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HomeMy WebLinkAbout20140735 Ver 1_401 Application_20140714McGill A S S O C I A T E S July 14, 2014 US Army Corps of Engineers Asheville Regulatory Field Office 151 Paton Ave., Room 208 Asheville, NC 28801 -5006 RE: Lawrence Property, Bank Stabilization Project Pre- Construction Notification, NWP #13 Valle Crucis, NC Dear Sir or Madam: On behalf of our client, Tommy Lawrence, please find enclosed a PCN application for the above referenced project dated July 14, 2014. The purpose of the project is to stabilize a 230 linear foot section of river bank along the Watauga River on the Lawrence property. A NWP #13 is being requested to complete the proposed work. Five copies of the PCN application are being provided to the NCDENR, Division of Water Resources (with a check for $570.00 to cover the 401 permit fee); 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. Sincerely, McGill Associates, P.A. Jo C. Vilas Program Services Manager- Environmental Cc: Central Office, NCDWR with check for $570.00 Doug Besler, NCWRC Mike Trew, PE Municipal Engineering Tommy Lawrence tL mqi JUG 1 6 lu 11 N . -_ -ATER QUAL17-Y E n v i r o n m e n t a l 0 P l a n n i n g o F i n a n c e .McGill Associates, P.A. • 3764 Rominger Road, Banner Elk. North Carolina 18604 Office: 328 -197 -6946 • Far: 828 -197 -1981 jo�00 WA O lqii� '< 2 0 1 4 0 7 3 5 1 w A , 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 1 a. 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 1d. 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 in -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 1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑ Yes ® No 2. Project Information 2a. Name of project: Lawrence Property: Watauga River Bank Stabilization 2b. County: Watauga 2c. Nearest municipality / town: Boone 2d. Subdivision name: 2e. NCDOT only, T.I.P. or state project no: 3. Owner Information 3a. Name(s) on Recorded Deed: Tommy Lawrence 3b. Deed Book and Page No. 814/079 0 i 3c. Responsible Party (for LLC if applicable): 1 l 3d. Street address: PO Box 641 JUL 1 6 1U1, ' q 3e. City, state, zip: Roxboro, NC 27573 3f. Telephone no.: i Stomr*2Kir Bren& 3g. Fax no.: 3h. Email address: 4. Applicant Information (if different from owner) 4a Applicant -is ® Agent ❑ Other, specify- 4b Name 1980275243000/1980274480000 4c Business name (if applicable) Latitude 36 2115 Longitude - 81.7714 4d Street address (DD DDDDDD), ( -DD DDDDDD) 4e City, state, zip 1,05-ac.-/l 24 -ac (Total 2 29 -ac ) 4f Telephone no 4g Fax no. 4h Email address 2b 5. Agent/Consultant Information (if applicable) 5a Name John Vilas 5b Business name (if applicable) McGill Associates, P A 5c Street address 3764 Rominger Road 5d. City, state, zip Banner Elk, NC 28604 5e Telephone no : (828) 297 -6946 5f Fax no 5g Email address- John vilas @mcgillengmeers com B. 'Project Information ,and Prior Project History 1. Property Identification 1a Property identification no (tax PIN or parcel ID) 1980275243000/1980274480000 1 b Site coordinates (in decimal degrees) Latitude 36 2115 Longitude - 81.7714 (DD DDDDDD), ( -DD DDDDDD) 1c Property size 1,05-ac.-/l 24 -ac (Total 2 29 -ac ) 2. Surface Waters 2a 'Name of nearest body of water (stream, river, etc) to Watauga River proposed project 2b Water, Quality Classification of nearest receiving water B, HQW 2c River basin map is available at Watauga River http Hh2o enr state nc us /admen /maps/ 3. Project Description 3a Describe the existing conditions on the site and the general land usehn the vicinity of the project at the time,of this application The Project Site is located at 223 Ryans Place, off of,Dewitt Barnett Road and near historic Valle Crucis The Project Site encompasses approximate 230 If of streambank along the northern side (right bank) of the Watauga River, on two adjoining properties, both of which are owned by Tommy'Lawrence The upstream property has &,residence - located within fourteen feet of the streambank and the second ,property is undeveloped pasture land Severe bank erosion has occurred and continues along the entire4he entire 230 feet of the site bordenng,the Watauga River The entire project site is located within the Regulatory - Floodway, there are no jurisdictional wetlands on the site and the Watauga River is the only jurisdictional Water of the US ,on the site; forming the isouthem property boundary. Across, the river to the,south is a largetihay field There is a single,famdy residence on'the adjacent lot to the east, ,followed by several more similar houses on lots bordering the river further east The area to the north of the site is hay field/pasture for several hundred feet and more houses, further north, on the far side of the valley To the west is a hay field An analysis of aerial photographs from 2007 and 2014 was used to estimate the amount ofmver bank that has been lost to erosion Based, on this analysis, the lower (downstream) 135 linear feet of the site has lost at least 5 to 7 feet of flat ground at the top of the bank Existing river banks are actively eroding, vertical or undercut with almost no riparian vegetation,'banks are 10 to 12 feet'high in this area The upper portion of river bank 'is less eroded, still has several trees and an intact, but stressed and eroding, bankfull bench The edge of the bankfull bench is actively eroding, with one large tree in imminent danger of falling into the river General land use, in the vicinity of project is agricultural and lowAensity single family residential t3b List the total estimated acreag&of all existing +wetlands on the property 0 -ac 3c List the total estimated linear feet of all existing streams (intermittent and perennial) on the proverty 230 If 3d Explain the purpose of the proposed project The purpose of the Lawrence Property project is to rebuild and stabilize 230 If of streambank along the Watauga River 3e Descnbe the overall project in detail, includinathe type,of eguigment,to be used - The project will involve the stabilization and reconstruction of the severely eroded river bank for approximately 135 linear feet and the stabilization�of moderately eroded bank for- approximately`95 linearfeet Lower 135 -foot Section Reconstructed bank sections will involve the placement of large boulders to stabilize the toe of the river bank up to the approximate bankfull elevation Boulders Will be installed about 2 -feet below stream bed if possible to prevent undercutting This section of river bed is dominated by bedrock that may prevent trenching to install the boulders below stream bed but the bedrock (if present) will protect the boulders from 'being undercut Above the boulders, the bank,wdl be stabilized using bioengineering techniques'includmg reinforced brush layering (see details) to a height of roughly 5 feet above the boulders Above the reinforced sod, compacted topsoil will be added to tie into existing yard Upper 95 -foot Section Stabilized bank sections will involve the placement of large boulders to armor the toe of the river bank up to the approximate bankfull elevation, Boulders will be installed about'2 -feet below stream bed if possible to prevent undercutting Above the�boulders, the existing bank will be minimally graded to tie to the boulders Temporary stream impacts will occur during bank stabilization work associated with access to the upper 95 -foot section and installation of the boulder toe stabilization Temporary impacts will include installation of a non - erodible berm to keep flow,away from work area Additionally, equipment will need to operate in the river to construct the upper 95 -foot section, this,is necessary to avoid damaging remaining trees and because the house is so close to the,top of bank in this area, it would be unsafe to attempt operate equipment in that area All temporary impacts will be minimal and site conditions will be restored to an improved state at,the, completion of,the project Following grading work, coin mat 40 or equivalent will be installed along lower bank sections Disturbed' areas will be seeded with a temporary erosion control seed mix and over seeded with native riparian seed mix (ERNST -304) from Ernst Conservation Seeds or similar. Please refer to attached Streambank Stabilization Plan Sheet, Cross Section Views, and Photo Sheet for details, and notes A track excavator, skid -steer loader, and dump truck will be used for the streambank stabilization