20190771 Ver 1_B-5806_HYD_SMP_20190610

North Carolina Department of Transportation .° °,
Highway Stormwater Program
STORMWATER MANAGEMENT PLAN
(Version 2.08; Released April 2018) FOR NCDOT PROJECTS
WBS Element: 17BP.14.R.152 TIP No.: B-5806 County(ies): Union Page 1 of 1
General Project Information
WBS Element:
17BP.14.R.152 ITIP Number: B-5806 Project Type: Bridge Replacement Date: 2/1/2019
NCDOT Contact:
Marc Shown
Contractor / Desi ner:
STV Engineers Inc. / Shirshant Sharma
Address:
1020 Birch Ridge Drive
Raleigh, NC 27610
Address:
900 West Trade Street, Ste. 715
Charlotte, NC 28202
Phone:
919 707-6751
Phone:
704 816-2556
Email:
[e-mail]
Email:
[e-mail]
City/Town:
Monroe
Count Iles):
Union
River Basin(s):
Yadkin -Pee Dee
CAMA County?
No
Wetlands within Project Limits?
No
Project Description
Project Length (lin. miles or feet):
0.12 Surrounding Land Use: lWooded
Proposed Project
Existing Site
Project Built -Upon Area ac.
0.36 ac.
0.28 ac.
Typical Cross Section Description:
Bridge : Two 10' lanes, 3'-11" paved shoulders
Approach: Two 10' lanes, variable paved shoulders
Bridge: Two 9' lanes, 3' shoulders
Approach: Two 9' lanes, 5' unpaved shoulders
Annual Avg Daily Traffic (veh/hr/day):
Design/Future: 340 Year: 2025
Existing: 170 Year: 2012
General Project Narrative:
(Description of Minimization of Water
Quality Impacts)
The existing 91' triple -span bridge over Lanes Creek on SR 2111 (Belk Mill Rd) is being replaced with a 100' (39" box beam) single span bridge. The bridge will have 1.5:1
sloping abutments with 4' end bent caps. The bridge will be normal crown at 2% with 10' travel lanes and 3'-11" shoulders, 27"-10" clear width and 30'-0" OTO width. The
existing bridge structure will be removed. Overall drainage patterns will be maintained. There are roadside ditches that flow towards the bridge on both sides of the structure.
The proposed design will interfere with existing ditches flow patterns. Proposed ditches will be used to maintain flow to the bridge. On the begin side of the bridge, two traffic
bearing grated drop inlet with double frame and grates (2GI) was placed on the right side of the roadway in the shoulder berm gutter to pick up runoff from the bridge. Class-ll rip
rap abutment protection around both abutments is being proposed for abutment protection. Deck drains are not needed. No dissipator pads were used because the Class-ll rip
rap will prevent erosion and dissipate flow.
Waterbody Information
Surface Water Body 1 : Lanes Creek
NCDWR Stream Index No.:
13-17-40-(1)
NCDWR Surface Water Classification for Water Body
Primary Classification:
Water Supply V (WS-V)
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?
iYes
I Deck Drains Discharge Over Buffer? INo
Dissipator Pads Provided in Buffer? INo
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
General Project Narrative)
L. (If yes, provide justification in the General Project Narrative) I