20181642 Ver 1_Wayne 96 SMP (2)_20181203

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STORMWRFER MANAGEM�NI' PIAM
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Gennr�al. Pro�act IO�ifornsatNon
WBS Elcmr.nS: ,'�3P : N vp3 TVP NGii�ibor: E-3N2_� Hrs� ecl 7 �o� L;.3� a f-�.�nl, �_m�ts�t Rate: 1i727i2019
' INCDOT Con[act: Chad •��oq. ins Contractor/ Desi ner: I<irnVev-I-iom �
Adtlrass: 509 Ward Blvd Address: .q2� Fayetleville Street
PO Box 3165 :Suite #600
Wilson NC. 27895 I4alei h. NC.27601
Phone:[phone] Phone:.l'919)653-5623
EmaiL•� tccoaoins ncdot aov Email: vance.blanloa(�kimlev-horn.com
��it lTown: Grantham Caunt ies : Wa ne
1River Basin sl: Neuse CAMA Gount 9 No
�1JVetlands within Project Limits? res
Pra act pascrl Uvn
�ro-ect I�en �ih din. mllus ar feet : 0 12 Surroundin Land Use: jRurel
� Pro oaer! Pro ect €xls4(n 81ta
Pro'ect Built-U on Area ac. 0 4 ac 0 3 ac
Typical Cross Section Descrlption: 2� 13' w�ide lanss ��ilh 3' paveC shoueders 3e�➢ 3�.r sitle slopes Number of Spans� 3
Number of Spans�. 2 Span Arzangement 17' 9"-17'-17' 9"
Span ArrangemenP� 70'-30' Britlga Length�. 52' �"
Bndge Lenglh = 100'
Annual Avg �4aily Trat€ic (uehlhrldayj: Ges:ryn+fut��e 1��Uti) Y'� s�e:�r ZJ39 r�.isUn. 73'0[J V)f] v war �U'I'�
General projec[ Narrative: The bntlge replacement on SR 1006 (Granlham School Rd) wnveys Thoroughfare Swamp from Wast io East and ultimately dradns into the Neuse ftiver The existing bridge ,
��Description of Minimization of Water overall length (OAL) = 52' 6" entl width 25 33' wlll be replaced wi[h a bridge having an OAL = 100' and width = 33' The new bridge is wider than tha existing bridge to provitle
�Quality Impacts) the requirad shoulders and lane width necessary for roatlway and tlrainage The proposed bridge and roadway improvaments minimized the existing overtopping condition and
mainlain a minimal transition behveen existing antl new roadway
Runoff from the bridge is captured on the low side of the bridge in shoulder berm guller and modified conaete flume The motlified concrele flume is designed to outfall (wilh rip
rap ou[let proteclion) outside of buffer zones 1 and 2 The existing flat vegetated floodplain will treat the minimal increase in impervious area from bridge widening
Thoroughfare Swamp is a FEMA stream that is shown on Flootl Insurance Rate Map (FIRM) panel 370254-2554-K, dated 06/20/2018 A hydreulic analysis on Thoroughfare
�Swamp was performed to assess [he potential flood level increases associated wilh this projed Based on lhis anatysis, the proposed britlge replacemen[ projecl was shown ta
decrease by 0 tft in Ihe base flood year fevel along the sludy reach of Thoroughfare Swamp
1Naterh�od InlormeLlan
;Surface Water Bod 11: ?'horauohPare Swamp NCDWR Straam Index No_: 2?-5a-5-;o 3;
INCDWR Surtace Water ClassiTcation for Water Body Primarv Classification� Ciass C _
Su lemental Classification; Nutnent S�nsitive Waters nESWi
�Dther Stream Classification: �
Im airments: None
��A uau� i�,E S ec4es7 No Comments:
OVRTR Stream ID: 19uffer Rules in Effect: Neuse
1°ra ect Includes Brid e S annin Water Bad ? Yes , Deck Drains Diecherae Over 6uffer7 IVo Dissi ator Pads Provided in Buffer7 No
I�eck Dreins Discharqe Over Water Bod ? No Qf yes, provide justification in the General Projed Narrative) (If yes, tlescrlbe in the General Project Narrative�. if no, justity in the
flf ves, orovide jus[ificalion in the General Project Narrativel General Project Narretive)