20080737 All Versions_Mitigation Information_20071214

SEP-1E-2008 13 28 From DOT OFF OF NRT ENVI
I`
P 1,3
tt ECE V ED
DEC 14 2001
919 715 5501 To 9197336693
-S1 A I`R (N N[)T{TH CAROLINA
DEPARTMENT OF TRANSPORTATION
MiCNAI_I_k FASUY
r iovrR NnR
Dccembei 13, 2007
Mt Richard Spcnecr
U S Armv Coil? of T_-,ngtticei s
Post Office Box 1890
Wilmington, North Carolina 28402-1890
SubjL0 Mitig-,itiot)ft)rl?,iyettwvillc()utcr loop
TIP No,; iJ-2519 and X-0002, W BS 34817 1 2
Deer Mr Spvnc,ei.
DMSION OF HIOHWAYS
PDEA-OFICE Of NATURAL ENVIAONIt1ENT
Ll NDU 1 1131,f -TT
S1(141 11,P1
Tht, NCDOT piopo,,u5 d4,biting the Privateer Fainis mitigation site (t'ttvateel 5Ite) f<n
anticipated niiligition needs associated with the Fayetteville (hitch Il;op (1.OL),
TI ansportation In1pr0VLI11Lnt Program (TIP) Piojcct Nos U-2519 aixl x-0002 ]'he
lollotvmg Supporting Information presenLs a 5un1i1iary of the. FOL pro)ect impact, the
Privateer Site status and ciedtts, cind. the fum tional assessment for the wetland and sbut n
impacts and ritigation Maps, form:,, and detailed silt. mfuiniatlon ate pmvided on the
NEU wcbsite http //www ncdot oig/cloh/pieconstruct/pc/ncu/Monitoring
The. Fayateville Outer Loop is estimated to have the following impacts in catal(+gurng
unit (('tJ) 01030004 of the Cape Fear River Baffin
(1) 12,838 feet of stream impacts
(2) 49 76 acres of riparian wetland tit)pacts
(1) 11 84 acres o I non-riparian woland impacts
These nunlbei, inJude 1111pvctS front all tieLtu>nw of the probed, including those iuiidul on
the i IP and those post-yeas Cuitently there is not a sufficient amount of Stieani or
wt,tland mitigation credits available in CL) 03030004 that have completed consti uction
The Privateer ile is located in (:LJ 03030005 of the Cape hear River Basin, (IT) LhL
boundary of Cumbeilancl and Bladen counties, approximately 6 miles ftotn the souther li
bourxim v of ('t J 03030004 (-,ee itt.lLiled rn.ip) 1 lie pi(?jec.t retitored 402 5 aLT , 01
t iparian wetlands, etllianced 25 acres of ripat Ian wetlands, and I estored 34,00 feet of
Harrison ("tt,ek, making it one of the laigest ecosystem restoration ptojects in the
?outlieast I he pioiect has completed its thii d vent of moiiitorung 1 he rno iitonrig
mpoits arc provided on the accompanying disc There have been tar) debits Rota this site
MAILING ADDRESS TULPI IDNE 919 733 3141 LOCATION
NC DFPARTNFNT OF TRAN$PCIRTATION FAX [phone]A 1 PANTr QRTAT DN BUR UINC
PRXEC T OFVCLOPMCNT AND EWIRf1NMENTAL ANALrSIS 1 9011TH WILNIIN,TON S I R6J- I
i 14A MAN Srr•rl(_r f EN I rk WEBSITE V?L W DoN L)OT STATE NC US Rrtl FI H N
Ln?rin tl/ 17(,M11 17
SEP-15-2008 f°16N 14 43 TEL [phone] NAME DWO-WETLANDS P 1
SEP-15-2008 13 28 From DOT OFF OF NAT ENVI 919 715 5501 To 9197336893 P 2.3
Mr Richaid Spcncei
December 1 i, 2007
I'age ?
