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Home My WebLink About20150773 Ver 1_401 Application_2015080307, M cQ ilI 1 T E July 20, 2015 US Army Corps of Engineers Asheville Regulatory Field Office 151 Patton Ave., Room 208 Asheville, NC 28801-5006 Atte: Tasha Alexander RE: Town of Blowing Rock, Dolores Mulhem, Sunset Drive Streambank Stabilization Pre -Construction Notification, NWP #13 Dear Ms. Alexander: RECEIVED I N C Dept, of ENR JUL 2 7 2015 {° Winston-Salem Regional Office 2 p 1 6 0T� 3 On behalf of our client, Town of Blowing Rock, please find enclosed a PCN application for the referenced project dated July 20, 2015. The purpose of the project is to stabilize an eroded streambank which is posing a safety problem along Sunset Drive in Blowing Rock. A NWP-13 is requested to complete the proposed work. A Jurisdictional Determination for UT -Middle Pork — South Fork New River was issued on February 11, 2015 for a previous project (Town of Blowing Rock, Sunset Drive Culvert Replacement Project, NWP #3) Please see attached copy in PCN application. One courtesy copy of the PCN application is being provided to the NCDENR, Division of Water Resources and one copy of the PCN application is being provided to the NC Wildlife Resource Commission. McGill Associates, P.A. is the Authorized Agent (form included) and should be copied on all project correspondence. Please let us know if you have any questions or comments. Sincereellyy,,� Jc6n C. Vilas McGill Associates, P.A. Program Services Manager- Environmental Cc: Sue Homewood, Winston-Salem Regional Office -NCDWR Andrea Leslie, NC Wildlife Resources Commission Doug Chapman, RE — Project Engineer Scott Fogleman, Town of Blowing Rock — Town manager Dolores Mulhern, Property Owner McGill Associates, P.A. Project # 14.01122 Environmental 0 Planning D Finance Mt Gill Aysociates, P'4 • 468 Area htat lcet Bhvl Ste. B, Boone, Aror,lh Car nlura -78607 Office- (N28)380-1920 • Fer.t-(528) 386-1923 SAMPLE AGENT AUTHORIZATION FORM PROPERTY LEGAL DESCRIPTION: LOT NO. PLAN NO., PARCEL TD: STREET ADDRESS; { { 4 LQ i l -ry ?ujc -o4 Please print: Property Owner:d Property Owner: The undersigned, registered property owners of the above noted property, do hereby authorize Jo� , V" /,:L Of y'lk�t' -a - (Contractor / Agent) (Name of consulting firm) to act on my behalf and take all actions necessary for the processing, issuance and acceptance of this permit or certification and any and all standard and special conditions attached. Property Owner's Address (if different than property above): Telephone: We hereby certify the above information submitted in this application is true and accurate to the best of our knowledge. Authorized Signature Authorized Signature Date: 1—/3 — / . 'r Date: Corp Submittal Cover Sheet Please provide the following info, 1 Project Name: Town of Blowing Rock, Sunset Dr Streambank Stabilization 2 Name of Property Owner/Applicant Right -of -Way. Town of Blowing Rock, Dolores Mulhem 3 Name of Consultant/Agent: McGill Associates, P A *Agent authorization needs to be attached 4 Related/Previous Action ID numbers(s): 5. Site Address. Intersection of Sunset Drive and South White Pine Drive 6. Subdivision Name. 7. City: Blowing Rock 8 County: Watauga 9. Lai: 36 1324 ON 81.66980W 10. Quadrangle Name: Boone, NC I 1 Waterway: UT -Middle Fork South Fork New River 12. Watershed: New River 13 Requested Action: NNationwidePermit# 13 ❑ General Permit# ❑ Juiisdictional Determination Request ❑ Pre -Application Request The following information will he completed by Corps office: AID: Prepare file Folder Assign number in ORM Begin Date