20130449_Scoping Comments_20111110

GA` A�
NC®ENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H Sullins
Governor Director
November 10 2011
MEMORANDUM
TO Pamela Williams NCDOT Priority Project Office
FROM Rob Ridings NC Division of Water Quality Transportation Permitting Unit
SUBJECT Scoping Review of NCDOT s Proposed Design Build Bridge Replacement Projects in
Wake County
In reference to the Division 5 Design Build Bridge Replacement Projects Onsite Reviews conducted
November 9 2011 the NCDWQ offers the following comments
Dee Freeman
Secretary
Bridge
Number
Stream Name
River Basin &
Subbasin
Stream Classifications
Stream Index
Number
237
Neuse River
NEU 02
WS V NSW *303(d) Listed*
27 (36)
485
UT Swift Creek
NEU 02
WS III NSW
2743 5 (1 5)
410
Dutchman s Creek
NEU 02
WS III NSW
2743 45
285
Terrible Creek
NEU 03
B NSW
2743 15 8
467
Walnut Creek
NEU 02
C NSW *303(d) Listed*
2734 (1 7)
67
Bachelor Branch
CPF 05
(Jordan)
WS IV NSW
1641 6 2 (2)
363
Reedy Branch
CPF 05
(Jordan)
WS IV NSW
1641 10 1
338
Kenneth Creek
CPF 07
C
18 16 1 (1)
Protect- Specific Comments
Bridges 485, 410, 285, 67, and 363 These projects impact class NSW waters of the State
NCDWQ is very concerned with sediment and erosion impacts that could result from these projects
NCDWQ recommends that highly protective sediment and erosion control BMPs be implemented
to reduce the risk of nutrient runoff to surface waters and 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
Bridges 237and 467 These projects impact class 303(d) Listed impaired waters of the State
NCDWQ is very concerned with sediment and erosion impacts that could result from these projects
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
these streams and their 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 Stormwater Best Management Practices
Transportation Permitting Unit
1650 Mail Service Center Raleigh North Carolina 27699 1650
Phone [phone]
Internet http llh2o enr state nc us /ncwetlandsl
An Equal Opportunity 1 Affirmative Action Employer
NorthCarohna

6 Bridges 237, 485, 410, 285, and 467 These projects are in the Neuse River Basin Riparian buffer
impacts shall be avoided and minimized to the greatest extent possible pursuant to 15A NCAC
2B 0233
Bridges 67 and 363 These projects are in the Jordan Lake subbasin Riparian buffer impacts shall
be avoided and minimized to the greatest extent possible pursuant to 15A NCAC 2B 0267
General Comments Regarding Bridge Replacement Projects
Bridge deck drains shall not discharge 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 detention basins etc ) before entering the stream Please refer to the most current
version of NCDWQ s Stormwater Best Management Practices
2 If foundation test borings are necessary it shall be noted in the document Geotechnical work is
approved under General 401 Certification Number 3687/Nationwide Permit No 6 for Survey
Activities
If a bridge is being replaced with a hydraulic conveyance other than another bridge NCDWQ
believes the use of a Nationwide Permit may be required Please contact the US Army Corp of
Engineers to determine the required permit(s)
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
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) should not be placed in the stream when possible
6 NCDWQ is very concerned with sediment and erosion impacts that could result from these projects
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
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
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
9 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
10 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 shall be used to prevent excavation in flowing water
11 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
12 In most cases the NCDWQ 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
13 Any anticipated dewatermg or access structures necessary for construction of bridges should be
addressed in the CE It is understood that final designs are not determined at the time the CE is
developed However the CE should discuss the potential for dewatermg and access measures
necessary due to bridge construction
General Comments if Replacing the Bridge with a Culvert
Placement of culverts and other structures in waters streams and wetlands shall be below the
elevation of the streambed by one foot for all culverts with a diameter greater than 48 inches and 20
percent of the culvert diameter for culverts having a diameter less than 48 inches to allow low flow
passage of water and aquatic life Design and placement of culverts and other structures including
temporary erosion control measures shall not be conducted in a manner that may result in dis
equilibrium of wetlands or streambeds or banks adjacent to or upstream and down stream of the
above structures The applicant is required to provide evidence that the equilibrium is being
maintained if requested in writing by NCDWQ If this condition is unable to be met due to bedrock
or other limiting features encountered during construction please contact the NCDWQ for guidance
on how to proceed and to determine whether or not a permit modification will be required
If multiple pipes or barrels are required they shall be designed to mimic natural stream cross section
as closely as possible including pipes or barrels at flood plain elevation floodplain benches and/or
sills may be required where appropriate Widening the stream channel shall be avoided Stream
channel widening at the inlet or outlet end of structures typically decreases water velocity causing
sediment deposition that requires increased maintenance and disrupts aquatic life passage
Riprap shall not be placed in the active thalweg channel or placed in the streambed in a manner that
precludes aquatic life passage Bioengineering boulders or structures shall be properly designed
sized and installed
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 Rob Ridings at 919 807 6403
cc Eric Alsmeyer US Army Corps of Engineers Raleigh Field Office
Chris Murray Division 5 Environmental Officer
Travis Wilson NC Wildlife Resources Commission
File Copy

