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STATE OF NORTH CAROLINA
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DEPARTMENT OF TRANSPORTATION
LYNDO TIPPET'
MICHAEL F. EASLEY SECRETARY
GOVERNOR
May 5, 2006
Mr. John Hennessy
NCDENR - DWQ / WETLANDS
1650 Mail Service Center
Raleigh, North Carolina 27699-1650
SUBJECT: Bridge Group No. 59
Dear Mr. Hennessy:
The Project Development and Environmental Analysis Branch is starting the project
development, environmental and engineering studies for the following projects: B-4456, B-4468,
B-4517, B-4519, B-4553, and B-4632. The projects are included in the 2006-2012 North
Carolina Transportation Improvement Program and are scheduled for construction in fiscal
year(s) 2009, 2009, 2009, 2009, 2009, and 2010 (respectively).
The alternatives under consideration at this time for each of these bridge replacement
projects are as follows:
B-4456
Replace in place with offsite detour.
B-4468
Replace in place with onsite detour to the east of the existing bridge.
Replace in place with offsite detour.
B-4517
Replace in place with onsite detour to the south of the existing bridge.
Replace on new. alignment to the south of the existing bridge and maintain traffic on the
existing bridge.
B-4519
Replace in place with offsite detour.
LOCATION:
- PARKER LINCOLN BLDG
MAILING ADDRESS: FAX: TELEPHONE: [phone]--1715522 2
NC DEPARTMENT OF TRANSPORTATION 2728 CAPITOL BLVD- SUITE 168
PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS RALEIGH NC 27604
BRIDGE PROJECT DEVELOPMENT UNIT WEBSITE: yyyyyy.NCDOT.ORG
1551 MAIL SERVICE CENTER
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B-4553
Replace in place with onsite detour on north of the existing bridge.
Replace in place with onsite detour on south of the existing bridge.
B-4632
Replace in place with offsite detour.
Replace on new alignment to the South of the existing bridge and maintain traffic on the
existing bridge.
When available, we will provide you a copy of the Executive Summary of the Natural
Resources Technical Report (NRTR) for each project. At that time, we will solicit information
about these projects to be used in the preparation of federally funded Categorical Exclusions. If
your agency has critical information that can be furnished at this time, please feel free to do so.
If you have any questions concerning any of these projects, please contact Mr. Dennis Pipkin, PE
at 715-5515. Please include the TIP Project Number in all correspondence and comments.
Sincerely, ,
William T. Goodwin, Jr. PE
Bridge Project Development Unit Head
Project Development and Environmental
Analysis Branch
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CATAWBA CO.
NC 16
Replace Bridge No. 49 over
Interstate 40
Catawba County, North Carolina
TIP NO. B-4456
PROJECT VICINITY MAP
NOT TO SCALE FIGURE 1

NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION

NC 16
Replace Bridge No. 49 over
Interstate 40
Catawba Canty, North Caroina
TIP NO. B-4456
NOT TO SCALE RGU E 3
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STATE OF NORTH CAROLINA
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DEPARTWENT OF TRANSPORTATION e
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MICHAEL F. EASLEY LYND'O TIPPETT
GOVERNOR SECRETARY
May 20, 2005
Nicole Thomson
Division of Water Quality
1650 Mail Service Center
Raleigh, NC 27699-1650
SUBJECT: Various-Bridge R lacements
Johnston County, forth Carolina
State Project Nos.:
8.1314001 (B-4555);
8.1314101 (B-4556);
8.2313501 (B-4558);
8.2313601 (B-4559);
WBS Element 337,671.1, F.A. No. BRNHS-70(72)
WBS Element 33768.1.1, F.A. No. BRSTP-50(7)
WBS Element 33769.1.1, F.A. No. BRZ-1330(6)
WBS Element 33770.1.1, F.A. No. BRZ-1330(7)
Dear Ms. Thomson:
The North Carolina Department of Transportation (NCDOT), Project Development and
Environmental Analysis Branch is conducting planning, environmental and engineering
services and preparing a Planning Report/Categorical Exclusion (CE) for the proposed
improvements on each of the above-listed subject projects. As an integral part of these
studies, we are soliciting input from agencies and individuals concerning the potential
impacts of the proposed improvements on any structure or feature within each of the
project areas and the impacts each of these projects may have on the social, economic,
cultural, physical or biological conditions in the area. Attached are location maps for your
information and reference.
Each of the above-listed projects is included in the Draft 2006-2012 Transportation
Improvement Program (TIP). Right-of-way acquisition is scheduled to begin in Fiscal
Year 2007 (B-4555, B-4556, and B- 4559) and 2008 (B-4558) with construction in Fiscal
Year 2008 (B-4556 and B-4559) and 2009 (B-4555 and B-4558). The scope of each of
the projects consists of replacement of the respective bridges. These replacements will
result in safer traffic operations. Rehabilitation of the existing structures does not appear
to be a feasible option due to their ages and deteriorating conditions.
MAILING ADDRESS: LOCATION:
NC DEPARTMENT OF TRANSPORTATION TELEPHONE: [phone] TRANSPORTATION BUILDING
PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS FAX: [phone] SOUTH WILMINGTON STREET
1548 MAIL SERVICE CENTER RALEIGH NC
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MEMORANDUM
June 17, 2005
TO: Colista Freeman, P.E., NCDOT Project Development & Environmental Analysis
FROM: Christina Breen, NC Division of Water Quality, Transportation Permitting Unit
SUBJECT: Scoping Review of NCDOT's proposed bridge replacement projects: B-4555, B-4556, B-
4558, and B-4559
In reply to your correspondence dated May 20, 2005 (received May 31, 2005) in which you requested
comments for the referenced projects, the NC Division of Water Quality has the following comments:
L Project-Specific Comments
B-4556 Bridge over Black Creek, Johnston Co.
