (it) Chemical Characteristics: Characterize wetland system (e.g., water color is clear, brown, oil film on surface; water quality; general watershed characteristics; etc.). Explain: Identify specific pollutants, if known: if i) Biological Characteristics. Wetland supports (check all that apply): ? Riparian buffer. Characteristics (type, average width): ? Vegetation tylidpetcent cover. Explain: ? Habitat for. ? Federally Listed species. Explain findings: ? Fishlspawn areas. Explain findings: ? Other crvironme tally-sensitive species. Explain findings: ? Aquatielwildlife divesity. Explain findings: 3. Characteristics of all wetlands adjacent to the tributary (if sa All wetland(s) being considered in the cumulative analysis: FWU' Approximately ( ) acres in total are being considered in the cumulative analysis. i! For each wetland, specify the following: Directly abuts? (Y/N) Si7a (in acres) Directly abuts? (Y/N) Size (in acres) Summarize overall biological, chemical and physical functions being performed: C. SIGNIFICANT NEXUS DETERMINATION A significant nexus analysis will assess the flow characteristics and functions of the tributary itself and the functions performed by any wetlands adjacent to the tributary to determine if they significantly affect the chemical, physical, and biological Integrity of a TNW. For each of the following situations, a significant nexus exists if the tributary, in combination with all of its adjacent wetlands, has more than a speculative or insubstantial effect on the chemical, physical and/or biological Integrity of a TNW. Considerations when evaluating significant nexus Include, but are not limited to the volume, duration, and frequency of the flow of water in the tributary and Its proximity to a TNW, and the functions performed by the tributary and all its adjacent wetlands. It Is not appropriate to determine significant nexus based solely on any specific threshold of distance (eg. between a tributary and its adjacent wetland or between a tributary and the TNW). Similarly, the fact an adjacent wetland lies within or outside of a floodplain is not solely determinative of significant nexus. Draw connections between the features documented and the effects on the TNW, as identified in the Rapanos Guidance and discussed in the Instructional Guidebook. Factors to consider Include, for example: • Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to carry pollutants or flood waters to TNWS, or to reduce the amount of pollutants or flood waters reaching a TNW? • Does the tributary, in combination with its adjacent wedands (if any), provide habitat and iifmycle support functions for fish and other species, such as foaling, nesting, spawning, or rearing young for species that are present in the TNW? • Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that support downstream foodwebs? • Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, or biological integrity of the TNW? Nate: the above list of considerations Is not inclusive and other functions observed or known to occur should be documented below: 1. Significant nexus findings for non-RPW that has no adjacent wetlands and flows directly or indirectly into TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary itself, then go to Section III.D: 2. Significant nexus findings for non-RPW and Its adjacent wetlands, when the non-RPW flows directly or indirectly Into TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to Section III.D: 3. Significant nexus findings for wetlands adjacent to an RPW but that do not directly abut the RPW. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to Section HIM: D. DETERMINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERS/WETLANDS ARE (CHECK ALL THAT APPLY): 1. TNWs and Adjacent Wetlands. Check all that apply and provide size estimates in review area: TNWs: linear feet width (B), Or, acres. Wetlands adjacent toTNWs: aelm. 2. RPWs that flow directly or Indirectly into TNW9. ® Tributaries ofTNWs where tributaries typically flow year-round are jurisdictional. Provide data and rationale indicating that tributary is perennial: UT to Little Tennessee River, Rocky Branch and Jacob Branch have NCDWQ strtatn rating scores greater than 30. ® Tributaries of TNW where tributaries have continuous flow "seasonally (e.g., typically three months each year) are