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HomeMy WebLinkAbout20030599 Ver 2_Monitoring Report_20140930BOWLIN -PEAK CREEK MITIGATION SITE EEP ID 92606 USACE ACTION ID 200702632 DWQ 401 # 030599 2014 CLOSEOUT REPORT STREAM PROJECT Coordinates 81 17 58.47 W 36 23 17.77 N Milestone Date (Month -Year) Project Setting & Classifications Project Instituted March 2000 County Ashe Restoration Plan December 2002 General Location West Jefferson Final Design — Construction Plans December 2002 Basin New NCDWQ 401 Certification (initial) May 2003 Physiographic Region Mountain (Blue Ridge Pr.) Interagency Transfer May 2006 Ecoregion New River Plateau NCDWQ 401 Certification (final) August 2007 USGS Hydro Unit 05050001020050 USACE 404 Permit(final) August 2007 NCDWQ Sub -basin 05 -07 -01 Construction Completed December 2007 Wetland Classification NA As Built Survey February 2008 Thermal Regime Cold Monitoring Year 1 September 2008 Trout Water Yes Monitoring Year 2 June 2009 Project Performers Monitoring Year 3 June 2010 Beaver Dam Removal April 2011 Source Agency DOT Live Stakes Installed April Transferred EEP (2006) Fence repair at stream ford crossing May 2011 Designer NCWRC Monitoring Year 4 June 2011 Monitoring Firm(s) NCWRC Bank reshaping / live staking April 2012 Channel Remediation NCWRC Beaver Dam Removal May 2012 Plant Remediation NCWRC Monitoring Year 5 June 2012 Property Interest Holder EEP Containerized planting of bare areas April 2014 LOI No Live Staking April 2014 Long Term Steward State of North Carolina Fence repair & natural debris cleanup April 2014 Boundary signage updated August 2014 Close Out Submittal September 2014 Note - Invasives spraying occurred annually MY throw MY5 Project Setting & Background: Setting - Peak Creek, located in the Blue Ridge Province of the Appalachian Mountains, is a tributary to the South Fork New River in Ashe County, North Carolina. The watershed upstream of the project site has an area of approximately 4.4 square miles. The project is 4.1 miles southwest of Laurel Springs, 12.2 miles southeast of Jefferson, and 30.8 miles northwest of Wilkesboro. Land uses within the watershed consist mostly of rural farms containing pastures and forested wood lots. The less steep valley floors are used to raise crops and graze livestock. While a significant portion of the watershed remains in second growth forest, some Christmas tree farms have been developed. Project Condition and Need- Historic dredging of the stream channel, gravel mining, and poor riparian zone management on the Bowlin -Peak Creek site resulted in stream bank instability at numerous locations, adverse water quality impacts through increased sedimentation, and degraded aquatic habitat. Stream work intended to address project goals included installing root wads, rock cross vanes, and rock vanes to increase fish habitat diversity, stabilizing, resloping, and revegetating eroding stream banks to make the banks more resistant to erosion and flooding, and eradicating invasive exotic plant species. In addition to the stream work, agricultural best management practices were implemented with assistance from The New River (Ashe County) Soil and Water Conservation District. An existing stream ford was improved, the easement was fenced to exclude livestock, and an alternative watering system for livestock was installed. The site was monitored for five years following EEP and USACE monitoring guidelines. Mitigation and Permitting Background - The Peak Creek - Bowlin site was presented to the US 421 mitigation review team as a potential mitigation site in 2000; in 2002 the landowners agreed to the proposed conservation easement boundary. The pre- construction notification and the Peak Creek site mitigation plan were submitted to the USACE and NCDWQ in May 2003. The plan was approved by NCDWQ (Certification number 030599) in May 2003. No comments were received from the USAGE; therefore it was assumed that the project was approved under the general permit conditions. While the conservation easement survey was completed on April 2003, final closing was delayed until fall 2006 due to problems obtaining valid appraisals. The NCDWQ permit was reissued in August 2006. In attempting to renew the USACE permit, it was determined that the original permit had expired, negating the NCDWQ August 2006 permit and requiring new permits to be obtained. In 2006, responsibility for this site was transferred from NCDOT to the EEP. Under a new memorandum of agreement and interagency contract, EEP tasked the NCWRC to complete this project. New permits were then obtained.for Section 404 (Action ID No. 200702632; 11 Aug 2007) and Section 401 (Project number 030599; 20 Aug 2007). It is important to note the easement widths for parts of this project are smaller than currently required by mitigation guidelines because this project originated using policies from 1999, and the easement survey was developed and produced by April 2003. Additionally, 1,003 if of the project's 