20180333 Ver 1_17BP.4.R.86_Wilson_16_SMP_20180308

� �j����� ���, North Carolina Department of Transportation
Sti)1't73tiVrdtC"F Highway Stormwater Program
��
STORMWATER MANAGEMENT PLAN �'-�---•
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: SF-970016 TIP No.: 17BP.4.R.86 County�ies): Wilson Page 1 of 2
General Project Information
WBS Element: SF-970016 TIP Number: 176P.4.R.86 Project T pe: Brid e Replacement Date: 2/19/2018
NCDOT Contact: Paul A. Jordan, PE Contractor I Desi ner: TGS En ineers Ben Hene ar, PE
Address: 1590 Mail Service Center Address: 706 Hillsborough Street
Raleigh, NC 27699-1590 Suite 200
Ralei h, NC 27603
Phone: [phone] Phone: [phone] ext. 123
Email: a'ordan ncdot. ov Email: bhene ar t sen ineers.com
Cit ITown: Stantonsbur Count ies : Wilson
River Basin s: Neuse CAMA Count ? No
Wetlands within Project Limits? Yes
Pro'ect Description
Pro'ect Len th lin. miles or feet : 0.13 Surroundin Land Use: Forest, Cropland, and Rural Residential
Proposed Pro'ect Existin Site
Pro'ect Built-Upon Area ac. 0.4 ac. 0.3 ac.
Typical Cross Section Description: Two 10' paved travel lanes with 3' paved shoulders (5.5' with guardrails). Two 10' paved travel lanes with 3' grassed shoulders.
Annual Avg Daily Traffic (veh/hr/day): Desi n/Future: 310 Year: 2016 Existin : 310 Year: 2016
General Project Narrative: Replacement of Bridge No. 970016 on SR 1632 (Pelt Rd.) over Ivy Swamp in Wilson County in Stantonsburg, NC. The proposed 70' long by 33" wide single-span bridge would
(Description of Minimization of Water replace the existing 53' long by 24' wide three span bridge. The proposed grade will be about 9' above existing ground within the vicinity of the bridge and roughly matching
Quality Impacts) existing ground outside of the bridge.
Bridge No. 970016 is within the Neuse River Drainage Basin and shall adhere to the Neuse Buffer Rules. The proposed bridge will have no direct discharge into Ivy Swamp.
Stormwater runoff from the west approach of the proposed bridge is to flow to two traffic bearing grated inlets on both sides of the roadway where it will be diffused with a riprap
pad at the proposed pipe outlet. All proposed runoff is discharged as far away from the stream and at the lowest velocities as practicable. The proposed deck runoff will outlet
outside of buffers, and grass swales will treat proposed ditches where applicable.
Waterbody Information
Surface Water Body (1): Ivy Swamp NCDWR Stream Index No.: 27-86-10
NCDWR Surface Water Classification for Water Body Primary Classification: Class C
Supplemental Classification: Swamp Waters (Sw) (NSW)
Other Stream Classification:
Impairments: None
Aquatic T&E Species? No Comments:
NRTR Stream ID: N/A Buffer Rules in Effect: Neuse
Project Includes Bridge Spanning Water Body? Yes Deck Drains Discharge Over Buffer? No Dissipator Pads Provided in Buffer? No
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 justifcation in the General Project Narrative) General Project Narrative)

1[s�;k Y�r'7W Nor[h Carolina Department of Transportation �`
5l (�Yt t 14 V�1?PC
� , Highway Stormwater Program ��'�
STORMWATER MANAGEMENT PLAN �`~-
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: SF-970016 TIP No.: 17BP.4.R.86 County�ies): Wilson Page 2 of 2
Swales
Station & Coordinates Surface Base Front Back Dreinage Recommended Actual Longitudinal Rock BMP
Sheet (Road and Non Road Water Width Slope Slope Area Treatm't Length Length Slope Q2 V2 Q10 V10 Checks Associated w/
No. Pro'ects Bod ft H:1 H:1 ac ft ft % cfs f s cfs f s Used Buffer Rules?
5 -L- 14+g7 RT (�)Ivy Swamp 2.0 3.0 3.0 1.6 160 295 3.88°/ 0.9 1.9 1.1 2.0 No Yes
35.59412 / -77.84165
Additional Comments