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Home My WebLink About20111044 All Versions_Mitigation Information_201203121-40/I-77 Interchange Stream:l�0/I-771nterchange County:lredell 4011ssued:3/12/2012 TIP:13819A Status: In-DevElOpm Stream Setting: Rural 2305 feec Total Length of Projed feec Total Stream Credits 1077 fee� Credits Used for Project Ofeec Excess Credit feet Restoration / Relocation Rest 2305 fee[ Enhancemen Enh fee[ Preservation Pres Rdtio Ratin Rati General Monitoring Plan Comments Monitorinp Plan Sheets � No� Pian Sheets/Aerials Lepible? Yesj Pla�u Overlaid on Aerial7 Other Vepelatlon Monitorinp Revkw Items �'� --No I��ves repor6ed in the moNtoring — re�� '� No Lrnasives observed durinp site Nsit. __ Yes�, PhoW points dea� �',, No Irnaaives tr�eabed durinp arrent � ... i. . � monitorinp year or past7 � Yes�'. Arrows with phMo Ddm's7 � �- � �� No ' Supplemental Wantlnq du�inp turrent - Wetland Midpatlon types -� � or past moniEainq year7 _ NAJ �� ddineated7 Yes� �� a� dear and in all Supplement planting planned for 20ll �-� mltlpatlon/ecosYsbem tYPesT Conservatlan EacemeM ;� Yes, CO1�adon Easement . .. � Encroad�meM Reportedt Not mer.tioned in plan but was noted on site visit, see site visit report. Was this site fenced? STREAM MONITORING REQUIREMENTS Stream Monitoring Success Requirements - Vegetation Plots are required � s —� S�.J✓ �� ! J 2 - At least 320 stems at year 3 and 260 stems at year 5 �`� n ��,�y- '� �� G -Visual Stream Stability Monitoring only Required � N� r� w��( �,� �v W �C � � - Photo Documentation Required F 3 y � q [� 5"� S"""�K Level of Stream MonitorinR Required -�eve� �t � j � �� -� (.� r% v� b u �e. S.� -� w�. S �„ ti,: k K� !d l� w. level of Stream Monitorina Required CL�v� a�4 Se 1/ —J �wL�sS�. Sr,��P �f i 5 lv bc Le�f— Other Monitortng q�l E.!I not su�e why x-sed are being done. 2:1 radio , says macroinvert moni:oring? RequiremenK � I � Plantino nlan cavc unnPr half nlantad IIPPfI VPOIII(l�f 1111 TIIPfP ?f that ic tha ra<a XC TlIOIY(lfl!10 IIM IIPP(IP!'I CIOSf � Switch :o Wetland � 1 Report � �� SwRch to Stream � �- prjnt Structurel Summary ; � w�ll �<o..� r ►�I� � � �� u: {,I,�.j i�,, w� �e r�ti�e� - �� - S��r ► �. o.�. _ D�.._.,1�. tH,,,� �., �2,, 5e r�- o� b�(+-r Year 2017 2018 2Q19 2020 2021 Stems/ Supple. i�ear Plant. 162 VEGETATIQN MONITORING SUIVIM�4RY Commerts Supplemental planting planned for 2016 stream bank - Cephalanthus occidentalis, Cornus ammomum buffer - Lirodendron tuiipifera, Platan4s occidenta�;s, Quercus rubra, Quercus a!ba -.- - � OTHER GE�lER�L iQ�l�lii9llE�E�S 20i4 Under Construction, planted april 20T5 first survey sept 2�716 (snould be 6 mosl. �:1 for 2305, 1077 credits off set, all used for project even though some left over. �I�;� � Swit�h t� �Netlard � - _RE�G!t_A 9 - ,a - - a . S�bitch to StrEarn � Structural Sum�nary � - - -- -- - �� Pflllt T SITE VISIT HISTORY TIP: I-3819A Mitigation Site: I-40/I-77 Interchange DATE COMMENTS 10/6/2016 Site visit with Donna Hood and lames Odonella �KCI Erosion Contro! Inspector). There are a number of issues with this site. To start with it i; slated far development in Phase II of this project. Site was to offset mitigation for another project. 10/6/2016 The site had a lot of mature buffer in the upper half that did not need any amount of planting. It was not clear if areas of the planting plan were planted due to the dense understory on site. 6 buddles of unused trees, larger stock (500-fi00y were found. 10(6/2016 Lower section of site has trees planted. very very small, some dead and struggling. Left buffer to East of Hway 77 has no signage and three CE encroachments were observed, vehicle tracks. 30/6/2016 Upper part of stream is incised with some raw banks some not so raw banks. Minimal planting in this area. Should not have genereted 2:1 credit. 2/ia,/2017 Onsite Stream Mitigation P�an Interchange at I-40 and I-77 in Stat�sville Iredell County T� a-��s� V�SS 1�To. 34132.1.2 �"s'b�ary �S, 2012 � , �2 �is �� ' ,�` � 1.0 BASELINE INFORMATION The I-40/I-77 Inter.chang� Area Improveanent Project (TIP I�o. I-3819) is located n�►rtheast of the --,- - City of Sta�esville in Iredell County, No�th Car�lina �'he groposed 1 S50 acre project study area encompasses the I-40/I-77 interchange and five adjacent intezehanges. Future improv�ments in the southwest quadrant of the project i�cluding a bridge flyover are not part of the current roadway design. � ihe topograghy of the project study ar�a is cl�aract�rized as gently rolling iulls with some steep areas. Genfly rolling topography is found within inter-stream areas, with steeper slopes found along the edges of some stream floodplains. Land use within the project vicinity includes a mixture of commercial, residential, agriculture, industxial, forested, and public/institutional land uses. Perennial streams in the project study area include: 17 UT's to Fourth Creek and 2 iJT's to - - - i�orrison Creek. No vvater supply watershecls, Oufsf:anding Resource Waters (ORW j, High Qualit� V4'aters (H(�'V�, or�Critical Areas �CA) were identified in the project stud� area. All .. : UT's t� �'��*th Cre�k �s�e b��n �si�ecl z stream ��Px_ ef ��-1OQ-20 v��it,� � classifi��?�e� �' .�-. w�ich are fsesh vvat�n prc►te�tefd. for se�o�d�*v rPcreatinn; fishing, a�ua.�c life a.ncluding propagation and sur�-ival and wildliie. 2.0 SITE �ELECTIOI� An nnnamed tribu#ary to Fourth Creek enteas the Northeast quadrant of the interchange through a 48 inch pipe under I-77. The stream then runs pazallel to I-77 for approximately 2355 feet �vithin the potential stream mitiga�on area. 'ine pr;ma.y degrading faciors along this stream are cattle access and lack of a riparian bwffer. j � Within this potential mitigation site, the upstream section of the Ut flows approximately 1050 feet in an incised channel though a steep U-shaped valley. The channel has several neaz vertical banks and azeas of exposed bedro�k. Cattle gain access to the stream at several locations along t�e banks, cal:si�g l�calizsd erosion. Along t.�is s�ction of the �tream, the riparia� area along the rig1�t baulc is densely wooded. The riparian area along the left bank is sparsely wooded with pines and hardwoods. . Along the downstream secti.on of the Ut, the valley flattens as the stream flows approximately 1305 feet in tlae chanriel at a'lo�dplain el.evation. Catt1e have full access to the stream �hpc,ugh this sectian. 