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Home My WebLink About20140762 Ver 7_R-2915 Modification Ashe-Watauga April 18 2022_20220417 STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION ROY COOPER J.ERIC BOYETTE GOVERNOR SECRETARY Mailing Address: NC DEPARTMENT OF TRANSPORTATION ENVIRONMENTAL ANALYSIS UNIT 1598 MAIL SERVICE CENTER RALEIGH NC 27699-1598 Telephone: (919) 707-6000 Fax: (919) 250-4224 Customer Service: 1-877-368-4968 Website: www.ncdot.gov Location: 1000 BIRCH RIDGE DRIVE RALEIGH NC 27610 April 18, 2022 U. S. Army Corps of Engineers Regulatory Field Office 151 Patton Avenue, Room 208 Asheville, NC 28801-5006 ATTN: Ms. Lori Beckwith NCDOT Coordinator Subject: Request for Modification to the Section 404 Individual Permit and Section 401 Water Quality Certification for the proposed US 221 Widening from US 421 to US 221 Business/NC 88 in Jefferson in Watauga and Ashe Counties. Federal Aid Project No. STP-0221(13), Division 11, TIP No. R-2915. Debit $570 from WBS 34518.1.FR6. Reference: USACE Individual Permit Action ID SAW-2012-00882, January 7, 2015. USACE Individual Permit Modification ID SAW-2012-00882, August 31, 2016 USACE Individual Permit Modification ID SAW-2012-00882, December 7, 2017 USACE Individual Permit Modification ID SAW-2012-00882, December 27, 2019 Request for 404 Modification, September 24, 2021 NCDWR Project No. 20140762, Certification No. 4001, September 8, 2014. NCDWR Project No. 20140762_v2, Certification No. 4001, August 23, 2016 NCDWR Project No. 20140762_v3, Certification No. 4001, April 28, 2017 NCDWR Project No. 20140762, e-mail authorization, November 27, 2017 NCDWR Project No. 20140762_v4, Certification No. 4001, June 26, 2018 NCDWR Project No. 20140762_v5, Certification No. 4001, May 22, 2019 NCDWR Project No. 20140762_v6, Certification No. 4001, November 4, 2021 Dear Madam: The purpose of this letter is to request a modification of the United Stated Army Corps of Engineers (USACE) Section 404 Individual Permit and North Carolina Division of Water Resources Section 401 Certification for the above referenced project. This modification presents a new permit site in the D R-2915 Individual Permit Modification Application Page 2 of 8 Section, Site 18A, added to address a slope failure adjacent to stream S113 (US to Beaver Creek). To prevent further erosion, the installation of a new pipe to carry a portion of S113 will result in additional permanent and temporary impacts. All changes in impacts due to the new pipe and the associated temporary dewatering impacts at Site 18A in the D Section are in red italics. Please see the enclosed revised DMS acceptance letter and revised permit drawings for Section D. Summary of R-2915 Jurisdictional Impacts: Impacts for the overall (Sections A-E) project will include 3.05 acres of permanent wetland impacts, 0.28 acre of temporary wetland impacts, and 0.05 acre of hand clearing in wetlands. There will also be 9,467 linear feet of permanent stream impacts (7,805 linear feet of fill and 1,662 linear feet of bank stabilization), and 0.46 acre of temporary stream impacts (see Tables 1 and 2 for a breakdown of impacts by Section). Table 1 – Summary of Wetland Impacts for R-2915 (no change) Section Design Stage Wetland Impact Type Wetland Impact Area (ac) Wetland Impacts Requiring Mitigation (ac)* R-2915A Final Perm. Wetland Fill 0.48 0.57 Excavation in Wetlands 0.01 Mechanized Clearing in Wetlands 0.08 Hand Clearing in Wetlands 0.05† R-2915B Final