Bridge Removal on SR 2416

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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild P E Dee Freeman
Governor Director Secretary
July 19 2012
MEMORANDUM
TO Kearston Comegys Coordinator Abandonments
FROM Alan Johnson NC Division of Water Quality Mooresville Office e
SUBJECT Scoping Review of Proposed Bridge Removal (SR 2416), Docket No AB 290, Gaston County
In reply to your correspondence dated May 29 2012 in which you requested comments for the above referenced projects
the NC Division of Water Quality (DWQ) offers the following comments
Based on a review of the USGS topo map the proposed removal is for the bridge spanning Crowders Creek Class C
Waters It is suggested that a proper site visitlwetland delineation be conducted at the proposed project area to
ensure no other impacts may occur
2 If no impacts to waters of the state are proposed no 401 Water Quality Certification is required However DWQ s
certification is dependent on the US ACOE permit requirements
DWQ is very concerned with sediment and erosion impacts that could result from this project Norfolk Southern
shall address these concerns by describing the potential impacts that may occur to the aquatic environments and any
mitigating factors that would reduce the impacts
4 No discharge of bridge material into surface waters is allowed unless otherwise authorized by the US ACOE Strict
adherence to the Corps of Engineers guidelines for bridge demolition will be a condition of the 401 Water Quality
Certification if required
5 All work in or adjacent to stream waters shall be conducted in a dry work area unless otherwise approved by NC
DWQ
6 Upon removal of the bridge the stream shall be stabilized utilizing soft stabilization measures and returned to it
dimension pattern and profile as practicable
If temporary access roads or detours are constructed the site shall be graded to its preconstruction contours and
elevations Disturbed areas shall be seeded or mulched to stabilize the soil and appropriate native woody species
shall be planted When using temporary structures the area shall be cleared but not grubbed Clearing the area with
chain saws mowers bush hogs or other mechanized equipment and leaving the stumps and root mat intact allows
the area to re vegetate naturally and minimizes soil disturbance
Transportation and Permitting Unit
1650 Mail Service Center Raleigh North Carolina 27699 1617
Location 512 N Salisbury St Raleigh North Carolina 27604
Phone 919 807 o3001 FAX 91 M07 64921 Customer Service 1877-623 6748
Internet www ncwaterouality org
An qual opportunity Afrrmative Action Employer
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8 Sediment and erosion control measures sufficient to protect water resources must be implemented and maintained in
accordance with the most recent version of North Carolina Sediment and Erosion Control Planning and Design
Manual and the most recent version of NCS000250
Approved BMP measures from the most current version of NCDOT Construction and Maintenance Activities
manual such as sandbags rock berms cofferdams and other diversion structures should be used to prevent
excavation in flowing water
10 Heavy equipment shall be operated from the bank rather than in stream channels in order to minimize sedimentation
and reduce the likelihood of introducing other pollutants into streams This equipment shall be inspected daily and
maintained to prevent contamination of surface waters from leaking fuels lubricants hydraulic fluids or other toxic
materials
Thank you for requesting our input at this time If you have any questions or require additional information please
contact David Wainwright at [phone]
cc Liz Hair US Arm) Corps of Engineers Asheville Field Office
Sonia Corrillo Transportation Unit Wetlands