jurisdictional. Data supporting this conclusion is provided at Section 111.6. Provide rationale indicating that tributary flows seasonally-. t Provide estimates forjurisdictional waters in the review area (check all that apply): ® Tributary waters: 30001inear feet 2 - 8 width (lt). - ¦ Other non-wetland waters: acres. Identify type(s) of waters: 3. Non-RPWss that flow directly or Indirectly into TN Ws. Q Waterbody that is not a TNW or an RPW, but flows directly or indirectly into a TNW, and it has a significant nexus with a TNW is jurisdictional. Data supporting this conclusion is provided at Section HI.C. Provide estimates for jurisdictional waters within the review area (check all that apply): ?]• Tributary waters: linear feet width (fl). • Other non-wetland waters: acres. Identify type(s) of waters: 4. Wetlands directly abutting an RPW that flow directly or indirectly Into TNWs. Q Wetlands directly abut RPW and thus are jurisdictional as adjacent wetlands. ® Wetlands directly abutting an RPW where tributaries typically flow year-round. Provide data and rationale indicating that tributary is perennial in Section III.D.2, above. Provide rationale indicating that wetland is directly abutting an RPW: The wetlands have a jurisdictional connection based on the three criteria defining a wetland from the 1987 Manuel. Q Wetlands directly abutting an RPW where tributaries typically flow "seasonally." Provide data indicating that tributary is seasonal in Section IILH and rationale in Section III.D.2, above. Provide rationale indicating that wetland is directly abutting an RPW: Provide acreage estimates for jurisdictional wetlands in the review area: 0.09 acres. 4. Wetlands adjacent to but not directly abutting an RPW that flow directly or indirectly Into TNWs. Q Wetlands that do not directly abut an RPW, but when considered in combination with the tributary to which they are adjacent and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisidictional. Data supporting this conclusion is provided at Section UI.C. Provide acreage estimates for jurisdictional wetlands in the review area: acres. 6. Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs. ® Wetlands adjacent to such waters, and have when considered in combination with the tributary to which they are adjacent and with similarly situated adjacent wetlands, have a significant nexus with a TN W are jurisdictional. Data supporting this conclusion is provided at Section IH.C. Provide estimates for jurisdictional wetlands in the review area: acres. 7. Impoundments of jurisdictional waters ? Asa general rule, the impoundment of a jurisdictional tributary remains jurisdictional. I Demonstrate that impoundment was created from "waters of the U.S.," or Demonstrate that water meets the criteria for one of the categories presented above (1-6), or Demonstrate that water is isolated with a nexus to commerce (see E below). E. ISOLATED INTERSTATE OR INTRA-STATE) WATERS, INCLUDING ISOLATED WETLANDS, THE USE, DEGRADATION OR DESTRUCTION OF WHICH COULD AFFECT INTERSTATE COMMERCE, INCLUDING ANY SUCH WATERS (CHECK ALL THAT APPLY):'* which are or could be used by interstate or foreign travelers for recreational or other purposes. from which fish or shellfish are or could be taken and sold in interstate or foreign commerce. ¦ which are or could be used for industrial purposes by industries in interstate commerce. Interstate isolated waters. Explain: Other factors. Explain: 'See Footnote k 3. ° To complete the analysis refer to fie key in Section 111. D.6 of the Instructional Guidebook 'r Prior to asserting or dec0ning CWA jurisdiction based solely on this category, Corps Districts will elevate the action to Corps and EPA HQ for rrAm consistent with the process described in the Corps/EPA Memorandum Regarding CWA Act lurisdiedon Following Rapamos. } Identify water body and summarize rationale supporting determination: Provide estimates for jurisdictional waters in the review area (check all that apply): Tributary waters: linear feet width (ft). Other non-wetland waters: acres. Identify type(s) of waters: Wetlands: acres. NON-JURISDICTIONAL WATERS, INCLUDING WETLANDS (CHECK ALL THAT APPLY): 0 If potential wetlands were assessed within the review area, these areas did not meet the criteria in the 1987 Corps of Engineers Weiland Delineation Manual and/or appropriate Regional Supplements. Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce. ? Prior to the Jan 2001 Supreme Court decision in "5WANCC," the review area would have been regulated based solely on the "Migratory Bird Rule" (MBR). Waters do not meet the "Significam Nexus" standard, where such a finding is required for jurisdiction. Explain: Other. (explain, if not covered above): Provide acreage estimates for non jurisdictional waters in the review area, where the MS potential basis of jurisdiction is the MBR factors (i.e., presence of migratory birds, presence of endangered species, use of water for irrigated agriculture), using best professional 14a dgmenapply): Non-wetland waters (i.e., rivers, streams): linear feet width (ft). Lakeslponds: acres. Other non-wetland waters: acres. List type of aquatic resource: Wetlands: acres. Provide acreage estimates for non-jurisdictional waters in the review area that do not tried the "Significant Nexus" standard, where such a finding is required for jurisdiction (check all that apply): Non-wetland waters (i.c., rivers, streams): linear fee, width (ft). Lakes/ponds: acres. r Other non-wetland waters: acres. List type of aquatic resource. I Wetlands: acres. SECTION IV: DATA SOURCES. A. SUPPORTING DATA. Data reviewed for JD (check all that apply - checked items shall be included in case file and where checked and raiuested, appropriately reference sources below): M Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant-, Data shads prepared/submitted by or on behalf of the applicant/consultant. ? Office concurs with data sheeWdelineation report. ? Office does not concur with data shoeWdelineation report. Data sheets prepared by the Corps: t* Corps navigable waters' study: U.S. Geological Survey Hydrologic Atlas: ? USGS NHD data. ? USGS 8 and 12 digit HUC maps. U.S. Geological Survey map(s). Cite scale & quad name USDA Natural Resources Conservation Service Soil Survey. Citation: National wetlands inventory map(s). Cite name: w StatelLocal wetland inventory map(s): FEMA/FIRM maps: ¦ 100-year Floodplain Elevation is: (National GeWwtic Vertical Datum of 1929) Photographs: ? Aerial (Name & Date): or ? Other (Name & Date): +t Previous determination(s). File no. and date of response letter. Applicable/supporting case law: , Applicable/supporting scientific literature: Other information (please specify): B. ADDITIONAL COMMENTS TO SUPPORT JD: I i DATA FORM ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) WET Project/Site: 2 2408 A) c 2B@ A.Ra4o Date: J1-15 ems Applicant/Owner: Ncoot County: lrwoN Investigator: ivarn-i m STaN?sN. T State: NG Do Normal Circumstances Exist on the site? (?? N Community ID : t^" H4 d Is the site significantly disturbed (Atypical Situation)? es Transect ID: Is the area a potential Problem Area? Yes Plot ID: (If needed, explain on reverse.) VEGETATION inant Plant Species Do Stratum Indicator Dominant Plant Species Stratum Indicator m 1. Are, L r?r l? _ 9. e 1 i f 9 la,.. 1 1f t `.; 3, •? 11. a. - 1 n U., sp. ? 12. 6 ZS0-;-. _S;1W N!4 . 14. 7.641' f'IOtf _1711..u 15 _ 6. 16. Percent of Dominant Spades that are OBL. FACW or FAC (excluding FAG). Remarks: HYDROLOGY _ Recorded Data (Describe in Remarks): Wetland hydrology Indicators: _ Stream, Lake, or Tide Gauge Primary Indicators: _Aerial Photographs X Inundated Other No Recorded Data Available X Saturated in Upper 12 Inches x Water Marks Drift Lines Sediment Deposits Field Observations: Drainage Patterns in Wetlands /i 1'na L" " 4 Secondary Indicators (2 or more required): ' Depth of Surface Water. 1 (in.) Oxidized Root Channels in Upper 12 y X Water-Stalned Leaves Depth to Free,Water in.Pit: ._.. (in.) _ Local Soil Survey Data.. ?{ ' _ FAC-Neutral Test I R k E l i Depth to Saturated Soil: Y (in.) n emar Other ( xp a n s) Remarks: i t ,A ?1•1)111&a Map Unit Name CG9 5&,"y (Series and Phase}: ? ok- ?i 2 _ n S46x Drainage Class: W!9 Taxonomy (Subgroup): ?c 1 f l 14 Field Observations a 94fdtt 16 Confirm Mapped Type? No Profile Description: Depth Matrix Color _ Mottle Colors Mottle Texture, Concretions, Inch Horizon (Munsell Moist) (Munseli Moist) Abundance/Contrast Structure. etc. A 0 y - Non?E - 5A G1, Lw. 7 I; Hydric Soil Indicators: _ Histosol Concretions _ Histic Epipedon _ High Organic Content in Surfa ce Layer Sandy Soils _ SutFldic Odor _ Organic Streaking in Sandy Soils Aquic Moisture Regime _ Listed on Local Hydric Soils List Reducing Conditions Listed on National Hydric Soils List Gieyed or Low-Chrome Colors -Other (Explain in Remarks) Remarks: WETLAND DETERMINATION Hydrophytic Vegetation Present? No (Circle) Weiland Hydrology Present? No Hydric Soils Present? es No (Circle) Is this Sampling Point Within a Wetland? <Y2'5? No Remarks: J DATA FORM ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) op B Projectlsite: yc VC 21 e e Date: 11-1S2005 Applicant/Owner Nc Do? Investigator: 7LAc.