20170437 Ver 1_040062_HYD_SMPv2.07_(20161118) (Oct 2016)_20170413

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I�II�;hWc1y North Carolina Department of Transportation
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STORMWATER MANAGEMENT PLAN �`"'��
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: 17BP.11.R.126 TIP No.: SF-040062 County(ies): Ashe Page 1 of 1
General Project Information
WBS Element: 17BP.11.R.126 TIP Number: SF-040062 Project Type: Bridge Replacement Date: 11/18/2016
NCDOT Contact: Marc Shown, PE Contractor / Designer: RK&K Engineers - Corey Cavalier, PE
Address: 1590 Mail Service Center Address: g00 Ridgefield Drive
Raleigh, NC 27699-1590 Suite 350
Ralei h, NC 27609
Phone: [phone] Phone: [phone]
Email: mshown ncdot. ov Email: [e-mail]
Cit ITown: N/A Count ies : Ashe
River Basin s: New CAMA County? No
Wetlands within Project Limits? No
Pro'ect Description
Pro'ect Len th lin. miles or feet : 0.06 mi Surroundin Land Use: Rural
Proposed Pro'ect Existin Site
Pro'ect Built-Upon Area ac. 02 ac. 0.2 ac.
Typical Cross Section Description: 2-lanes at 10'-0" each with 3'-0" paved shoulder 2-lanes at 9'-0" each with 6'-0" to 8'-0" grassed shoulder
Annual Avg Daily Traffic (veh/hr/day): Desi n/Future: 510 Year: 2012 Existin : 510 Year: 2012
General Project Narrative: This project replaces existing BR #040062, 3@30' spans prestressed concrete channels w/ timber posts, 90'-0" long, 30'-0" wide out to out. The proposed bridge will be a 1@
(Description of Minimization of Water 70'-0", 1@30'-0" and 24" Cored Slab, 27' wide out to out with one Vertical and one Sloped Abutment. Deck drains will be required, but they are not placed above water. Runoff
Quality Impacts) from the bridge will be captured and discharged into a rip rap pad at the toe of fill. There is a slight increase in the impervious area of the project, however there is no significant
increase in the discharge from the roadway runoff.
Waterbody Information
Surface Water Body (1): Little Horse Creek NCDWR Stream Index No.: 10-2-21-8
NCDWR Surface Water Classification for Water Body Primary Classification: Class C
Supplemental Classification: Trout Waters (Tr) o�isia�a��9aeso���ewaie�s�oRw�
Other Stream Classification: None
Impairments: None
Aquatic T&E Species? No Comments:
NRTR Stream ID: Buffer Rules in Effect: N/A
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)