work 4. Jurisdictional Determinations 4a Have jurisdictional kwetland or stream determinations by,the Corps or State been requested or obtained for this property / project (including all poor phases) in°the past? ❑ Yes ® No ❑ Unknown Comments USAGE has completed a site visit and verified jurisdictional waters on project site 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, Name (if known) Sean Martin and John Vilas Environmental Other 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation Note McGill Associates evaluated site and determined,that no wetlands exist on the site and the onlY1unsdictional water is the Watauga River, see attached JD form 5. Project History 5a Have permits or certifications been requested or obtained for ❑ Yes ® No ❑ Unknown this project (including all prior phases)'in the past? 5b If,yes, explain in detail according to "help file" instructions 6. Future Project Plans 6a Is this a phased project? ❑ Yes ® No 6b If yes, explain 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 Wetland Impacts 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) o_ r (if known) DWQ — non -404, other) (acres) Temporary W1 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ _ W2 ❑ P ❑ T El Yes [I Corps - ❑, No ❑ DWQ W3 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W4 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W5 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No [D' DWQ W6 ❑' P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ 2g. Total wetland Impacts 2h Comments. 2. Stream Impacts 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 Bank stabilization Watauga River ® PER ❑ INT ® Corps ® DWQ 70 230 S2 ❑ P ❑ T ❑ PER ❑'' Corps ❑ INT ❑ 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 ❑ IDWQ S7 ❑ P ❑ T ❑ PER ,❑ Corps ❑ INT [],DWQ 3h Total stream,and tributary Impacts 230 31. Comments 'S -1 includes both temporary and permanent impactsmithinAhe same reach of.nver The temporary impacts are associated with access to,the upper part of the project and temporary placement of non - erodible- matenal'in the river to keep flow away from the work area Permanent impacts are associated with the bouldertoe stabilization, which will'be installed approximately 5- feet�out (towards nver)from existing bank iman effort to partially reclaim some of the bank,that has washed away Maximum fill to be placed below OHW will be approximately 0 8 cubic -yards per linear foot of bank work. 3. 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 indiwduall list all o en water impacts below 4a 4b 4c 4d 4e Open' water Name of waterbody impact number — (if applicable) Type of impact Waterbody type Area of impact (acres) Permanent (P) or Temporary 01 ❑P ❑T 02 ❑P ❑T 03 ❑P ❑T 04 ❑P ❑T 4f. Total open water Impacts 4g, Comments* 4. Pond or Lake Construction If pond, or lake construction proposed,,,, then complete the chart below. _ 5a 5b 5c 5d 5e Wetland Impacts (acres) Stream Impacts (feet) Upland Pond ID Proposed use or purpose (acres) number of and p 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 51 Expected pond surface area (acres) 5) Size of pond watershed (acres) `5k. Method of construction. 6. Buffer'lmpacts (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 any im acts,re uire 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 Zone,2 impact Permanent (P)oor for Stream name mitigation (square feet) (square feet) Temporary impact required. B1 ❑ P'❑ T ❑Yes ❑ No B2 ❑P ❑T El Yes ❑ No B3 ❑ P ❑'T ❑ Yes ❑ No 6h Total buffer impacts 61 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. This project will involve both temporary and permanent impacts but all impacts will be minimal The outcome of'the `project1wdl be to improve overall water quality by addressing the erosion,and bank instability concerns The project has been designed to both provide adequate bank protection to achieve the stated goals but also the reinforced brush layering component will serve to provide increased vegetation on the banks to reduce thermal impacts, improve instream and riparian habitat and provide wildlife cover ,b Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques Disturbed areas of the streambank will be stabilized immediately