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HomeMy WebLinkAbout20091120 Ver 1_More Info Received_20091228n ti 2 02 00 y?STT?k 9 v December 23, 2009 l" ROOM Public Works Department Engineering Division North Carolina Division of Water Quality 7 cydwi„".o -s,km 11 Transportation Permitting Unit ro. xox zs NC 27102 1650 Mail Service Center ?i 336.727.2141 Raleigh, NC 27699-1650 5. 336''2 Os' www.c ryn g RE: Response to request for additional information Application for Section 404 Nationwide Permit 14 and Section 401 Water Quality Certification for the Extension of Motor Road from Old Rural Hall Road (SR 2207) to Old Walkertown Road (SR 2456) Forsyth County, North Carolina. City Project No. 200303. Dear Mrs. Sullins: In response to your letter requesting more information dated November 2, 2009, please find the attached revised Pre-Construction Notification (PCN) form sheets, revised permit drawings 1 and 2, NCEEP letter accepting payment for mitigation of the stream impacts, Plans showing storm water management locations, and revised storm water management plan summary. If you have any questions or need additional information, please call me at 747-6833. Sincerely, ENGINEERING DIVISION off.( ??'? Todd Love, P.E. Project Engineer Cc: Amy Euliss-NCDWQ Winston-Salem ?c C. Proposed Impacts Inventory 1. Impacts Summary 1a. Which sections were completed below for your project (check all that apply): H ? Wetlands ® Streams - tributaries ? Buffers ? open waters ? Pond Construction 2. Wetland Impacts if there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 2a. 2b. 2c. 2d. 2e. 2f. Wetland impact Type of jurisdiction number - Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact Permanent (P) (if known) DWQ - non-404, other) (acres) or Temporary T W1 ? P ? T ? Yes ? Corps ? No ? DWQ W2 ? P ? T ? Yes ? Corps ? No ? DWQ W3 ? P ? T ? Yes ? Corps ? No ? DWQ W4 ?P?T ? Yes ? Corps ?No ?DWQ W5 ? P ? T ? Yes ? Corps ? No ? DWQ W6 ? P F1 T E-1 Yes L] Corps ? No ? DWQ 2g. Total wetland impacts 2h. Comments: 3. Stream Impacts If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites impacted. 3a. 3b. 3c. 3d. 3e. 3f. 3g. Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact length number- (PER) or (Corps - 404, 10 stream (linear feet) Permanent (P) intermittent DWQ - non-404, width or Temporary (T) (INT)? other) (feet) S1 ®P ®T Culvert UT1 to Fivemile ® PER ® Corps 9.0 218(perm) Branch ? INT ® DWQ 22 (temp) UT2 to Fivemile ? PER ® Corps ! 297(perm) 38 (temp) S2 ® P ® T Culvert Branch ® INT ®DWQ 4.5 134(perm)DWQ 8 (temp)DWQ S3 ? P ? T ? PER ? Corps ? INT ? DWQ S4 ?P?T ? PER ? Corps ?INT ?DWQ S5 ? P ? T ? PER ? Corps ? INT ? DWQ S6 ? P ? T ? PER ? Corps ? INT ? DWQ ! 515(perm) 3h. Total stream and tributary impacts 60 (temp) 3i. Comments: NCDWQ Total Impacts = 352 LF (perm) 30 LF (temp). Temporary impacts are due to temporary dewatering of the stream during culvert installation. Permanent impacts at the sites are due to proposed culvert installations. Page 5 of 11 PCN Form - Version 1.3 December 10, 2008 Version 4. Open Water Impacts If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of the U.S. then individually list all open water impacts below. 4a. Open water impact number - Permanent (P) or Temporary 4b. Name of waterbody (if applicable) 4c. Type of impact 4d. Waterbody type 4e. Area of impact (acres) 01 ?P?T 02 ?P?T 03 ?P?T 04 ?P?T 4f. Total open water impacts 4g. Comments: 5. Pond or Lake Construction If and or lake construction proposed, then complete the chart below. 5a. 51b. 5c. Wetland Impacts (acres) 5d. Stream Impacts (feet) 5e. Upland (acres) Pond ID number Proposed use or purpose of pond Flooded Filled Excavated Flooded Filled Excavated Flooded P1 P2 5f. Total 5g. Comments: 5h. Is a dam high hazard permit required? ? Yes ? No If yes, permit ID no: 5i. Expected pond surface area (acres): 5j. Size of pond watershed (acres): 5k. Method of construction: Page 6 of 11 PCN Form - Version 1.3 December 10, 2008 Version 6. Buffer Impacts (for DWQ) If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts below. If an impacts require mitigation, then you MUST fill out Section D of this form. 6a. ? Neuse ?Tar-Pamlico ? Other: Project is in which protected basin? ? Catawba ? Randleman 6b. 6c. 6d. 6e. 6f. 6g. Buffer impact number - Reason Buffer Zone 1 impact f t Zone 2 impact uare feet) s Permanent (P) for Stream name mitigation ) (square ee q ( or Temporary impact required? T ?Yes 61 ?P?T ? No ?Yes B2 ?P?T ? No ?Yes B3 ?P?T ? No 6h. Total buffer impacts 6i. Comments: D. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. In extreme fill locations 2:1 fill slopes have been utilized. Rip rap will be used to reduce erosion at pipe outlets and roadway ditches. Preformed scour holes will be used to reduce erosion and sedimentation.The roadway typical section will consist of grass shoulder berms, grass fill slopes, and grass lined roadway ditches. 1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Best Management Practices (BMP's) for construction will be used during the culvert installation. Sediment and erosion control measures will be used during the construction. The no-build alternative to this project would not address the core purpose and need for the project which is to provide congestion relief and traffic safety. 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State 2a. Does the project require Compensatory Mitigation for I ® Yes ? No impacts to Waters of the U.S. or Waters of the State? 2b. If yes, mitigation is required by (check all that apply): ® DWQ ® Corps ? Mitigation bank 2c. If yes, which mitigat ion option will be used for this ®Payment to in-lieu fee program project? pro ? Permittee Responsible Mitigation 3. Complete if Using a Mitigation Bank 3a. Name of Mitigation Bank: 31b. Credits Purchased (attach receipt and letter) Type Quantity Page 7 of 11 PCN Form - Version 1.3 December 10, 2008 Version E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan la. Does the project include or is it adjacent to protected riparian buffers identified ? Yes ® No within one of the NC Riparian Buffer Protection Rules? 1b. If yes, then is a diffuse flow plan included? If no, explain why. ? Yes ? No Comments: 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project? n/a % 2b. Does this project require a Stormwater Management Plan? ® Yes ? Nb 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, na rrative description of the plan: See attached ? Certified Local Government 2e. Who will be responsible for the review of the Stormwater Management Plan? ? DWO Stormwater; Program ® DWQ 401 Unit 3. Certified Local Government Stormwater Review 3a. In which local government's jurisdiction is this project? ? Phase II ? NSW 3b. Which of the following locally-implemented stormwater management programs ? USMP apply (check all that apply): ? Water Supply Watershed ? Other: 3c. Has the approved Stormwater Management Plan with proof of approval been ? Yes ? No attached? 4. DWQ Stormwater Program Review ? Coastal counties; ? HOW 4a. Which of the following state-implemented stormwater management programs apply ? ORW (check all that apply): ? Session Law 2006-246 ? Other: 4b. Has the approved Stormwater Management Plan with proof of approval been attached? ? Yes ? No 5. DWQ 401 Unit Stormwater Review Sa. Does the Stormwater Management Plan meet the appropriate requirements? ? Yes ? No 5b. Have all of the 401 Unit submittal requirements been met? ? Yes ? No Page 9 of 11 PCN Form - Version 1.3 December 10, 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) la. Does the project involve an expenditure of public (federal/state/local) funds or the ® Yes ? No use of public (federal/state) land? 1b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State ? Yes N No (North Carolina) Environmental Policy Act (NEPA/SEPA)? 1c. If you answered "yes" to the above, has the document review been finalized by the State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval ? Yes ? No letter.) Comments: j 2. Violations (DWQ Requirement) 2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ? Yes N No or Riparian Buffer Rules (15A NCAC 2B .0200)? 