Black Creek are class C; NSW watefs 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'reouce the risk of nutrient runoff to Black
Creek. DWQ requests that road design plans provide treatment`bf the storm water runoff through best
management practices as detailed in Best Management Practie'e\ for the Protection of Surface Waters.
Refer to 15A NCAC 2B .0224(2) and 15A NCAC 2H. 1006. This. project is within the Neuse River Basin.
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.
B-4558 Bridge over Stony Fork Creek, Johnston Co.
Stony Fork 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 Stony
Fork 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. This project is within the Neuse
River Basin. 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.
B-4559 Bridge over Black Creek, Johnston Co.
Black 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 Black
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. This project is within the Neuse River Basin.
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.
-None Carolina
aturally
Transportation Permitting Unit N
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet: httpJ/h2o.enr.state.nc.us/ncwetlands
Ivuunaei r. casroy,'auvarnui
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
An Equal Opportunity/Affirmative Action Employer-500/6 Recycled/10% Post Consumer Paper
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II. General Comments Regarding Bridge Replacement Proiects
1. If corrugated metal pipe arches, reinforced concrete pipes, or concrete box culverts are used to replace
the bridge, then DWQ recommends the use of Nationwide Permit No. 14 rather than Nationwide
Permit 23.
2. If the old bridge is removed, no discharge of bridge material into surface waters is preferred. Strict
adherence the Corps of Engineers guidelines for bridge demolition will be a condition of the 401
Water Quality Certification.
3. DWQ prefers spanning structures. Spanning structures usually do not require work within the stream
and do not require stream channel realignment. The horizontal and vertical clearances provided by
bridges allows for human and wildlife passage beneath the structure, does not block fish passage, and
does not block navigation by canoeists and boaters.
4. Bridge deck drains should not discharge directly into the stream; stormwater should 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 NCDOT Best Management
Practices for the Protection of Surface Waters
5. Live concrete should not be allowed to contact the water in entering into the stream. Concrete is
mostly made up of lime (calcium carbonate) and when in a dry or wet state (not hardened) calcium
carbonate is very soluble in water and has a pH of approximaiely 12. In an unhardened state concrete
or cement will change the pH of fresh water to very basic and will cause fish and other
macroinvertebrate kills.
6. If possible, bridge supports (bents) should not be placed in the stream.
7. If temporary access roads or detours are constructed, they should be removed back to original ground
elevations immediately upon the completion of the project. Disturbed areas should be seeded or
mulched to stabilize the soil and native tree species should be planted with a spacing of not more than
10'x10': If possible, when using temporary structures the area should 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 disturbed soil.
8. A clear bank (rip rap-free) area of at least 10 feet should remain on each side of the steam underneath
the bridge.
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. Bare soil should be stabilized through vegetation or other means as quickly as feasible to prevent
sedimentation of water resources.
11. All work in or adjacent to stream waters should be conducted in a dry work area. Sandbags, rock
berms, cofferdams, or other diversion structures should be used where possible to prevent excavation
in flowing water.
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12. Heavy equipment should 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 should be inspected daily and maintained to prevent contamination of surface waters from
leaking fuels, lubricants, hydraulic fluids, or other toxic materials.
III General Comments if Replacing the Bridge with a Culvert
1. The culvert must be designed to allow for aquatic life and fish passage. Generally, the culvert or pipe
invert should be buried at least 1 foot below the natural streambed (measured from the natural
thalweg depth). If multiple barrels are required, barrels other than the base flow barrel(s) should be
placed on or near stream bankfull or floodplain bench elevation (similar to Lyonsfield design). These
should be reconnected to floodplain benches as appropriate. This may be accomplished by utilizing
sills on the upstream end to restrict or divert flow to the base flow barrel(s). Sufficient water depth
should be provided in the base flow barrel during low flows to accommodate fish movement. If
culverts are longer than 40-50 linear feet, alternating or notched baffles should be installed in a
manner that mimics existing stream pattern. This should enhance aquatic life passage: 1) by
depositing sediments in the barrel, 2) by maintaining channel depth and flow regimes, and 3) by
providing resting places for fish, and other aquatic organisms. In essence, the base flow barrel(s)
should provide a continuum of water depth and channel width without substantial modifications of
velocity.
2. If multiple pipes or cells are used, at least one pipe or box%,,sl ould be designed to remain dry during
normal flows to allow for wildlife passage.
3. Culverts or pipes should be situated along the existing channel alignment whenever possible. to avoid
channel realignment. Widening the stream channel should 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.
4. Riprap should 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 should be professionally
designed, sized, and installed.
In most cases, we prefer the replacement of the existing,structure at the same location with road closure.
If road closure is not feasible, a temporary detour should 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 should be removed and the approach fills removed from the 100-
year floodplain. Approach fills should be removed down to the natural ground elevation. The area
should be stabilized with grass and planted with native tree species. Tall fescue should not be used in n.
riparian areas. If the area that is reclaimed was previously wetlands, NCDOT should restore the area to
wetlands. If successful, the site may be used as wetland mitigation for the subjectproject or other
projects in the watershed.
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 Christina Breen at 919-733-9604.
1
cc: Eric Alsmeyer, USACE Raleigh Fidld Office
Chris Militscher, USEPA
Travis Wilson, NCWRC
Gary Jordan, USFWS
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