20170854 Ver 1_SW Plan_20170711

HtF;hWc'�y North Carolina Department of Transportation ���—,
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STORMWATER MANAGEMENT PLAN �`"'���
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: 45620.3.1 TIP No.: B-5665 County(ies): Halifax Page 1 of 1
General Project Information
WBS Element: 45620.3.1 TIP Number: B-5665 Project T pe: Bridge Replacement Date: 7/7/2017
NCDOT Contact: ANDY JORDAN, P.E. Contractor / Designer: JUSTIN DAVENPORT, E.I.
Address: HYDRAULICS UNIT Address: MOFFATT & NICHOL
1020 BIRCH RIDGE RD 4700 FALLS OF NEUSE RD, SUITE 300
RALEIGH, NC 27610 RALEIGH, NC 27609
Phone: [phone] P hone: 919-781-4626
Email: a'ordan ncdot. ov Email: 'daven ort moffattnichol.com
Cit ITown: Littleton Count ies : Halifax
River Basin s: Tar-Pamlico CAMA County? No
Wetlands within Project Limits? Yes
Pro'ect Description
Pro'ect Len th lin. miles or feet : 021 Surroundin Land Use: Forested, Rural
Proposed Pro'ect Existin Site
Pro'ect Built-Upon Area ac. 0.6 ac. 0.6 ac.
TypIC81 CI'OSS SBCYIOII D@SCI'Ipt1011: THE PROPOSED ROADWAY IS A TWO-WAY A�IGNMENT W ITH 10' LANE, 3.0' SHOULDERS, AND THE EXISTING ROADWAY IS A 13' GRAVEL ROAD WITH 3.5' SHOULDERS, AND VARYING SIDE
VARYING SIDE SLOPES BETWEEN 3:1 - 6:1. THE PROPOSED BRIDGE HAS A TWO-WAY ALIGNMENT SLOPES BETWEEN 8:1 - 12:1. THE EXISTING BRIDGE IS A ONE LANE BRIDGE W ITH A CLEAR
WITH 10' TRAVEL LANES AND 3'-11" SHOULDERS. THE PROPOSED BRIDGE HAS A CLEAR ROADWAY ROADWAY W IDTH OF 13.5' AND AN OUT TO OUT OF 15.5'.
OF 27'-10" AND AN OUT TO OUT WIDTH OF 30'.
Annual Avg Daily Traffic (veh/hr/day): Design/Future: 270 Year: 2036 Existin : 270 Year: 2016
General Project Narrative: Project consists of the replacement of Bridge #138 in Halifax County. The existing bridge carries SR 1309 Spruills Bridge Rd over Little Fishing Creek between NC 1521 Odell-
(Description of Minimization of Water Arcola Rd and NC-4. The proposed structure is a 100' one span 39" box beam bridge located approximately 430' upstream of the existing bridge location. There are wetlands
Quality Impacts) located within the project limits.
STORMWATER CONTROLS:
The proposed bridge does not utilize deck drains. Runoff from the bridge roadway and paved shoulders at the bridge approaches drains into inlets. The stormwater is then
diffused at riprap pad outlets prior to discharging into Little Fishing Creek. All proposed ditches will be grassed. Shoulders will be grassed except on the proposed bridge and its
approaches. Bank stabilization is planned to prevent erosion of the streambanks.
Waterbody Information
Surface Water Body (1): Little Fishing Creek NCDWR Stream Index No.: 28-79-25
NCDWR Surface Water Classification for Water Body Primary Classification: Class C
Supplemental Classification: Nutrient Sensitive Waters (NSW)
Other Stream Classification:
Impairments: mercury (Hg)
Aquatic T&E Species? 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)