Authorization: Section 10 Section 404 Pioject Description/ Nature of Activity/ Project Purpose: Site/Waters Name: r9711-11 OF W AT�c9 -ITN' Office Use Only Corps action ID no. DWQ project no. Form Version 1.3 Dec 10 2008 Pre -Construction Notification (PCN) Form A. Applicant Information 1. Processing 1a. Type(s) of approval sought from the Corps ®Section 404 Permit El Section 10 Permit 1 b Specify Nationwide Permit (NWP) number, 13 or General Permit (GP) number - 1c. Has the NWP or GP number been verified by the Corps? ❑ Yes ® No Id. Type(s) of approval sought from the DWQ (check all that apply): ❑ 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit ❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization 1 e. Is this notification solely for the record because written approval Is not required? For the record only for DWQ 401 Certification: ® Yes ❑ No For the record only for Corps Permit. ❑ Yes ® No 1f. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts? If so, attach the acceptance letter from mitigation bank or to -lieu fee program. ❑ Yes ® No 1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h below ❑ Yes ® No 1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑ Yes ® No 2. Project Information 2a. Name of project- Town of Blowing Rock, Sunset Drive Bank Stabilization Project 2b. County Watauga 2c. Nearest municipality / town: Blowing Rock 2d. Subdivision name: Echo Park 2e. NCDOT only, T.I.P. or state project no - 3. Owner Information 3a Name(s) on Recorded Deed* Right -of -Way, Town of Blowing Rock, Dolores Mulhern 3b. Deed Book and Page No DB 1759 P 909 3c. Responsible Party (for LLC if applicable) Scott Fogleman, Town Manager (see Section 4 below) 3d. Street address: 114 South White Pine Drive 3e. City, state, zip: Blowing Rock, NC 28605 3f Telephone no.. 917-544-3004 3g. Fax no.: 3h. Email address. lorry@greenparkinn.com Town of Blowing Rock, Cornish Road Culvert Replacement Project Page 1 of 13 NWP #3 PCN Application December 12, 2014 4. Applicant Information (if different from owner) 4a Applicant is, ❑ Agent ® Other, specify: Public Works 4b. Name: Scott Fogleman, Town manager 4c. Business name (if applicable). Town of Blowing Rock 4d. Street address: 1036 Main Street 4e. City, state, zip: Blowing Rock; NC 28605 4f. Telephone no.: (828) 295-5200 4g. Fax no.: (828) 295-5202 4h. Email address: manager@townofblowingrock.com 5. AgentlConsuitant Information (if applicable) 5a. Name. John C Was 5b. Business name (if applicable)- McGill Associates, P.A. 5c. Street address: 468 New'Market Blvd. Ste B 5d. City, state, zip: Boone, NC 28607 5e. Telephone no . (828) 386-1920 5f. Fax no.- (828) 386-1923 5g Email address: John_vilas@mcgillengineers.com Town of Blowing Rock, Comish Road Culvert Replacement Project NWP #13 PCN Applicabon Page 2 of 13 July 20, 2014 B. Project Information and Prior Project History 1. Property Identification 1a. Property identification no (tax PIN or parcel ID) Project Site is in the Right-of-Way of Sunset Drive 1 b Site coordinates (in decimal degrees)- Latitude: 36.1324 Longitude: - 81.6698 (DD DDDDDD) (-DD DDDDDD) 1c Property size. N/A 2. Surface Waters i 2a. Name of nearest body of water (stream, river, etc ) to Middle Fork South Fork New River proposed project: 2b. Water Quality Classification of nearest receiving water: WS-IV: + 2c. River basin: map is available at New River http://h2o-enr.state.nc.us/admin/maps/ Town of Blowing Rock, Cornish Road Culvert Replacement Project NWP #3 PCN Application Page 3 of 13 December 12, 2014 3. Project Description 3a Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application. The