'd'he banks of the channel have been �eve�ely degraded b� hoof shear but the riffie-pool s� ucture is stiii Iargely irz�act. The far dow•ns3ream end is sa seve�ely unpacte� �y cattiz ihat �n� channel is difficult to distinguish as it �ows through a wetland dominated by herbaceous ��etatic�n. T�e channel reiorms as it exits i�e wetland and fihe stream mitigati�n site. Dr Gregory J Thorpe �ag� F:�ht If you w�sh,to contest any statement m the attached Certification you must file a petibon for an admmistratrve heanng You may obtai� the petit�on form from the office of Admin�sfrative hear�ngs You must fde the pef�6on wiih the office af AdmirnstratNe Heanngs wi#hm sixty {60} days of receipt of this �otice A pefition ts cflnsidered �:i�� va'h�n ii•is r�c.��d �� tt3e of�sce cf Rcm�r�strati�� t�earing� dursng narmai �iiice hLu� s Tha �ffi :s ofi Adminisuat�ve Heanngs ac�ep�s fiiings Monday tF�rough Friday between the hours oi 8 OOam and-5 OOpm exc�pt for afFi�ial state halidays The origma0 and one (1} copy of the petit�on must k3e filed vinth the O��ce afi P.drrn�is2rat�ve Ftear�ngs i fi�e pe#efion may be faxed prowded �h� ongina! �n� �n� copy of the d�cument �s re�iv�d by #h� Of��c� af A�mmestra:�ve HEarfngs tN�ih�e� f�v� (5) I�usenes� c#a�s follaw�r�g th� faxe� transmisswn i'h� rrr��i�ng address fQr the �ffice vf Aaministrateve He�rmgs ss Qffice of Admirnsirative Hear�ngs 6i14 NEail Service Center Raie�gh fVC 27699 6714 ' - Telephone (y1 �) 733-�698 �acsimife (819} 733 3478 � A cc�py of the pe#ition must also be served on DENR as follouvs Vt�QC !Vo 3909 Ms Mary Penny Thompson General Counsel Department of Enrnronment and Natural Resources 1601 Mail Service Center Raleigh NC 27699 1801 This the 12'h day ofi March 2012 Q:�1l�l�f� QF lN��'�R C�*�!:�L:_�4' � �harles Wakdd �--� Director c 3.0 SITE PROTECTION INSTRUMENT The mitigation site is presently located within or will be located witUin the NCDOT Right-of- Way for the project. It will be managed to prohibit all use inconsistent with its use as mitigation proper_ry, including any activity that would maLerially alter the biological integrity or fi�nctionai and educational value of the site, consistent with the mitigation plan. The site is designated on the plan sheets as a tnitigation area and will placed on the Natural Environment Section's Mitigation GeoDatabase. This database is provided to all NCDOT peisonnel as a record of mitigation sites and their attributes, including location and prohibited acrivities. NCDOT is held by virtue of the permit associated with tlris mitigation site and the associated roadway impacts to protect the site in perpetuity. 4.0 OBJECTIVES The goal of the project is to improve water quality, habitat, and hydrology of the UT to Fourth Creek by removing the degrading factors and pmtecting the system Yiom further impacis. This will be achieved by enhancement of 2305 feet of stream in the northeast quadrant of the project. 5.0 MITIGATION WORK PLAN The mitigation site will be conshvcted in conjuncrion with TIP I-3819A. The site will be purchased fae simple by NCDOT Right-of Way. Livestcck access will be restricted by fencing along the boundary of the site. The buffer of the stream enhancement area will be plantcd with the following bare root seedlings at a density of 680 trees per acre on R fcwt centers: northem red oak, American sycamore, white oak, and yellow poplaz depending on availability. T'he banks of the strEam enhancemant area will be planted with live stakes on 4 foot centers with silky dogwood (Cornus amomum) and buttenbush (Cephalanthus occidentalis) depending on availability. Substitutions if needed will be made with species appropriate for the region and site conditions. 6.0 PERFORMANCE STANDARDS Success for vegetatiun monitoring within the riparian buffer is based on the survival of at least 260 stems of five year old trees at year five. Assessment of channel stability will be based on the lack of significant departure of the channel cross sections from the as-built conditions over the monitoring period. 7.0 MONPfORING REOUIItEMENTS NCDOT will monitor the site yearly for five yeazs. Photo points will be located at equal intervals along the chennel with u downstream views. Vegetation monitoring will consist of \ counts of planted stems within a*nin;n,um our 50 x 50 foot plots zstablished within the �� riparian buffer area ent cross s ons will be set in the channel with two within the Y 1 upper reach and two within . The entire reach wiil be visually inspected for �„ channel stability and vegetation survival. These monitoring activities will be documented in an annual report dishibuted to the regulatory agencies. ' 4`� 8.0 OTHER INFORMATION � N(�T�i1T v►%tll Cottduor a benthic ma�,tU-irtveneb�ats su�--v�y ��iihia the s�ear� enhance�ent �rea prior to construction to dacum�ent the baseline conditians of the site. Benthic surveys will also be conducted each year of the monitoring period. NCDWQ Qual 4 methods of colle.ction will be used� ss F�r theu Standard Operating Yrocedures manua�. All data c�;Iection methods are derived froan techniques used by the NC Departrnent of Environ.ment and Natural Resources - Division of Water Quality. htlp://h2o.enr.state.nc.us/esbBAU�htrnl. Site information fortns including habitat characterization will be completed at each sampiing location. Locations will be recorded with a Trimble GgS unit to indicate the exient of the sample area and locations of existing habitat. Digital photographs will be taken at each sampiing location. PhysicaUChemical param.eters will also be recorded at each site; water temn: rature, dissolve� oxygen (1�C�), con_duc��ty; an�. ph. Samples wiYl be "field�picke�" — the ma��o invePt�brates ;ui�l be removed from �esp�ctive collections and placed in vials of alcohol for transport to a,laboratory where they will be � identified to species level, where appropriate. 9.0 DETERA�IIIVATION OF CREDIT5 NCDOT proposes 2355 ft. of stream enhancement as partial mitigation for permanent stream � - impacts associa#ed with �-3819 at a�2:1 ra�o. An as-built report will be submitted �vithin 50 days .�O � of completion. ��the pr�,jPct. Tix� fual deterznin3ti�n of a.moun�t of mi�i�ation will he b�sed upon _ 3� suc�ess_fzil c��pl�tion c�f +�e ��nit�rino rPquiTPmP�ts �� meeting of fhe p�rrr�rmaiare stand.�rcL. 3 . i.i CREIiIT R�I,E�iSE SC�I)[JL� - C° NCDOT proposes i�rnedia�e, fall release oi the streain enhancement as on-site mitigation for tream impacts associat�d with I-3819�. 10.0 GEOGRAPHIC SERVICE A�tEA The �itigation is proposed for use solel;r as onsite mitigation foT I-3819. I1.0 MAY1vTENANCE PLA�T The mitigation site will be held by NCDOT and placeci on ihe NEU mitigation geodata.base. Once moni��ring is completed and the site is cl�sed ont, it will be placed in the NCDOT S�ewardslip Program for iong term mair.t�nan�e and protectian. If an appropriate third �arty �r�cipi�nt is ideutified i.n the future, then the.transfer of the property will inclu�e a conservatzan e3seLnent or �ther �easuse ta pratect the natural features and mitigation value of the sits in perpetuii�. i2.0 L�NG TE�1VI ADAPTIVE PiFiANAGEMENT lPLAN . The str��.'