+r r,7, SrA-r*e-. T County: M r State: Do Normal Circumstances Exist on the site. is the site significantly disturbed (Atypical Situation)? t CommunityID : U6 11d Transact ID: Is the area a potential Problem Area? Yes cti? Plot ID: (If needed, explain on reverse.) VEGETATION Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator 1. Y liV( ?? 9. 2. b?c?bc,r? 10. 3. K.4z- 11. 4. 12. 5. 13. 6. 14. 7. 15. a. 16. Percent of Dominant Species that are OBL, FACW or FAC (excluding FAG). Remarks: HYDROLOGY _ Recorded Data (Describe in Remarks): Wetland hydrology Indicators: _ Stream, Lake, or Tide Gauge Primary Indicators: _ Aerial Photographs Inundated Other X No Recorded Data Available _ _ Saturated in Upper 12 Inches _ Water Marks Drift Lines _ Sediment Deposits Field Observations: _ Drainage Patterns in Wetlands J(l - Seoondary Indicators (2 or more required): " Depth of Surface Water. - onc (in.) Oxidized Root Channels In Upper 12 Water-Stained Leaves _.Depth.to-Free Water.in.P_ft:- -- jt!anr- (in.)._. _ _/Von ' _ FAC-Neutral Test Depth to Saturated Soil: c (in.) Other (Explain in Remarks) Remarks: L_ 11 SOILS Map Unit Name C (Series and Phase): Orpt &UO9"?- 1 Dart 2- 9'`b Pf? Drainage Class: W-D ;e- y• T S b 4f 1 ad0-k Field ? f C T ." Q axonomy ( u group): on irm Mapped ype? Tres 1 No ?..?? Profile Description: Depth Matrix Color Mottle Colors Mottle Texture. Concretions, (Inrhes; Horizon (Munsell Moist) (Munseil Moist) Abundance/Contrest Structure, etc. -A O R ?f3 {DYR 'ye Hydric Soil Indicator;: _ Histosol Concretions _ Histic Epipedon _ High Organic Content in Surfs ce Layer Sandy Soils _ Sulfidic Odor _ Organic Streaking In Sandy Soils Aquic Moisture Regime _ Listed on Local Hyddc Soils List Reducing Conditions Listed on National Hydric Soils List _ Gleyed or Low-Chroma Colors _ Other (Explain in Remarks) Remarks: WETLAND DETERMINATION Hydrophytic Vegetation Present? Yes ('?lo (Circle) (Circle) Wetland Hydrology Present? o Hydric Soils Present? Yes ID Is this Sampling Point Within a Weiland? Yes Remarks: Z b `1 C ?B Project Name: 12.`ZUog x Nearest road:, C2 u rf Rcj• County: ato Wetland area: 6,04 acres Wetland width: _ feet Name of evaluator: J _> I. Idit, Date: I Lo v 6 Wetland location on pond or lake _ on perennial stream on intermittent stream within interstream divide other: Soil series Savv.eort /aw« Z-f7a predominantly organic (humus, muck, or peat) ___? ?redominantly mineral (non-sandy) predominantly sandy Hydrulic factors steep topography _ ditched or channelized _ total riparian wetland width >_ 100 ft Adjacent land use (within % mile upstream, upslope, or radius) forested/natural vegetation % agriculture, urban/suburban 7- o o/ impervious surface Lb % Dominant vegetation 2) i _ 3) qen-sZ Flooding and wetness _ semipermanently to permanently flooded r inundated seasonally flooded or inundated _ intermittently flooded or temporary .surface water no evidence of flooding or surface water Wetland type (select one) Bottomland hardwood forest Headwater forest Swamp forest Wet flat Pocosin Bog forest Pine savanna Freshwater marsh Bog/fen Ephemeral wetland Carolina Bay Other "The rating system cannot be applied to salt or brackish marshes or stream channels. weight R Water storage x 4.00 = A Bank/Shoreline stabilization x 4.00 = T Pollutant removal x 5.00 = _ I Low flow augmentation x 2.00 = N Wildlife habitat _L x 4.00 = G Aquatic life x 1.00 = 'Add 1 point if in sensitive watershed and >I 0% nonpoint disturbance within '/a mile radius. J N, , ?L ROUTINE WETLAND DETERMINATION (7987 COE Wetlands Delineation Manual) wet A Project/Site: IL-lAoc. ate: 0 » Applicant/Ovrner: e'A' A AJ ;ounty: " Invests ator. U L. fate: d L Do Normal CircumstanciW exist on the 4? Yes 0 mmunity to: Is the site significantly disturbed (Atypical Situation)? Oyes ransect ID: Is the area a potential Problem Area? ?Yes No lot ID: If needed, a lain on reverse. Dominant Plant Species Stratton indicator 1? ? 