Project Site is an eroded stream bank on an intermittent, unnamed tributary to Middle Fork South Fork New River, in the Echo Park neighborhood of Blowing Rock, NC. UT -Middle Fork -South Fork New River (UT -MF) averages 6' in width and 8-10% slope within the Project Site. The right streambank of UT -MF at approximately 150 feet west of the Sunset Drive and S White Pine Drive intersection is severely eroded, near vertical, and 5 to 7 feet high for roughly 20 feet through the Site. UT -MF has eroded to the point where it is a potential hazardlsafety concern for Sunset Drive and an existing sewer line The surrounding area of the Project Site is a single family residential neighborhood located on a steep hillside. The neighborhood sits above the Town of Blowing Rock and continues up the hillside to the Blue Ridge Parkway The neighborhood contains many paved steep roads that contribute to a flashy drainage area to the Project Site. The drainage area for the Project Site is approximately 7 -acres. 3b. List the total estimated acreage of all existing wetlands on the property N/A 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: Tributaries have not been delineated beyond the scope of the Project Site. Project Site encompasses approximately 35 linear feet of intermittent, unnamed tributary to Middle Fork South Fork New River. 3d. Explain the purpose of the proposed project - The Town of Blowing Rock, Sunset Drive Bank Stabilization Project will make repairs to the eroded right streambank of UT -Middle Fork -South Fork New River along Sunset Drive. The proposed work will shift the stream channel south away from Sunset drive Improvements will be made to open stream flow, create low benches for flood control, and stabilize both streambanks within the project area. These repairs'will eliminate erosion problems and sediment pollution, improve road safety, and eliminate potential damaging effects to Sunset Drive and the existing sewer line 3e. Describe the overall project in detail, including the type of equipment to be used: The Town of Blowing Rock, Sunset Drive Bank Stabilization Project proposes to repair an eroded stream bank on an intermittent, unnamed tributary to Middle Fork South Fork New River (UT -MF) in the Echo Park neighborhood of Blowing Rock, NC. Typical construction excavation equipment will be used including track hoes and dump trucks. The proposed work will involve the installation of a boulder structure (approx. 26 L F. and Eft tall) along the right bank of UT -MF Compacted stone backfill (washed ballast stone 3-6°) shall be placed between the boulders -and the soil bank to fill voids, promote positive drainage, and create some road shoulder. Geotextile non -woven filter fabric shall be installed between the boulder wall and stone backfill Boulders are to have a median diameter between 2 — 2.5ft, structure' slope should be roughly 0.5:1. Footer rocks for the boulder wall shall be installed 1ft below streambed unless bedrock is encountered. A pump -around diversion will be used so that all work will occur in the dry.(see attached plans and details) Stream flow will be improved by excavating the existing inner berm (approx. 3ft) along the left streambank and creating a narrow (approx. Oft) low bench (approx 213 Bkf) along the left bank Disturbed areas along the left bank will be stabilized with coir fiber matting, live stakes, and native NC mountains riparian seed mix. A narrow (approx 2.5ft) berm will be constructed along the base of the boulder wall utilizing the inner berm material from the left bank excavation. The new berm along the boulder wall shall be stabilized with erosion control matting, live stakes, and native NC mountains wetland seed mix. Live stakes shall be tamped in on 2ft intervals along both low bench edges to a minimum depth of 18" with 6" of stake end protruding from the ground. The thalweg will be shifted from the right bank to the center or right of center. Final bankfull width for the improved channel shall be approx. 