Perm. Wetland Fill 0.32 0.43 Excavation in Wetlands 0.04 Mechanized Clearing in Wetlands 0.06 Temporary Fill in Wetlands 0.15 R-2915C Final Perm. Wetland Fill 0.22 0.27 Excavation in Wetlands -- Mechanized Clearing in Wetlands 0.05 R-2915D Final Perm. Wetland Fill 1.01 1.32 Excavation in Wetlands 0.01 Mechanized Clearing in Wetlands 0.30 R-2915E Final Perm. Wetland Fill 0.28 0.46 Excavation in Wetlands 0.05 Mechanized Clearing in Wetlands 0.13 Temporary Fill in Wetlands 0.13 Total 3.05 †Additionally, 0.01 acre of temporary fill in wetlands will occur in the hand clearing areas for erosion control measures * Values are based on rounding, due to calculating totals with actual numbers to the thousandths R-2915 Individual Permit Modification Application Page 3 of 8 Table 2 – Summary of Stream Impacts for R-2915 Section Design Stage Stream Impact Type Impact Length (lf) Temporary Impacts (ac) Stream Impacts Requiring Mitigation (lf) R-2915A Final Permanent Fill 1,119 -- 1,119 Bank Stabilization 402 -- Temporary -- 0.05 R-2915B Final Permanent Fill 493 -- 493 Bank Stabilization 431 -- Temporary -- 0.15 R-2915C Final Permanent Fill 2,339 -- 2,339 Bank Stabilization 234 -- Temporary -- 0.09 R-2915D Final Permanent Fill 2,947 -- 2,947 Bank Stabilization 126 -- Temporary -- 0.09 R-2915E Final Permanent Fill 907 -- 907 Bank Stabilization 469 -- Temporary -- 0.08 Total 9,467 0.46 7,805 Tables 3 and 4 summarize the impacts to jurisdictional water resources for the final design of R-2915D. Site numbers correspond with the permit (hydraulic) drawings included in this application. A description of the new impact site 18A will follow the tables. Table 3 – R-2915D Wetland Impacts* (no change) Site Wetland Number Wetland Size (ac) Permanent Fill in Wetlands (ac) Excavation (ac) Mechanized Clearing (ac) Impacts Requiring Mitigation (ac) 2 W53 0.02 <0.01 -- -- <0.01 3B W58 0.05 <0.01 <0.01 0.02 0.03 4 W59** 0.14 0.10 -- 0.04 0.14 7 W63 0.39 0.25 -- 0.05 0.30 13 W72 0.02 <0.01 <0.01 -- 0.01 14 W78 0.74 0.03 <0.01 0.01 0.05 15 W76 0.30 <0.01 -- 0.02 0.02 16 W77 1.86 -- -- <0.01 <0.01 17A W79 0.25 0.06 -- 0.01 0.07 19 W81**/W82** 0.01/0.06 0.07 -- <0.01 0.07 20B W85 0.03 <0.01 -- <0.01 0.01 21 W86** 0.18 0.17 <0.01 -- 0.18 22 W88 0.06 <0.01 -- <0.01 <0.01 24 W89 0.09 <0.01 -- 0.01 0.02 25 W93 0.54 0.11 -- 0.05 0.15 27 W94 0.04 0.04 -- <0.01 0.04 28 W95 0.52 <0.01 -- 0.02 0.02 30 W95 0.52 0.04 -- 0.06 0.10 R-2915 Individual Permit Modification Application Page 4 of 8 Table 3 continued – R-2915D Wetland Impacts* (no change) Site Wetland Number Wetland Size (ac) Permanent Fill in Wetlands (ac) Excavation (ac) Mechanized Clearing (ac) Impacts Requiring Mitigation (ac) 31 W96 0.3 0.06 -- <0.01 0.07 32 W98 0.07 0.02 -- <0.01 0.02 Total Impacts 1.01 0.01 0.3 1.32*** * All wetlands impacted are riparian ** Total take of wetland *** Values are based on rounding, due to calculating totals with actual numbers to the thousandths Table 4 – R-2915D Stream Impacts Site Stream Name & Intermittent (I) or Perennial (P) 1 Stream Number Impact Type Impact Length (linear feet) Temporary Impacts (acres) Mitigation Requirement2 (linear feet) 1 UT to Old Field Creek (I) S87 Perm. fill 312 -- USACE & DWR Bank Stabilization -- -- -- Temp. fill -- <0.01 -- 2 N/A (wetland only) -- -- -- -- -- 3A UT to Old Field Creek (P) S90 Perm. Fill 60 -- USACE Bank Stabilization -- -- -- Temp Fill -- -- -- 3B UT to Old Field Creek (P) S92a Perm. Fill 56 -- USACE Bank Stabilization -- -- -- Temp Fill -- <0.01 -- 4 UT to Old Field Creek (P) S92a Perm. Fill -- -- -- Bank Stabilization -- -- -- Temp Fill -- <0.01 -- 5 UT to Old Field Creek (P) S92b Perm. Fill 57 -- USACE Bank Stabilization 19 -- -- Temp Fill -- -- -- 6 Old Field Creek (P) S56 Perm. Fill 120 -- USACE & DWR Bank Stabilization 48 -- DWR Temp. Fill -- <0.01 7 N/A (wetland only) -- -- -- -- -- 8 UT to Old Field Creek (P) S95 Perm. Fill -- -- -- Bank Stabilization 15 -- -- Temp. Fill -- -- -- 9 UT to Old Field Creek (P) S102 Perm. Fill 126 -- USACE Bank Stabilization -- -- -- Temp. Fill -- <0.01 -- 10 UT to Old Field Creek (P) S104 Perm. Fill 396 -- USACE & DWR Bank Stabilization -- -- -- Temp. Fill -- -- -- 11 UT to Old Field Creek (P) S95 Perm. Fill -- -- -- Bank Stabilization 11 -- -- Temp. Fill -- -- -- R-2915 Individual Permit Modification Application Page 5 of 8 Table 4 continued – R-2915D Stream Impacts Site Stream Name & Intermittent (I) or Perennial (P) 1 Stream Number Impact Type Impact Length (linear feet) Temporary Impacts (acres) Mitigation Requirement2 (linear feet) 12 UT to Beaver Creek (P) S106 Perm. Fill 51 -- USACE Bank Stabilization -- -- -- Temp. Fill -- <0.01 -- 13 N/A (wetland only) -- -- -- -- -- 14 UT to South Beaver Creek (P) S111 Perm. Fill 162 -- USACE & DWR Bank Stabilization -- -- -- Temp. Fill -- <0.01 -- 15 UT to South Beaver Creek (P) S111 Perm. Fill 12 -- USACE & DWR Bank Stabilization -- -- -- Temp. Fill -- -- -- 16 N/A (wetland only) -- -- -- -- -- 17A UT to South Beaver Creek (P) S112 Perm. Fill 28 -- USACE Bank Stabilization -- -- -- Temp. Fill -- <0.01 -- 17B UT to South Beaver Creek (P) S112 Perm. Fill 12 -- USACE Bank Stabilization -- -- -- Temp. Fill -- -- -- 18 UT to Beaver Creek (P) S115 Perm. Fill 491 -- USACE & DWR Bank Stabilization -- -- -- Temp. Fill -- -- -- 18A UT to Beaver Creek (P) S113 Perm. Fill 320 -- USACE & DWR Bank Stabilization -- -- -- Temp. Fill -- 0.04 -- 19 UT to Beaver Creek (P) S116 Perm. Fill 100 -- USACE Bank Stabilization -- -- -- Temp. Fill -- <0.01 -- 20A UT to Beaver Creek (P) S117 Perm. Fill 55 -- USACE Bank Stabilization -- -- -- Temp. Fill -- <0.01 -- 20B UT to Beaver Creek (P) S118 Perm. Fill 57 -- USACE Bank Stabilization -- -- -- Temp. Fill -- <0.01 -- 21 UT to Beaver Creek (P) S119 Perm. Fill 49 -- USACE Bank Stabilization -- -- -- Temp. Fill -- <0.01 -- 22 UT to Beaver Creek (P) S120 Perm. Fill 61 -- USACE Bank Stabilization -- -- -- Temp. Fill -- -- -- 23A UT to Beaver Creek (P) S122 Perm. Fill 19 -- USACE Bank Stabilization -- -- -- Temp. Fill -- -- -- R-2915 Individual Permit Modification Application Page 6 of 8 Table 4 continued – R-2915D Stream Impacts Site Stream Name & Intermittent (I) or Perennial (P) 1 Stream Number Impact Type Impact Length (linear feet) Temporary Impacts (acres) Mitigation Requirement2 (linear feet) 23B UT to Beaver Creek (P) S123 Perm. Fill 66 -- USACE Bank Stabilization -- -- -- Temp. Fill -- <0.01 -- 24 UT to Beaver Creek (I) S125 Perm. Fill 22 -- USACE Bank Stabilization -- -- -- Temp. Fill -- <0.01 -- 25 UT to Beaver Creek (P) S127 Perm. Fill 12 -- USACE Bank Stabilization -- -- -- Temp. Fill -- -- -- 26 Beaver Creek S124 Perm. Fill 75 -- USACE Bank Stabilization 33 -- -- Temp. Fill -- 0.01 -- 27 UT to Beaver Creek (P) S126 Perm. Fill 134 -- USACE & DWR Bank Stabilization -- -- -- Temp. Fill -- -- -- 28 N/A (wetland only) -- -- -- -- -- 29 UT to Beaver Creek (P) S126 Perm. Fill 69 -- USACE & DWR Bank Stabilization -- -- -- Temp. Fill -- -- -- 30 N/A (wetland only) -- -- -- -- -- 