2b. Is this an after-the-fact permit application? ? Yes N No 2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s): 3. Cumulative Impacts (DWQ Requirement) 3a. Will this project (based on past and reasonably anticipated future impacts) result in ED Yes ? No additional development, which could impact nearby downstream water quality? 3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent DWQ policy. If you answered "no," provide a short narrative description. See attached 4. Sewage Disposal (DWQ Requirement) 4a. Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. not applicable Page 10 of 11 PCN Form -Version 1.3 December 10, 2008 Version r -,Fcosstem Pal -cin el PROGRAM December 9, 2009 Todd Love City of Winston-Salem PO Box 2511 Winston-Salem, NC 27102 cbS'T?2`5c"?c 'a$le- 9 Expiration of Acceptance: September 9, 2010 Project: Motor Road Extension County: Forsyth The purpose of this letter is to notify you that the North Carolina Ecosystem Enhancement Program (NCEEP) is willing to accept payment for impacts associated with the above referenced project. Please note that this decision does not assure that the payment will be approved by the permit issuing agencies as mitigation for project impacts. It is the responsibility of the applicant to contact these agencies to determine if payment to the NCEEP will be approved. You must also comply with all other state, federal or local government permits, regulations or authorizations associated with the proposed activity including SL 2009-337• An Act to Promote Compensatory Mitigation by Private Mitigation Banks. This acceptance is valid for nine months from the date of this letter and is not transferable. If we have not received a copy of the issued 404 Permit/401 Certification/CAMA permit within this time frame, this acceptance will expire. It is the applicant's responsibility to send copies of the permits to NCEEP. Once NCEEP receives a copy of the permit(s) an invoice will be issued based on the required mitigation in that permit and payment must be made prior to conducting the ruthorized work. The amount of the In Lieu Fee to be paid to NCEEP by an applicant is calculated based upon the Fee Schedule and policies listed at www.nceep.net. Based on the information supplied by you the impacts that may require compensatory mitigation are summarized in the following table. River Basin CU Location Stream (feet) Wetlands (acres) Buffer I (Sq. Ft.) Buffer 11 (Sq. Ft.) Cold Coot Warm Riparian Non-Riparian Coastal Marsh Impact Yadkin 03040101 0 0 360 0 0 0 0 0 Credits Yadkin 03040101 0 0 720 0 0 0 0 0 Upon receipt of payment, EEP will take responsibility for providing the compensatory mitigation. If the regulatory agencies require mitigation credits greater than indicated above, and the applicant wants NCEEP to be responsible for the additional mitigation, the applicant will need to submit a mitigation request to NCEEP for approval prior to permit issuance. The mitigation will be performed in accordance with the Memorandum of Understanding between the N.C. Department of Environment and Natural Resources and the U.S. Army Corps of Engineers dated November 4, 1998. If you have any questions or need additional information, please contact Kelly Williams at (919) 716-1921. cc: Cyndi Karoly, NCDWQ Wetlands/401 Unit IohnThomas, USACE-Raleigh Amy Euliss, NCDWQ-Winston-Salem File Sincerely, Wil ' D. Gilmore, PE ?w Director R.utorivcg... Ehka."... Protect6'Kg Oar State ern OUR North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27699-1652 / 919-715-0476 / www.nceep.net V'ln 00 STORMWATER MANAGEMENT PLAN City of Winston-Salem Project No. 200303 Forsyth County, North Carolina Motor Road Extension from Old Rural Hall Road to Old Walkertown Road City Project Engineer: Todd Love, P.E. PROJECT DESCRIPTION The City of Winston-Salem proposes to extend an existing portion of Motor Road 0.75 miles to the Old Walkertown Road/Carver School Road intersection in Winston-Salem. The scope of the work includes grading, drainage, paving, guardrail, signal and signing improvements. The typical roadway section will be a three (3) lane curb and gutter facility with