5ticain flows from larger storms now spiead onto the floodplai n, which iecluci;S the
enctg,y of the wAuT and results in less ciosion of stiewn banks `itruetures pldLed within
lhc, strc tinbcd c,ontiol its grade,, reduce stress oti Gtreani barks, and create a more di" erse
habitat for fish and other aquatic organisms Rip in in wetlands were rc?,toi ccl by
rt cWnneOing Hartisou 0eek with its original floodpldin
Foi comparison of impact types and quality to niitigatioit tyke and quality, IunLtic?nal
assessinLritS were completiA for a representative sample of the impact. sites drier the
Privatect site duting the month of Septembet A. total of 31 wetland impact ,ite,, oil the
FOL were. evaluated using the NC Welland i unctional Assessment Method (N( W AM)
Of the 3 I sous. 25 weir classified as riverine and 0 as non-riverine, with 5 diffetent
wc,tland types tepiesented A table of site lypLs, sc,oies, spr,Lili , siti- f'orrii.., and score
vhLctti are prOVIdecl On the accompanying ditiL All but 3 tints received an overall score of
high quality However, 1 I of the impact siluti Scored low of mediuinn on the habitat
lunc,tion The recfuLed score was mainly t-rom low vegetation Lmtipositum or phyoLdl
,ArUdure score", The low habitat scores ieflect site character istics such a5 alteied
vegetation composition, lack of vegetation strata, lack of mature trees, and low species
diversity
An NCWAM evalctaticxn was Linnpleted on eaLli of the thtee wetland type", on the
Pr valuc;r site The NCWAM form", mid sLne sheets fol the Riveiine Swarip loresl,
Bottomnland i aidwood forest, and lleadwater forest.ue provided on the ?ut-cnnpanyi ng
disc, All three wetland types received an overall ,v)ie of high quality I he Itrverrine
Swamp and Bottoinland Hardwood NCSts reLeived a low wore for the habitat full 1.1011
Like the impact sites, these low habitat scores ieflect the lack of matu ie trees and
e,cpected strata However, the habitat scores on the Pnvateei site arc expcct(d to improve
over trnie As tillown in 1.11L nu7iutoring reports, the appropriatL 5pccics were plaiitccl oti
the silt rind arc meeting success criteria for survival and conipc)stticm Sinoc the Pi iv tteei
site ie protuctcd to perpetuity, the vccCtation will continue to gtow and reach the expected
canopy and diversity
Two stream impact Sites on the F()1 weie evaluated using the pieliriin iry veislon of the
NC Stream Functional Assessment Method (N(`SAM) far lintel Coastal Plain ",tieain
type The fcinns and score, sheets for these evaluations are not provided because of the
prcliininary nature of the NC'SAM Two sections of the LIT to Carveis Cieck, one in the
forested section and one in the non-forested -,(,(,ion, were evaluated during a liLld
exercise by the NCSAM team The forested section received an oveiall sunie of high
quality Thi", ,eoion of stteain is LhdiaLlcniLd by i stdblL c.lnannLl, d mature ?t gctak d
buffer, and good in-stream habitats f he non-foiestecl section ieceived.nn overall ",core of
low qudhty 't'his ;,rite is chalactenicd by laLk of utaturL vugLtdtLd bulfcr, little. of no in-
stream habitat, and a &;tuihed sticamside area
SEP-15-2008 MON 14 43 TEL [phone] NAME DWO-WETLANDS P 2
5EP-1c-7-2003 13 28 Ftom DOT OFF OF NRT ENVI 919 715 5501 To 9197336893 P 3,3
M1 Richard Spcncci
Ducu nbcl 13, 2007
Page 3
An NCSAM evaluation was c.ompletecl orr thtce sections of ie5tonud Sttcatn,
corresponding to the tluee wetland evalurttion 1tx..t110115, on the Pi rvateei site All three
strewn secttotts received an overall score of high quality 'l'ire stream section', ddlao,Vnt to
the Rtveiwe Swamp and Bottonnkuid Hardwood forests received a low quality score fbI
the habitat function Thebe scores are charauter.tittc of a site with low rrchrruss and
diversity of tn?rc.ror-bunthics, lack of mature vegetation to the stream-SIde area and laQt nt
nn.-stream l.abitat type', The drought conditions and age of tllc site coati ibuted to these
reduced s4ores However these tactors ate expcc.tc,ci to improve oven time srnuu the site i',
prutULtcd rn. perpetuity
1 lie NCDOT requests debiting the Privateer Ni to at a ratio of 15 1 for Jreanr, rrvcrane.
and norurveiine Impacts for the FOL Thrs request IS based on the following factors
e The Privateer',rte rs constructed and has completed its third year of monitoring
The, quality of the n utigatum, as shown. rn the functional assessnrr"r.ts, rs az; high o
higher than the impact sites
The Privateer Site r', rneutnng success cr rtei ia, is 1111,911 qudlrty initrgatioti `rte, and
showing trends toward a mature forested wetland and streann system
e There i5 not a sufficient anrourll of stream or wetland mitigation cretin,: atiarlal-)lC
CL 030-30004 that have completed construction
7a Fou for review and con',nderatum of this request 11v,, rnflorniatiOrl will also be
included in the pcrn.nt application for the FOL If you have any questions. please call
1_e?Lam Paugh at 919-715-1457
r
rs
ur
1?rncerely,
l:
, 75
C;tcg i- }orpe, Ph
Brans Ma alter
Project Development & Frivtn7n7nic.ntal Analysis
GJTibe
uc Dcborah Baiboui, NC,DOT, Prcconstruction
Sc,otl WL endon, USAGE, Wrlm.ngtotr
far rain \N r enn, NCDWQ
Kathy Matt hews, 11-SEPA
Gary Jorclna.n, USVW5
Tra\is Wilson, NCWRC'
Tim Rerko. Division 6, Environmental Officer
Beth Harnion, NC'ELP

SEP-15-2008 MON 14 43 TEL [phone] NAME DWO-WETLANDS P 3