31 N/A (wetland only) -- -- -- -- -- 32 UT to Beaver Creek (P) S128 Perm. Fill 25 -- USACE Bank Stabilization -- -- -- Temp. Fill -- <0.01 -- Total Temporary Impacts: -- 0.093 -- Total Perm. Impacts (Perm. Fill + Bank Stabilization): 3,073 -- -- Permanent Impacts Requiring DWR Mitigation: 2,064 -- -- Permanent Impacts Requiring USACE Mitigation: 2,947 -- -- Total Impacts Requiring Mitigation: 2,947 -- † 1 – All streams are Class C; Tr+ waters 2 – Mitigation for bank stabilization impacts required by DWR – not required by USACE 3 – Values are based on rounding, due to some of the individual impacts being <0.01 acre † – Final mitigation requirement will be up to the USACE and DWR Permit Site 18A: In 2021, a landowner alerted NCDOT maintenance staff of an issue adjacent/left of approximate Sta. 610+00 within Section D of R-2915 in Ashe County. Maintenance staff visited the site and reported a long section of deeply incised and actively eroding stream bed. In addition, a large “island” of mature trees on the slope was starting to slide because of the eroding stream. If this continues, the road shoulder may collapse and cause a partial loss of the roadway. The area containing the issue is entirely within NCDOT right of way, but is heavily wooded and did not receive any ground disturbance during R-2915 Individual Permit Modification Application Page 7 of 8 construction of the D Section. Furthermore, the area of concern is below the roadway, so is completely out of view to regular NCDOT maintenance activities. As a result, it may have occurred many years ago. In contrast, the upper portion of the stream that is visible beside R-2915D is in good shape. It was determined that the stream used to flow into a system of 12” corrugated metal pipes (CMPs) that measured 113’ in length (date of installation unknown, but pre-R-2519D), that carried the UT down a steep rocky slope into the wooded ravine below, where the stream was once again free flowing. Pieces of this pipe system are now separated and washed downstream, and the stream now flows down the rocky slope. However, the area flowing over the steep hillside is in good shape/stable and has naturalized with mosses, ferns, etc. As a result, NCDOT will leave this previously piped area unpiped, to remain as daylighted stream reach. The erosion issue begins where this stream hits the valley floor. There is a deeply incised stream section (20’ deep in some places) that extends for approximately 320’. This reach becomes less incised, and contains less erodible riparian area as you progress downstream. As mentioned, a section of the adjacent hillside including trees is starting to slide. To address this issue, NCDOT will install a temporary dewatering pipe that will start at the top of the hillside beside R-2915D, and carry the stream along the right of way fence and back into the existing stream channel directly below the proposed reach to be piped. This will result in 450 linear feet of temporary dewatering. The 320’ long incised portion of stream channel with then be filled with rock and soil, and a series of four 36” high density polyethylene (HDPE) pipes will be buried near the surface of this new fill. While the proposed pipes are all at a 10% grade, three drop inlets (spaced every 100’ along the pipe system) will be installed to reduce velocity, and convey runoff from the wooded hillside along R-2915D and the large grassy field on the other side of the project into the pipe system. Along with