�rl�aacement a*ea �,�vill be ar.�nag�d by th� N�LC��' accor��n� to the mi�g��.o� pla�.. Eeaver �nanagement will b� instituted. during the mor.itor:ng period. Encroac�ments into the �.rea will be investigated and appropriate measures taken to minimize any negative effects. In the ' event that unforeseen issues arise that affect the mana.gement or mitigation value, a remediation ,_,_ .;�lan. wili ae develcped by N�l��' in coordinati4n with the �T�ter�g�ncy �evievc% Team. �3.0 FIl�TA1tir��L E3SS�T�,I'�TC�� NC�OT is hEld by permit conditions associated with I-3� 19 fo preserc%e the �Yream enizaneem�nt area. 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A 4#u " ,W,x� �+ :=�.d . �k..�:�. l �� f �.R �--�....9 �"��3 �uel�tii f _ A°' _ _ - _ Stream and Wetland M�hgahon Plan New Interchange at I-40 and I-77 �n Statesvdle Iredell County TIP I-3819A WBS No 3419212 �)p� , 3 � � � � Apn115, 2011 �i Vvw�f !� 1 0 BASELINE INFORMATION The I 40/I 77 Interchange Area Improvement Pro�ect (T'IP No I 3819) �s located northeast of the Crty of Statesville m Iredall County NoRh Cazohna T'�e proposed 1550 acre pro�eM study azea encompasses the I 40/I 77 mterchange and five ad�acent mterchanges The topography of the pro�ect study area is charactenzed as gendy rollmg lulls with somz steep areas Gently rollmg topography is found vnthm mter stream azeas wrth steeper slopes found along the edges of some stream floodplaws Land use wrtlun the pm�ect vicuvty mcludes a mixture of commercial residentral agnculture mdustnal forested and pubhc/mshtuUonal land uses Pereruual streams m the pro�ect smdy area mclude 17 UT s to Fourth Creek and 2 UT s to Momson Creek No water supply watersheds Outstandmg Water Resources (OWR) Htgh Quahty Waters (HQV1� or Cntical Areas (CA) were idenhfied m the pro�ect study area All UT's to Fourth Creek have been assigned a stream Index of 12-108-20 w�th a classificaiion C wluch are fresh waters protected for secondary recreahon fislung aquat�c I�fe mciud�ng propagarion and survrval and w�ldhfe Junsdtchonal wetlands m the pro�ect study azea aze prunanly palustnne m nature as defined m Cowardin et al (1979) Some wedand systems ate defined as palustnne but aze hydrologically mfluenced by surface waters Wetlands that aze located adjacent to streams and recerve the ma�onty of hydrolcgy from the ad�acent waterways were idenufied as m�enne for this pro�ect 2 0 SITE SELECTION An „nnamed tnbutary to Fourth Creek enters the Northeast quadrant of the mterchange through a 48 mch pipe under I-77 The stream then runs pazallel to I 77 for approximately 2355 feet withm the potenhal stream nut�gatton area The pnmary degraduig factors along tlus stream aze cattle access and lack of a npanan buffer Wrthtn this potential m�hgahon area the upstream sechon of the Ut flows approxunately 1050 feet �n an incised channel through a steep U shaped valley The channel has several neaz vertacal banks and azeas of exposed bedrock Cattle gam access to the stream at severallocaUons along the banks causmg local�zed eros�on Along t}us sect�on of +he stream the npanan area along the nght bank �s densely wooded The npanan azea along the left bank is spazsely wooded with pines and hazdwoods Along the do.va;tream sec:ior. of the potenUal mrti�aUon azea the valley flattens as the strea.�n flows approx:mately 1305 feet m the channel at floodplam elevahon Cattle have full access to the sveam through this sechon The banks of fr.e channel have beer. severely degraded by hoof sheaz but the nffle pool struct�ire is shll lazgely mtact The far downstrezm end is se severely impacted by cattle that the channel is d�fFicult to distmgwsh as �t flows through a wetland dommated by herbaceous vegeiation The channel refonns as it exits the wetiand and the stream mitigation area A proposed 26 69 acre wetland preservauon srte m the southwestem quadrant of the mterchange is made up of several small svetland systems The s�te �s part of a 53 4 acre traci that NCDOT will be purchasmg for FEMA flood plam issues These nvenne wetlands aze m the floodpla�n of FouRh Creek that runs pazallei to the south side oY the tract 1 he largest wetland system vntlun the preservaUon s�te is tnfluenced by beavers creatmg a mosatc of open water forested wetland and herbaceous wetland The other wetland systems aze small forested wetlands The wefland preservation site is domuiated by Amencan sycamore (Platanus occidentalis) box elder (Acer negundo) and nver buch (Betula n�gra) These wetlands help treat ovedand flow from impernous surfaces upslope of this tract and also recerve overbank flow from Fourth Creek dunng heavy ram even[s 3 0 S1TE P�O'i'EC'i'ION INSTRU!bl�N,i' Tlic m,t,gai�un area� ai:, prescr.t.}• locatzd'�viilvr. or will te located ��i1-iln thc �ICDO; Pvght o: Way for the pro�ect 'I�hey will be managed to protubit all use mconsistent w�th rts use as mingat�on property mclu�l�ng any activiry [hat would matenally alter the biological mtegnTy or functtonal and educational v�lue of the site cons�stent wtth the mri�gahun plan �, The s:te vnll be p:zced on Lhe ?�IEU m�tigahon geo-database After closeout the sde will glaced ,� m the NCDOT Stewardsh�p Program for long term management and protcct�on � � 4 0 OBJECTIVES � e goal of the pro�ects is to re 1050 hneaz feet stre e ance 1305 lmeaz feet o tream and e 26 69 acres of wetlands The functional restoratio s� e wi 1 be accompLshed through replanUng a mirumum 50 foot buffer along both sides of the streams T?CDOT also purchased a 53 4 acre tract needed for FEMA flood plam issues Lhat cer.tams 26 69 acres of smaller mdrvidual wetland systems wrthm che tract 5 0 MITIGATION WORK PLAN The �n:i:gation areas wili be consrructea in �on�unctiun wrih TIP I 3�19A Construcii�n activrties invalve fencmg the mrtigation area and replanhng the appropnate tree species �n the buffer zone � The buffer o�the stream restoratzon and enhancement area v►nll be planted with the following nare root seedhngs at � den$rty of 680 trees per acre on 8 foot centers northem red oak American sycamore whrte oak and yellow poplar depending on ava.ilabilrty The banks of the s�tream restoration area will be planted wrth hve stakes on 4 foot centers unth siL�cy �ogvvood (Cortius arnorr�um) and buttonb�.ish (Cephalar�thus occidentalzs) depending on availab.hty . ^ The proposed wetland preservat�on consists of purchasing the 53 4 acre tract fee simple placmg the 26 69 acres of wetlands v�nthm the tract on the NCDOT GeoDatabase and protectmg them in pe�e�� , � . " � � 6 0 PERFORMAIr10E STANDARDS � ��J �l � � NCD�T shall :nonitor the