20121016 Ver 0_Scoping Comments_20111129

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H Sullins
Governor Director
November 29 2011
lu1flu160 " 11"r
To Tim Powers NCDOT Division 7 Bridge Program Manager
From Amy Euliss NC Division of Water Quality Winston Salem Regional Office
Subject Scopmg comments on proposed replacement of Bridge nos 151 (NC 62) 300 (SR 3355) 263
(SR 3330) 238 (SR 1005) 338 (1859) 330 (SR 2321) and 187 (SR 2717) in Guilford County
Reference your correspondence dated November 4 2011 in which you requested comments for the
referenced projects The NCDWQ offers the following comments
Project Specific Comments
De- Freeman
Secretary
Bridge No 151 (NC 62) over Chocolate Creek in Guilford County
1 Chocolate Creek are class C NSW waters of the State NCDWQ is very concerned with sediment
and erosion impacts that could result from this project NCDWQ recommends that highly protective
sediment and erosion control BMPs be implemented to reduce the risk of nutrient runoff to Chocolate
Creek NCDWQ requests that road design plans provide treatment of the storm water runoff through
best management practices as detailed in the most recent version of NCDWQ s Stormwater Best
Management Practices
2 This project is within the Jordan Lake Basin Riparian buffer impacts shall be avoided and minimized
to the greatest extent possible pursuant to 15A NCAC 2B 0267
Bridge No 300 (SR 3355) over a UT to South Prom Creek in Guilford County
1 South Prong Creek and its unnamed tributaries are class B NSW waters of the State NCDWQ is
very concerned with sediment and erosion impacts that could result from this project NCDWQ
recommends that highly protective sediment and erosion control BMPs be implemented to reduce the
risk of nutrient runoff to South Prong Creek and its unnamed tributaries NCDWQ requests that road
design plans provide treatment of the storm water runoff through best management practices as
detailed in the most recent version of NCDWQ s Stormwater Best Management Practices
2 This project is within the Jordan Lake Basin Riparian buffer impacts shall be avoided and minimized
to the greatest extent possible pursuant to 15A NCAC 2B 0267
Bridge No 263 (SR 3330) over Beaver Creek in Guilford County
1 Beaver Creek are class WSIV NSW waters of the State NCDWQ is very concerned with sediment
and erosion impacts that could result from this project NCDWQ recommends that highly protective
sediment and erosion control BMPs be implemented to reduce the risk of nutrient runoff to Beaver
Creek NCDWQ requests that road design plans provide treatment of the storm water runoff through
best management practices as detailed in the most recent version of NCDWQ s Storm-water Best
Management Practices
2 This project is within the Jordan Lake Basin Riparian buffer impacts shall be avoided and minimized
to the greatest extent possible pursuant to 15A NCAC 2B 0267
North Carolina Division of Water Quality Winston Salem Regional Office
Location 585 Waughtown St Winston Salem North Carolina 27107
Phone [phone] FAX [phone] Customer Service 1 877 623 6748
Internet www ncwaterquality org
An Equal Opportunity 1 Affirmative Action Employer
NorthCarohna
Naturally