following completion of grading. Construction of'the boulder wall will be accomplished-from the river for the upper section an order to protect existing trees on the bank, it is felt the long term benefits of retaining these treesfar outweighs the short term impacts from construction A non - erodible will be installed in the river to, isolate the work area and minimize sedimentation For the lower end of'the project the existing bank will be, graded back to create,a bench from which to operate,egwpment and move materials, this will minimize instream work in this section of the project 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 projects ❑ 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 No Banks available in HU 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,usmg stream mitigation, stream temperature ❑ warm ❑ cool [--]cold 4d Buffer mitigation requested (DWQ only) square feet 4e Riparian wetland mitigation requested acres 4f Non - nparian wetland mitigation requested acres 4g Coastal (tidal) wetland mitigation'requested acres 4h Comments S. Complete if Using a Permittee Responsible Mitigation. Plan 5a If using a permittee responsible mitigation plan, provide a'descnption 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 L:1 Yes ® No buffer mitigation? If Yes, you will have to fill out this entire form — please contact the State for more information 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 6c 6d 6e Zone Reason for impact Total impact Multiplier Required mitigation (square feet) (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 riparian buffer restoration, payment into an approved in -lieu fee fund) 116h Comments E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan 1a Does the protect 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 plawricluded? If no, explain why ❑ Yes ❑ No Comments. 2. Stormwater Management Plan 2a What is the overall percent, imperviousness of this project? 146% 2b Does this protect require a Stormwater,Management Plan? ❑ Yes ®No 2c If this protect DOES "NOT require a Stormwater Management Plan, explain why. Stormwater rules are not applicable to Lawrence °Property project using a Nationwide Permit, #13 (WQC #3885). as there are no stormwater requirements with these permits There are no stormwater requirements for the Lawrence Property protect under Land Quality rules There will be no change in impervious cover on the project site 2d If this project DOES require a Stormwater Management Plan, then provide a brief, narrative descrnption,of the plan ❑ Certified Local Government 2e Who will be responsible for the review of the Stormwater Management Plan? ❑ DWQ Stormwater Program ❑ DWQ 401, Unit 3. Certifled,,Locai Government Stormwater Review 3a In which local govemment's tunsdiction is this protect? Watauga County ❑ Phase II 3b Which of the following locally - implemented stormwater management programs ❑ NSW ❑ USMP apply (check all that apply) ❑ Water Supply Watershed El 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 attached? ❑ Yes ❑ No 5. 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 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) land9 - lb If you answered "yes" to the above, does the protect,regwre preparation of an environmental document pursuant to the requirements of the National or State ❑'Yes ❑ 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 ofthe NEPA or SEPA final approval ❑ Yes ❑ No letter) 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 NCAC26.0200)? 2b Is this an after - the -fact permit appli'cabon? ❑ "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 protect (based on past and reasonably anticipated future impacts) result in ❑ Yes ® No additional development, which could impact nearby downstream water quality? 