2,710 if stream is protected and fenced with a conservation easement on only one side of the stream bank (no credit being sought for this section). Project Goals and Objectives: The project goals as originally stated were to improve aquatic habitat and riparian area vegetation and to reestablish channel stability. The objectives of the Bowlin -Peak Creek enhancement project were as follows: • Increase fish habitat diversity by installing root wads, rock cross vanes, and rock vanes; • Stabilize, slope and vegetate eroding stream banks to make the banks more resistant to erosion and flooding; • Eradicate invasive exotic species such as multiflora rose; • Construct a stable stream crossing at the existing ford location; • Exclude livestock from the riparian zone by installing exclusionary fencing and providing an alternate drinking water source; • Plant native trees, shrubs, and ground cover on all disturbed banks and along the channel to provide long -term bank stability, stream shading, and cover and food for wildlife; and • Provide long -term protection of the stream and riparian corridor by the purchase of a permanent conservation easement. Project Success Criteria'': Measurement Performance Standard Success Criteria Met 1.Photo Reference Sites No significant aggradation, Yes (as determined following (longitudinal photos, lateral degradation or erosion interagency transfer) photos) Const. Mit. 2.Channel Stability(Cross- sections, Minimal evidence of instability Yes longitudinal profiles, pebble (down- cutting, deposition, Units counts) erosion, decrease in particle size) App. 3.Vegetative Cover (Shading, Water and air temperature should Yes (shading only; temperatures Water temperature, Temperature decrease, and shading should not taken) stability) increase over time 4.Plant Survival (Survival Plots, >75% coverage in photo plots Yes Stake Counts, Tree Counts ) z >80% survival of stakes, 4/11L WMU Peak Creek >80% survival of bare rooted trees Overall Success Met (Yes/No): Yes 'Source: Stream Bank Stabilization and Habitat Enhancement Plan, NCWRC, December 2002. ?Overall success or failure will be based on success in 3 of the 4 criteria. 3Significance or subjective determinations of success will be determined by a simple majority or consensus decision of the Mitigation Review Team. Asset Table and Component Summation Project Pre- Non - riparian Total Wetland As- Creditable LF or AC (WMU) Mitigation Component/ Const. Mit. Watershed Built Component Difference Mitigation Units Segment (lf/ac) App. Acreage (lf/ac) (lf/ac) (reason) Ratio (SMU/ WMU Peak Creek Reach 1 1707 E -I 2816 1773 1773 - 1.5 to 1 1182 Peak Creek One sided Reach 2 1003 E -1 - 1003 0 easement 1.5 to 1 0 TOTALS Stream Mitigation Units Riparian Non - riparian Total Wetland (SMU) Wetland Units Wetland Units (WMU) 1182 0 0 0 PROJECT MAPS -73 Ile* Ir Legend New river basin hydrology Conservation Easement lk �9 K Project Assets Peak Creek - Bowli n Site Ashe County EEP ID 92606 r - 74),--7"I?VIPM7,w9 nmmmmE���� Feet 0 85 170 340 Monlb.ftg Pin Locations -Peak Creek Was Saclions Fsalere latlIdNosc 1DIB Lmgitu (M oac Degrees Lena Pm --(IQ Ckc 1Dep LorpiluderyV decimal oe­s lepi 14n PaaN Croak 36.'i859186165 812%SY342d] st bM ips PMIa 06.3686tW520 01.2>at20tRde MPaek Greek 0.5 0130td6et6,'i0 xs -1 repi 3B.]N89@➢38 81.2W99121n E V Pidn 18a[aeeire axim�oa�aas la eryVl Decimal asaiaes ss- 21epiR 88.aan281368 81.288fi9 a. ya1 eri2in %3afil' 9]8899 81.iB9Nk12806 - ' 1' .. ' ._ _. xs2 MiR PWI 38.36]x8805]8 81.2N5]d318] ya2 ariAn 38.38]53Rt130 81.29a] /69a - 2 PIR 38.36]300d5M 81895 ?E10M vPS erlBin *.B.�p8181512 8t.3Sp94iA9G6 " � ° � xs31 iR 36.36]�]8W] 61.2820555@ Photo Polms 6aalaCalW oecimal0.®eas Lo�lWarwawimal oagna., ea0rm / - � C 3 aM IR Pwl 3i38]Ye29YvG 81.2888908392 pp ]6.9n832820M et:29B990?8d29 290° S repipa 38.38149)9928 B1 ]�591aA19 PA -2 ?53855�2E2 St 201R55]1d9 Zx0'. 915° _�� xaJ lap ips 36.3C�JJOJ835 01,2'Ad9Yin3 PP3 8,_+86€68.#319 8T:3:R9900T850 ail° xSJ bM IR 18111¢ %.06011,2B3i1 01,21�det6C9t 114 W307 FW1299A 8F,28682550820 8 %° r - aJreplR 36- 388]9[e� BI 29931'Ai]9 PPS 9a.38]d]090'1fll ex.]084 :e -s lepiR ae.z®e4rs11a al,xmAa9as9 PP.s x,3s]dmasat et,z�ndanae9 ta• _. ... X5-4 MS -1 xs9 akrlR Pmt 39386aet30n Y041 ]i PP -] M.38806T3fIT20 89.2BB06droe30 320' XS -2? 81 Yfa2 s SrepiR 363889Hfi'M1JS.i 61 Sa11501P19 PPA Ti�83' 0 St 30923]5]0 �9° -.. s6lapip 8.3W9839(45 61.3WCW3.RS PP5 8.3880ZFA3Ca 85.30W34l1?90 31 D° xs�6 bM IR FSIRa 8.6W�4819118 01,2898)38Sde RP.tO 7Q.51803125`.�990 eF.28f99T.Cd83a 20' - .. c Y do mPlps ae.aa9a]a -t9s] a1 a�e.ea2ax PP n sa.3e9a13�m as zesaaee•ss9 xo• z/ • � _..'.�� .