center turn-lane. This project also provides for the construction of a new sidewalk. Drainage systems consist of grated inlets with pipe networks, vegetated ditches and preformed scour holes at pipe outlets. The project also proposes to widen an existing portion of Motor Road between Old Rural Hall Road (SR 2207) and Baux Mountain Road (SR 1946) to a three lane facility. The proposed improvement will help improve safety by moving left turning traffic out of the through lanes. These roadway improvements will result in additional impervious area of approximately 6.10 acres. ENVIRONMENTAL DESCRIPTION The project is located near the divide between the Yadkin-Pee Dee and the Roanoke River basin in Forsyth County North Carolina. Water resources in the area include Mill Creek, Fivemile Branch and Unnamed Tributaries to Fivemile Branch. Fivemile Branch is a perennial stream that flows south to north just outside the project boundaries and has a best usage classification of C. All waters within the project flow into the Fivemile Branch and do not have an assigned Stream Index Number by the N.C. Division of Water Quality. The surrounding area is rolling piedmont with natural ground elevations between approximately 950 and 1000 feet. Existing land use varies from forested land and residential development along the project. Neither High Quality Waters (HQW), Water Supplies (WS-I - WS-IV) are located within 1.0 mile of the project area. BEST MANAGEMENT PRACTICES The primary goal of Best Management Practices (BMP's) is to prevent degradation of the states surface waters by the location, construction and operation of roadway system. The BMP measures used on this project to reduce stormwater impacts are: • The roadway typical section consists of grassed shoulders, wooded or grassed fill slopes, and grass lined roadway ditches. • The hydraulic design minimizes water quality impacts by using pre-formed scour holes and vegetated ditches with rock checks to reduce erosion. • Rip rap was used where warranted to reduce erosion at pipe outlets and within roadway ditches. • In steep fill locations, 2:1 fill slopes were used to minimize impacts. • Some non-structural Best Management Practices area such as public outreach and education and litter control are applicable to the project. STORM WATER MANAGEMENT SUMMARY TABLE DRAWING NUMBER PIPE OUTLET NUMBER DRAINAGE AREA DESCRIPTION BMP TREATMENT SHT4 410 WIDENING NONE (LIMITED R/W SHT 10 # 18 WIDENING NONE (LIMITED R/W/STEEP GRADE) SHT 6 # 39A NEW 2.3 AC PSH TREATMENT SHT 7 # 42 NEW 0.28 AC NONE STEEP GRADE SHT 7 # 44 NEW 0.54 AC NONE (STEEP GRADE) SHT 7 # 47 NEW 0.11 AC NONE STEEP GRADE SHT 7 # 50 NEW 1.87 AC PSH TREATMENT SHT 9 # 1 WIDENING NONE (LIMITED R/W) SHT 9 # 7 WIDENING NONE (LIMITED Pipe Outlet #10 drains to an existing natural drainage feature. Limited right of way is available at this location because of its proximity to private residences. Pipe Outlet # 18 drains to a proposed roadway grass ditch but because of steep grade in the existing terrain the grass ditch does not meet BMP design criteria. Pipe Outlet #42 drains to an existing natural drainage feature. Pipe Outlet #44 drains to a proposed grass line ditch but because of steep grade in the existing terrain the grass ditch does not meet BMP design criteria. Pipe Outlet 47 drains to a proposed grass lined ditch. A pre-formed scour hole (PSH) at this location is not feasible because of steep grades. Pipe Outlet #1 drains to an existing roadway grass ditch. Limited right of way is available at this location because the existing road (Victoria Street) is within 30 feet of a church building. Pipe Outlet # 7 drains to an existing roadway grass ditch. Limited right of way is available at this location because the existing road (Quail Drive) is adjacent to a convenience store parking lot. The BMP measures used on this project to reduce stormwater impacts are Preformed Scour Holes. These measures are designed in accordance with the latest version of the NCDOT Stormwater Best Management Practice toolbox. 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