611 with a maximum designed depth of approx. 1.2ft (see attached plans and details) Town of Blowing Rock, Cornish Road Culvert Replacement Project NWP #13 PCN Application Page 4 of 13 July 20, 2014 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / project (including all prior phases) in the past? ® Yes ❑ No ❑ Unknown Comments. Town of Blowing Rock, Sunset Dr. Culvert Replacement Project 4b. If the Corps made the jurisdictional determination, what type ® Preliminary ❑ Final of determination was made? 4c. if yes, who delineated the jurisdictional areas? Agency/Consultant Company: McGill Associates, P.A. Name (if known). Sean Martin, John Vilas Other. 4d If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. February 11, 2015 S. Project History 5a. Have permits or certifications been requested or obtained for ® Yes ❑ No ElUnknown this project (including all prior phases) in the past? 5b. If yes, explain in detail according to "help file" instructions. A NWP #3 was issued on 2/11/2015 and re -verified on 6/12/2015 for impacts to the UT -Middle Fork -South Fork New River in the Right -of -Way of Sunset drive approximately 400' upstream. These two projects are unrelated except for proximity. 6. Future Project Plans 6a. Is this a phased project? ❑ Yes ® No 6b If yes, explain_ Town of Blowing Rock, Cornish Road Culvert Replacement Project NWP #13 PCN Application Page 5 of 13 July 20, 2014 C. Proposed Impacts Inventory 1. Impacts Summary la. Which sections were completed below for your project (check all that apply)• ❑ 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) or (if known) DWQ — non -404, other) (acres) 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 ❑ T ❑ Yes ❑ 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 number - (PER) or (Corps - 404, 10 stream length Permanent (P) or intermittent DWQ — non -404, width (linear Temporary (T) (INT)? other) (feet) feet) S1 ❑ P ®T Stabilization UT -Middle Fork South Fork New ❑ PER ®INT ® Corps DWQ 6 35 River S2 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S3 ❑ P ❑ T ❑ PER ❑ Corps [:11 NT ❑ DWQ S4 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S5 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S6 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ 3h. Total stream and tributary Impacts 35 31. Comments. 35 linear feet of temporary impacts associated with streambank stabilization, and pump -around diversion Town of Blowing Rock, Cornish Road Culvert Replacement Project NWP #13 PCN Application Page 6 of 13 July 20, 2014 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 indiv dually list all open water impacts below. 4a. 4b 4c Open water Name of waterbody impact number — (if applicable) Type of impact Permanent (P) or Tem ora 4d Waterbody type 4e. Area of impact (acres) 01 ❑P❑T 02 ❑ PEI T 03 ❑ PEI T 04 ❑P❑T 4f. Total open water Impacts 49 Comments: 5. Pond or Lake Construction If pond or Lake construction proposed, then complete the chart below 5a Pond ID number 5b, Proposed use or purpose of pond 5c Wetland Impacts (acres) 5d. Stream Impacts (feet) 5e. Upland (acres) 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: Town of Blowing Rock, Cornish Road Culvert Replacement Project NWP #13 PCN Application Page 7 of 