� , � xa ]IapiR zs.eeolzwdae e1,3m4asaaz PP -tz 3c,3avzslowea s3,6w4e3onlw za9° - �Z � -�� xa7WIFs 3fi.3801404ns 81.3005544830 PP -13 Y2901150]550 8t.3fA89]04420 330' _ - b ° // _ a Wi 8.3901NB048 01.39a596166d PP�9d 36.3901?06]]90 04.30198]19 0 30° - BencMlml[ Iarhu�lNj axime aaPrees l.manlnelwl D3c'mW CYgreas PP -15 8.368i32W810 01.3012538W00 a)'. er. %:OaW8e- 81,ZWleaa]a1 PROBLEM AREA IDENTVFIE 11� ' Stream Crossin .3 _ Legend r Thalweg (MY5) ® Veg. Problem Area Thalweg (AS- BUILT) Stream Problem Area Edge of Water Photo Paint - - -- Bankfull �i PP- Location Terrace Crest - - - - - Minor Tributary or Ditch Rock J -Hook Permanent Cross Section Conservation Easement Boundary Log/Rock Weir -o-o- Fence Line Log Vane Watering System Line or Digger Log Y Waterer - - Rock Vane Veg. Plot Wetiund Area Root Wad &&system 120 0 120 240 364 ^ Crest Gauge ' Scale: 1 a = 120' Rebar Pin Set p� Rack Sill NORTH CAROLINA WILDLIFE RESOURCES COMMISSION Bowlin - Peak Creek Stream Enhancement Project SURVEYED BY: JCF, MDF DATE 04112 SHEET WATERSHED ENHANCEMENT GROUP "she County EEP Project Number 92606 DRAWN BY: JCF JDATE 01/13 REVISION: DATE' PO BOX 387 33527154 FAX E MY5 Overall Plan View OF 4 ELKIN, NORTH CAROLINA 28627 3366 .527.1548 8 FAX CAD FILE D' BQWIin MY5 Plan Monitoring Locations and Features USGS 24K N r� Peak Creek Bowlin Site A e�e � Ashe County ✓I1V EEP ID 92606 ' - ME a WaD `° ., - ".. \ WaD r 1^p aF w aF ME ` r. F vial vvai ,{ _ LTD CtE". Ind \IYaE: �' EvE _ EvE : , Fn WaF -�TsD WaE Ev - ME a TsD„ `` 28'� �E \\T34�` gs Bare Site -Ut Peak Creek {927oaD Wa LM J i '.WaE - _ FnDW%jt �WaE WF �WaE C T3C5 EvE . • T " 1��-' _ WE\ CID - EF _ WE CaF f, - - EvE fir.. 44 CfE _- fi`. `.. WaE. i '.%� r _FnD WIE x i WaD Tsi7 13fYaF WaE�' Peak Creek Bowlin r rr ME _ � WaE J Legend a �a f �. " Tsa r r r N © IMS._IC_C- servalion_Easemenis 2. '• TSD I} �� E WaE Fn❑ WaE Ts� Tusquitee Loam Sto 15?u slopes TI'D To Toxa roam — Tag,+ ME TSD r "..•' ....� Soils Peak Creek Bowlin Site Ashe County EEP ID 92606 _ FTI A:�dd: ial Plan[nq 2�1 Ell Sheet dditpnal lan � - � WWI 1/4 ­­M EL= n9. YiSPkm k!+a ' ...`� R r5 — _— _YmF•q '.{fT—f lu,_utiui�Ani r , \ snit ya w2 �°4A Y W Yid /'~ WcEYrtnp T»�dm Llim � �aR9�Y �^Y NDRTH CAR01 INA4' itM IFF RF SCkRC,FS 1011111SLIV NI Remediation Actions N -Y - - SHEET P AT. RShF6 NHAN E6IFNT GRt7LIF Peak Creek Bowli n Site j Ashe County EEP ID92608 n111I +«�Y +.� +Y�wa�, a_ d Cross - section 1, Riffle Bowfin -Peak Creek/Project N—I er:92606 999 998 997 m b 996 995 p m m I 994 993 992 0 10 20 30 40 50 60 Distance (feet) _My0.091 -08 _Myl, 10 Sep 08 _NffZ20May O9 +M13, 12 Apr 10 —My4 14 Apr l l —MyS, 09Apr 12 ■ Ban6fun Elecati� 4 Waar S�face ;7 Cm ss- section End Pin Cross-section 3, Pool Bma6n -Peak Creek/Praject Number: 92606 996 995 994 Jy 992 991 C 990 w 989 988 987 0 10 20 30 40 50 60 70 80 90 100 110 Distance (feet) _MY0, 09 fan 08 —MYt IOSep08 +IV1Y220May09 —MY3, 12AFe10 — MY414Aprll —MY5, 9Apx 12 ■ ♦ Water Su-face : Cross-se fta End Pin Cross Sections Cross-sectiaa 2, Pool Bowfin -Peak CreeklProject Nuxaber:92606 997 996 995 994 993 m 992 C 991 D 990 .a 989 988 987 0 l0 20 30 40 50 60 Mt.— (feet) —MY"0, 091-08 —Illy 1: 10 Sep 08 —NffZ 20 May09 —MY 3_ 12 Apr 10 _Nry4, 14 AkF l l —MY5, 9 Apr12 CROSS SECTIONS ■ Ha ilfu Eleca4on ♦ Water Surface 7 Cxoss- section EndPn Crass - section 4. Riffle Bowfin -Peak CreeklProject Number: 92606 994 993 992 „ 991 R m 990 c 989 w 988 987 986 0 10 _MYO, 091an 09. _MY3, 12 Apr 10 ■ Baxrifi'uIl Eleva4cm 20 30 40 Distance (feet) —Nfy 1.10 sep OR —MY4, 14 Apr 11 A Water Sra£ace 50 60 _MY 2 20 May 09 —MY5, 9 Apr 12 C Cxoss- sectienEnd Pin 70 Cross - section 5, Pool Bosnia -Peak CreekT,.ject Numb-:92606 999 989 988 987 a 986 `m m 985 .p 984 a .: 983 w 982 981 980 0 10 20 30 40 50 60 Distant. (feet) _MY 0. 09 J_ 08. t11ly1. 105ep 08 _MY 2, 20 May 09 —MS'3. 12.Ats 10 — ,4IY4, 14 Apr 11 —MYS, 9.4p, 12 ■ Barffull Elecatian 1 Water Sixfw, H Cross-sectian End Ptin Cmss-secti.n 7, Riffle Boryrlia -Peak Creek/Proje t Number: 92606 984 983 982 2; 981 980 'A a 979 978 977 10 20 0 —MYO. 091an08 — MY3.12 Ag 2010, ■ Bmldull ElevatLm 30 40 50 Distance (feet) —MY 1, 10 Sep 08 _ n1) 4, 14 Apr 11 Water Sum ce. 60 79 —MY 1 20 May 09 —MY 5, 9 Apr 12 H Craes-section End Pin 80 988 987 986 985 m 984 C p 983 0 w 982 981 980 0 Cross -section li, Riffle Bolvliu -Peak CreeklProject Number:92606 IO 20 30 40 50 6C 70 86 Distance (feet) — IYty0, 09 J_ 09 —MY I, IO SeP08 AMY 120 May 09 —MY37 I2.k7 10 — rfy4, 14 Apr 11 —MY5,9 Apr 12 ■ 13 nIZ.UElec-atian ♦ Water 8-f.- Crass - section End Pin Cross Section Data Summary Morphology and Hydraulic Monitoring Summary (Dimensional Parameters - Cross - section) SowEin -Peals CreeklProject Nnmher: 92606 Cross Section 1 at Station 3+56 ( Riffie) Cross S ectian 2 at Station 6+39 (Pool) Cross Section 3 at Station 7 +62 (Pool) Cross See:tioo 4 at Station 10+43 (R.iffie) Di-i- and Substrate _TYc TYl TY2 7Y3 ?.'Tim. .TY= '.7Y6 '`Y_ 'TY2 13 Y- -Y� -Y` kTl1 TY2 '1 -'+ _1_ NTY= _1: :�rTY _12 'TY3 _11Y-1 NMI Based on fixed baseline bank full elevation Bankfixll W[ dth(ft) 34.9 33.4 i.2 . 35:6 34.2 23.5 15.7 15.4 IS.S 1S.S i9.6 18.6 14.9 212 19.3 1 9.9 22.4 25.5 25.4 25.8 25.5 23.5 24.4 Floodproae Width (ft) 483 57..1 57.9 55.8 47.7 49.0 159.7 159.7 159.7 159.7 159.7 159.7 218.4 218.4 218.4 215..4 215..4 218.4 121.7 1132 124.4 113.8 1039 126.2 Bankfull Crosssectional A- (ft-) 353 39.5 40.6 43.1 33.9 33.5 32.4 33.5 33 7 36..7 52.2 52.6 48.5 50.7 52..8 55.8 54.6 62.6 48.5 46.9 48.0 44.4 42.8 44.2 Bankf.11 Mean Depth (ft) 10 12 12 12 10 13 1.7 1_9 1_S 20 27 29 24 24 2.7 29 2.4 2.7 1.9 1.5. 