stream mrtEgation areas by visual observatron, hoto_ats, and � __ moni#qnng vegetation s� 1 as well as channel stabih ermanen cross sec ' I�T� will omtor the srte for a minunum ot tive �ears or un i � si e is �.. e successful Benthic-macro mvert��rate surveys will be c�nducted pre and �ost restoratior. M cro invertebrate surveys vv�11 be conducted annually for five years NCDWQ Qua14 methods o collechon will be used per their Standazd Operating Procedures Manual (NCDENR 2006) . . All nnonito�ng a�t�vrt�es wi11 be initiated upon complehon of srte planiung 7 O 1l�ION�TO�NG REQUI�tENIEN�'S Upon successful complehon of construct�on, NCDOT vv�ll perform visuat inspection and photo points yearly for five years an�d document these momtoruig activrties on the srte in an annual report dzstnbuted to the regulatory agencies S 0 OTHER INFORMATION NC�DOT will conduct a benthic macro mvertebrate survey vv�tlun the streazn mrtigahon area pnor tc cor:s�:ictioa ta �cai�:.Tn�nt the basel:ne ce�dPt�ans of the si�� JP�n�ic su.��eys w.11 als� be conducted each year of the morutonng penod NCDWQ Qua14 methods of collection will be used as per the�r Standard Operating Pzocedures manual A11 data collection methods are denved from techiuques used by the NC Department of Environment and Natural Resources Division of Water Qualrty http //h2o enr state nc us/esbBAU html Srte mfor•naticn fozms includzng habrtat char�ctenzation e��l; be ccmnleted a� each samplmg location Locations will �e recorded wrth a Tnmble GPS urut to mdicate the exient of the sample area and loca�ions of existmg habitat Digital photographs will be taken at each samplmg locaticn PhysicaUChemical paramete:s will also be recorded at each srte water temperature dissolved oxygen (DO) conductivrty and ph Sampies will be field pqcked — the macro mvertebrates will be removed from respective collections and placed in vials of alcohol for transport to a laboratory where they will be identified to species level where appropnate 9 0 I�EiERM�AiIOIIot OF CI�DITS Per the NCDOT plans and 401/404 pernut application for I 3819A NCDOT proposes to � preserve 26 69 acres of nvenne wetlands 1305ft of stream enhancement and 1O50ft of stream restorat�on to mit�gate for permanent unpacts associated v�nth the TIP at the followuig ratios 10 1 for wetland preservation, 1 1 ratio for stream restoration and 2 1 for stream enhancement An as bialt report will be s�abmitted vnth:n 60 days of complehon of th� pra�ect to venfy actual acrea�e 7'he success c�f th_e mst�gat�on ase�.s an� deternunati�n of fnal credit� vv�1_l. be hase� e,,..�.- ugon su��essfi?1 comgle+ion of the mon�torLng All restoration e_*ihancerrient and preservation mingahon used for I 3819A vEnll be used wrtrthin the (HUC) 03040103 All unused stream and wetland mrtigation assets �nll be added to I�?CDOT s deb�t ledger for us� m ad�acent HT?C s in the future 91 CREDIT RELEAS� SCH�DULE NCDOT proposes immed�ate full release of the stream restoratton and en�ancement and the wetland preservation as on srte mrtigation for the associated nveruie wetland impacts of 1 36 acres and the 16661mear feet of stream impacts for I 3819A 1Q 0 GEOG�IiIC SERVICE �EA The proposed Geographic Service Area (GSA) for the mrtigation area is composed of the Hydrologic Cataloging iJnrt (HUC) 03040103 in the Yadkm River Basm 1 36 acres of the wetland preservation � y will be used for on srte mitigation affiliated wrth the TIP pro�ect I 3819A 1666 feet of stream mrtigation v�nll be used to offset unavoidable impacts associated wrth the TIP pro�ect I 3819A 11 01Vp.A�I4T'�.'EIoIAIiT�E PL�T The srte will be held by NCDUT and placed on the NEU mrtigation geodatabase Once momtor�ng is complzted and the srte is closed out rt will be placed in the NCDOT Stewardsiup Program for long term mamtenance and protect�on If ari appropnate tlurd party recipient is identif ed m the futurz then the transfer of the property w�11 mclude a coriservation easement or other measure to protect the nab�ral features and =mt�ga±son v3?�e �f the srt� Zn perpetu,ty 12 0 LONG TERM ADAPTIVE MANAGEMENT PLAN The srte v�nll be managed by the NCDOT accordmg to the rYutigation plan In the event that unforeseen �issues anse that affect the manager.lent of the srte any reme�iation w:ll be �ddressed by N�IiOT in coordmat�un with the Interagency Review Tearr� 13 0 �'INANCIAL .A�S�T�ANCES The srte will be managed by NCDOT wrth its own distinct cost center number within the NGDOT bLsiget�g and fnancial t_racicmg system Therefore all accountmg for rev�nu�s, contract encumbrances fund transfers and expenses will be performed and reported mdependent from other cagrtal budget or operating budget accownt�ng � � �. � �� -�''�� Stream and Wetland Mitigation Plan New Interchange at I-40 and I-77 in Statesville Iredell County aIP i-3�19� WSS No 34fl92 � 2 Apri115, BO11 1 0 BASELYN� INFORMATION The I 40/I 77 Interchange Area Improvement Pro3ect (TIP No I 3819) is located northeast of the �i�� of States��7:le li-� I:edell C�t:r.r,� Nor�h C�:�hna 'T12e p:opos�d :SSQ acr� pr�leet sr�dy ar�a encompasses the I 40/I 77 mterchange and five ad�acent interchanges T'ne topagraphy of the pro�eci study area is characterized as gently rolhng hills wrth sorne stee� dreas Gently rolling topography is found wittun inter stream areas wrtli steeper slopes found along the edges of some stream floodplams Land use wrtlun the pro�ect vicimty includes a mixture of commercial residentzal agnculture industnal forested and public/mstrtut�onal land uses perersu�l streatns in the pro�ect stu�y area mc1_ude 17 UT s to Fourth Creek and 2 UT s to M�mson Creek No �ater supply watersheds Outstandmg �Vater Resotsces (OWR) High Quahty Waters (HQW) or Cntical Areas (CA) were ident�ied m the pro�ect study area AlI J�''s to Fourtii Creek have been assigned a sixea�n Index of 12-1 G8 �0 w�th a classification C vvluch �re fr�sh waters protected for secondar� recreat�cn _fisiung aquat�c lxfe :ncluding propagahon and survival and r�nldlife Junsdichonal wetlands in the proJect study area are pnmanly paiustrine in nature as defined m Cowazdin et al (1979) Some wetland systems aze de�ined as palustrine but are hydrologically znfluenced b;� surface waters Wetlands that are ?ocated ad�acent to streams and receive the ma3onty of hydrolagy from *,,he adJacent waterways were identified as r.v�ruie for th�s pro�ect 2 0 S�T]� SELEC7CION An unnamed tnbutary to Fourth Creek enters the Northeast quadxant of the mterchange through a 48 mch pipe under I-77 T'he stream then runs parallel to I 77 for approximately 2355 feet v�ntYun the potential stream mitigation area The pnmary degradmg factors along this stream are cattle access and lack of a nparian buffer . . V�Irtivn this potential rrutigation area the upstream section of the Ut flows approximately 1050 feet in an mcised channel througli a steep U shaped valley The channel has several near vertical banks and azeas of exposed bedrock Catile gam access to 1;he siream at several locations along the'earlcs . causing loca�ize� p�osjon Ai�n� this seLtie.