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HomeMy WebLinkAbout20150599 Ver 1_Plans_20150616 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