19 17 1.3 1.9 Bankfull Max Depth (ft) 2.5 27 2.7 2 9. 24 2.5 13 32 36 3.7 5 7 53 39 4.1 4.1 40 39 42 2.9 2.7 2 :7 2.9 2:5 2.9 Bank -fLiH Width' Depth Rado 34.6 1 28.3 28.7 1 28.4 34.5 1 16.4 10.8 1 10.1 10.5 9.6 7.0 6.2 8.1 S.S 7.1 7.0 9.2 S_7 137 138 13.9 14.6 14.0 13.4 Bankfull Entreneh..,e.rt Ratio 1.4 1.7 1.7' 1.7 1.4 2.1 8.6 9.7 8.5 SS 8.4 S.9 11.0 10.3 11.3 11.1 9.9 9.4 4.7 4.5 4.8 4.5 4.3 5.2 Bankfull Bank Height Ratio 2.1 2.6 2..0 1.9 2.:6 2.2 i.9 1.9 1.8 1.-? 1. _ 1.5 1.2 1 1 i.1 1.1 1 1 _ _ _ ' ' 1.2. 1.1 1.2 Based on curr- Odevelopiug baulfull feature 111-1 MMINIMN"�' Bankdull Width (ft) 2.3.2. 31.1 35.3 27.9 2'•.5 29.4 Floodproae Width (ft) 166.8 1859 176.6 1 -3A 156.0 193.7 Bank-full Cress- sectional Area (ft'') 55.0 60.6 59.3 57.4 50 -S 553 Bank -full Mean Depth (ft) 2.0 2.0 1.1 1.9 19 1.9 Bankfull ".•iax Depth (ft) 3.0 32 30.:8 32 2.8 32 Bank-full Width'Depth Ratio 14.5 139 1 21.0 1 15.6 149 1 15.6 Bank-full Entrenchment Ratio 59 6.0 5.0 6.0 5_S 63 Bank -full Bank Heigh[ Ratio 1.4 1.0 1.0 1.0 1.0 1.0 Cross- s.xtionaS ?.rea behs eea gad pins (ft") 141.4 1469 1489 151.5 1430 150.0 113.3 115.5 116.0 118._0 134.5 130.6 153.3 163.3 162.7 1 165.3 163.0 169..7 79.9 7S-3 78.2 792 767 81.7 D30 38.5 399 57.7 32_S 242 374 49.3 35.0 74.1 40.0 31.1 32.0 20.7 19.3 9.9 1 27.3 4S.S 43.7 34.5 36.0 374 39.7 40.0 31..1 Cross Section 5 at Station 14 +80 (Pool) Cross Section 6 at Station 16+80 (Riffle) Cross Section 7 at Statism 20+97 (Riffle) Dimension and Substrate MYO My 1. 14•lY_'- '_ TY3 7NSY4 I'M "_t•fY6 _lfYl \•fig. IAY3 '_'.4Y4 MYS A•fY0 1.•fYl MY-1 11.fY3 iklY4 h'fY5 Based an filed baseline b -kfi.11 elevation Bankfull Width (ft) 26.4 �" 5 21.i 26.9 2.1.1 20.4 21.4 2.5.9 27.0 269 29.2 2.5.3 20.6 � 6 26.8 29.7 20.7 26.7 Floodproae Width (ft) 1719 171.9 171.9 171.9 171.9 171.9 86.7 33.0 39.3 94.5 120.3 103.0 70.0 ;0.0 70.0 70.0 Bankiull Crass- ss:.ticmal Area (ft') 45.3 45.1 493 49.6 49.9 43.0 332 34.8 36.1 39.0 42.1 36.7 40 8 41.4 44.6 41.5 -43.2 472 Batik-full Mean Depth (ft) 2.4 2.3 2.3 2.4 2.4 2.1 1.3 1.4 1..3 1.5 1.4 1.3 2.0 2.0 2.1 2.0 2.1 23 Bank -full Max Depth (ft) 4.8 4.7 4.6 4.4 4.7 42 27 2.7 2.7 2.7 3.0 29 2.7 2.5 2.8 2.6 2.9 -. 2.8 Banbfull'4b'idtb.Depth Ratio 5.6 S.S 9.1 3.5 9.0 9.7 19.6 192 20.2 18.6 203 21.9 10.4 102 9.7 10.4 9.7 9..1 Bankfull Ent-chment Ratio SA 8.4 9_1 9.2 8.1 8.4 3.4 3.4 3.3 3.5 41 3_9 3.4 3.4 3.4 3.4 3.4 3.4 Bankfull Bank Hzht Ratio 1.1 1 1.0 1.1 1 1.0 1.4 1 1.1 1.3 1 1.4 1 13 1.3 1 1.2 1.3 1 1.9 2.0 1 1.3 1.9 1 1.9 1.7' Based on cnrrent)developing banlcioll feature Bank-full Width (ft) 36.3 39.6 33.5 41.6 46.4 37.9 Floodproae ■Vidth (ft) 119.7 121.0 1203 1203 . 1203 119.8 Bank -full Crass- sectional- Ax -(ft") 60.4 69.2 652 663 652 63.5 Bankfull Mean Depth (ft) 1.6 1. S 1.7 1.6 1.6 17 Bankfull \.Iax Depth (ft) 3.5 3.7 35 3.5 3.7 37 Bankfull Width Depth I7:atio 22_5 22_7 22.5 26.0 2.4.9 22.6 Bankfull Entrcluurt patio 33 3.1 3.1 2.9 3.0 32 Bankfull Bank Height Ratio 1.0 1.0 1.0 1.0 1.0 1.0 Cross - .sectional ?area betneea gad pies (ff�) 124.0 122.5 127.6 12.5 125.0 1 169 1225 31.1 1203 . 30.3 176A 42.4 177.5 60.0 178.7 50.9 1799 31.1 1752 52.9 172.0 4.9 1 141 _d 1 42.4 1 102.6 1 34.4 1 102.0 1 48.8 101.0 36.4 102.4 46.9 101.3 56.9 D50 67.1 54.5 Verification of Bankfull Events Date of Data Collection Date of Occurrence Method Photograph Number 05- Mar -2008 3,780 CFS at S. Fork New River USGS gage 27- Aug -2008 3,590 CFS at S. Fork New River USGS gage 08- Sep -2008 Unknown 2.95 ft on Crest gage 11- May -2009 Unknown 2.86 It on Crest gage 27- May -2009 3,240 CFS at S. Fork New River USGS gage 17-Jan-2010 5,180 CFS at S. Fork New River USGS gage 25- Jan -2010 4,650 CFS at S. Fork New River USGS gage 22- Mar -2010 3,870 CFS at S. Fork New River USGS gage 12- Apr -2010 Unknown Rack line 0.2 ft above bankful bench elevation BF 1 12- Apr -2010 Unknown 2.91 ft on Crest gage 1- Dec -2010 4070 CFS at S. Fork New River USGS gage 3- Feb -2011 Unknown Rack line above bankM bench BF2, BF3 6- Mar -2011 3,730 CFS at S. Fork New River USGS gage 7- Mar -2011 3,730 CFS at S. Fork New River USGS gage 11- Apr -2011 Unknown 4.3 ft on Crest gage 14- Apr -2011 Unknown Rack line 3.2 ft above stream channel bottom 16- Apr -2011 7,590 CFS at S. Fork New River USGS gage 16- Apr -2011 Landowner indicated a 5 in. rain event occurred 17- Apr -2011 6,190 CFS at S. Fork New River USGS gage- 19-Apr-2011 Unknown 3.2 ft on Crest gage 26- May -2011 Unknown 3.2 ft on Crest gage 6- Sep -2011 3,140 CFS at S. Fork New River USGS gage 7- Sep -2011 3,160 CFS at S. Fork New River USGS gage 25- Sep -2011 2,950 CFS at S. Fork New River USGS gage 29- Nov -2011 5,120 CFS at S. Fork New River USGS gage 7- Dec -2011 2,840 CFS at S. Fork New River USGS gage 9- Apr -2012 Unknown Rack line above bankfull bench BF4 