1'. ,?snf' sey?•%?n S*? ? Wt fktz 3 ?r?n i?GIr . s ,?Knob -G4-- 4. ? 5. B. 7. 8. ?- Percent of Dominant Species that are OBL, FACW or FAC Remarks: uvnani nr:v s. If. 13. Stratton Indicator Recorded Data (Describe in Remarks): Weiland Hydrology Indicators: ? Stream, Lake, or Tide Gauge Primary Indicators: ? Aerial Photographs ? ,ldundated ,[] Omer Saturated in Upper 12 Inches No Recorded Data Available ? Water Marks ? Drift Lines - nt Deposits ? Field Observations: Dra nag Drainage Patterns in Wetlands i Secondary Indicators (2 or more required): er 12 Inches ? iodized Root Channels in U n.) Depth of Surface Water: ( pp V &7 (in ) i Pit h F W t aterStained Leaves ? Local Soil Surve Data _ . er n : to ree a Dept y ? FAC-Neutral Test Depth to Saturated Soil: (in.) ? Other (E)plain in Remarks) Remarks: SOILS Map Unit Name ' / "-??--' ` (Series and Phase): _ plv. Or++? Z P 7p §47p s Drainage Class: K'!/ If'' Field Observations { Taxonomy (Subgroup): flu 4' ?n (t! ,. (rll fs Confine Mapped Type? &-it 0 No Profile Descriptions: Depth Matrix Color Mottle Colors Moore Abundance/ Texture, Concretions, (inches) Horizon Munsell Moist (Munsell Moist),_,_ Size/Contrast Structure, etc, o-tz r _ 3 to ¢ U 1,14 +1 Hydric Soil Indicators: ? Histosol ?. Concretions ? HIslic Epipedon ? High Organic Content in Surface Layer in Sandy Solis ? Sulfidic Odor ? Organic Streaking in Sandy Soils ? Xuic Moisture Regime ? Listed on Loral Hydric Soils List U uci g Conditions ? Listed on National Hydric Solis List L?f Gleyed or Low-Chroma Colors ? Other (Explain in Remarks) Remarks: V111a1Rc10 192 1a14a111IZI-, 1KSIJi Hydrophytic Vegetation Present? 016Y y ONO (Check) (Check) Wetland Hydrology Present? E,_J,,Y/e5 ONO Hydric Soils Present? Ieffes ONO IS this Sampling Point Within a Wetland? Yes ?No Remarks Approved by HOUSACE 3/92 Forms version 1/02 ROUTINE WETLAND DETERMINATION 1 \ 1 (11987 COE Wetlands Delineation Manual) ?ProjectlSite: S,oCMI? ,+tj. 'un , ate: ff tP U,b Applicant/Owner.., T nty: 54? Invest for: .t , State: G.r Do Normal Circumstances exist on site? es ?No 6iZ mmunlty ID: Is the site significantly disturbed (Atypical Situation)? Yes ransect ID: Is the area a potential Problem Area? ?Yes 01%1o lot ID: tt needed, a lain on reverse. VEGETATION Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator ,. . )? . J SAG It r. (4 C. 2. 10. ? Atl ? ? ? ,, i/C rY[/ G N+ -J . 4. 12. 5. 13. 6. 14. 7. 15. 8. 16. Percent of Dominant Species that are OBL, FACW or FAC (excluding FAC• . Remarks: HYDROLOGY D Recorded Data (Describe in Remarks): Welland Hydrology Indicators: ? Stream. Lake, or Tide Gauge Primary Indicators: ? Aerial Photographs ? Inundated Other ? Saturated in Upper 12 Inches No Recorded Data Available ? Water Marks ? Drift Lines " ? Sediment Deposits Field Observations: ? Drainage Patterns In Wetlands Secondary Indicators (2 or more required): Depth of Surface Water: NO-x-" (in.) ? Oxidized Root Channels in Upper 12 Inches Water-Stained Leaves Depth to Free Water In Pit: (in.) Al--P- ? Local Soli Survey Data ? FAC•Neutral Test A ' _. Depth to Saturated Solt: l? (in.) ? Other (Explain in Remarks) Remarks: SOILS IMap Unit Name ? (Series and Phase): ?.Jc /0a' z- J O tY Drainage Gass: Field Observations )?/1I Taxonomy (Subgroup): n.+u.Or y. . iS Confirm Mapped Type? es ? No Profile Descriptions: Depth Matrix Color Mottle Colors Mottle Abundance/ Texture, Concretions. (inches) Horizon Munsell Moist ( Mansell Moist) SizetContrast SWCUre, etc, U+ 12 t ?- ,., Hydric Soil Indicators: ? Histosol ? Concretions ? Histic Epipedon ? High Organic Content in Surface Layer in Sandy Soils ? SuNldic Odor ? Organic Streaking in Sandy Soils ? Aquic Moisture Regime ? Listed on Local Hydric Soils List ? Reducing Conditions ? Listed on National Hydric Soils List ? Gleyed or LovrChroma Colors ? Other (Explain In Remarks) Remarks: WETLAND DETERMINATION Hydrophytic Vegetation Present? Weiland Hydrology Present? Hydric Soils Present? Remarks (Check) ?Yes to ?Yes ?Yes (Check) this Sampling Point Within a Welland? ?Yes El'Ni'O' Approved by HOUSACE 3192 Forms version 1102 County: lokbri Project Name: !