20190396 Ver 1_SF030234_HYD_SMPv2.07_20180329(Oct 2016)_20190510

(Version 2.07; Released October 2016)
North Carolina Department of Transportation
Highway Stormwater Program =�
STORMWATER MANAGEMENT PLAN
FOR NCDOT PROJECTS
WBS Element: 17BP.10.R.128 TIP No.: SF-030234 County(ies): Anson Page 1 of 2
General Project Information
WBS Element:
17BP.10.R.128 ITIP Number: SF-030234 Project Type: Bridge Replacement Date: 3/29/2018
NCDOT Contact:
Marc Shown
Contractor / Desi ner:
STV Engineers Inc. / Shirshant Sharma
Address:
1020 Birch Ridge Drive
Raleight, NC 27610
Address:
900 West Trade Street, Ste. 715
Charlotte, NC 28202
Phone:
919 707-6751
Phone:
704 816-2556
Email:
mshown ncdot. ov
Email:
[e-mail]
City/Town:
Ansonville
Count ies :
Anson
River Basin(s):
Yadkin -Pee Dee
ICAMA County?
No
Wetlands within Project Limits?
No
Project De tion
Project Length (lin. miles or feet):
0.09 Surrounding Land Use: IRural, wooded, agricultural
Proposed Project
Existing Site
Project Built -Upon Area ac.
0.2 ac.
0.2 ac.
Typical Cross Section Description:
Roadway: Two 10' lanes, grass shoulders
Bridge: Two 10' lanes, no shoulders
Approach: Two 7.5' lanes, grass shoulders
Annual Avg Daily Traffic (veh/hr/day):
Design/Future: 240 Year: 2025
Existing: 120 Year: 2012
General Project Narrative:
(Description of Minimization of Water
Quality Impacts)
The existing single span 16'-4" bridge over Cabbage Branch on SR 1637 (Jack's Branch Rd) is being replaced with 2 - 12' x 5' reinforced concrete box culverts, with one culvert
being buried V (sill) and the other 2' (sill) for low flow and high flow, respectively. The culvert bottom will be filled with native streambed material. The proposed roadway will be
normal crowned at 2.0% with 10' travel lanes and 12' grass shoulders. The existing bridge structure will be removed. Overall drainage patterns will be maintained. There are
roadside ditches that flow towards the culvert on either side of the structure; however with the exception of the end culvert right side ditch, the proposed design will not encroach
on the existing ditches. The undisturbed existing ditches will be maintained. A proposed ditch was designed to channel flow around the culvert and down to the stream on the
end culvert right side. Pump around operation will be used to dewater work area.
Waterbody Information
Surface Water Body 1 : Cabbage Branch
NCDWR Stream Index No.:
13-20-14
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?
INo
I Deck Drains Discharge Over Buffer? I N/A
Dissipator Pads Provided in Buffer? N/A
Deck Drains Discharge Over Water Body?
I N/A
(If yes, provide justification in the General Project Narrative)
(If yes, describe in the General Project Narrative; if no, justify in the
General Project Narrative)
(If yes, provide justification in the General Project Narrative) I