the proposed drop inlets, existing instream rock at the proposed outlet of the pipe system will further help reduce the chances of scour. As mentioned, a previous pipe system (estimated to be a 113’ x 12” CMP) used to carry water down the steep slope to where this new pipe system will begin. We will leave this area unpiped, and install an open throat catch basin at the start of the new pipe system, which will collect the stream flowing down the steep slope and convey it into the new HDPE pipe. Once complete, the stream will be turned into the new system and the temporary dewatering pipe will be removed. All disturbed ground will be seeded and stabilized. While piping a stream is not typically environmentally favorable, the existing stream condition is in very poor shape (with a low NCSAM rating) and actively eroding. Furthermore, while we can’t say the R- 2915D project, or historical work on HWY 221, didn’t in some way cause all or part of this issue, discussions with past staff have suggested that this stream section has been in poor shape for > 20 years. As mentioned, one entire side of the UT is a large pasture with a couple houses and little to no riparian area, and washouts on that side of the stream suggest high levels of runoff into the stream from that direction. As such, it is plausible that historical issues (logging/clearing/development) not entirely related to NCDOT may have in some ways resulted in the current situation. The proposed work should drastically improve downstream conditions by removing additional sediment from the stream, and should fix a hazardous situation regarding the potential loss of the roadway to a future storm event. Furthermore, given the limitations within our right of way and possible solutions, a better fix to the problem is not readily available. Total impacts at this new site due to this modification are 320 linear feet of permanent stream impacts due to the new pipe and 0.04 acre (450 lf) of temporary impacts to stream S113 (UT to Beaver Creek Creek). *Of note, 320 linear feet of the temporary impacts to S113 overlap with the permanent impacts, meaning that the dewatering activities only add 130 linear feet of impacts to the cumulative total. R-2915 Individual Permit Modification Application Page 8 of 8 MITIGATION At this time, DMS is providing compensatory mitigation for all impacts. An additional 320 linear feet of mitigation within the D Section is required due to the new pipe installation at Site 18A (described above). Please see the revised DMS acceptance letter for the D Section dated April 7, 2022. Table 5 summarizes the total mitigation needs as 3.05 acres of wetland impacts and 7,805 linear feet of stream impacts. Table 5 – Summary of Mitigation Requested from DMS Section Design Stage Wetland Impacts Requiring Mitigation (ac) Stream Impacts Requiring Mitigation (ac) R-2915A Final 0.57 1,119 R-2915B Final 0.43 493 R-2915C Final 0.27 2,339 R-2915D Final 1.32 2,947 R-2915E Final 0.46 907 Total 3.05 7,805 REGULATORY APPROVALS Section 404: Application is hereby made for a modification to the USACE Individual 404 Permit as required for the above-described activities, in addition to the activities described in the modification request sent September 24, 2021 (identified in the reference list in this application). Section 401: We are hereby requesting a modification to the 401 Water Quality Certification from the N. C. Division of Water Resources for the above-described activities. A copy of this