20170179 Ver 1_SMP v2 01_620019_17BP 8 R 89 (form Dec 2014)_20170210

k 11�;11��'<14' North Carolina Department of Transportation ��
SL[�rtl]�YdtPf Highway Stormwater Program
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STORMWATER MANAGEMENT PLAN ��--•
(Version 2.01; Released December 2014) FOR NCDOT PROJECTS
WBS Element: 17BP.8.R.89 TIP No.: 176P.8.R.89 County(ies): Moore Page 1 of 1
General Project Information
WBS Element: 17BP.8.R.89 TIP Number: 176P.8.R.89 Project Type: Bridge Replacement Date: 10/27/2016
NCDOT Contact: W.G. Cail, P.E. Contractor I Designer: Dan Duffield, P.E.
Address: NCDOT Hydraulics Unit Address: Summit Design and Engineering Services
1020 Birch Ridge Drive 100 East Six Forks Road, Suite 300
Ralei h, NC 27609
Phone: [phone] Phone: [phone]
Email: cail ncdot. ov Email: dan.duffield summitde.net
Cit ITown: Foxfire Count ies): Moore
River Basin s: Lumber CAMA County? No
Wetlands within Project Limits? Yes
Pro'ect Description
Pro'ect Len th lin. miles or feet : 1000 lin. Feet Surroundin Land Use: Agriculture
Proposed Pro'ect Existin Site
Pro'ect Buiit-Upon Area ac. 0.76 ac. 0.51 ac.
Typical Cross Section Description: 2 lane road with 12' travel lanes, and 9'-5" shoulder including 6'-5" paved shoulder for 2 lane road with 12' travel lanes and no paved shoulder.
safety. There will be guardrail installed along the road and concrete barrier over the
bridge for safety.
Annual Avg Daily Traffic (veh/hr/day): Design/Future: 3600 Year: 2025 Existin : 1800 Year: 2012
General Project Narrative: The project consists of replacing Bridge 620019 on SR 1112 (Roseland Rd) over Jackson Creek. The existing structure consists of a steel plank deck on 11 lines of W 15X42 I-
(Description of Minimization of Water Beams with a sufficiency rating of 21.85. The proposed structure is a 39-feet wide, 70-feet long single span cored slab bridge. The banks on both sides of the bridge are at a
Quality Impacts) 1.5:1 slope and are stabilzed with CI II riprap. A special lateral V ditch will be constructed in the southeast quadrant of the project which runs along SR 1112 and has
transitioned from a special cut ditch. This ditch follows the lay of the land and the Q2 velocities are kept to 1.0 fps since multiple permanent check dams will be installed in the
ditch as it approaches an existing weland at station 18+28 RT. These check dams will reduce the velocity of water and protect the wetland from erosion. Riprap was also
added to protect and stablize the special cut ditch and special lateral V ditch. Two other road side ditches are locted at the east ends of the project but drain away from the
stream crossing.
Waterbody Information
Surface Water Body (1): Deep Creek NCDWR Stream Index No.:
NCDWR Surface Water Classification for Water Body Primary Classification: Water Supply II (WS-II)
Supplemental Classification: High Quality Waters (HQW)
Other Stream Classification:
Impairments:
ThreatenedlEndangered Species? Comments:
NRTR Stream ID: Buffer Rules in Effect: N/A
Project Includes Bridge Spanning Water Body? Yes Deck Drains Discharge Over Buffer? N/A 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 justification in the General Project Narrative) General Project Narrative)