13 July 20, 2014 6. Buffer Impacts (for DWQ) I i If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts below. If any impacts require mitigation, then you MUST fill out Section D of this form. r 6a. ❑ Neuse ❑ Tar -Pamlico ❑ Other: Project is in which protected basin? ❑'Catawba ❑ Randleman j 6b. 6c. 6d. 6e. 6f. 6g_ Buffer impact number — Reason Buffer Zone 1 impact Zone 2 impact Permanent (P) or for Stream name mitigation (square feet) (square feet) I Temporary T impact B1 ❑P❑T -required?. El Yes ❑ No B2 ❑P❑T El Yes ❑ No B3 ❑P❑T El Yes ❑ No 6h. Total buffer impacts 61. Comments: Town of Blowing Rock, Cornish Road Culvert Replacement Project NWP #13 PCN Application Page 8 of 13 July 20, 2014 D. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project New boulder wall construction along the right streambank will be limited to the eroded/damaged area minimizing disturbance. Excavation along the left streambank will be minimal, special care will be taken not to disturb the area during high water or rain events. b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Streambanks and disturbed areas will be stabilized with erosion control matting, native erosion control seed mixes, and live stakes No sediment and erosion control measures in stream channel. A pump -around diversion will be used so that all work will occur in the dry 2. Compensatory Mitigation for Impacts to Waters of the U.S, or Waters of the State 2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S_ or Waters of the State? ❑ Yes ® No 2b If yes, mitigation is required by (check all that apply)- ❑ DWQ ❑ Corps 2c. If yes, which mitigation option will be used for this project? ❑ Mitigation bank ❑ Payment to in -lieu fee program ❑ Permittee. Responsible Mitigation 3. Complete If Using a Mitigation- Bank 3a. Name of Mitigation Bank: 3b. Credits Purchased (attach receipt and letter) Type Quantity 3c Comments: 4. Complete if Making a Payment to In -lieu Fee Program 4a. Approval letter from in -lieu fee program is attached. ❑ Yes 4b Stream mitigation requested- linear feet 4c. If using stream mitigation, stream temperature. ❑ warm ❑ cool ❑cold 4d Buffer mitigation requested (DWQ only)- square feet 4e. Riparian wetland mitigation requested, acres 41'. Non -riparian wetland mitigation requested. acres 4g. Coastal (tidal) wetland mitigation requested acres Town of Blowing Rock, Cornish Road Culvert Replacement Protect NWP #13 PCN Application Page 9 of 13 July 20, 2014 4h. Comments 5. Complete if using a Permittee Responsible Mitigation Plan 5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan_ 6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ 6a. Will the project result in an impact within a protected riparian buffer that requires buffer mitigation? If yes, you will have to fill out this entire form — please contact the State for more information El Yes ® No 6b If yes, then identify the square feet of Impact to each zone of the riparian buffer that requires mitigation Calculate the amount of mitigation required. Zone 6c. Reason for impact 6d. Total impact (square feet) 6e. Multiplier Required mitigation (square feet) Zone 1 3 (2 for Catawba) Zone 2 1 5 6f Total buffer mitigation required: 6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e g., payment to private mitigation bank, permittee responsible npanan buffer restoration, payment into an approved in -lieu fee fund). 6h. Comments: Town of Blowing Rock, Cornish Road Culvert Replacement Project NWP #13 PCN Application Page 10 of 13 July 20, 2014 E. Stormwater Management and Diffuse Flow Pian (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? 1 b. 