`-z- R Name of evaluator: Nearest road: 1)M Ai Rd, Wetland area: 2,VS acres Wetland width: feet so hic- t , Date: Wetland location on pond or lake on perennial stream on intermittent stream within interstream divide other: Soil series yEau- yclz 1.46wi 2 -b'Blb predominantly organic (humus, muck, or peat) L___ predominantly mineral (non-sandy) predominantly sandy Hydraul' factors =-Steep topography _ ditched or channelized _ total riparian wetland width > 100 ft Adjacent land use (within % mile upstream, upslope, or radius) ?orested/natural vegetation % _?agriculture,urban/suburban 50 % ?? impervious surface 50% Dominant vegetation 1) AL 2) X z-t1 4J^ 3) ArurYJ_in?i_??n" ?t Flooding and wetness - semipermanently to permanently flooded or inundated _ asonally flooded or inundated _ ittently flooded or temporary .surface water _ no evidence of flooding or surface water Wetland type (select one) Bottomland hardwood forest Pine savanna L- -- Headwater forest Freshwater marsh Swamp forest Bog/fen Wet flat Ephemeral wetland Pocosin Carolina Bay Bog forest Other *The rating system cannot be applied to salt or brackish marshes or stream channels. weight R Water Storage L x 4.00 = A Bank/Shoreline stabilization I x 4.00 = T Pollutant removal 3 x 5.00 = 1 Low flow augmentation x 2.00 = N Wildlife habitat x 4.00 = G Aquatic life x 1.00 = Add 1 point if in sensitive watershed and >)0% nonpoint disturbance within % mile radius. Stream Relocation Site 3 Summary An unnamed tributary to Rocky Branch will be impacted by proposed roadway fill near stations 100 to 104 on the left side of the alignment. The stream is perennial and has a drainage area of 360 acres. The existing stream varies in classification from a G5 to a C5 using the Rosgen classification system. The sinuosity is very slight. Where sufficient vegetation is present, the stream is stable. The floodplain is generally available for flooding relief, except in thoses sections that are entrenched. The streambed is predominately sand. The proposed stream will be classified as a Rosgen C5 stream. Rock cross-vanes will be used to establish grade control at both ends of the proposed realignment. Referencing a stable portion of the stream just below the reach, a similar dimension, patter, and profile will be established. The stream will be relocated and restored using a priority-2 stream restoration approach. To the extent practicable, a constructed floodplain will be created along the stream relocation to provide bankfull flood stage relief. This will decrease shear stresses along the stream. Additionally, rock cross-vanes will establish grade control and prevent head-cutting. Pools will be constructed in the stream relocation and should continue to provide aquatic habitat. To ensure long-term stability of the stream, the riparian buffer will be held in Right of Way to allow for vegetation establishment and buffer protection. Sediment Transport Analysis Shear stress, c = y R s y = density of water (62.4 lb/ft2) R = hydraulic radius = Area/Wetted Perimeter s = slope Stream power computation P=vt v = channel velocity (ft/s) 2 = shear stress (lb/ftz) R-2408B Stream Relocation 09/09/08 Sediment transport analysis, continued Existing Stream R= IO.OftZ/9.5ft = 1.05ft s = 0.011 ft/ft T = (62.4 lb/ft3)(1.05ft)(0.01 lft/ft) = 0.72lb/ft2 P = (5.5 ft/s)(0.72lb/ft2) = 3.96 ft.lbs/s.ft2 Reference Stream R = 12.3ft2/13.7ft = 0.90ft s = 0.012ft/ft T = (62.4 lb/ft)(0.90ft)(0.012ft/ft) = 0.671b/ft2 P = (4.8 ft/s)(0.67lb/ft2) = 3.22 ft.lbs/s.ft2 Proposed Stream R = 12.W/13.5ft = 0.95ft s = 0.012ft/ft T = (62.4 lb/ft3)(0.95ft)(0.012ft/ft) = 0.71 lb/ftZ P = (4.6 ft/s)(0.71lb/ftZ) = 3.26 ft.lbs/s.ft2 Variables Existing Channel Proposed Reach Reference Reach Reference Reach Lost Cove Cr. Downstream 1. Stream type G5/C5 C5 C3 C5 2. Drainage area D.A. ac. 360 ac. 360 ac. 24.8 s q. mi. 360 ac. 3. Bankfull width (Wbko ft. 11.0 13.0 62.3 13.3 4. Bankfull mean depth dbk ft. 0.91 0.98 3.36 0.92 5. Width/de th ratio (Wbkf/dbkq 12.1 13.2 18.5 14.5 6. Bankfull cross-sectional area Abk ft.Z 10.0 12.8 208.0 12.2 7. Bankfull mean velocity bk ft/sec 5.5 4.6 4.8 8. Bankfull discharge Obl R.3/sec 55 59 59 9. Bankfull max depth dmbk ft. 2.0 1.5 5.4 1.8 10. Width of flood prone area yVfpa) ft. 17 to 70 50 >200 71 11. Entrenchment ratio (WfpaNVbkfl 2.0 to 6.4 3.8 >3 5.3 12. Meander length Lm