20191758 Ver 1_SMP v2 01_71_20190116_Dec 2014_20200211

1 lic)jl\vay North Carolina Department of Transportation
StOTri'lbvateT Highway Stormwater Program
STORMWATER MANAGEMENT PLAN
(Version 2.01; Released December 2014) FOR NCDOT PROJECTS
WBS Element: 38416.1.FD2 TIP No.: B-4577 Count ies : Martin Page 1 of 1
General Project Information
WBS Element:
38416.1.FD2 ITIP Number: B-4577 Project Type: Bridge Replacement Date: 1/16/2019
NCDOT Contact:
John Abel
Contractor / Desi ner:
Wetherill Engineering, Inc. / Jim Davis, PE
Address:
Highway Divison 1
113 Airport Drive, Suite 100
Edenton, NC 27932
Address:
1223 Jones Franklin Rd.
Raleigh, NC 27606
Phone:
252482-1861
Phone:
919-851-8077
Email:
label(d).ncdot.00v
Email:
'[e-mail]
City/Town:
Robersonville
Count ies :
Martin
River Basin(s):
Tar -Pamlico
CAMA County?
No
Wetlands within Project Limits?
Yes
Project Description
Project Length (lin. miles or feet):
0.007 mile Surrounding Land Use: Rural; Wooded, Agricultural
Proposed Project
Existing Site
Project Built -Upon Area (ac.)
0.2334 ac.
0.1774 ac.
Typical Cross Section Description:
2 lanes; variable 8.75' to 11' width; 6' grass shoulders (9' with guardrail); guardrail at
bridge approaches; replacement bridge 30'-10 clear width, 33' out to out; roadway ditch
on right side prior to bridge
2 lanes @ 9' width; 3' grass shoulders; roadway ditch on right side prior to bridge
Annual Avg Daily Traffic (veh/hr/day):
Design/Future: Year:
Existing: 1100 Year: 2015
General Project Narrative:
(Description of Minimization of Water
Quality Impacts)
Existing drainage patterns will be maintained. There is an existing roadway ditch on right side that passes through buffer zones. This ditch will have to be replaced through the
buffers Streambank stabilization will be placed on banks at outlet of roadway ditch. Fill slopes will be flattened to 3:1 and will slow velocity of pavement runoff and provide some
stormwater treatment. There will be no deck drains on the bridge. Modified concrete flumes will intercept water from each end of the bridge and discharge into buffer zone 2.
Surface Water Body (1):
Flat amp
NCDWR Stream Index No.:
28-103-2
NCDWR Surface Water Classification for Water Body
Primary Classification:
Class C
Supplemental Classification:
Swamp Waters (Sw)
(NSW
Other Stream Classification:
None
Impairments:
None
Threatened/Endangered Species?
No Comments:
NRTR Stream ID:
Buffer Rules in Effect: Tar -Pamlico
Project Includes Bridge Spanning Water Body?
Yes
I Deck Drains Discharge Over Buffer? I No
Dissi ator Pads Provided in Buffer? I N/A
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)
(If yes, provide justification in the General Project Narrative)