application and distribution list will also be posted on the NCDOT website at: http://connect.ncdot.gov/resources/Environmental. If you have any questions or need additional information, please contact Erin Cheely at ekcheely@ncdot.gov or (919) 707-6108. Sincerely, Philip S. Harris III, P.E., C.P.M. Environmental Analysis Unit Head ec: NCDOT Permit Application Standard Distribution List April 7, 2022 Mr. Philip S. Harris, P.E., CPM Environmental Analysis Unit North Carolina Department of Transportation 1598 Mail Service Center Raleigh, North Carolina 27699-1598 Dear Mr. Harris: Subject: DMS Mitigation Acceptance Letter: R-2915D, US 221 Widening from South of NC 194 to US 211 Bypass, Ashe County References: USACE 404 Individual Permit issued January 7, 2015 (USACE Action ID 2012-00882) NCDWR 401 Water Quality Certification issued September 8, 2014 (NCDWR ID 2014-0762) The purpose of this letter is to notify you that the Division of Mitigation Services (DMS) will provide the additional compensatory wetland mitigation for the subject project. Based on the information supplied by you on April 6, 2022, the impacts are located in CU 05050001 of the New River basin in the Northern Mountains (NM) Eco-Region, and are as follows: Table 1 – Additional Impacts (feet / acres) New 05050001 NM Stream Wetlands Buffer (Sq. Ft.) Cold Cool Warm Riparian Non- Riparian Coastal Marsh Zone 1 Zone 2 Impacts (feet/acres) 320.000 0 0 0 0 0 0 0 *NOTE: Some of the stream impacts may be proposed to be mitigated at a 1:1 mitigation ratio. See permit application for details. This additional impact and associated mitigation needs were not projected by the NCDOT in the 2022 impact data. DMS is currently providing stream and wetland mitigation for the impacts associated with this project located in cataloging unit 05050001 of the New River basin as required by the 404 and 401 permits issued in January 2015 and September 2014, as shown in the below table (in mitigation credits) Mr. Harris TIP R-2915D April 7, 2022 Page Two Table 2 – Current Permitted Impacts and Associated Mitigation Requirements provided by DMS (based on issued permits) and Revised Anticipated Impacts (based on mitigation request) Impact Type Total Permitted Impacts (feet / acre / sq ft) Mitigation Provided by DMS per Issued Permits (Credits) Additional Impact (for approval) Revised Total Impacts* Stream (cold) 2,627.000 5,254.000 320.000 2,947.000 Riparian Wetland 1.320 2.640 0 1.320 *Some of the additional stream impacts may be proposed to be mitigated at a 1:1 mitigation ratio. See permit application for details. DMS will provide the amount of mitigation as determined by the regulatory agencies. DMS commits to implementing additional sufficient compensatory stream mitigation credits to offset the impacts associated with this project as determined by the regulatory agencies using the delivery timeline listed in Section F.3.c.iii of the In-Lieu Fee Instrument dated July 28, 2010. If the above referenced impact amounts are revised, then this mitigation acceptance letter will no longer be valid and a new mitigation acceptance letter will be required from DMS. If you have any questions or need additional information, please contact Ms. Beth Harmon at 919-707- 8420. Sincerely, James B. Stanfill Asset Management Supervisor cc: Mr. Monte Matthews, USACE – Raleigh Regulatory Field Office Ms. Amy Chapman, Division of Water Resources, Wetlands/401 Unit File: R-2915D for Start temporarydewateringEnd temporarydewateringTemporarydewatering pipe -450' x 24" HDPE320' PermanentImpact from new36" HDPE HandExisting Existing Permanent Temp. Excavation Mechanized Clearing Permanent Temp. Channel Channel Natural SiteStationStructureFill In Fill In in Clearing in SW SW Impacts Impacts StreamNo.