NORTH CAROLINA DEPARTMENT OF TRANSPORTATION
FIELD SCOPING MEETING WORKSHEET
Design Build Process
WBS No 17BP 5 R 39 Field Scoping Meeting Date
Division 5 Location On site
Route (US /NC /SR) SR2555 County Wake
Project Description Bridge #237 over Neuse River on SR 2555
Tier SUBREGIONAL
Municipality
c
Attpnclppc
Structure No 910237
1 of 4
ll
Name
Phone No
E -mail
Division Bridge
Manager
Division Environmental
Officer
Hydraulics Engineer
Geotechnical
USACE
DENR DWQ
TPMU
TPMU
TPMU
Bridge Management
Structure No 910237
1 of 4
ll

a
Existing Features
Feature Bridged 910237 Bridge #237 over Neuse River on SR 2555
Ex Bridge Clear Deck Width 24 (Ft) Existing Shoulders (Ft )
(Bridge / Culvert) Length 350 (Ft) Deck Width (Out To Out) 28 4
Water Depth 4 (Ft) Height Bed To -Crown 37 (Ft )
Prior Survey Date Posted SV NP TTST
Superstructure Type ST M BM , Substructure Type RC
Span Type 5 - 70
Historic High Water (Elev To The Existing Structure) (Ft)
Sufficiency Rating 434 , DP 25 School Bussing crossings per day
Posted Speed Limit In Project Vicinity (mph / Statutory 55mph)
Detour Off -Site Stage Construction On -site
If Detour is Off -Site Provide Description Of Detour Route
Approximate Length Of Detour? 13( Miles )
Improvements Needed To Road(s) On Detour?
Div Traffic Eng Recommend Off -site detour signing?
Improvements Needed To Bridges On Detour?
Are Bridges On Detour Currently Programmed On Tip?
Are There EMS Or Business Access Issues? No
Are There Any Railroad Crossings On Detour?
Should Work Zone Pedestrian Access Be Maintained During Construction?
Overhead Utility Lines In Conflict
Power Transmission Lines In Conflict
Telephone In Conflict
Cable Lines In Conflict
Fiber Optic In Conflict
Water In Conflict
(Ft )
Sewer In Conflict
Natural Gas In Conflict
Other In Conflict
Based On The Past History Near This Project Site What Is The Estimated Time Required
To Complete Utility Adjustments — Months
Is There Any Future Utility Construction Anticipated In The Project Area
Is A FEMA Buy -Out Property Being Impacted
Structure No 910237 2 of 4

f Environmental
Wetlands At Site No Comments But linear feet impacts to JD stream
Known Endangered Species Populations In Area? Yes Michaux's sumac, Red cockaded
woodpecker & Dwarf wedgemussel Comments Biological Conclusion for MS & RCW
were NO EFFECT DWM to be determined
Trout County N TVA County N
CAMA County N Primary Nursery Area N
Moratoria If Yes Duration
Permits Required /
Water Quality Classification WS- V,NSW, Buffer 50', Neuse
Will A Coast Guard Permit Be Required? No Drainage Basin Neuse e
Is The Project Site In Or Near Any Of The Following
National Forest No, Wildlife Refuge No,
State County Or Local Park No, Wild And Scenic River No,
Airport No, A Lake For Recreation Of Power Generation ,
Water Supply Reservoir No, Nutrient Sensitive Waters Y ,
Public Use Boat Ramp Cemeteries
Known Or Potential Historic Properties in The Area Historic Archit Survey required N
, Archaeology Survey required S
Is The Bridge Structure Itself Or Any Part Thereof Considered Historic No
Will The Project Impact A Church Community Center Or Other Public Facility?
Is This Project On A Statewide Bicycle Route Or A Local Non - Marked Bicycle Route N
Any Clarification Or Comments On Items Above
Geotechnical
Are There Any Historical And / Or Vibration Sensitive Structures Near By Comments
Are There Any Known Landfills And / Or Geo- environmental Hazard Sites At Or Within
Close Proximity To The Project Site - - -- - -- Comments
Are Any Impacts Anticipated To Natural Springs Or Artesian Wells Comments
Possible Foundation Type
Structure No 910237 3 of

r
Hydraulics
Will This Project Require FEMA Approval? Y (MOA )
Will This Project Require A State Stormwater Permit? N
Is There Unusual Scour Potential? Is Protection Needed?
Are Banks Stable? Is Protection Needed?
Does Stream Carry Appreciable Amount Of Large Debris?
Will The Placement Of Bents In The Water Be Allowed
Drop Inlets Flumes or Funnels?
Items To Be Discussed / Resolved At FSM By Attendees
Off Site Detour ❑ Stage ❑ New Location ❑
Type Of Environmental Document
Low Impact Data Spreadsheet ❑ Minimum Criteria Rule /MC Checklist ❑
Other
Superstructure Type (office estimate Bridge 360 )
Number Of Spans
Length Of Spans
ADT 3200 /BIR NHS 0 Tier SUBREGIONAL Func Class LOCAL
Bridge Min Clear Deck width Recommended by Div
Roadway lane width 'with ` shoulders
Will Railroad Involvement Be Required
R/W by Others DBT will be responsible for R/W acquisition and coordination of utility issues
Permits NCDOT will submit permits as prepared by DB Team
Method of Clearing
Truck Percentage _ % Reasonable Safe Speed mph
Liquidated damages will be imposed after days of closure Amt $ per day
CEI to be done by NCDOT or others
Salvageable materials
Removal of remnant abutments /piers
Additional Comments
Any priority in bridge construction sequencing?
Approach slab on skew or perpendicular?
Structure No 910237 4 of