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? No change in site imperviousness 2b Does this project require a Stormwater Management Plan? ❑ Yes ® No 2c If this project DOES NOT require a Stormwater Management Plan, explain why: No stormwater rules using a NWP #13 I application 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan* ❑ Certified Local Government 2e. Who will be responsible for the review of the Stormwater Management Pian? ❑ DWQ Stormwater Program ❑ DWQ 401 Unit 3. Certified Local Government Stormwater Review 3a In which local government's jurisdiction is this project? Town of Blowing Rock ❑ Phase Il 3b. Which of the following locally -Implemented stormwater management programs ❑ NSW ❑ 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 ❑ HQW 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 ❑ Yes ❑ No attached? S. DWQ 401 Unit Stormwater Review 5a 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 11 of 13 F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) 1 a. 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 El Yes No (North Carolina) Environmental Policy Act (NEPAISEPA)? 1 c 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 letter ❑ Yes ❑ No ) Comments: 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 ® No or Riparian Buffer Rules (15A NCAC 2B 0200)? 2b. Is this an after -the -fact permit application? ❑ Yes ® 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 El 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. No change from the original or intended use, no extension of services 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. No sewage disposal associated with this project. Page 12 of 13 6. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or ® Yes ❑ No habitat? 5b Have you checked with the USFWS conceming Endangered Species Act Yes ❑ No impacts? ❑ Raleigh 5c. If yes, indicate the USFWS Field Office you have contacted. ® Asheville 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? http://fws govlraleiohlspecies/cntylist/watau ac .html The project area includes potential habitat for the Northern Long-eared Bat but the proposed project will not involve the cutting of any trees, the project will also occur after August 15, 2015 and before May 15, 2016 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as essential fish habitat? ❑ Yes ® No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? http://ccma nos.noaa.gov/products/biogeography/sa-efh/ 7. Historic or Prehistoric Cultural Resources (Corps Requirement) 7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation ❑ Yes ® No status (e.g , National Historic Trust designation or properties significant in North Carolina history and archaeology)? 7b. What data sources did you use to determine whether your site would impact historic or archeological resources? http://gis. ncdcr_gov/hpoweb/ Project site is located more than 2,000 feet from the Green Park Historic District and nearest historical structure. 6. Flood Zone Designation (Corps Requirement) 8a Will this project occur in a FEMA -designated 100 -year floodplain? ❑ Yes ® No 8b. If yes, explain how project meets FEMA requirements: 8c What source(s) did you use to make the floodplain determination? http://fris.nc gov/fris/Home.aspx?ST=NC No mapped floodplains within Project Site John C. Vilas 7/20/2015 Applicant/Agent's Printed Name Date pplicantlAgent's Signature (Agent's signatu�d is valid only if an authorization letter from the applicant Is provided Town of Blowing Rock, Cornish Road Culvert Replacement Project NWA #13 PCN Application Page 13 of 13 July 20, 2014 uscs TOPocRArrluc STACK S