20180220 Ver 1_B-5667_HYD_SMPv2.07_(20170301) (Oct 2016)_20180213_20180215

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,,,,.,_.. Highway Stormwater Program �;-
STORMWATER MANAGEMENT PLAN ---
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: 45619.3.1 TIP No.: B-5667 Count ies : Johnston Pa e 1 of 2
General Project Information
WBS Element: 45619.3.1 TIP Number: B-5667 Pro'ect T pe: Brid e Re lacement Date: 3/1/2017
NCDOT Contact: Chad Coggins Contractor 1 Designer: SEPI Engineering and Construction, Inc.
Address: 509 Ward Blvd. Address: 1025 Wade Avenue
PO Box 3165 Raleigh, NC 27605
Wilson, NC 27895
Phone: [phone] Phone: [phone]
Email: tcco ins ncdot. ov Email: ahowell se ien ineerin .com
Cit /Town: Near Kenl , NC Count ies): Johnston
River Basin s: Neuse CAMA County? No
Wetlands within Project Limits? Yes
Pro'ect Descri tion
Pro'ect Len th lin. miles or feet : 076 miles Surroundin Land Use: Rural, Agricultural
Pro osed Pro'ect Existin Site
Pro'ect Built-Upon Area ac. 0.8 ac. 0.7 ac.
Typical Cross Section Description: 2@ 10' Travel Lanes with Minimal Existing Grass Shoulders 2@ 11' Travel Lanes with 3' Grassed Shoulders
Annual Avg Daily Traffic (vehlhrlday): Desi n/Future: 500 Year: 2025 Existin : 150 Year: 2016
General Project Narrative: Bridge to be replaced on existing alignment. Minimum bridge length used to comply with alI FEMA regulations and maintain acceptable setbacks from existing jurisdictional lines.
(Description of Minimization of Water No deck drains required on bridge. Stormwater will be discharged outside of buffer to a point sufficient to provide treatment of bridge impervious area. No ditches proposed
Quality Impacts) through wetlands.
Waterbod Information
Surface Water Body (1): Little Buffalo Creek NCDWR Stream Index No.: 27-57-17
NCDWR Surface Water Classification for Water Body Primar Classification: Class C
Su lemental Classification: Nutrient Sensitive Waters NSW
Other Stream Classification: None
Im airments: None
Aquatic T8�E Species? No Comments: None noted.
NRTR Stream ID: N/A Buffer Rules in Effect: Neuse
Pro'ect Includes Brid e Spannin Water Bod ? Yes Deck Drains Dischar e Over Buffer? No Dissipator Pads Provided in Buffer? N/A
Deck Drains Dischar e Over Water Bod ? 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)