�n of th� strearm �he np�na_n area along th� nght bank is densel.y wooded The npanan area along the left bank is sparsely wooded wrth pines and hardwoods A�orLg the dcwns*�ream se�hon cf the pctent.al mihaation area tr.e vaLey flattens as the str�am flows approxunately i305 feet Yn the channel at floodplain elevation Cattle have full acc�ss to the stream thr�ugr. +1us s�,chon The banks of the channel have beer. severely degraded by hoot sheaz but the nffle pool structure is still largely intact The faz downs��am end is so severely impacted by cattle that the channel is difficult to distinguish as rt flows through a wetland dommated by hezbaceous vegetaiion The channel reforms as it exits the wetland and the stream mrtigaricn area A proposed 26 69 acre wetland preservation srte m the southwestern quadrant of t�he interchange is made up of several small wetland systerns The site is part of a 53 4 acre tra.ct that NCDOT will be purchasing for FE�IA flo�d pla.ui issues These nvenne wetlands are in the floodplain of Fourtl� Creek that runs paraliel to the south side ot the tract l he largest wetl_and system �nt��un- the preservation site is influenced by beavers creating a mosaic of open water forested wetland and herbaceous wetland The other wetland systems aze small forested wetlands The wetland preservation srte is domuiated by Amencan sycamore (Platanus occtdentalis) box elder (.4cer negundo) and nver buch (Betula nigra) T'hese wetlands help treat overland flow from imperv�ous surfaces upslope of tlus tract and also receive overbank flow from Fourth Creek dunng heavy rain events 3 Q S�T� �RO�'�r"I'I(Jl� JENSTRTJI�I.�L�N�' i'hc �r;itigatian arzas are p�esenti� locatsd w�ttun cr ivzll be loest�d wit�'i;i-� ��.t�e �`��DCT I�g� t af Way for the pzo,ect They will be managed to prolubrt all use inconsistent vv�th rts use as r�utigation property inciuding any activiTy that wouid matenally aiter the biological mtegnty or �unctional and educational value of the site consis�tent v�nth the rrutigation plan The site wil? be pl�ced on the NEU mrtlgatron geo••database A$er cleseout the site wil! p?aced in the NC�OT Stewardship Program for long term management and protect�on 4 0 O�.TECTIVES � � � � � The goal of the pro�ects is to restore 1050 linear feet stream enhance 1305 Iinear feet of stream and preserve 26 69 acres of wetlands The functional resioration af the strearn srte wall be accomplished through replanting a minunum 50 foot buffer along both sides of the streams NCDJT also gurehased a 53 4 acrP +�act *�eeded for FEMA flood plaui issues that �o�ta:ns 26 69 acres of smaller mdrvidual dvetland systems vrntlun the tract 5 0 MITIGATION WORK PLAN The mi�igation areas �nil be constructed in con��anction with TIP I 38i9t� Constzucti�n activities ulvolve iencing the mi�igahon area and replanting the appropnate tree species in the buffer zone The buffer of the stream restoration� and enhancement area will be planted wn�h the followmg bare root seedlmgs at a densrty of 680 trees per acre on 8 foot centers northem red oak American sycamore whrte oak and yellow poplar dependmg on ava.ilabilrty T"ne banks of the stream restoration area wil.l be planted wrth live stakes on 4 foot centers wrth silky dogwood (�ornus amomum) a�Zd buttonbush (Cephalanti�us occidentahs) dependmg on availabilrty The proposed wetland preservat�on consists of purchasing the 53 4 acre tract fee simple plactng the 26 69 acres of wetlands wrthin the tract on the NCDOT GeoDatabase and protecting them m Pe�e�� ' 6 0 PERFOItMANCE S'I'ANDARDS 52� NCD�T shall momtor t�e strearn mitigation azeas by visual abservat��r, phot� poin#s, and ._ m�nttonng vegetation survival as well as channel stabihty through permanent cross sections NCUUT wiil momtor the srte for a minunum of five �eazs or uniil the srte is deemed successful Bentluc :r:acro mvertebratP surveys will be conducted pre and post restoration Macro mvertebrat� surveys vv�ll be conducted annually for �ve years NCD�IJQ Qua14 methods of collechon will be used per their Standazd Operating Procedures Manual (NCDENR 2006) All momtonng activrties w-�ll be iruhated upon completaon of srte planrung 7 0 MO1vITOR�G ][2��JIItEMENTS Upon successful completion of construct�on, NCDOT vrnit perform visual inspecuon and phato points yeazly for. fve years and document these momtonng activit�es on the srte in an annual report distnbuted to the regulatory agencies . 8 0 OTHER IN�ORMATIOPT NCDOT ��11 conduet a benthic macro mvertebrate survey �tYun the stream rruhgation area pnor io vonst�ct�o:: �� doct:me:�t tr�e base�in� �or��tior.s �f �he s�t� D�er�thic st:�-��eys wi?I a:so be conducted each year of the monitonng penod NCDWQ Qual4.methods of collection will be used as per tl�eir Standard Operatmg Procedures nnanual All data collection methods are denved from techruques used by the NC Department of Environment and Natural Resources Division of Water Quahty http //h2o enr state nc us/esbBAU html Srte ulfarmation farms inc:udmg habrtat charactenzation v�ll �� completed at euc� samplir,g Iocation Locations will be recordzd vv�th a Tnmble GPS urut to mdicate the e�ent of the sample azea and locations af existmg habitat Di�rtal photographs will be ta:;ea at each sampl�ng location PhysicaUChemical parameters •,�nll also bP recorded at each srte vira*er temperature dissolved oxygen (DO) conductivrty and ph Samples will be field picked — the macro mvertebrates will be :emoved from respective collections and glaced in vials of alcohol for transport to a laboratory where they will be identified to species level where appropnate 9 0 IiETERIi�IIloT�TI�N OF CREDiTS Per the NCDOT plans and 401/404 pernut application for I 3819A NCDOT proposes to preserve 26 69 acres of nvenne wetlands 1305ft of stream enhancement and l O50ft of stream restorat�on to mrtigate for permanent impacts associated v�nth the TIP at the followuig rahos 10 1 for wetland preservation, 1 1 ratio for stream restorat�on and 2 1 for stream enhan�cement An as built repart v�nll be submrt#ed vnttun 60 days of com.plehon of the pro�ect to venfy a�tua! �creage Th� su�cess of the !nit�gafa�n areas �nd deternainatinn �f f nai �rP��t� v�r_1). be base� �apQ� s��ccessfisl ��mFlet�on of the rnorstorisg All aestoration enhancement and preservat�or_ mit:gation used for I 3819A will be used wxthi.