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Bridge No 238 (SR 1005) over Little Alamance Creek in Guilford County Ik
1 Little Alamance Creek are class WSIV NSW waters of the State NCDWQ is very concerned with
sediment and erosion impacts that could result from this project NCDWQ recommends that highly
protective sediment and erosion control BMPs be implemented to reduce the risk of nutrient runoff to
Little Alamance Creek NCDWQ requests that road design plans provide treatment of the storm
water runoff through best management practices as detailed in the most recent version of NCDWQ s
Stormwater Best Management Practices
2 This project is within the Jordan Lake Basin Riparian buffer impacts shall be avoided and minimized
to the greatest extent possible pursuant to 15A NCAC 2B 0267
Bridge No 338 (SR 1859) over West Fork Deep River in Guilford County
1 This project is within the Randleman Lake Basin Riparian buffer impacts shall be avoided and
minimized to the greatest extent possible pursuant to 15A NCAC 2B 0250
2 West Fork Deep River are class WSIV * 303(d) waters of the State West Fork Deep River is on the
303(d) list for impaired use for aquatic life due to iinpaned biological integrity and the basmwide
plan cites turbidity as a source NCDWQ is very concerned with sediment and erosion impacts that
could result from this project NCDWQ recommends that the most protective sediment and erosion
control BMPs be implemented in accordance with Design Standards to Sensitive Watersheds to
reduce the risk of nutrient runoff to West Fork Deep River NCDWQ requests that road design plans
provide treatment of the storm water runoff through best management practices as detailed in the
most recent version of NCDWQ s Stormwater Best Management Practices
Bridge No 330 (SR 2321) over Mears Fork Creek in Guilford County
1 Mears Fork Creek are class C NSW waters of the State NCDWQ is very concerned with sediment
and erosion impacts that could result from this project NCDWQ recommends that highly protective
sediment and erosion control BMPs be implemented to reduce the risk of nutrient runoff to Mears
Fork Creek NCDWQ requests that road design plans provide treatment of the storm water runoff
through best management practices as detailed in the most recent version of NCDWQ s Stormwater
Best Management Practices
2 This project is within the Jordan Lake Basin Riparian buffer impacts shall be avoided and minimized
to the greatest extent possible pursuant to 15A NCAC 2B 0267
Bridge No 187 (SR 2717) over an unnamed tributary to Reedy Fork Creek in Guilford County
1 Reedy Fork Creek and its unnamed tributaries are class C NSW waters of the State NCDWQ is very
concerned with sediment and erosion impacts that could result from this project NCDWQ
recommends that highly protective sediment and erosion control BMPs be implemented to reduce the
risk of nutrient runoff to Reedy Fork Creek NCDWQ requests that road design plans provide
treatment of the storm water runoff through best management practices as detailed in the most recent
version of NCDWQ s Stormwater Best Management Practices
2 This project is within the Jordan Lake Basin Riparian buffer impacts shall be avoided and minimized
to the greatest extent possible pursuant to 15A NCAC 2B 0267
3 Reedy Fork Creek and its unnamed tributaries are class Class C NSW 303(d) waters of the State
Reedy Fork Creek is on the 303(d) list for impaired use for aquatic life due to impaired biological
integrity NCDWQ is very concerned with sediment and erosion impacts that could result from this
project NCDWQ recommends that the most protective sediment and erosion control BMPs be
implemented in accordance with Design Standards in Sensitive Watersheds to reduce the risk of
nutrient runoff to Reedy Fork Creek NCDWQ requests that road design plans provide treatment of
the storm water runoff through best management practices as detailed in the most recent version of
NCDWQ s Stormwater Best Management Practices
General Project Comments
1 Proposed impacts suggest that these projects will be permitted using a Nationwide 3 from the US
Army Corps of Engineers NCDWQ would like to respectively remind NCDOT that WQC 3687 or
its most recent equivalent will also be required NCDOT shall be in compliance with all of its
applicable conditions

2 DWQ understands that these bridges will be replaced using an off site detour if at anv time these
plans change DWQ shall be contacted to determine if this project shall remain in the Low Impact
Bridge Replacement process
3 DWQ understands that these bridges will be replaced with bridges If this is not the case please
contact DWQ to discuss the projects further
4 Environmental assessment alternatives shall consider design criteria that reduce the impacts to
streams and wetlands from storm water runoff These alternatives shall include road designs that
allow for treatment of the storm water runoff through best management practices as detailed in the
most recent version of NCDWQ Stormwater Best Management Practices such as grassed swales
buffer areas preformed scour holes retention basins etc
Currently proposed impacts will not exceed 150 linear feet of impacts to any single stream However
if at any point in the future the impact totals change then in accordance with the Environmental
Management Commission s Rules { 15A NCAC 2H 0506(h)} mitigation will be required for impacts
of greater than 150 linear feet to any single stream In the event that mitigation is required the
mitigation plan shall be designed to replace appropriate lost functions and values The NC Ecosystem
Enhancement Program may be available for use as stream mitigation
6 NCDWQ is very concerned with sediment and erosion impacts that could result from this project
NCDOT 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
7 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
8 Whenever possible NCDWQ prefers spanning structures Spanning structures usually do not require
work within the stream or grubbing of the streambanks and do not require stream channel
realignment The horizontal and vertical clearances provided by bridges shall allow for human and
wildlife passage beneath the structure Fish passage and navigation by canoeists and boaters shall not
be blocked Bridge supports (bents) shall not be placed in the stream when possible
9 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
NCDWQ s Stormwater Best Management Practices
10 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 concrete shall
not be discharged to surface waters due to the potential for elevated pH and possible aquatic life and
fish kills
11 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 should 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

12 If foundation test borings are necessary it should be noted in the document Geotechnical work is
approved under General 401 Certification Number 3624/Nationwide Permit No 6 for Survey
Activities
13 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
14 All work in or adjacent to stream waters shall be conducted in a dry work area unless otherwise
approved by NCDWQ 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
15 Sediment and erosion control measures shall not be placed in wetlands and streams
16 Borrow /waste areas shall avoid wetlands to the maximum extent practical Impacts to wetlands in
borrow /waste areas could precipitate compensatory mitigation
17 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
18 Riprap shall not be placed in the active thalweg channel or placed in the streambed in a manner that
precludes aquatic life passage Bioengmeermg boulders or structures should be properly designed
sized and installed n
Thank you for requesting our input at this time NCDOT 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 Amy Euliss at [phone]
cc Andy Williams US Army Corps of Engineers Raleigh Field Office e copy only
Jerry Parker Division 7 Environmental Officer
Wetlands /401 Transportation Permitting Unit
File Copy