Cross - section 1 .,Now 1 50 100 —Pre- construction Apr -02 MY2 Thalweg May -09 MY5 Thalweg Apr -12 • MY5 Top of Bank Apr -12 1000 995 w 990 0 985 150 200 250 300 Channel Distance (feet) —MYO Thalweg Jan -08 —MY3 Thalweg Apr -10 --*--MY5 Water Surface Apr -12 X Grade Control Structures Cross - section 2 Cross - section 3 350 400 450 500 MY1 Thalweg Sep -08 —*--MY4 Thalweg May -11 MY5 Bankfull Apr -12 W 500 550 600 650 700 750 800 850 900 950 1000 Channel Distance (feet) —Pre- construction Apr -02 —MYO Thalweg Jan-08 MY1 Thalweg Sep -08 MY2 Thalweg May -09 —MY3 Thalweg Apr -10 —*---MY4 Thalweg May -11 MY5 Thalweg Apr -12 --m--MY5 Water Surface Apr -12 ♦ MY5 Bankfull Apr -12 40 MY5 Top of Bank Apr -12 X Grade Control Structures MEN, No =MR on W 500 550 600 650 700 750 800 850 900 950 1000 Channel Distance (feet) —Pre- construction Apr -02 —MYO Thalweg Jan-08 MY1 Thalweg Sep -08 MY2 Thalweg May -09 —MY3 Thalweg Apr -10 —*---MY4 Thalweg May -11 MY5 Thalweg Apr -12 --m--MY5 Water Surface Apr -12 ♦ MY5 Bankfull Apr -12 40 MY5 Top of Bank Apr -12 X Grade Control Structures 995 990 985 0 0 W 980 990 985 w 980 0 975 Cross - section 4 Cross - section 5 1000 1050 1100 —Pre- construction Apr -02 — MY2 Thalweg May -09 MY5 Thalweg Apr -12 • MY5 Top of Bank Apr -12 W 1500 1550 1600 —Pre- construction Apr -02 MY2 Thalweg May -09 MY5 Thalweg Apr -12 • MY5 Top of Bank Apr -12 1150 1200 1250 1300 1350 1400 1450 1500 Channel Distance (feet) —MYO Thalweg Jan -08 MY1 Thalweg Sep -08 —MY3 Thalweg Apr -10 — *— MY4 Thalweg May -11 --m—MY5 Water Surface Apr -12 ♦ MY5 Bankfull Apr -12 X Grade Control Structures Cross - section 6 • 1650 1700 1750 1800 Channel Distance (feet) —MYO Thalweg Jan -08 —MY3 Thalweg Apr -10 --a— MY5 Water Surface Apr -12 X Grade Control Structures ►1 1850 1900 1950 MY1 Thalweg Sep -08 —a­MY4 Thalweg May -11 MY5 Bankfull Apr -12 2000 ■ now, *1 i 1000 1050 1100 —Pre- construction Apr -02 — MY2 Thalweg May -09 MY5 Thalweg Apr -12 • MY5 Top of Bank Apr -12 W 1500 1550 1600 —Pre- construction Apr -02 MY2 Thalweg May -09 MY5 Thalweg Apr -12 • MY5 Top of Bank Apr -12 1150 1200 1250 1300 1350 1400 1450 1500 Channel Distance (feet) —MYO Thalweg Jan -08 MY1 Thalweg Sep -08 —MY3 Thalweg Apr -10 — *— MY4 Thalweg May -11 --m—MY5 Water Surface Apr -12 ♦ MY5 Bankfull Apr -12 X Grade Control Structures Cross - section 6 • 1650 1700 1750 1800 Channel Distance (feet) —MYO Thalweg Jan -08 —MY3 Thalweg Apr -10 --a— MY5 Water Surface Apr -12 X Grade Control Structures ►1 1850 1900 1950 MY1 Thalweg Sep -08 —a­MY4 Thalweg May -11 MY5 Bankfull Apr -12 2000 985 s. 980 a c� 975 0 w 970 Cross - section 7 2000 2050 2100 2150 2200 2250 2300 2350 2400 2450 2500 Channel Distance (feet) —Pre- construction Apr -02 —MYO Thalweg Jan -08 —MY1 Thalweg Sep -08 MY2 Thalweg May -09 MY3 Thalweg Apr -10 —a---MY4 Thalweg Mayl l MY5 Thalweg Apr -12 tMY5 Water Surface Apr -12 ♦ MY5 Bankfull Apr -12 • MY5 Top of Bank Apr -12 X Grade Control Structures L.12 • 975 s. 970 0 0 w 965 W 2500 2550 2600 2650 2700 2750 2800 2850 2900 2950 3000 Channel Distance (feet) —Pre- construction Apr -02 —MYO Thalweg Jan -08 MY1 Thalweg Sep -08 MY2 Thalweg May -09 —MY3 Thalweg Apr -10 —*--My4 Thalweg May -11 MY5 Thalweg Apr -12 —m--MY5 Water Surface Apr -12 ♦ MY5 Bankfull Apr -12 • MY5 Top of Bank Apr -12 X Grade Control Structures Total and Planted Stems by Plot and Species Bowlin -Peak Creek Plot Data (MY5) Annual Means Scientific Name Common Name Species Type E92606- Elkin -VPl E92606- Elkin -VP2 E92606- Elkin -VP3 MY5 MY4 MY3 MY2 MYl MYO PnoLS P -all T PnoLS P -all T PnoLS P -all T PnoLS P -all T PnoLS P -all T PnoLS P -all T PnoLS P -all T PnoLS P -all T PnoLS P -all T Acer rubrum red maple Tree 1 1 1 3 1 1 4 1 1 4 1 1 3 1 1 2 1 1 4 1 1 3 Acer saccharum sugar maple Shrub Tree 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 Alnus serrulata hazel alder Shrub Tree 48 19 3 70 74 120 80 53 47 Betula nigra river birch Tree 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 3 3 3 Calycan thus floridus eastern sweetshrub Shrub 1 1 2 Carpinus caroliniana American hornbeam Shrub Tree 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Cornus amomum silky dogwood Shrub 2 3 1 3 3 6 3 7 3 4 1 3 31 31 31 4 4 Crataegus hawthorn Shrub Tree 38 38 43 55 59 4 14 Fraxinus pennsylvaniea green ash Tree 1 1 I Ju lans nigra black walnut Tree 1 1 1 1 1 1 2 1 1 2 1 1 11 2 2 2 2 2 2 2 2 2 Lindera benzoin northern spicebush Shrub Tree 1 10 2 2 3 1 1 17 3 3 301 3 31 34 4 4 28 4 4 16 5 5 20 6 6 6 Physocar us o ulifblius common ninebark Shrub 2 29 38 13 2 80 2 41 2 24 2 62 2 31 3 10 Prunus serotina black cherry Shrub Tree 5 1 1 1 5 11 10 1 141 1 5 Prunus serotina var. serotina black cherry Shrub Tree 1 Quercus alba white oak Tree 1 1 2 2 2 2 3 3 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 Quercus rubra northern red oak Tree 1 1 1 1 1 Rhododendron calendulaceum flame azalea Shrub 1 1 2 2 2 1 1 1 3 31 31 3 31 3 31 3 3 3 3 3 3 3 3 3 3 3 Rhododendron catawbiense Catawba rosebay Shrub Tree l l l l 