*� the (HUC) 03040103 All unused stream and �etland mrtigation assets will be added to NCDOT s debit ledger for use in ad�acent HUC s in t�he future 91 CREDIT RELEASE SC�IEDiTI..E NC�OT proposes immediate full rel�ase of the strezm r�storation and e�hancement and the wetland preservation as on srte mrtigation for the associated nvenne wetland impac4s of 1 36 acres and the 16661inear feet of stream impacts for I 3819A 10 0 GEOGRAPHIC SER�e�IC�. AREA The proposed Geographic Service Area (GSA) for the mrtigation area is composed of the Hydrologic Cataloging Unrt (HUC) 03040103 in the Yadkm River Basin 1 36 acres of the wetland preservation vrnll be used for on srte mitigation affiliated wrth the TIP pro�ect I 3819A 1666 feet of stream mrtigation v�nll be used to offset unavoidable impacts associated wrth the TIP pro�ect I 3819A � 1 0 MAII�T�'E1�IART��, PI1�T The srte will be held by NCDOT and placed on the NEU mrtigahon geodatabase Once mozutonng is completed and the srte is closed out it will be placed in the NCDOT Stewardstup Program for Iong #erm mamtenance and protection If an appropnate thizd party recipient is identified m the future then the fransfer of the property will mclude a conservatian easement or other measure to protect the natural features and rnrtigat:en va1u� cf the srte in pPrpersi+y 12 0 LONG TERM ADAPTIVE MANAGEMENT PLAN The srte v�nll be managed by the NCDOT according to the mzhgation plan In the event that unforeseen issues ans� that �ffec: ti:e management of the szte any remedxation t�ll be address�d by NCDOT m coordinatron wnth the In�eragency Review Team 13 0 �IIVANCIAL ��SURANCES The srte will be managed by NCDOT wrtli rts own sinstznct cost center number witlun the NCDOT budgetmg and financial trackir_g system Therefore all accounting for revenues, contract encumbrances fund transfers and expenses will be performed and reported mdependent from other caprtal budget or �perat�ng budget acc�unting � Sub�ect '�'eam 1i9[emb�rs Minutes from Interagency 4B Hydraulics Design Review Meeting on September 23, 2009 for I 3819A m Iredell County Steve Lund USACE Marella Buncick USFWS Ivlarla Chambers NCWRC Poily Lespmasse NCDV�IQ Kathy Matthews EPA Donnie Brew FHWA Bryan D Taylor Roadway Mack Bailey Structures James F Bn�ges PDEA Carla S Dagnmo-NEU David Hams REU Dan Gnsson Division 12 (present) (present) (present) (preser.t) (present) (present) (absent) (absent} (absentj (present) (absent) (present) Parheipants Marshall Clawson NCDOT Hydraulics Dan Duffield, NCDOT Hydraulics Clayton Walston NCDOT Roadway Undrea Ma�or NCDOT PDEA LeiLam Paugh NCDOT NEU Brad Chilton NCDOT NEU Jeff Reck Mulkey Engineenng Herb Turner, Ko/Florence & Hutcheson Dayid Fuh,'Ko/Florence & Hutcheson plan sheet 4, -L- 22+80, stream not iabied, exisiin� crossins 60" CMP � 1 Replace existmg pipe with a 72 pipe Rip rap will be placed at the outlet on banks onl� tc pro�ect t��e strearn bz,�ks .,� -S3riGG i�:13 ��dSriOZl IS O�$51d@ N3iili.l.l ReSaii_rC� S� IG.y �r�a �t �s nci 3abale� as a ��r_sdicrionai siream in Environmental yssessment or I�iEU wetland/siream dig�tal file Tt is a blue lme m USi'aS Quad and shown as JS in Location and Survey plan file JS status may need confirmahon with updated NEU wetland file plar� sheet 6, -L- 53+00, stream 526, exYsttn� �a-ossang 36" RCP 1 The existing pipe will be retained wrth an extension on the mlet end The stream at the outlet �nd will not be disturbed plan sheet 7, no streams or wetlands 1 Dry detenhon basin at Y3A 38+00 LT to collect onsite pavement runoffs for treatment with outlet to an existing dztch �alan sheet 8. -L- 92+00, stream S1 (Fourth Creek), exishn� crossan� 3-snan dual ' �rici es 1 The existmg dual bndges �nll be reglaced by a very wide 3 span bntige New 3 span bndges on Y4RPA and Y4RPD will be const�ucted immediately up and down5tream of the existir.g crossing, zespectively 2 Onsrte pavement runoffs pnor to begin of the L bndge will be drained to a wet pend at L 91+C0 k�' in S�Y �uadrant for treat�ent befo�e er�tering ihz siream The wz� pond will be utilized due to the seasonal }ugh water tab?e I 3R 19A 4B Hydraulics Design Review Meeting September 23 2009 Page 2 of 5 Bndge deck pavement runoffs and onsite pavement runoffs after the end of L bndge �ti�11 be dramed io a dry detenti�n bas�n at L 95+50 RT in SE qua�.rant for treatment before entenng the stream alan sheet 9 -L-104+00 to 120+00 1 The stream parallel to I 40 and on �ust south side of I 40 will be filled Fourth Creek is r�ot being filled bu� rts floodplain is encroached �Nith roadv��ay fill The flood conveyance will be reduced The new bndges on Y4RPA and Y4RPD (sheet 8) will also have �pacts to floodplain conveyance Extra measure is needed to produce no nse in the 100 year water surface elevahon To achieve this goal rt is proposed to clear and grub approximately 6 5 acres of land from L 103+00 RT to 113+00 RT to reduce the flow resistance in the floodplain area The land will be maintained as a grass field by NCDOT � � " 2 Tlus stream with a well defined channel and water depth within wetland area (W 15) is not labeled as a stream in Environment Assessment or NEU wetland/stream digrtal file but rt is shown as JS lmes m Location & Surveys plan file If considered as a stream NEU digital file may need to be updated � Storm Water Divers�on BMP v�i113e used m tlus area The offsit� runoffs will be c�rained dzrec+ly to the strPam and o�nsite navement runoffs unll be drained by three outfalls to werla.nd 1W151 with non erosive sheet tlows 4 Stormwater treatment by Junsdictional Wetland is not allowed therefore, the phrase Stormwater Draui to Wetland for Treatment m Storm Water Management Plan should be revised to indicate that onsite pavement runoffs have been treated through roadside grass swales median swales, lateral swales, tail swales and existing natural swale pnor to entenng the wetland (W15) D�-v Detenhon Basin at -L-123+001tT 1 Onsite pavemen� runoffs will be collected in this basm for treatment before entenng the stream (S 12) The existing 54 pipe under ramp C will be retained and used as the outlet pipe for the basin This pipe wfll be extended with �uncnon box to d�ssipate energy to provide a nan erosive outlet flow to the strears (S 12) Rip rap will be placed at the outiet on banks only to protect the stream banks -YS- SO+OQ to 55+00 1 The stream (S 17) and wetland (W20) will be impacted totally due to interchange construction � Plan sheet i0 � -L-149+00, Fourth Cr�ek Trii�uiarv 3 The existmg 2@7'x7' box culvert along stream S2 will be retained Therefore there are no strearr� impa�.ts up or dov��nstrea�n or th� �rossir�g � I 3$19A 4B Hydrau�ics Design R�v:e�N Meei�.