DRIVMcGfll i� pRo7Ecr # STREAMBACK STABILIZATION BOONENC 14.01122 ASSOCIATES JULY 20.2015 TOWN OF BLOWING ROCK ENVIRONMMTAL FINANCE WATAUGA COUNTY, NORTH CAROLINA 4OMMwUe MVD MgB00W CMW MMI) IM Kusa � v c � Murr,.s sr 0 Mayvlew Perk 3 a s` t• ka`s nye n 3 Echo S", c} d5 Park a IrIJ N G � a o yi Mld�f� O JL' d ' G c O CTahr" - L 3 oot �1 y� yrrr .o n farrwa - a S sr x ° ndr was v r Ub y fir. -r r+.,17i�Mpill+�wrr_�r.Vy. ` V1 Of � `••�,a, � GRAPHIC SCALE (FEET) SOURCE: SSRI, IIIItE DELORML•, USGS, INTERMAR INCREMENT P CORP., NRCAN, cr1 or 0 1900 3800 , SSRI JAPAN, METI, ESRI CHINA, SSRI'n [AILAND, MAPMYBVDIA, OPENSTREETMAP V lJ S CONTRIBUTORS, GIS USER COMMUNI'T'Y 41 le is Approximate SUNSET DRIVE LOCATION MAP PROJECT # STREAMBACK STABILIZATION JULY 20, 2015 14.01122 TOWN OF BLOWING ROCK WATAUGA COUNTY, NORTH CAROLINA McG A S S O C I A T E S ENVIRONMENTAL FINANCE 468 NEW MARKET BLVD. STE 8 BODNE, NC 29607 PH. (828) 386-1920 J� erre x. �^ Shelf p A 4j 7 w q,rch$ o `2 raft '31 s, blowing Rock M�Pfe N v c � Murr,.s sr 0 Mayvlew Perk 3 a s` t• ka`s nye n 3 Echo S", c} d5 Park a IrIJ N G � a o yi Mld�f� O JL' d ' G c O CTahr" - L 3 oot �1 y� yrrr .o n farrwa - a S sr x ° ndr was v r Ub y fir. -r r+.,17i�Mpill+�wrr_�r.Vy. ` V1 Of � `••�,a, � GRAPHIC SCALE (FEET) SOURCE: SSRI, IIIItE DELORML•, USGS, INTERMAR INCREMENT P CORP., NRCAN, cr1 or 0 1900 3800 , SSRI JAPAN, METI, ESRI CHINA, SSRI'n [AILAND, MAPMYBVDIA, OPENSTREETMAP V lJ S CONTRIBUTORS, GIS USER COMMUNI'T'Y 41 le is Approximate SUNSET DRIVE LOCATION MAP PROJECT # STREAMBACK STABILIZATION JULY 20, 2015 14.01122 TOWN OF BLOWING ROCK WATAUGA COUNTY, NORTH CAROLINA McG A S S O C I A T E S ENVIRONMENTAL FINANCE 468 NEW MARKET BLVD. STE 8 BODNE, NC 29607 PH. (828) 386-1920 M . A � I i �S (EXISTING GRAVITY I I ` (SEWER LINE I I i EXISTING EDGE I 0.00 EPAS ,,FEXIST ING EDGE S TOP OF BANK 0 EATING EDGE 'r r - _ — BOTTOMIQF BATH l �r ! I j ��l_- _ -KEYNEW BML -RS-- - - - PROPOSED MEEK I - Y CHANNEL/ / /TEM ARY RIP l''� �� . Im / �- - • EXISTING ...P _ TOR- Y • • CR�EK 1.I-+ -r f i I 1'I 1 1 1lI�I I I I Illi I I I�J) I I y.-r't rf`I 35 — : iXISTING EYO — LIVE STAKE$ SOW BO'I`TOM-OF B - �4 No 3405 J-Y"T I j i l jl�l 1�1• I I/ISI 1 I 1 t I I I 1 I I� .LI -L -1-I� 1 1 �� EXISTING EDGE - _ - f TO_ P -OF -BANK _ 47.25 TYPICAL STREAMBANK PROJECT # STABILIZATION 14.01122 JULY 20, 2015 -I - A— T_ 1 T - �---- I 1 1 L� ----- I ---'`--- ---�— — I 1 1 I SUNSET; DRIVE � I EXISTIIIlG GRAVITY I r �.5 1 SEWERIMANHOLEES.J 1 \ 111 �- -'.--341. - KEY_NEMLB_0ULDE -INTO EXISTING �.: T-1-1 1 I I I I I rl-i 4-t 6' Bk -f, i .. .._ , _N1 CTEAIPOR�AR I • f � lot1j IES __ - JEXISTING - STuMP_ 3r l Vl-- � '�XISTINGrFO� BRIDGE (NOT TO BE DISTURBED) f SUNSET DRIVE STREAMBACK STABILIZATION -EMSTING -SHRUBS-! _ - (NGT TO- _- ._ -- -RE BTU QED)/ / X TING / / ! ' ErK 1 J/ GRAPHIC SCALE (FEET) dmax - 1.2' WBkf - 6.0' A - 3.9 sgft 0 10 20 J - 0.65' Scale is Approximate TOWN OF BLOWING ROCK WATAUGA COUNTY, NORTH CAROLINA McGH1 ASSOCIATES ENVIRONMENTAL FINANCE 465 NEW MARKET BLVD. SIE 0 BOONS. NC 266U1 PH. IN28) 3N6-1920 Construction Notes: 1. Construct boulder wall to cesigned elevation; wall slope should be roughly 0.5:1. Boulders to have a median diameter be tween 2 -2.5'. 2. Footer rocks for boulder will shall be installed 1' below streambed unless bedrock is encountered. 3. Geotextile non -woven filter fabric (Mirafi 1100N or similar) shall be installed between boulder wall antd compacted stone backfill, washed ballast stone (3 -6 ") shall be placed behind boulder wall to fill voids. 4. Remove inner berm from 1 :ft streambank to cpen stream flow, excavate a low bends (approx. 