20110481 Ver 1_Complete File_20110519

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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
Coleen H. Sullins, Deputy Director
Division of Water Quality
June 11, 2004
MEMORANDUM
TO: John Williams, )NCDOT Planning Engineer
FROM: BrianW'L. Wrenn, NC Division of Water Quality
SUBJECT: Scoping Review of NCDOT's proposed bridge replacement projects:
In reply to your correspondence dated April 29, 2004 (received May 6, 2004) in which you requested comments
for the referenced projects, the NC Division of Water Quality has the following comments:
L General Comments Rezardinz Bridke 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 or 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 approximately 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.
6%
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (http://h2o.enr.state.nc.us/ncwetlands)
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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.
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.
IL 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. N multiple pipes or cells are used, at least one pipe or box should 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, minimise 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 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 subject project or other projects in the watershed.
t
III. Proiect-Specific Comments
B-3804 Bridke No. 296 over North Fork New River, Ashe Co.
North Fork New River is Class C;+ waters of the State. This designation indicates that the river is in the vicinity
of Outstanding Resource Waters and is subject to a special management strategy as described in 15 NCAC
2B.0225(e)(4). The special management strategy requires that stormwater management be conducted according
to 15 NCAC 2H .1007. DWQ recommends that the most protective BMPs for sedimentation and erosion control
be implemented during bridge demolition and construction activities to reduce the potential for impacts to North
Fork New River.
B-3802 Bridge No. 229 over Pine Swamp Creek, Ashe Co.
Pine Swamp Creek is Class C;+ waters of the State. This designation indicates that the river is in the vicinity of
Outstanding Resource Waters and is subject to a special management strategy as described in 15 NCAC
2B.0225(e)(4). The special management strategy requires that stormwater management be conducted according
to 15 NCAC 2H. 1007. DWQ recommends that the most protective BMPs for sedimentation and erosion control
be implemented during bridge demolition and construction activities to reduce the potential for impacts to Pine
Swamp Creek.
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 Cynthia Van Der Wiele at [phone].
pc: Steve Lund, USACE Asheville Field Office
Chris Militscher, USEPA
Marla Chambers, NCWRC
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STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
MICHAEL F. EASLEY
GOVERNOR
April 29, 2004
LYNDo TIPPETT
SECRETARY
MEMORANDUM TO: Mr. John Hennessy WETLANDS 1401 GROUP
Division of Water Quality/Wetlands (Div. 1-5)
MAY ®6 2004
FROM: William T. Goodwin, Jr., PE, Unit Head,
Bridge Replacement Planning Unit, WATER QUALITY SECTION
Project Development & Environmental Analysis Branch
SUBJECT: Notification of scheduled scoping meetings for the following projects:
Project TIP County Division Planning Engineer Roadway Engineer
B-4538 Halifax 4 Karen Capps Brenda Moore
13-4540 Halifax 4 Karen Capps Brenda Moore
B-3804 Ashe 11 John Williams Brenda Moore
B-3802 Ashe 11 John Williams Gary Lovering
B-4644 Stanly 10 Joel Johnson Gary Lovering
B-4408 Anson 10 Robin Hancock Gary Lovering
B-4409 Anson 10 Robin Hancock Gary Lovering
B-4410 Anson 10 Robin Hancock Gary Lovering
B-4404 Alamance 7 Dennis Pi kin Gary Loverin
Attached for your review are location maps for the subject projects. Scoping meetings for these
projects are scheduled for Tuesday, June 8, 2004 in the Roadway Design Conference Room
(Century Center A). These scoping meetings will be held back to back beginning at 8:30 am in
the order shown above. Expect each meeting to last approximately 15 minutes. You may
provide us with your comments at the meeting, mail them to us prior to the meeting, or email
them to the Planning Engineer prior to the meeting. If we have previously received your
comments on these projects, they will be included in the information discussed at the scoping
meeting.
Thank you for your assistance in this part of our planning process. If there are any questions
about the meetings or the projects, please call or email the Planning Engineer listed above.
attachment
MAILING ADDRESS:
NC DEPARTMENT OF TRANSPORTATION
PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS
1548 MAIL SERVICE CENTER
RALEIGH NC 27699-1548
TELEPHONE: [phone]
FAX: [phone]
WEBSITE. WWW.NCDOT.ORG
LOCATION:
TRANSPORTATION BUILDING
1 SOUTH WILMINGTON STREET
RALEIGH NC

O?OF N NAT FAQ pG
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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
August 23, 2004
Gregory J. Thorpe, Ph.D., Director
NCDOT - PDEA
1548 Mail Service Center
Raleigh, NC 27699-1548
Subject Project:
WETLANDS/ 401 GROUP
AUG 2 7 2004
WATER QUALITY SECTION
B-3802, Ashe County
Bridge No. 229, SR 1169
On-Site Determination for Applicability to the Mitigation Rules (15A NCAC 2H .0506(h)
Dear Dr. Thorpe:
On August 18, 2004, Brian Wrenn, Polly Lespinasse, and Sue Homewood conducted an on-site determination
to review two stream features located adjacent to SR 1169 at Bridge No. 229 in Ashe County for applicability
to the mitigation rules (15A NCAC 2H .0506(h)). The features are labeled as UT 1 and UT 2 to the West Fork
Pine Swamp Creek on the attached maps initialed by Sue Homewood on August 23, 2004.
The Division of Water Quality (Division) has determined that the feature labeled as UT 1 on the attached map
is perennial and subject to mitigation rules. The feature labeled as UT 2 on the attached map was determined
to be a braided section of the West Fork Pine Swamp Creek and also subject to mitigation rules. These on-site
determinations concur with the determinations made by the US Army Corps of Engineers (USACE) during the
site visit. This on-site determination shall expire five (5) years from the date of this letter.
Landowners or affected parties that dispute a determination made by the Division or Delegated Local
Authority that a surface water exists and that it is subject to the mitigation rules may request a determination by
the Director. A request for a determination by the Director shall be referred to the Director in writing c/o John
Dorney, Division of Water Quality, Wetlands/401 Unit, 1650 Mail Service Center, Raleigh, NC 27699-1650.
Individuals that dispute a determination by the Division or Delegated Local Authority that "exempts" a surface
water from the mitigation rules may ask for an adjudicatory hearing. You must act within 60 days of the date
that you receive this letter. Applicants are hereby notified that the 60-day statutory appeal time does not start
until the affected party (including downstream and adjacent landowners) is notified of this decision. The
Division recommends that the applicant conduct this notification in order to be certain that third party appeals
are made in a timely manner. To ask for a hearing, send a written petition, which conforms to Chapter 150B
of the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center,
Raleigh, N.C. 27699-6714. This determination is final and binding unless you ask for a hearing within 60
days.
North Carolina Division of Water Quality 585 Waughtown Street
Internet: h2o.enr.state.nc.us Winston-Salem, NC 27107
Nof Carolina
Xtura!!y
Phone [phone] Customer Service
FAX [phone]
An Eaual ODDortunitvlAffirmative Action Emolover- 50% Recvcled/10% Post Consumer Paper
Dr. Gregory Thorpe, PhD, Director
August 23, 2004
NCDOT Project B-3802
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This letter only addresses the applicability to the mitigation requirements and does not approve any activity
within Waters of the United States or Waters of the State. If you have any additional questions or require
additional information please call Sue Homewood at 336-771-4600 extension 287 or at
[e-mail].
Sincereely
Alan W. Klimek, P.E.
f
Attachments: Location Map
cc: Carla Dagnino, Office of Natural Environment, NCDOT - PDEA
WSRO File Copy
Central Files
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