ft. 30 to 80 90 to 124 540 38 to 51 13. Ratio of meander length to bankfull width Lm/Wbk 2.7 to 7.3 6.9 to 9.5 8.7 2.9 to 3.8 14. Radius of curvature Rc ft. 12 to 25 25 to 40 62.5 20 to 30 15. Ratio of radius of curvature to bankfull width RclWbk 1.1 to 2.3 1.9 to 3.1 1 1.5 to 2.3 16. Belt width (Wbit) ft. 20 25 500 18 17. Meander width ratio (WbltIWbkf) 1.80 1.90 8 1.40 18. Sinuosity (stream length/valley length) K 1.05 1.03 1.2 1.09 19. Valle Sloe S 1.05% 1.30% 0.008B 1.27% 20. Average slope CS 1.10% 1.20% 0.0084 1.39% 21. Pool sloe 0.001 0.001 0.001 22. Ratio of pool slope to average sloe 0.091 0.083 0.072 23. Maximum pool depth d max ft. 1.9 2.5 7.7 1.8 24. Ratio of pool depth to average bankfull depth d /dbk 2.09 2.54 2.3 1.96 25. Pool width ft. 16.0 15.0 59.5 14.0 26. Ratio of pool width to bankfull width 1.45 1.15 0.96 1.05 27. Pool to pool spacing ft. 30 to 80 35 to 70 190 30 to 80 28. Ratio of pool to pool spacing to bankfull width 1.9 to 5.2 2.7 to 5.4 3.05 2.3 to 6.0 29. Ratio of lowest bank height to bankfull height (or max bankfull depth) (BHlow/dmbk 0.7 1.0 1.0 0.6 NATURAL CHANNEL DESIGN DATA MORPHOLOGICAL MEASUREMENT TABLE N.C. DEPT. OF TRANSPORTATION DIVISION OF HIGHWAYS Macon County PROJECT: 34427.1.1 (R-240813) SITE 3 Station 99+42 to 104+68 UT to LittleTennessee Stream Mitigation Plan TIP R-2408 WBS No. 34427.1.1 January 2009 The North Carolina Department of Transportation will perform on-site mitigation for stream impacts associated with TIP R-2408. The mitigation site contains approximately 190 linear feet of stream restoration and occurs within the right of way located adjacent to NC 28 near station 28+OOR. NCDOT proposes to restore 190 linear feet of stream by removing an existing 18" reinforced concrete pipe (RCP), establishing a stable stream channel, and replanting a buffer along the unamed tributary that leads to Little Tennessee River. This site is proposed to offset 190 feet of stream impacts associated with the road project. Existing Conditions This project is located in the central region of Macon County on NC 28 about two miles north of Franklin NC. NCDOT plans to widen NC 28, making it a four lane road. The existing unnamed tributary runs East Northeast to West Southwest through an 18 inch (RCP) pipe perpendicular to NC 28. Steep upstream topography varies greatly from the topography downstream of the culvert. The riparian area adjacent to the stream is currently grass with a very sparse riparian buffer. The stream flows from pipe to wetland therefore no existing dimensions are shown in the geomorphic Table. Proposed Conditions The proposed stream channel design involves removing approximately 190 linear feet of existing 18" RCP and restoring the appropriate dimension, pattern and profile to the stream. The design proposes an A t ype channel with a 13% slope transitioning into a B type channel with a 6.5 % slope.The cross-sectional area for this stream is 2.5 square feet. This information is shown in detail on the morphological table included in Appendix A. The proposed design includes reshaping the stream channel, applying the appropriate cross sectional areas and installing grade control structures. The design parameters were verified using the NC Regional Curves found in Appendix A. A minimum 50' buffer along each side of the channel will be planted at a a density rate of 680 trees per acre on 8 foot centers with the following species: silky willow, (salix sericea) elderberry,( sambucus canadensis) for Type I. Northern red oak, (quercus rubra), american sycamore (platanus occidentalis), white oak (quercus alba), yellow poplar (liriodendron tulipifera) for Type 11. The mitigation site was purchased fee simple and will be held in perpetuity by NCDOT. Monitoring NCDOT proposes to monitor the restoration site by visual observation for channel and bank stability and by, photo documentation for the survival and the density of the vegetation. NCDOT will monitor the site for a minimum of three years or until the site is a success. The USACE stream quality assessment forms used to evaluate success criteria are shown in Appendix A. MORPHOLOGICAL MEASUREMENTS TABLE STREAM_ SAME AhWk-LOCA7TON ACA xAM?