20171516 Ver 1_SW Plan_20171128

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STORMWATER MANAGEMENT PLAN ~•�::':��'�
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: 17BP.4.R.84 TIP No.: SF-410185 County(ies): Halifax Page 1 of 1
General Project Information
WBS Element: 17BP.4.R.84 TIP Number: SF-410185 Project Type: Bridge Replacement Date: 6/6/2017
NCDOT Contact: Chad Co ins Division Environmental Officer Contractor / Designer: Wetherill En ineerin , Inc.
Address: Highway Division 4 Address: 1223 Jones Franklin Rd.
509 Ward Blvd. Raleigh, NC 27606
Wilson, NC 27895
P hone: 252-237-6164 P hone: 919-851-8077
Email: tcco ins ncdot. ov Email: m rice wetherillen .com
CitylTown: Halifax County(ies): Halifax
River Basin(s): Tar-Pamlico CAMA Count ? No
Wetlands within Project Limits? No
Pro'ect Description
Project Length (lin. miles or feet): 0.08 Surrounding Land Use: Agricultural; wooded
Proposed Pro'ect Existin Site
Pro'ect Built-Upon Area ac. 0.2 ac. 0.2 ac.
Typical Cross Section Description: Two 10 foot Travel Lanes with 3 foot grassed shoulder on each side. Two 9 foot Travel Lanes with 4 foot grassed shoulder on each side.
Annual Avg Daily Traffic (veh/hr/day): Design/Future: Year: Existing: 120 Year: 2017
General Project Narrative: The purpose of the project is to replace Bridge No. 185 on SR 1616 over Marsh Swamp in Halifax County. The existing bridge is 46 feet long. The replacement structure will be
(Description of Minimization of Water a 1@ 30' and a 1@ 55' long bridge, providing a 27.83' clear deck width. The roadway grade of the new structure will be approximately the same as the existing structure.
Quality Impacts) There will be no direct discharge into the stream (i.e. no deck drains on the bridge). The existing bridge had two bents in the stream, while the proposed bridge has one. All
existing stormwater drainage patterns were maintained on the project to the fullest extent. The storm drainage system picking up the bridge deck drainage will be outleted into a
ditch in the southeast quadrant of the bridge. The ditches on the southwest and northeast quadrants were retained and are outside of the existing right of way. New ditches
have to be installed on the northwest, and southeast quadrants since the existing ditches are being filled in by the proposed roadway widening.
Waterbody Information
Surface Water Body (1): Marsh Swamp NCDWR Stream Index No.: 28-79-30-1
NCDWR Surface Water Classification for Water Body Primary Classification: Class C
Supplemental Classification: Swamp Waters (Sw) (NSW)
Other Stream Classification: None
Impairments: None
Aquatic T&E Species? No Comments:
NRTR Stream ID: Buffer Rules in Effect: Tar-Pamlico
Project Includes Bridge Spanning Water Body? Yes Deck Drains Discharge Over Buffer? No Dissipator Pads Provided in Buffer? N/A
Deck Drains Discharge Over Water Body? No (If yes, provide justification in the General Project Narrative) (If yes, describe in the General Project Narrative; if no, justify in the
(If yes, provide justification in the General Project Narrative) General Project Narrative)