20081798 Ver 1_Scoping Comments_20050418

O?OF W A TF9QG
Michael F Easley, Governor
William G Ross Jr, Secretary
North Carolina Department of Environment and Natural Resources
Alan W Klimek, P E Director
Division of Water Quality
April 18, 2005
MEMORANDUM
TO Joel Johnson, NCDOT Project Development Engineer
FROM kYChristma Breen, NC Division of Water Quality, Transportation Permitting Unit
SUBJECT Scopmg Review of Replace Bridge No 82 on SR 1316 over Cypress Creek, B-4587,
Nash County
This office has reviewed the referenced document The Division of Water Quality (DWQ) is responsible
for the issuance of the Section 401 Water Quality Certification for activities that impact Waters of the
US, including wetlands It is our understanding that there are potential impacts to Junsdictional
wetlands and streams The project will have impacts to wetlands, streams, and other surface waters
associated with
Stream Name River Basin Stream Classification WQ Index No.
Cypress Creek Tar-Pamlico C, NSW 28-31-(3)
DWQ offers the following comments on the referenced documents
Project Specific Comments
1 Cypress Creek are class C, NSW waters of the State DWQ is very concerned with sedimentation
and erosion impacts that could result from this project DWQ recommends that highly protective
sedimentation and erosion control BMPs be implemented to reduce the risk of nutrient runoff to
Cypress Creek DWQ requests that road design plans provide treatment of the storm water runoff
through best management practices as detailed in Best Management Practices for the Protection
of Surface Waters Refer to 15A NCAC 2B 0224(2) and 15A NCAC 2H 1006
General Comments Regarding Bridge Replacement Projects
2 After the selection of the preferred alternative and prior to an issuance of the 401 Water Quality
Certification, the NCDOT is respectfully reminded that they will need to demonstrate the
avoidance and mminuzation of impacts to wetlands (and streams) to the maximum extent
practical Based on the impacts described in the document, wetland mitigation will be required
for this project in accordance with Environmental Management Commission's Wetland Rules
115A NCAC 2H 0506 (h)(2) )
In accordance with the Environmental Management Commission's Rules 115A NCAC
2H 0506(b)(6) 1, mitigation will be required for impacts of greater than 150 linear feet to any
single perennial stream In the event that mitigation is required, the mitigation plan should be
designed to replace appropriate lost functions and values In accordance with the Environmental
Management Commission's Rules 11 5A NCAC 2H 0506 (h)(3)}, the NC Ecosystem
Enhancement Program may be available for use as stream mitigation
Transportation Permitting Unit
1650 Mail Service Center, Raleigh, North Carolina 27699 1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone [phone] / FAX [phone] / Internet htto //h2o enr state nc us/ncwetlands
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper
4 The 401 Water Quality Certification application will need to specifically address the proposed
methods for storm water management More specifically, storm water will not be permitted to
discharge directly into the creek Instead, storm water should be designed to drain to a properly
designed storm water detention facility/apparatus to achieve diffuse flow and nutrient treatment
5 For watersheds subject to riparian buffer rules, riparian buffer impacts should be avoided and
minimized to the greatest extent possible Refer to 15A NCAC 2B 0233 for a table of allowable
uses
6 If applicable, DOT should not install the bridge bents in the creek, to the maximum extent
practicable
7 Any new culverts must be countersunk to allow unimpeded fish and other aquatic organisms
passage through the crossing
If foundation test borings are necessary, it should be noted in the document Geotechmcal work
is approved under General 401 Certification Number 3027/Nationwide Permit No 6 for Survey
Activities
9 Sedimentation and erosion control measures sufficient to protect water resources must be
implemented prior to any ground disturbing activities Structures should be maintained regularly,
especially following rainfall events
10 Sediment and erosion control measures should not be placed in wetlands
11 Borrow/waste areas should avoid wetlands to the maximum extent practicable Impacts to
wetlands in borrow/waste areas could precipitate compensatory mitigation
12 While the use of National Wetland Inventory (NWI) maps and soil surveys is a useful office tool,
their inherent inaccuracies require that qualified personnel perform onsite wetland delineations
prior to permit approval
DWQ appreciates the opportunity to provide comments on your project Should you have any questions
or require any additional information, please contact Christina Breen at [phone]
cc Bill Biddlecome, USACE Washington Field Office
Chris Mihtscher, USEPA
Travis Wilson, NCWRC
Gary Jordan, USFWS
Central Files
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C \Correspondence\Scopmg Comments\B-4587