20190378 Ver 1_17BP.9.R.81_HYD_SMPv2.08_(20190318) (Apr 2018)_20190327

Highway North Carolina Department of Transportation �
Stormwater
,,,,,,,,,,, Highway Stormwater Program ;�j�
STORMWATER MANAGEMENT PLAN --
Version 2.08; Released A ril 2018 FOR NCDOT PROJECTS
WBS Element: 17BP.9.R.S1 TIP No.: N/A County(ies): Rowan Page 1 of 1
General Pro'ect Information
WBS Element: 17BP.9.R.81 TIP Number: N/A Project Type: Bridge Replacement Date: 3/19/2019
NCDOT Contact: Galen Cail, PE Contractor / Designer: STV Engineers Inc.
Address: 1020 Birch Ridge Drive Address: 900 West Trade Street, Ste. 715
Raleigh, NC 27610 Charlotte, NC 28202
Phone: [phone] Phone: [phone]
Email: gcail(c�ncdot.gov Email: [e-mail]
CitylTown: Salisbury County(ies): Rowan
River Basin(s): Yadkin-Pee Dee CAMA County? No
Wetlands within Pro'ect Limits?
Project Description
Project Length (lin. miles or feet): 470 Surrounding Land Use: Rural and wooded with houses and open fields
Proposed Project Existing Site
Project Built-Upon Area (ac.) 0.4 ac. 0.2 ac.
Typical Cross Section Description: (Approach) Two 11' lanes with paved shoulder (Approach) Two 10' lanes with grassed shoulder
(Bridge) Two 11' lanes with 7'-5" paved shoulder (Bridge) Two 10' lanes with 1' paved shoulders
Annual Avg Daily Traffic (veh/hr/day): Design/Future: 4400 Year: 2025 Existing: 2200 Year: 2013
General Project Narrative: The existing single span bridge (1 @40'-8") is being replaced with a proposed 85' long single span box beam (33") and 4.0' caps. The bridge will have a 3% superelevated cross
(Description of Minimization of Water slope with 11' lanes and 7'-5" paved shoulders, 36-10" clear width and 39' out to out. The existing jurisdictional stream in the SW quadrant is being relocated around the
Quality Impacts) proposed end bent. The drainage outlet that picks up bridge runoff is a traffic bearing two-grate inlet and is located at the beginning of the bridge. This drainage system outfalls
into the proposed relocated channel and the outfall has a riprap pad to dissipate energy of the flow coming down a steep slope. The existing bridge will be removed. Minor ditch
relocations have been designed in the N-W and S-E qudrants. The ditches will be lined with matting to mitigate erosion and will eventually outfall to the stream bank where
stabilization has been proposed throughout the length of the bridge on both banks.
Waterbody Information
Surface Water Body (1): Crane Creek NCDWR Stream Index No.: 12-115-(2)
NCDWR Surface Water Classification for Water Body Primary Classification: Class C
Supplemental Classification: None
Other Stream Classification: None
Impairments: None
Aquatic T&E Species? No Comments:
NRTR Stream ID: Buffer Rules in Effect: N/A
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? (If yes, provide justification in the General Project Narrative) (If yes, describe in the General Project Narrative; if no, justify in the
If es, rovide 'ustification in the General Pro'ect Narrative General Project Narrative)