*:� September 23 2009 Page 3 of 5 Drv Detenhon Basin at L-144+00 RT T�is bastu �visl collect ansite pavzment svnofi� fi�sr� �ntercha�ge ar�a foz reatrient and will be drained to stream S2 For the basin outlet pipe a �uncticn box to dissipate e�ergy and a wide base drtch wrth np rap to diffixse outiet flc,w to t�e stream S2 will be used Instead of 90 degree the angle of the base d:tch to the stream should be revised to provide a better tie to S2 -YkZPD- 16+62, Fourth Creek Tril�tutarv 3 1 A new 3 span bndge.will be constructed on the ramp over stream S2 Wetland W 12 will be impacted because of the bndge end bent fill 2 Bndge deck runoff will be drained to a preforrmed scour hole to provide a non erosive SilEEt ii�JV tG WE�lar�d �'�'12 Team ��scussed ifbnuge de�n n:noff can cross the ramp and drain to the dry detention basm Smce only a small amount oi runoff wiil be collected through bndge deck, drammg to the preformed scour hoie should be fine On SE quadrant of the new bndge onsite pavement runo£f wzil be treated through roadside grass swales before entenng the stream S2 For the grass swale outlet pipe a �unction box to dissipate energy and a wide base ditch with np rap to diffuse outlet flow tc� the stream S2 will be used The angl� of the base c�itch to the stream should be re�ns�d to provide a better tie to S2 �?'��A�3� sS+O� �r� 1S1�r ��'. LT?' t� �'�:��t�. �:ce� '�'��-J 3 A retainxng wall Zs preposed to avoid impacts to stream �b and ��etland W'1 Te�n discussed if retaimng wall can be eliminated to save some construction cost If the wall is elimu�!ated approximately 200 feet of stream uzxpact and 0 15 A.c of wetland impact are anticipated The stream S6 can either be enclosed with a culvert or relocated �fter nieeting, NCDOT will compare cost for all alternatives and make decasion Plan sheet 14 No cor_struction is proposed along I 77 south bound lanP therefore, the.re are no unpacts on wetland W 15 on west side of I i7 I 77 north bound lane construciion beglns �ust north of exishng bndge over stream S 1(Fourth Creek) Therefore no stream impacts to S 1 2 The wetland W 14 on east side of I 77 is outside proposed nght of way Therefore, no . wetiand impacts to W14 All onsite pavement runoffs wi11 be treated through median grass swales roadside grass swales and exishng natural swale before entenng the wetlanci W 14 with a non erosive sheet flow �lan 5heet 15, �J'I' to Fourth Creek Tributarv 3 1 The proposed nght of way mcludes the stream S6 on east side of YRPA This area is r�s�rve� tor streani e�.ancement �ro�a� to pr6viue str�a� bu�er; p?ant and fer.ee The �urroundir�g area :s pasture in natu�e I�819A 4B Hydrau�ics l�es�gn Review Meetmg September 23. 2009 Page 4 of 5 2 The existing outfall at YRPA 22+00 RT will be maintamed All onsrte pavement �acffs will be treatel t�rauglz rredzal grass sa�ales roa�s�cle swal�s, and �xisting natural swale before entenng the stream Because of steep natural ground slope a pipe to prevsnt erosion and a �unchon box to dissipate energy will be used Also a wide base drt:,h with np rap to diffizse flo �v to the steam S6 �,�1 be provided The ar.gle of the base ditch to the stream should be reviseci to provide a better tie to S6 �Ians shee� 16, Y- 169100, eXlstnn� crosS UtUe 48" RCP 1 The stream S6 be�ns at outlet of the existing crass pipe All onsrte pavement runoffs will be treated through median grass swales and roadside grass swales before entenng the stream S6 A �unchon box will be used to connect the grass swale outlet pipe (24 ) anci the cross pzpe (48 ) to dissipate energy to provide a non erosive outlet 1ow to the stream S6 Rip rap wil� be placed at the outlet on banks only to protect the stream banks � plan sheet 19, -Y4-18+70, Free Nanev Branch, ex�stm� 2(�a,9'xll' box culvert 1 The existing box culvert along stream S 15 will be retained Only the headwall at inlet will be raised to accommodate the proposed roadway Therefore no stream impacts to S15 The exishng box culvert extends downstream with 2@188 x117 corrugated metal arch pipe for approximately 1000 The surrounding azea is higl�ly ccnnercial�z�� urb2.n area P:epose� gre�ect s:r.crease :n impet-vie�� area is i_^.s:gn��:c�:-�t Tlisrefare, ;.r�atsnEnt %r ozsit� ra_.r��fs is noi p:act�cal rx.si�r:g �r��ag� patiems will be maintained Plan sheet 20 -Y4- 36+00, exishn� 3-span brid�e over Fourth Creek 1 The existang bndge over S 1 will be retained and no construction activity for the bndge Therefore, no stream impacts to the stream S 1 T'ne surrounding area 1s highly commere�ahzed urban area Because of this restnction and the pro�ect lxmits of proposed roadway construction, treatnnent for onsite rur.offs is not feasible Existing drainage patterns will be maintained -Y8-15+90, pr�uosed 2-span brid�e over Fourth Creek . 1 The new bndge is over stream S1 All onsite pavement runoffs will be treated through roadside grass swales and tail grass swale before entenng the stream S 1 The grass s�uale outlet to the streann from north end of the bndge will be protected by np rap at embankment to prevent erosion to stream bank . plan sheet 21 -SRi- 6+69 mropmsed 2c'�9'x T box cuAve�t �long �'a�ar�h Creek Tributae^,� 3 i The stream S9 will be impacted far tlxas new crossing The culvert will be buried 1 to provide a natural stream bed The culvert west cell with a sill at inlet end provides conveyance for overflow (larger storms or ma�or floods} The culvert east ce11 �-�;nai�taxns�normai or lotiv flo�v The east cell widY�hi mat�hes tLe chan��l wadth to �r�•neie a coni�nut�m �� water dept�� ana width 4v�fhout substanhal m�dificatio�s ai � I 3819A 4B Hydra�iLcc Design Revi�w Meehng September 23 2009 Page 5 of 5 velocrty The nprap for outlet protection will be placed on banks only and will not be placed ir: s�eambed The norcr_al fi.znctionitig of sed:ment ira��spon dur.i�g bankfu� discharge can be maintained and the stream will not degrade or aggrade 2 The w�tland `V"8 w,I1 be impacted because of tzm.porary divzrsion cha�-uiel and stilling basin dunng construchon Mechanized cleanng within the temporary drainage easement is expected 3 All otisite pav�ment runoffs will be treated through roadstde grass swales before entenng the wetlaad W8 and the stream S9 -SIZl 15+GQ urouosed 66" RCP 1 T'he stre� S24 will �e unpacted for this new cr�ssing The culvert w:ll be �u*�ed 1 to • provide a natural stream bed Rip rap will be placed at the outlet on banks oniy to proiect the stream banics 2 All onsrte pavement runoffs will be treated through roadside grass swales before entenng the stream S24 Rip rap on banks only will also be placed at cross pipe inlet end to protect banks for the grass swale outlet pipe � Sub�ect Team Members Minutes from Interagency 4C Permit Drawings Review Meering on January 13 2010 for I 3819A in Iredell County Liz Nare USACE David Baker USACE Marella Buncick USFWS 1Viarla Chambers 1�TCWRC Polly Lespinasse NCDWQ Chns Milrtscher EPA Donnle Brew FHWA Bryan 1�? Taylor Roadway Mack Bailey Structures James F Bndges PDEA Carla S Dagnmo NEU David Hams-REU Dan Gnssom Division 12 (present) (present) (present) (absent) (absent) (absent) (absent) �absent) (ansent) (present) (present). (absent) (present) Part�cipant� Marshall Clawsvn, NCDOT Hydrauhcs Dan Duffield NCDOT Hydraulics Claytan Walston NCDOT Roadway Karen McCauley, NCDOT Roadway Undrea Ma�or, NCDOT PDEA Enn Cheely NCDOT NEU Brad Chilton NCDOT NEU Rar,.a.