-Sm_rn±em•nn tStm.m±mLnm Of O , fe0m x on er BD 2 -as. o.6? F.111 TAP aiD Haw w mom ..... Me" 5 1060* -W\ mean 040 E ...._ Ra 1 Ro v atb r o me0rtr Or0ss-se01 area ----- ---v W mean --"- "---' Ni0 sGnrpa s aeom ----- / max depth 1 AMMVIdth of afore area ME& n/ rot0 RO .............. .............. 0 M FcW-&7- width ..... Afmalk ----- m --- ............ . mWIh _-__- u6 Curvature Me" r ..--- .............. .__-_ 15. o radius nrrvalure to IW/ width ----- ----- me - ----•-.--•--.. ----- width .............. rf.mawdmr Width ratio mmm RLSIMOSIly fe0m N Aimb ..... Nban! ID ______________ Aram ma SAW AID - ----- mearn V °p° slaal ;a or E5 9B Ratio of XW Mae Ii Overage sl(Ge •_... mLo" ----- ---__ O of OW deoh to Overage barW I b . ----- ....... ...... Ranam, o width of OM u0 W _.___ • ng MW/b ----- Hearn _____ _ ............. _..__ o and and rg IF- ud/ w1076 Limb ----- vem° ----- ............ O 01 1000510" to //d1 r x WW#d l lfeane ----- me - ----- ----- Ro MORPHOLOGICAL MEASUREMENTS TABLE STREAM_ NAME A?m_ LocATT01 r =REACH NAME__Ssm-In±mnn pq Sta.--m±x&nn room Existing areo BMW(dl Ro ______________ (mean ----- 1 Ro n ratio Ro _____ /cross- ores -- Meant ----- ull moon vaWYy MOM ----- MOM /moX de0h •-" FRo Width prone area, LIS= ----- 1 n ratio mamb _____ rams o of , MOW F&? Wi widlA mmir ----- ______________ Ra Ire e a --°' WWI% _____ "Sam ----- o r us cu vodne to amrwi iddtn meark ----- Ronm ----- ---------__ Mean! ----- W ----- m am I ______________ e ----- ratio Meandsr - mom ----- SfMos)Yy R _____ ____•••'-- •--- mealk Ts AWOP Siam ______________ / - ? _____ ______________ Ratio Ow-ap _____ x mum POW depth _____ _____ meaft _____ Idl A Rmxm ____________ width W OF Peat width p/I " -90j- ' --'°--------- 27. Pj O to pad nD 0 pod to pad np to W/ width ----- Lim ----- -__._ o /ares?dont pnro --___ ----- NC Rural Mountain Regional Curve 10000 N ? w m 1000 A t u N Ile P O 100 1 10 100 1000 Drainage Area (Sq. mi) NC Rural Mountain Regional Curve 1000 W Q V7 000 or d a V 100 W H X Y C A m 10 1 10 100 1000 Drainage Area (Sq. mi) 1000 NC Rural Mountain Regional Curve LL r 9 100 3 H Y C A m 10 1 10 0 10 100 1000 Drainage Area (Sq. ml) NC Rural Mountain Regional curve . LL_ Z d IL o e A d 5 3 C ar C m 1 0 . 1 10 too 1000 Drainage Area (Sq. ml) Channel Mitigation Monitoring Sheets I, II, III, AND IV Monitoring Data Record Project Title: _ Stream Name: COE Action ID: DWQ Number: City, County and other Location Information: Date Construction Completed: Ecoregion: 8 digit HUC ur USGS Quad Name and Coordinates: Rosgen Classification: Length of Project: Urban or Rural: Monitoring DATA collected by: Applicant Information: Name: _ Address: Telephone Number: Name: _ Address: Telephone Number: Project Status: _ Monitoring Level required by COE and DWQ (404 permit/ 401 Cert.): Level 1 2 3 Monitoring Level I requires completion of Section 1, Section 2 and Section 3 Section 1. PHOTO REFERENCE SITES (Monitoring at all levels must complete this section) Total number of reference photo locations at this site: Dates reference photos have been taken at this site: _ Individual from whom additional photos can be obtained (name, address, phone): Other Information relative to site photo reference: Monitoring Year:( ) of 5 Email address: Consultant Information: Email address: Watershed Size: _ Date: If required to complete Level 3 monitoring only stop here; otherwise, complete section 2. Section 2. PLANT SURVIVAL Attach plan sheet indicating reference photos. Identify specific problem areas (missing, stressed, damaged or dead plantings): Estimated causes, and proposed/required remedial action ADDITIONAL COMMENTS: If required to complete Level 1 and Level 2 monitoring only stop here; otherwise, complete section 3. Section 3. CHANNEL STABILITY Visual Inspection: The entire stream project as well as each in-stream structure and bank stabilization/revetment structure must be evaluated and problems addressed. Report on the visual inspection of channel stability. Physical measurements of channel stability/morphology will not be required. Include a discussion of any deviations from as-built and an evaluation of the significance of these deviations and whether they are indicative of a stabilizing or destabilizing situation. Date Station Station Station Station Station Inspected Number Number Number Number Number Structure T e Is water piping through or around structure? Head cut or down cut resent? Bank or scour erosion resent? Other problems T noted?