3b. If you answered "yes" to the above, submit a qualitative or quantitative curnulative impact analysis in accordance with the most recent DWQ policy 'If you answered "no," provide a short narrative description Protect will not develop land,for commercial or private purposes including infrastructure 4. Sewage Disposal (DWQ Requirement) 4a Clearly detad[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 new septic or sewage - elimination systems to, beEcreated from proposed,,protect Page 10 of 11 PCN Form — Version 1 3 December 10, 2008 Version 5. Endangered'Species and" Designated ,CriUcal'Habitat�(Corps Requirement) 5a. Will this project occur -in or near an area with federally protected species or habitat? ❑Yes ®IVo 5b. Have you checked with the USFWS concerning Endangered Species Act impacts? El ® No 5c. If yes, indicate the USFWS Field Office you have contacted. ❑ , Raleigh ❑ Asheville 5d What.data�sources did you use to determine-whether your site would impact Endangered Species or Desionated Critical Habitat? http./twww.f%vs.gov/raleigh/specieslcntylisttwatauga.htmi 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? hftp://www.habitatnoaa.gov/protechon/effAabitatmapper.html 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 status (e.g., National Historic Trust'designation or properties significant in North Carolina history and archaeology)? ® Yes ❑ No 7b. What datasources did you use to determine whether your site would imoact historiaor archeological resources? http / /gis ncd&,.gov /hpoweb/ Adjacent to but not within the Valle Crucis Historic District Proposed project wlll�not imoact local historic resources as there,will be only minimal impacts to waterbodles and no new structures to be built 8. 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: Proiect Engineer is inthe process of obtaining a floodplain Development Permit through the Watauga County Planning Inspections Department for the proposed streambank stabilization activity. As part of county permit am3koval, process the project has received an engineer's certification for no nseam the designated,floodway as result of proposed site work 8c. What source(s) did you use to make the floodolain determination? http: //floodmaps.nc.govtf nis/Map.aspx U' -To �_ ,L s Applicant/Agent's Printed Name Applicant/Agents Signature (Agents signatulb is valid only N an authorization letter from the applicant 'is provided - I4 -►LI Date McGill A S S O C I A T F. S AGENT AUTHORIZATION FORM PROJECT NAME: Lawrence Property River Bank Stabilization PROPERTY LEGAL DESCRIPTION: Watauga County PIN 1980 -27 -5243 -000 and 1980- 27 -4480- 000 PARCEL ID. LOT NO. PLAN NO. STREET ADDRESS: _223 Ryans Please Print Property Owner /Representative: _Tommy Lawrence - owner. (If Representative) Title: The undersigned, registered property owners of the above noted property, do hereby authorize John C. Vilas of McGill Associates P.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 /Representative's Address (if different than property above): _PO Box 641, Roxboro, NC 27573 Telephone: _336- 599 -4771 We hereby certify the above information submitted in this application is true and accurate to the best of our knowledge. Authorized S64ature Date: 7-- /Li - / 7 Authorized Signature Date: Environmental Planning Finance .11c Gill Ass ociares. P.A. • 37,54 Ronrrnger Road. Banner Elk. North Carolina 38604 Office: 83S- 29'-6946 • Fax: 838 - 397.1933 03 0 o. cl b C* a w z 0 U z 0 G 0 v b C O ro b Q cC O O 'D T x H 0 0 U z 72 0 U � C W O ai O U � frC Vil Lawrence Property Topographic Map 1 PCN Application June 2014 RIYKR Cr bo ma U _ _ ti 1 - �- as O ; � i • /i': , �/ y � Y J f —'.' • y4 � r� V1 V ENV yRy as r.. 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U b Q � 3 x V .n a� 3 M U s to U i � FLOOD HAZARD INFORMATION NOTES TO USERS SCALE SIZM 0111FWS I0pMIlOMtA1DM�tMY Ri Ox 091C wnOxtre •^••'�•w� « r`� •�•.irpw �P'w.e,�•ir�•m AVATNRrWNq DOtl1k11rTM111�Mlp.1WItAREr 0101IM R10W1A! AMUT HTTP /!FRISNC.GOY'FRIS r.� ^T�ir Mew a.� yaw °. w +•.�ri +�� �' +° e`�•'.. � .�i�M Mw•B lrM•ANrI C i xmINWRWrMWA1Q -MIOIiwO+Arar ... r �_•_: 0 7!0 S00 1.000 utKM �.�.- _^.����s. r�w`s^� OFM srw.. ft~ --m . «.— ��.....� ,,.�"�.,;, •,�•� «•••• o rs iw m _oaAw.raro.Reei R.sr.A.0 ��•+�•��� a �.« PANEL LOCATOR �••� Z owwurr.wpwwwwrMp Aw.rlwlbOriOrrAY r.., ��� wm ....r,.. s���w lfwwRllrrr.n... � `..•�..��? IOAIIWO.I— M.r•relRw. R /Awrlww R1g01rAA1 .w••�•^ r� �..�w' . � e�••r�i. i ^r.%' -.,• YI Ytf� _ _ f OrrRtCriwl,wrw rwr irsMMwRwrb�TMRdrO �� � w,,.. = .`.,tea ^,,,.•" �.� :,"„�'��,�, AIArt f111gAd lwsO.Or rlY.lw. I . ......... w; _ _ w. •� <. rw.rarercrwrrw.wl urrrrw.rr..Aa.PAR" o.