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 Rhododendron maximum great laurel Shrub Tree 1 11 1 1 1 1 1 1 1 1 1 1 11 1 11 11 1 11 1 11 11 1 1 Robinia pseudoacacia black locust Tree I 1 1 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 Salix nigra black willow Tree 1 1 1 1 3 1 1 1 Salix sericea silky willow Shrub Tree 2 21 2 4 2 41 2 5 2 3 2 2 2 2 Sambucus canadensis Common Elderberry Shrub Tree 1 1 1 1 1 2 2 1 1 Sassafras albidum sassafras IShrub Tree I I I I I 1 10 S iraea s irea Shrub 18 18 13 1 7 1 3 Tsugaearoliniana Carolina hemlock Tree I 1 1 I 1 1 I I 1 1 11 1 1 1 1 1 1 1 1 1 1 Vaccinium blueberry Shrub Vine Tree 1 1 1 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Stem count size (areas) size (ACRES) Species count StemsperACRE 3 9 121 15 16 79 9 9 88 27 34 289 27 34 258 28 351 274 29 37 270 32 41 153 35 45 126 1 1 1 3 3 3 3 3 3 0.02 0.02 0.02 0.07 0.07 0.07 1 0.07 0.07 1 0.07 3 61 12 11 12 171 51 51 HI 131 161 231 131 161 231 131 161 221 131 171 241 131 171 231 141 18 22 121.41 364.2 4897 6071 647.51 31971 364.21 364.21 35611 364.21 458.61 38981 364.21 458.61 34801 377.71 472.11 36961 391.21 499.11 36421 431.71 553.11 20641 472.11 6071 1700 EEP Conclusion and Recommendation The Bowlin -Peak Creek site project goals were to improve aquatic habitat, riparian area vegetation, and stream channel stability. This was accomplished by installing root wads, rock cross vanes, and rock vanes to increase aquatic habitat diversity; stabilizing, resloping, and revegetating eroding stream banks to make the banks more resistant to erosion and flooding; eradicating invasive exotic plant species; and implementing a farm management plan to reduce stream impacts from livestock. The visual assessment, geomorphic, and vegetative surveys indicate some minor stream channel adjustments have occurred since construction. At MY5 the majority of features scored above 93% on qualitative visual stability assessment. Beaver activity and multiple greater than bankfull storm events during the winter of 2010 -2011 caused site specific channel adjustments. As expected, the stream channel adjusted slightly since the as -built survey. The seven permanent stream channel cross - sections, four riffles, and three pools indicated the site was relatively stable at MY5. Bankfull benches developed in 4 cross - sections. Only one, cross - section 2 was permanently impacted by an upstream beaver dam in MY4, but remained stable in MY5. Beaver issues have been addressed periodically over the monitoring period, and some of the vegetative loss and spotty bare areas are attributed to beaver. Such areas were container - planted in April 2014. The vegetative criteria have been met, with an average of 364 planted stems per acre and 3,898 total stems per acre, indicating adequate survival, strong recruitment, and overall healthy vegetation. With only small isolated areas of channel bed material aggradation and channel bank instability observed, the Peak Creek mitigation site is meeting all morphometric and riparian vegetation success criteria for the five years of monitoring. EEP recommends that the Site be closed generating 1182 Stream Mitigation Units (SMUs). Contingencies None. Site Photographs Pre- and post - construction views of station 1 +75 to station 2 +48; Apr 2002 and March 2008. Pre- and post - construction views of cross - section 1 at station 3 +56; Apr 2002 and Sep 2007. Pre- and post - construction views of cross - section 3 at station 7 +62; Sep 2002 and Jan 2008. Pre- and post - construction views of cross - section 5 at station 14 +80; Apr 2002 and Mar 2008. Pre- and post - construction views of low water crossing at station 15 +25; Apr 2002 and Mar 2008. Pre- and post - construction views at station 16 +25; Apr 2002 and Mar 2008. Pre- and post - construction views of cross - section 6 at station 20 +90; Mar 2007 and Jan 2008. Pre- and post - construction views of station 21 +50 to 22 +00; Mar 2007 and Mar 2008. Appendix A: Watershed Planning Summary 92606 — WRC Bowlin -Peak Creek Watershed Characteristics Overview The WRC Bowlin -Peak Creek project is located in eastern Ashe County, approximately 10 miles east of Jefferson, in the New River Basin. It is located within HUC 05050001020050, the South Fork New River and tributaries (including Peak Creek) watershed, which is listed as a Targeted Local Watershed (TLW) in the 2009 New River Basin Restoration Priorities (RBRP) plan. Peak Creek flows into the South Fork New River approximately 5.2 miles (27,000 feet) north of the project site. Neither Peak Creek nor the South Fork New River downstream of its confluence are listed on the 2012 North Carolina 303(d) list of impaired waters. [The lower reach of Peak Creek (2.9 miles from Ore Knob Branch to South Fork New River) had previously been listed as impaired in 2010 due to poor benthic ratings, presumed to be the result of toxic /acid drainage from the Ore Knob Mine.] The 57- square mile TLW is asset -rich, with 76 Natural Heritage Element Occurrences (occurrences of rare plants and animals or unique natural communities), 22% HQW and ORW waters, four percent Significant Natural Heritage Areas (SNHA) and 8.3% conserved lands (including New River State Park). Overall land use in the TLW is 30% agricultural, 62% forested (including wetland areas), eight percent developed and 44% of streams are non - forested. The watershed also includes 23 permitted animal operations (2009 RBRP). Major problems noted within this TLW (2009 RBRP) include degraded (non- forest) riparian buffers, agricultural stressors (pasture /grazing, row crops, Christmas tree farms, and livestock access to streams), high nutrient and sediment loads, historic stream channelization and impaired aquatic habitat. Links to Watershed Goals and Objectives The project involved stream and buffer restoration/enhancement along approximately 2,700 linear feet of Peak Creek, including over 4,600 feet of livestock exclusion fencing. The Bowlin Site — Peak Creek Stream Bank Stabilization and Habitat Enhancement Plan (NC Wildlife Resources Commission, 2002) addresses several project - specific stressors, including incised stream channels (historically dredged /straightened), impacted riparian buffers, drained riparian wetland areas, degraded in- stream habitat, unstable stream crossings /fords and several areas of eroding stream banks. The project contributes to the following goals and objectives: - Increasing fish habitat and in- stream habitat diversity by installing root wads, rock cross weirs and rock vanes; - Stabilizing (sloping, vegetating and installing structures) over 500 feet of eroding stream banks; - Constructing a stable stream crossing at one existing ford site; - Excluding livestock from over 2,000 linear feet of stream (and riparian buffer) through fencing and development of alternate water sources; - Planting native trees, shrubs and herbaceous ground cover on all disturbed banks and along the channel to provide long -term bank stability, stream shading and wildlife habitat; - Improving water quality in Peak Creek by reducing sediment and nutrient inputs, through increased filtration/removal of these pollutants in the restored riparian buffer and through stabilization of degraded channels and stream banks. In combination with the additional watershed projects in the TLW (noted below), this project should help improve water quality and aquatic habitat, including Natural Heritage Element Occurrences, within Peak Creek and downstream waters. Watershed Summary There is one other EEP mitigation project within this HU: 92704 - UT to Peak Creek (Bare), comprising 2,183 linear feet of stream restoration/enhancement. There is one agricultural BMP site in the watershed (NC Soil and Water Conservation Division, 2014), a stream bank stabilization project funded through the Community Conservation Assistance Program (CCAP). A NC DWR 319 grant has been used to treat acid mine drainage from the Ore Knob Mine in the watershed. There are also four projects funded by the NC Clean Water Management Program (CWMTF) in the watershed, including three riparian buffer acquisition sites and one stream enhancement project (on Potter Branch) completed by the National Committee for the New River (NCNR) River Builder Program. This NCNR program assists private landowners with stream bank stabilization and buffer enhancement /protection along eroding stream reaches. W€iC Bowlin - Peak Creek (New 05050001) rA'i lh?" iil APPENDIX B — Land Ownership and Protection SITE PROTECTION INSTRUMENT The land required for the construction, management, and stewardship of this mitigation project includes the following parcel: Grantor County Site Protection Instrument Deed Book & Page Number Acreage protected Harold B. Bowlin -Peak Conservation Creek Ashe 353/1171 3.07 Easement LONG -TERM MANAGEMENT PLAN Upon approval for close -out by the Interagency Review Team (IRT), the NC DENR Stewardship Program will be responsible for periodic inspection of the site to ensure that restrictions required in the conservation easement are upheld. PDF property documents including the recorded deeds and plats associated with this site are located on the EEP portal at: http: // portal. ncdenr.org /c /document_ library /get file ?p 1 id= 60409 &f6lderld = 11706724 &name= DLFE- 6475 1.pdf APPENDIX C Jurisdictional Determinations and Permits U.S. ,AIi11+IY CORPS OF ENGINEERS Copy WILMINGTON DISTRICT Action 1D. 240702632 County: Ashe USES Quad: Laurel Springs GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION Property Owner 1 Authorized Agent: Harold Bowlin Address: 625 Harold Bowlin Road Laurel Sprint's, NC 28644 Telephone No.. 336 - 992- 40411 Size and location of property (water 60dy, road namelnumber, town, etc.): The project site Is along freak Creek and beeins w'lte re Peak Creek Church Road cusses the creek, continuing for 2,747 linear feet and is idenlifled as the 13o`vlin Stream Mitigsition Site. The prolect site is near Laurel Springs, Ashe Coring+, North