4'; 2/3 Bkf). Stabilize w/ ctoir mat geotextile (900 Coir Mat or equivalent) and seed w/ native NC mountains riparian seed mix (ERNST seed mix #304 or sim filar). 5. Create a berm/low bench along base of boulder wall using inner berm material front left streambank Stabilize w/ erosion control mat (Double Sided Straw Erosion Blanket) and seed w/ native NC mountains wetland seed mix (ERNST seed mix #305 or similar). 6. Live stakes (Silky Dodgwood, cornus amomum; Silky Willow, salir sericeu) shall be soaked in water 24-48 hours prior to installation. Livte stakes shall be planted in the dormant season (Oct. 1- Mayl). Live stakes should be spaced at 2' intervals along low bench edges and tamped to a minimum depth of 18" with 6" of stale end protruding from the ground. Existing Top of Bank Existing Bottom of Bank Coir Fiber Matting w/ Native Riparian Seed Mix Existing Grade Proposed Low Bench (2/3 Bkf) Edge of Pavement Existing Top of Bank Proposed Gravel Shoulder —� Existing Grade Existing Bottom of Bank EC Matting w/ Wetland Seed Mix 6.0' Bkf 1.2'd.. 1 mi,rav J Live Stakes Existing Grade - Inner Berm to be removed to open stream flow Backfill w/ Inner Berm Material from Left Streambank. Non -Woven Filter Cloth Match Gravel to Road Elevation Compacted Stone Backfill Proposed Cutface GRAPHIC SCALE (FEET) 0 3 6 Scale is Approximate TYPICAL STREAMBANK STABILIZATION JULY 20, 2015 PROJECT # 14.01122 SUNSET DRIVE STREAMBACK STABILIZATION TOWN OF BLOWING ROCK WATAUGA COUNTY, NORTH CAROLINA McGill A S S O C I A T E S ENVIRONMENTAL FINANCE 468 NEw MARKET BLVD. STE B BOONE, NC 28607 PH, (828) 3861920 Elevation TYPICAL CROSS SECTION - Scale: 1 " = 5' 3416 _._ . 3416 Grade3414 - -//—Existing - --------------- - Existing Grad ._ , 3414 Approximate 3412 Bank fAl 3412 Proposed % ' 3410 Existing Inner Berm Constructed % _ . - Berm f.� 341 Proposed Outface 3408 - - - 3408 Proposed Low Bench --' ----""- Proposed Thalweg—/ 3406 Existing Thalweg 3406 0+00 0+10 0+20 0+30 TYPICAL STABILIZATION AND PLANTING PLAN UT - MIDDLE FORK SOUTH FORK NEW RIVER r -Live Stakes 2'—t Approximate Bankfull Width 6.0' 0+40 0+50 TYPICAL PLANTING PLAN - LIVE STAKE DETAILS Live Stake 1. Live Stake 2' 2' Live Stake PLAN VIEW Coir Fib�,Ma�t Normal Flow Channel Approx. Ground Elevation Approx.7.5' 2.5' Wide Above Ground Begin Matting at Erosion Control Mat 2/3 1/2 Bankfull Approx.4.5' Beneath Ground Live Stakes * Not to Scale SECTION VIEW * Not to Scale TYPICAL SUNSET DRIVE STREAMBANK PROJECT # STREAMBACK STABILIZATION McG STABILIZATION 14.01122 A S S o C I A T E S JULY 20, 2015 TOWN OF BLOWING ROCK ENVIRONMENTAL FINANCE WATAUGA COUNTY, NORTH CAROLINA 468 NEW MARKET BLVD, SII B BWN@, NC 28607 PH. (828) 386.1720 Photo One: View looking up stream on UT -Middle Fork South Fork New River. Existing sewer manhole and eroded bank can be seen top and center of photo. Sunset Drive in background. Photo Two: View looking down stream on UT -Middle Fork South Fork New River. Existing eroded bank and inner berm can be seen center of photo. Sunset Drive in background. Photo Three: View looking across stream (left to right) on UT -Middle Fork South Fork New River Existing sewer manhole and eroded bank can be seen top and center of photo. Sunset Drive in background. Photo Four: View looking down stream on UT -Middle Fork South Fork New River. Existing eroded bank showing potential hazard and damage to Sunset Drive_ SUNSET DRIVMcGM PHOTO SHEET PROJECT # i STREAMBACK STABILIZATION JULY 20, 2015 14.01122 A S S O C I A T E S TOWN OF BLOWING ROCK ENVIRONMENTAL FINANCE WATAUGA COUNTY, NORTH CAROLINA 461ANMARBErELVD.MRHOME NC7W RL(Yn)3uimu