►r.crAarrwwurA _ _ _.r.a� O.rrti.�If�wolOAa� cwwr�ww.uaweesm.r H11�4110R •• � MRRIFYr BIrM WA ��r,w�w. «m•�..�..wn � w •. - •- �•._hYtrlrR.10wr0 Emaw,— errftw Aw __ _ -_ R.r Mrl�w Miw•n Al RAM I�aMlefertw LMd%o awe. IAL00 I —k R*m@ awuww.mm- .uuwnnao.euu��orrr Qy � INX�t�CU9GN[S p1TF M1P tea NORTH CAROLINA 0 U C i 7N N C O _O LL l0 C O i7 c0 Z -a 3T1C1f�0001 V, w • Hh W as vo< 115 o� O V)E5 a6 L9 �. z a o � w N a 0. pa U O U F Fi,l a p-+ z zz W Q OG F Uxzn z >o y U 3 =F � 3 3 v 0 N ti a �o Aa Ou O ,:a w44� w� w Photo One: View looking to the southeast at the eastern property boundary (on the fence line) and the edge of the Upper Section of the Lawrence Property Watauga River Bank Stabilization Project. Four foot tall boulder wall will be used to stabilize the low bank and will tie -in at property boundary line. Photo Three: View looking to the southeast at area of severely eroded streambanks in the Lower Section of the Lawrence project. Four foot tall boulder wall and reinforced brush layering at 2:1 slope will be used to stabilize in the Lower Section. Photo Five: View looking to the northeast at Lower Section of the Lawrence project. Area of severely eroded streambank is visible in photo, averaging 10-1 Tin height, most of which are near vertical and actively eroding. Bank erosion is occurring in the direction of the residence seen in background. Photo Two: View looking to the southeast of the vegetated low bank in the Upper Section of the project. Four foot tall boulder wall to follow low bank. Photo Four: View looking to the north at the edge of the Lower Section of the Lawrence project near the western property boundary. Photo Six: View looking to the cast from the top of the streambank in the Lower Section of the Lawrence project. Proximity of residence to areas of severe bank erosion can be seen in photo; closest portion of residential support members is 14' from edge oferoding bank. W R uop °s �H O_ a (~ N z o a¢ U O V] F s� z o C) a < F. �¢ a ,¢a Q 3 Q 3 v 0 N ti 6Frt o �a � U Oa F' a = U L1. CL 1* ti. r F �s A k � i' R d malty • 2007 - S( )L1rC@: WALILIIIa >unr\ - Tax Nlitj�ping, 2(1O r. Sf MITC: GoO�,Jc Lip, 2i.i 14. I ' ' 75� I le. '-': ti C CD 'v E • O O 2 Et + T O fD � r O �9 /''D 4�a,ff, 771 CD PQ 120 4�a,ff, 771 CD PQ Al 4�a,ff, 771 CD PQ O N � o � I Cc Dr =. 0 (D I C I 'O !D - N oxx (_ =r CD as o � Cr CD CD as o = o cD c a o -1 � �r - CD H A P = + . S =r tu O !D CA m O C ,.� • —vim fOA Hd0. ��''•►.._..� . CD Cat • �► t �o a� c7 CD Go 1 CD o n� J rt d�1 mr 1 C CD y 1 y CD w c c CD CD Cr rt O CD C N O a O CD CL •Q !D C C -+ Q. K � CD N X CD a !y O CDO. CD k W O dR O n O CL S r•r �D Typical Boulder Toe Stabilization with Reinforced Brush Layering Above FIGURE 3 July 2014 LAWRENCE PROPERTY( v �� PCN APPLICATION WATAUGA RIVER BANK STABILIZATION A S S O_ C I A_ S' E S WATAUGA COUNTY, NORTH CAROLINA ENVIRONMENTAL SERVICES' nurto�cm an enemm ru ncrosa rx.�ansuxas Reinforced Brush Layering Installation Guidelines MATERIALS: Live Cuttings: Live cuttings shall of one or more of the following species: • Salix nigra - Black Willow • Cornus amomum - Silky Dogwood • Salix sericea - Silky Willow • Physocarpus opulifolius - Nine Bark Cuttings shall be T to 6' long, reasonably straight, free of disease, damage, defects, and 1" to Y' diameter at the base. If 'cuttings were taken form,,actively growing plants (non- dormant) leaves shall be removed. Cuttings shall be kept wet until installation. Non- dormant: cuttings may be stored submerged (50,- %,of length) for up to 5 days. Cuttings with emerging roots shall not be used. Soil Wrap: Soil wrap,shall consist of 100%, spun coir fiber netting, minimum weight -400 g/m2, approximate 10 -ft. roll width (ex. Granite Environmental Control Mat 40 or similar). Staples shall be 11 gage, U- shaped, min. 8" long with 2" crown. Boulders: Large angular boulders suitable for stacking, typical size 4' to 6' long, 2' to 4' wide, 1.5' to 2.5' thick. Some smaller sizes will also be needed. Fill Material: Fill material for soil layer shall be A- horizon topsoil free of large rock, sticks and roots. INSTALLATION 1. Grade back river bank to allow access to toe of slope, create a berm using non- erodible materials to isolate the work area to prevent sedimentation of river. 