Carolina. Peak Creek is v tributary to the South fork of the New River. Description of projects area and activity: This permit verifies impacts to Peak Creek associated with enhance.rnent and restoration activities as described within the nerruit application for 2,747 linear feet of stream channel. The applicant states that this is to satisfy the mitigation requirements associated with impacts from US 421. This project had previously been permitted under Action ID 14970761. Applicable Law: Section 404 (Clean Water ,Act, 33 USC: 1344) ❑ Section 10 (Slivers and Harbors Act, 33 USC 403) Authorization: Regional General Permit Number: Nationwide Permit Number: 27 Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the attached conditions and your submitted plans. Any violation of the attached conditions or deviation from your submitted plans may subject tbt, permittee to a stop work order, a restoration order arWor appropriate legal action. This verification will remain valid until the expiration date identified below unless the nationwide authorization is modified, suspended or revoked. If, prior to the expiration date identified below, the nationwide permit authorization is reissued and/or modified, this verification will remain valid until the expiration date identified below, provided it complies with all requirements of the modified nationwide permit. If the nationwide permit authorization expires or is suspended, revoked. or is modified, such that the activity would no longer comply with the terms and conditions of the nationwide permit, activities which have commenced (i.e., are under construction) or are under contract to commence in reliance upon the nationwide permit, will remain authorized provided the activity is completed within twelve months of the date of the nationwide permit's expiration, modification or revocation, unless discretionary authority has been exercised on a case -lay -case basis to modify, suspend or revoke the authorization. Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification You should contact the NC Division of 'Water Quality (telephone (919) 733 -1786) to determine Section 401 requirements. For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (CAMA.), prior to beginning work you trust contact the N.C. Division ofCoastal Managcmcnt . This Department of the Army verification does not relieve the pernuttee of the responsibility to obtain any other required Federal, State or local approvalsfperrnits. If there are any questions regarding this verification, any of the conditions of the Permit, or the Corps of Engineers regulatory program, please contact Monte Matthews. Permit Conditions: 1. All recommendations in the attached email from the North Carolina Wildlife Resources Commission elated July 16, 2007, are hereby incorporated as special conditions of this permit. 2. All recommendations in the attached etnai I from the U.S. Fish and Wildlife Service dated August 24, 2007, are also incorporates) as special conditions of this permit including a preconstruction survey and fencing of the nearby wetlands. Corps Regulatory Official: Monte Matthews A � .E>� Date: August 11, 2007 Expiration Date of Verification: August 11, 2009 Page I of 2 The Wilmington District is committed to providing the highest level ofsupport to the public. To help us ensure we continue to do so, please complete the attachcd customer Satisfaction Survcy or visit httn;llvrww,saw.usace_ army- rniVWI TLhNDS/ind$x.hrml to complete the survey online. Copy Furnished: Mark Fowikes NC Wildlife Resources Commission PCB Box 387 Elkin, NC 28621 poge2of2 ti144iae -1 F "Rmk9iF- ri1V'P17ii Sr 1 }13mnn MwAk.Sarowe '. DLIU. •,•F i- � r.� y ti LZa�i: vu yl � • rs cc�r rd P$axn I e��uyrrw .. -.— _ - Ldwr 41. lrl Era 174 rrnQ V� • Eawv �' eur � gl M. 2W Affihg Cx DWQ }fit 'wu.. 6 " IL IA a5miciwd GIdh [ I.r ikt 2dM AR'pia.O' AID 4401 'lei wrr i„lmmki� i ircrilllelmilvlt Nir. bL+lork l.nwlk.c* �N L'.AT 1 PO Bjl . 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Sull,lm Di Pee Loo .$ti efummi. w: MonicMafth 's, USACE.lalcio Field Ofdlim DArq Weilalldu;401 TracST=iadum Unit 1D1krQ'E' 5m;i.in Salern Reginnxl fltfio: L W-Q (D:ntrbl Fibs APPENDIX - D Debit Ledger Mitigation Project Name WRC Bowlin -Peak Creek EEP IMS ID 92606 River Basin NEW Cataloging Unit 05050001 Applied Credit Ratios: 1:1 1.5:1 2.5:1 5:1 1:1 3:1 2:1 5:1 1:1 3:1 2:1 5:1 1:1 3:1 2:1 5:1 Information from EEP Debit Ledger dated 08/13/2014 E E v c W E m d c W E r. ` Z S `m g .� ` m o `m w E `m v c W cm_ A Z 4 g a m o N Z K = o a� cc U z = E a v o s Z c W - a10� o d Z a` R d o U z o @ U o U s v A s o c U W z Z (6 oa U Beginning Balance (feet and acres) 1,773.00 Beginning Balance (mitigation credits) 1,182.00 NCDOT Pre -EEP Debits (feet and acres): NCDOT TIP R -0529 1,773.00 EEP Debits feet and acres): DWQ Permits USACE Action IDs Impact Project Name Remaining Balance (feet and acres) 0.00 Remaining Balance (mitigation credits) 0.00 Information from EEP Debit Ledger dated 08/13/2014