� �r,ffin NCD�DT TIEU Mark Staley NCDOT REU Kevm Alford Ivlulkey Engmeers Matt Harvey Mulkey Engineers Herb Turner Ko/Florence & Hutcheson David Fuh Ko/Florence & Hutcheson � he fol�o �vir.g �s a�nef sLtr:mar�s of the discussions on the pro��ct General - • General introduchon was znihated by Marshall Clawson Introductions were made by all in attendance • Polly Lespinasse was not m attendance, but her questions/comments were sent via �mail and discussed • At the wetlands change the Hand Cleanng Impacts to Mecnamzed Clear�ng Im�acts • Brea.k aut ban.k stabihzanon imgacts on the impact summary sheet • To be consistent with other sheets, show sheet number and R/W sheet number at nght upper corner for sheets 8 9 and 10 Plan Sheet 4 o Proposed 72 Cross Pipe installed by Trenchless Constructi�n Methods at —L 22+$0 (Permit Srte 1) o NEU is confirming tf Tnbutary entenng the channel downstrea.�n of the oLtlet is JS or not o The permane�t impacts are needed to the R/W hr�e sc that adequate area is � ven for the Trenchless Construchon - Plan Sheet b •- Retain Exlsting 3f RCP Cross Pipe at —L 52+60 (permit Srt�s 2& 3; � e Chang� the s�t� name to m.�l:e t�:is lecatxon cne sii� � 9 I 3819A 4C Pernvt Drawuigs Review Meetuig January 13 2010 Page 2 of 4 o The permanent surface water impacts at Srte 3 are due to placing bank stabilizataon along the cn2nnel �reak out ba.*i1c stabilaza�ian impacts on the impact summary sheet These impacts will shll be permanent impacts Plan Sheet S • Fillmg m Exisnng Stream Between Stations --L 86+25 RT to —L 92+20 RT (Permit Srte 5) o There were concerns regarding where the water zn stream go�s since the channel was bemg filled m It was stated that the water in the stzeam w�ll be ' picked up in the storm drainage system and discharged into Fourth Creek o This stream is intermittent • R:p Rap Impacts From Outiet Ptpes Along Fourth Creek at Stari�n —L 93+50 RT +/ (�'ermrt Site 6} o Rip Rap out the outlets needs to be Class I Rip Rap with a median stone size rangmg between 10 mches and 17 inches m size o Break out bank stabilizahon impacts on the impact summary sheet These impacts will still be permanent impacts o The banks under the bndge need to be armored and the impacts added to the Srte 6 impacts Herb Turner �nnll make the changes and send the revised BSR � to structures to �ave mcorporated into the plans �-`�arn �� 8 �i � • Fill in `J�e�lai�ds Be�vveen �tai��ns —L 99+', 0 RT to —L 1 I4+25 R i(Pe�-mrr Srte 7) o The JS stream lines do not need to be shown on the plans Location and Surveys needs to update their files so that the stream lmes do not show up as JS o There wzll be an exfension placed on the 72 RCP and ditch work complete3 at ihe outlet Smce the JS lme is shown incorrectily at this location, these impacts will vvetland impacts as shown � Plan Sheet 9 • Proposed 54 RCP at —YF.PC 20+50 RT +/ (Permrt Site 8) o The unpacts from the from the end of the np rap at the pape outlet of the �iroposed 54 RCP to the existing 24 CMP that is being removed should be shown as temporary surface water unpacts rather than permanent surface water unpacts o ��Vhen the 24 CMP is removed the channel section that is constructed will dayhght the stream o Coir Fibe: matt:ng should be addsd to the drtch detail where the 24 C� is removed and a channel section is eonstructed Plan Sheet 9 & 15 e Filling an Existing Strea?:1 between Stataons —YS 50+40 to —YS 54+$0 (?ermit S�te 9� J � I 3819A 4C Permrt Dravsnngs Review Meetu�g January 13 2010 Page 3 of 4 o There were concerns regarding wheze the water in stream goes since the channel was being lilled m it «as �tated that t�te water in the streac� will be picked up m the storm drainage system o Rip rap will be placed between the 24 RCP and 54 RCP as a dissipater for the 24 RCP - o This area will need to be built wrth sheet pihngs zn order to maintain traffic and flow of the stzear� Dan Gnssom will coordinate tlus with the traffic engineer Plan Sheet 10 • Fill m wetlands at Stations —L � 47+00 Rt +/ (Permit Srte 10) o Show Cleanng Limits af Wetlands to the R/W hne - �- Rip �ap Impacis rror�i Di�ch Outtets at Sta�zon —L 1�r8+00 RT +/ (Perrirt Srte 10) o No np rap shall be placed m the streann • Ditch Outlets into Wetlands at Stations —L 146+30 LT and 149+00 Lt o Show impacts to wetlands for construction purposes � , Plan Sheet 16 � • Proposed 48 RCP at —YRPA 33+40 RT (Permrt Site 11) o Rip Rap out the outlets needs to be Class I kip Rap with a median stone size .. ra*?gmg b�twe�n 1.�1 anches and 17 inches in szze _ P:a�t S�ie�t 20 • Proposed Outfall Channel at Y8 17+50 ItT (Permrt Site 4) o There are concerns with the outfall channel entenng the stream at a 90 degree angle It was stated that the velocities are too low to cause impacts to the siream -Rip�Rap out the outlets needs to be Class I Rip Rap with a median stone size ranguzg between 10 �nches and 17 inches in size o The 23 of permanent impacts shown on the impact summary sheet are needed to construct this channel , Plan Sheet 21 • Proposed 2@9 X7 RCBC at —SRI 6+70 (Permit Srte 12) o At the outlet of the culvert the permanent surface water impacts should er.d at the PDE and temporary surface water impacts should be shown from PDE to tne TDE o Ai the mlet of the culvert the permanent surface water impacts should end at t�ie channel improvemenis arid temporary surface water impacts should be shown from the end �f the per_m�nent surface water impacts to the TDE o The proposed channel bench should be protected with Class I Rip Rap v�nth a . ined.a.� st�ne s��e ranginb'oetweer� 10 :�c�es an� 17 inchzs m size o The floodplain bench length should be shown separate on the impact summary sheet because the length along the floodplain bench is not mrtigable I 3819A 4C Pemut Drawmgs Review Meeting January 1� 2010 Page 4 of 4 o The location of the JS stream line is incorrect Locahon and Surveys needs to i�x i.he lflcat�or_ m thd�r files o Only one JS is going thru the culvert since the JS stream Iines are shown � incorrectly on the plans The impacts for this have been accounted for ��,; 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