2. Outer edge of boulder wall and top elevation of boulder wall will be field located by engineer or designer. 3. Footer�rocks' for boulder wall shall be installed 2' below streambed unless bedrock is encountered. 4. Geotextile non -woven fabric (Mirafi 1100N or similar) shall be installed between boulder wall and soil bank, washed gravel or river gravel shall be placed behind boulder wall to fill voids. 5. Construct boulder wall to approx. bankfull elevation, wall slope should be roughly 0.5:1. 6. Place soil wrap over boulder wall with back edge anchored behind boulders and front edge overhanging over boulder wall. a. Add topsoil for first lift, fold soil wrap back over lift and staple at 2 -foot intervals. (front face of first.reinforced soil lift should be set back from edge of boulder wall by approx. 2 -feet to create a small bankfull bench). b. Soil wrap and lift should be thoroughly moistened to a depth of 8- inches to achieve desired compression. Water shall be applied in a fine spray to avoid erosion. c. Height of first; lift -should not exceed 1 =foot compressed additional lifts should be approximately 1.5 -feet thick compressed. d. The top surface of the soil lift should angle, from front to back, down at 10 deg. to 20 deg. (between 3:1 and 4:1). 7. Cuttings shall be placed in layers with approximately 45 cuttings per yard. a. Cuttings shall be placed with minor criss - crossing with different species mixed and evenly distributed. b. Cuttings shall be placed with butt ends ,toward ,bank and leafy ends towards river, butt ends must be lower than leafy ends. c. Leafy ends shall protrude from edge of lift by no more,than 12- inches. 8. Deposit topsoil over cuttings, water liberally and compress to 2" to-4 ". 9. Repeat steps 6; 7, and 8 for 3 additional, lifts. Front face of reinforced:soil wall shall have slope of approximately 2:1. 10. All cuttings shall be covered by a soil wrap layer by the end of each day. 11. Add topsoil in compacted layers above top lift to tie into existing yard. 12. Stabilize upper topsoil layer with light duty, biodegradable, erosion control mat. NC DWQ Strew Identification Foram Version 4.11 Date: (g - l �] - Projed)Site: _ L01w1re41ce Latitude: Evaluator. .511-1 County. W Longitude: Total Points: Stream'isat least inramWent Stream Determination (d a e) Other (,U cis. if a 19 or erenniat if a 30* v Ephemeral Intermittent eg..Quad Name: h. ueomo nol (subtotal=- w 18� Continuity of channel bad and bank 2. Sinuosity of channel along thahM 3. In= channe6structure: ex. riflie- poo},,step.pool , ripple-pool sequence Absent 0 0 0 Weak 1 1 1 Moderate 2 Strong - 14. Leaf litter - 3 2 ' 4. Particle size of stream substrate S. Active/relict flood lain 0 1 r Rininnv - t I c No = 0 - - 3 6. DepositionaUbars or benches 7. Recent alluvial deposits 8. Headcuts 9., Grade control 10. Natural valley 11. Second or reater order channel artificial ditcher: 2m nnr area. �� .rt- _. - -'_ -- _ 0 0 1 0 1 1 0 0.5 0 _ 0.5 tdo = 0 2 3 2 3 2 g 2 3 1 1.5 1 Yes 1 12. Presence of Baseflow 0 1 13. Iron oxidizing bacteria 14. Leaf litter 1 1. 1 15. Sediment on plants or debris 0 0 16. Organic debris lines or piles 0 17. Soli =based evidence of high waWtable? 0.5 r Rininnv - t I c No = 0 18. Fibrous roots in streambed 19. Rooted upland plants In streambec 20. Macrobenthos (note divendty and abi 21. Aquatic Mollusks 22. Fish 23. Crayfish 24. Amphibians 26. Algae 26. Wetland plants in streambed *perennial, streams may also be identified a Sketch: lea) 0 0 0 0 0 0 other mam0ft See p. 35 of r^I 2 1 0.5 ,2 2 0.5 1 1 1 2 ,2 1 1 FACW'= 0.75; OBL =1.5 Other 3 0 1.5 1.5 0 0 3, 3 1.5 1.5 1.5 1.5 9rrLbx (K xa "M JN `xra uarare 'aa 7@JNDYO)l V9tt S3MIAWHS'IVINHMOMANH VNIIO2JVO HiHON 'J.1Nnoo vonvivm S 9 Z V I D O S S d NOIIVZIIISV1S ANUS b3AIH venyiym dbW SNOUIONOO ONUSIX3 w AJLN3dONd 30N3NMVI v�oz 'oz a�nr 31A Ntl�d M `1� m qo V) a 00 J+ cu O O LL p Ol da q, oQb ay ZI to U J ~ O cz 7 U V7 O J N � O � W I m W < U CL p Q o (n 0 o / W I / U O v c tL �ma 0 o / w O J0 L Y U 0 C a is / V \A �a N ,`pQ c o q� / o w v N � c // X O m cu co / o (a. 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