20150955 Ver 1_Complete File_20070821

Department of Environment and Natural Resources
Project Review Form
Project Number: 08-0060 County: Pender Date Received: 08/2112007
Due Date: 09/17/2007
Project Description: Replace bridge No. 16 on NC 50-210 over the Intracoastal waterway in Pender County. TIP No.
B-4929
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Regional Office
Asheville
Fayetteville
Mooresville
Raleigh
Washington
Wilmington
Winston-Salem
Office Area
In-House Review
Soil & Water // Marine Fisheries
V Coastal Management
Wildlife Water Resources
Environmental Health
v/ Wildlife - DOT Solid Waste Mgmt
Forest Resources Radiation Protection
Land Resources Other
Parks.& Recreation
Water Quality
Water Quality - DOT
Air Quality
Manager Sign-Off/Region:
I Air
Water
Groundwater
Land Quality Engineer
-House Reviewer/Agency:
Response (check all applicable)
No objection to project as proposed. No Comment
Insufficient information to complete review s- Other (specify or attach comments)
If you have any questions, please contact: .1
Melba McGee, Environmental Coordinator at [e-mail]
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?F W ATFq Michael F. Easley, Governor
tJ Q William G. Ross Jr., Secretary
G North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
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September 14, 2007
MEMORANDUM
TO: Melba MCGee, Environmental Coordinator
FROM: David Wainwright, NC Division of Water Quality, Office
SUBJECT: Scoping Review of NCDOT's Proposed Bridge Replacement Projects: B- 4929
(Fender County),
In reply to your correspondence dated August 16, 2007 (received September 6, 2007) in which you
requested comments for the above referenced projects, the NC Division of Water Quality offers the
following comments:
Project-Specific Comments
1. Review of the project reveals the presence of surface waters classified as SA;HQW; High
Quality Waters of the State in the project study area. This is one of the highest
classifications for water quality. Pursuant to 15A NCAC 2H .1006: and 15A NCAC 2B
.0224, NC DOT will be required to obtain a State Stormwater Permit prior to construction.
General Comments Regarding Bridge Replacement Projects
2. DWQ is very concerned with sediment and erosion impacts that could result from this
project. NC DOT 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.
If foundation test borings are necessary, it shall be noted in the document. Geotechnical work
is approved under General 401 Certification Number 3624/Nationwide Permit No. 6 for
Survey Activities.
4. If the old bridge is removed, 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.
5. Bridge deck drains shall not discharge directly into the stream. Stormwater shall be directed
across the bridge and pre-treated through site-appropriate means (grassed swales, pre-formed
scour holes, vegetated buffers, etc.) before entering the stream. Please refer to the most
current version of NC DWQ Stormwater Best Management Practices.
6. If concrete is used during construction, a dry work area shall be maintained to prevent direct
contact between curing concrete and stream water. Water that inadvertently contacts uncured
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NhCarolina
Transportation Permitting Unit Ndurat'iY
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet: http://h2o.enr.state.nc.us/ncwetlands
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concrete shall not be discharged to surface waters due to the potential for elevated pH and
possible aquatic life and fish kills.
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.
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.
In most cases, the DWQ prefers the replacement of the existing structure at the same location
with road closure. If road closure is not feasible, a temporary detour shall be designed and
located to avoid wetland impacts, minimize the need for clearing and to avoid destabilizing
stream banks. If the structure will be on a new alignment, the old structure shall be removed
and the approach fills removed from the 100-year floodplain. Approach fills shall be
removed and restored to the natural ground elevation. The area shall be stabilized with grass
and planted with native tree species. Tall fescue shall not be used in riparian areas.
Thank you for requesting our input at this time. The DOT is reminded that issuance of a 401 Water
Quality Certification requires that appropriate measures be instituted to ensure that water quality
standards are met and designated uses are not degraded or lost. If you have any questions or
require additional information, please contact David Wainwright at [phone].
cc: Jennifer Frye, US Army Corps of Engineers, Washington Field Office
Chris Militscher, Environmental Protection Agency
Travis Wilson, NC Wildlife Resources Commission
Gary Jordan, US Fish and Wildlife Service
Steve Sollod, Ecosystem Enhancement Program
Ken Averitte, DWQ Fayetteville Regional Office
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