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North Carolina Department of Transportation
Highway Stormwater Program
STORMWATER MANAGEMENT PLAN
(Version 2.01; Released December 2014)FOR NCDOT PROJECTS
WBS Element:17BP.4.R.55TIP No.:SF410030County(ies):Halifax Page 1of 1
General Project Information
WBS Element:17BP.4.R.55TIP Number:SF410030Project Type:Bridge ReplacementDate:3/18/2015
NCDOT Contact:Chad CogginsContractor / Designer:Wetherill Engineering
Address:Address:
Highway Division 4559 Jones Franklin Road
509 Ward Blvd., P0 BOX 3165Suite 164
Wilson, NC 27895Raleigh, NC 27606
Phone:(252) 237-6164Phone:919-851-8077
Email:ccoggins@ncdot.govEmail:agamber@wetherilleng.com
City/Town:County(ies):Halifax
River Basin(s): Tar-PamlicoCAMA County?No
Yes
Wetlands within Project Limits?
Project Description
Rural
Project Length (lin. miles or feet): 0.134 milesSurrounding Land Use:
Proposed ProjectExisting Site
Project Built-Upon Area (ac.)0.5ac.0.4ac.
Typical Cross Section Description: 2 12' paved lanes with 6' grass shoulders. At guardrail, used 9' shoulders with pavement 2 12' paved lanes with 1' paved shoulders
extending to guardrail.
Annual Avg Daily Traffic (veh/hr/day):
Design/Future:Year:Existing:Year:7602013
General Project Narrative:The purpose of this project is to replace the substandard bridge #30 on NC481 . The new bridge will be 140' in length and is comparable to the existing bridge
length. The
center span of the new bridge will be 70' in length and will completely span the water. There will be no bridge piers in the water or deck drains over water surface or within
(Description of Minimization of Water
Buffer Zone 1. Deck drains were required over Buffer Zone 2 to maintian the allowable spread. The roadway approach work has been kept to the minimum length required for
Quality Impacts)
grade tie-in. Existing drainage flow patterns will be maintained.
Waterbody Information
Surface Water Body (1): NCDWR Stream Index No.:
Rocky Swamp28-79-28-(0.7)
Primary Classification: Water Supply IV (WS-IV)
NCDWR Surface Water Classification for Water Body
Supplemental Classification: Nutrient Sensitive Waters (NSW)
Other Stream Classification:
Impairments:None
Yes
Threatened/Endangered Species?Comments:Dwarf Wedge Mussel U/S of Bridge
NRTR Stream ID:Buffer Rules in Effect:Tar-Pamlico
Project Includes Bridge Spanning Water Body?Deck Drains DiYesYesscharge Over Buffer?Dissipator Pads Provided in Buffer?No
(If yes, provide justification in the General Project Narrative)(If yes, describe in the General Project Narrative; if no, justify in the
Deck Drains Discharge Over Water Body?No
General Project Narrative)
(If yes, provide justification in the General Project Narrative)
WETLAND PERMIT IMPACT SUMMARY
WETLAND IMPACTSSURFACE WATER IMPACTS
Hand
Existing Existing
PermanentTemp. ExcavationMechanized ClearingPermanent Temp. ChannelChannelNatural
SiteStationStructureFill InFill Inin Clearingin SW SWImpactsImpactsStream
No.(From/To)Size / TypeWetlandsWetlands Wetlandsin Wetlands WetlandsimpactsimpactsPermanentTemp.Design
(ac)(ac)(ac)(ac)(ac)(ac)(ac)(ft)(ft)(ft)
113+20 to 15+85Bridge< 0.01 0.02< 0.01 < 0.01 47
TOTALS*:< 0.01 0.02< 0.01 < 0.010470
*Rounded totals are sum of actual impacts
NOTES:
ALL TEMPORORY IMPACTS ON THE EAST END ARE CONTINGENT ON THE AREA REQUIRED TO INSTALL EASTERN INTERIOR BENT.
NC DEPARTMENT OF TRANSPORTATION
DIVISION OF HIGHWAYS
5/11/2015
Halifax County
17BP.4.R.55 (SF-410030)
Brg #30 over Rocky Swamp on NC 481
SHEET 6OF 6
Revised 2013 10 24
BUFFER IMPACTS SUMMARY
IMPACT
BUFFER
REPLACEMENT
TYPEALLOWABLEMITIGABLE
ZONE 1ZONE 2TOTALZONE 1ZONE 2TOTALZONE 1ZONE 2
STRUCTURE SIZE / STATION
ROADPARALLEL
22222222
BRIDGE)(ft)(ft)(ft)(ft)(ft)(ft)(ft)
(ft
SITE NO.TYPE(FROM/TO)CROSSINGIMPACT
1 @ 45';1 @ 70';
1 @ 25' 24" Cored
Slab Bridge
113+14 to 14+54X444319366379
1 @ 45';1 @ 70';1 @
25' 24" Cored Slab 12+50 to 13+14 and
Bridge14+54 to 15+10
X26413841648
TOTAL:
470733208027
N.C. DEPT. OF TRANSPORTATION
DIVISION OF HIGHWAYS
HALIFAX COUNTY
PROJECT: 17BP.4.R.55 (SF-410030)
Brg # 30 over Rocky Swamp on NC 481
4/15/2015
SHEET 3 OF 4
Rev. May 2006
WETLANDS IN BUFFER IMPACTS SUMMARY
WETLANDS IN
BUFFERS
ZONE 1ZONE 2
STATION
22
SITE NO.(FROM/TO)
(ft)(ft)
113+40 to 14+60778170
TOTAL:
778170
N.C. DEPT. OF TRANSPORTATION
DIVISION OF HIGHWAYS
HALIFAX COUNTY
PROJECT: 17BP.4.R.55 (SF-410030)
Brg #30 over Rocky Swamp on NC 481
3/21/2015
SHEET 4 OF 4
Rev. Jan 2009