20190452 Ver 1_SMP Wilson 91_20190410

North Carolina Department of Transportation �-• '�`"�
Fii�i��r�vaV � `.�:.
Highway Stormwater Program ' �"
STORMWATER MANAGEMENT PLAN �'`"':_- � x
{Versian 2.01„ Released December 2014) FDR NC�Oi PROJECTS
WBS Element: T!P No.: 17BP.4.R.94 COCfII ies : Wilson Aa e 1 of 1
General Project InformaUon
WBS Element: TIP Number: 17BP 4.R 94 Pro'ect T e: Brid e Re lacement Date: 2/21l2019
NCDOT Contact: William Cail, P.E. Contractor I Desi ner: Jason Patskoski, PhD, 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: �ason. atskoski summitde.net
Ci ITown: ' Elm Ci Coun ies : Wilson
River Basin s: Tar-Pamlico CAMA Coun ? No
Wetlands within Project Limits? Yes
Pro Descri tion
Pro'ect Len th lin. miles or feet : 0 137 miles Surroundin Land Use: Rural Area with Agricultural or Residential Land Uses
Pro P 'ect F�cistin Site
Pro'ect Built-U on Area ac. 0.42 ac. 0.33 ac.
Typical Cross Section Description: 2 lane road with 10' travel lanes and 6' paved shoulder with total bridge length of 25 ft 2 lane road with 10' travel lanes and no paved shoulder with total bridge length of 31.4
and width of 41 ft ft and width of 25.45 ft
Annual Avg Daily Traffic (vehlhr/day): Desi n/Future: 840 Year: 2025 Existin : 450 Year: 2015
General Project Narrative: State Project 178P.4.R.94 involves the replacement of NCDOT Bridge 970091 on SR 1339 over Town Creek. The proposed bridge will maintain the existing level of service.
(Description of Minimization of Water The proposed roadway fill slopes are 3:1 and are grassy. There are three proposed lateral V ditches with grassy 3:1 side slopes on the left and right sides of the roadway to
Quality Impacts) convey existing drainage patterns and minimize disturbance in the surroundi�g wetlands. There is a single lateral base ditch with grassy 3:1 sideslopes on the right side of the
roadway which transitions into a tail ditch with grassy 3:1 sideslopes outletting to the wetlands. All ditch velocities are non-erosive in buffer zones.
��`�� Wa#er ft�formatian
5urface Water �od (1 : Town Creek NCDWR Stream Index No.: 28-83
NCDWR Surface Water Classification for Water Body Prima Classification: Class C
Su lemental Classification: Nutrient Sensitive Waters (NS
Other Stream Classification: None
Im airments: None
Threatened/Endan ered S ecies? No Comments:
NRTR Stream ID: Town Creek Buffer Rules in Effect: Tar-Pamlico
Pro'ect Includes Brid e S annin Water Bod ? No Deck Drains Dischar e Over Buffer? No Dissi ator Pads Provided in Buffer? No
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)