(From/To)Size / TypeWetlands Wetlands Wetlands in Wetlands Wetlands impacts impacts Permanent Temp. Design(ac) (ac) (ac) (ac) (ac) (ac) (ac) (ft) (ft) (ft)1 21+40-23+21-TIE-L-RROAD FILL0.02 < 0.01 312 462 25+56 -TIE- RROAD FILL< 0.013A 474+48-474+65 -L- LROAD FILL< 0.01603B 474+65-475+42 -L- LROAD FILL< 0.01< 0.01 0.02< 0.01 < 0.01 56734 477+62-480+95 -L- LROAD FILL0.100.04< 0.01195 482+68-483+36 -L- LROAD FILL0.0157STREAMBANK STABILIZATION< 0.01196504+48 -L-ROAD FILL0.05120STREAMBANK STABILIZATION< 0.01 < 0.01 48257 505+57-508+66 -L- LROAD FILL0.250.058522+90-L- R STREAMBANK STABILIZATION< 0.01159 536+74-538+06 -L- LROAD FILL0.03 < 0.01 126 2210 540+58-544+48 -L- LROAD FILL0.1839611 544+82 -L- RSTREAMBANK STABILIZATION< 0.011112 564+82 -L- RROAD FILL< 0.01 < 0.01 511113 577+76 -L- LROAD FILL< 0.01< 0.0114587+50 -L-ROAD FILL0.03< 0.01 0.01< 0.01 < 0.01 162 1415 588+39-589+14 -L- RROAD FILL< 0.010.02< 0.011216 591+57 -L- RROAD FILL< 0.0117A 591+38-594+35 -L- LROAD FILL0.060.01< 0.01 < 0.01 282317B 594+07 -L- RRIP RAP< 0.011218 606+30-610+13 -L- RROAD FILL0.0149118A610+00 -L- FILL (36" HDPE)0.030.0432013019 610+14-613+04 -L- RROAD FILL0.07< 0.01< 0.01 < 0.01 100 12SUBTOTALS*:0.55< 0.01 0.150.380.062396375*Rounded totals are sum of actual impactsNOTES:ATN Revised 3/12/13SHEET 51OF 52 WETLAND PERMIT IMPACT SUMMARYWETLAND IMPACTSSURFACE WATER IMPACTSR-2915D ASHE COUNTYON US 221 FROM SOUTH OF NC 194TO US 221 BYPASS* SITE 4 - ADDITIONAL 0.04 ACRE ACCOUNTED FOR AS FILL IS ADDED DUE TO TOTAL TAKE OF WETLAND* SITE 18A - Temporary impacts total 450 linear feet, but 320 linear feet overlap with the permanent impactsNC DEPARTMENT OF TRANSPORTATIONDIVISION OF HIGHWAYS5-6-2014 HandExisting Existing Permanent Temp. Excavation Mechanized Clearing Permanent Temp. Channel Channel Natural SiteStationStructureFill In Fill In in Clearing in SW SW Impacts Impacts StreamNo.(From/To)Size / TypeWetlands Wetlands Wetlands in Wetlands Wetlands impacts impacts Permanent Temp. Design(ac) (ac) (ac) (ac) (ac) (ac) (ac) (ft) (ft) (ft)20A 618+68-619+57 -L- RROAD FILL< 0.01 < 0.01 551820B 618+68-619+57 -L- RROAD FILL< 0.01< 0.01< 0.01 < 0.01 571121 619+82-622+86 -L- RROAD FILL0.17< 0.01< 0.01 < 0.01 491722 624+24 -L- RROAD FILL< 0.01< 0.01< 0.016123A 628+44-628+98 -L-ROAD FILL< 0.011923B 628+44-628+98 -L-ROAD FILL< 0.01 < 0.01 661524 641+42-642+18-L- RROAD FILL< 0.010.01< 0.01 < 0.01 221025 650+46-652+40-L- RROAD FILL0.110.05< 0.011226 659+63-661+42 -L-CULVERT0.03 0.01 7522STREAMBANK STABILIZATION< 0.01 < 0.01 332627 651+61-653+98 -L- RROAD FILL0.04< 0.010.0113428 652+08-653+11-L- LROAD FILL< 0.010.0229 653+75-654+35-L- LCHANNEL0.016930 17+86-2085-Y32- RROAD FILL0.040.0631 667+52-670+07-L- RROAD FILL0.06< 0.0132 676+39-676+92-L- RROAD FILL0.02< 0.01< 0.01 < 0.01 2519SUBTOTALS*:0.46< 0.01 0.150.08 0.03 677 138SUBTOTALS FROM PAGE 1*:0.55< 0.01 0.150.380.062396375TOTALS*:1.01< 0.01 0.300.460.093073513*Rounded totals are sum of actual impactsNOTES:ATN Revised 3/12/13SHEET 52OF 52 WETLAND PERMIT IMPACT SUMMARYWETLAND IMPACTSSURFACE WATER IMPACTSR-2915D ASHE COUNTYON US 221 FROM SOUTH OF NC 194TO US 221 BYPASS* SITE 21 TOTAL TAKE OF WETLAND = 0.18 AcreNC DEPARTMENT OF TRANSPORTATIONDIVISION OF HIGHWAYS5-6-2014