20100890 Ver 1_Approval Letter_20101109

VIA
NCDEE R
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
November 9, 2010
Yancey County
Bridge 116 Emergency Repair
DWQ Project 20100890
NCSR 1395 (Bald Mountain Creek Road)
of 401 Water Quality Certification with Additional Conditions
J. J. Swain, Jr., P.E.
lion 13 Engineer .
h Carolina Department of Transportation
Office Box 3279
Asheville, North Carolina, 28802
Dear Mr. Swain:
Yo I have our approval, in accordance with the conditions listed below, for the following impacts in Bald Mountain Creek
for the purpose of emergency repairs to the existing bridge, constructing a temporary bridge for detour and performing
1120 linear feet of stream bank stabilization in Bald Mountain Creek on NCSR 1395 (Bald Mountain Creek Road ) in
(Yancey County-
I Stream Imnacts in the French Broad River Basin
Site Permanent Fill Temporary Streambank Temporary Total Stream
in Intermittent Impacts in Stabilization Impacts in Stream Impacts
Stream (linear Intermittent in Perennial Perennial Impact Requiring
ft) Stream Stream Stream (linear ft) Mitigation
linear ft linear ft linear ft linear ft
i I Site 1 0 0 120 20 140 0
i i Total 0 0 120 20 140 0
Total Permanent Stream Impacts for Project: 120 lin. ft. Total Temporary Stream Impacts for Project: 20 linear ft.
The project should be constructed in accordance with your application dated October 25, 2010 (received October 25,
2010), including the environmental commitments made in the application letter. After reviewing your application, we
have decided that these impacts are covered by General Water Quality Certification Nos. 3689 and 3688, corresponding to
lthelU.S. Army Corps of Engineers Nationwide Permit Numbers 13 and 33. In addition, you should acquire any other
'federal, state or local permits before you proceed with your project including (but not limited to) Sediment and Erosion
Control, Non-Discharge and Water Supply Watershed regulations.
This approval is valid solely for the purpose and design described in your application (unless modified below). Should
your project change, you must notify the DWQ and submit a new application. If the property is sold, the new owner must
be given a copy of this Certification and approval letter, and is thereby responsible for complying with all conditions. If
total wetland fills for this project (now or in the future) exceed one acre, or if total impacts to streams (now
SURFACE WATER PROTECTION SECTION -ASHEVILLE REGIONAL OFFICE One
Location: 2090 U.S. Highway 70, Swannanoa, North Carolina 28778 NorthCarolina
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
!Intemer www.ncwaterqualiry.org NaturallJ,'
An Equal Opportunity 1 Alfirri Action Employer
Mr. J. J. Swain, Jr., P.E.
November 9, 2010
Page Two

or in the future) exceed 150 linear feet, compensatory mitigation may be required as described in 15A NCAC 2H .0506
(h) (6) and (7). For this approval to be valid, you must follow the conditions listed in the attached certification and any
additional conditions listed below.
Condition(s) of Certification:
1. There shall be no excavation from, or waste disposal into, jurisdictional wetlands or waters associated with this permit
without appropriate modification. Should waste or borrow sites, or access roads to waste or borrow sites, be located
in wetlands or streams, compensatory mitigation will be required since that is a direct impact from road construction
activities.
2. Sediment and erosion control measures shall not be placed in wetlands or waters unless otherwise approved by this
Certification.
3.1 Erosion and sediment control practices must be in full compliance with all specifications governing the proper design,
installation and operation and maintenance of such Best Management Practices in order to protect surface waters
standards:
a. The erosion and sediment control measures for the project must be designed, installed, operated, and
maintained in accordance with the most recent version of the North Carolina Sediment and Erasion Control
Planning and Design Manual.
b. The design, installation, operation, and maintenance of the sediment and erosion control measures must be
such that they equal, or exceed, the requirements specified in the most recent version of the North Carolina
Sediment and Erosion Control Manual. The devices shall be maintained on all construction sites, borrow
sites, and waste pile (spoil) projects, including contractor-owned or leased borrow pits associated with the
project.
c. For borrow pit sites, the erosion and sediment control measures must be designed, installed, operated, and
maintained in accordance with the most recent version of the North Carolina Surface Mining Manual.
d. The reclamation measures and implementation must comply with the reclamation in accordance with the
requirements of the Sedimentation Pollution Control Act.
4. The post-construction removal of any temporary bridge structures must return the project site to its preconstruction
contours and elevations. The impacted areas shall be revegetated with appropriate native species.
5. Strict adherence to the most recent version of NCDOT's Best Management Practices For Bridge Demolition and
Removal approved by the US Army Corps of Engineers is a condition of the 401 Water Quality Certification.
6. 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 Stormwater Best Management Practices.
7. All bridge construction shall be performed from the existing bridge:
8. In-stream work and land disturbance within the 25-foot buffer zone are prohibited during the trout-spawning
season of January I through April 15 to protect the egg and fry stages of trout.
9. Widening the stream channel should be avoided. Stream channel widening above and below the structure typically
decreases water velocity causing sediment deposition that requires increased maintenance and disrupts aquatic life
passage.
10. All work in or adjacent to stream waters shall be conducted in a dry work area. 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. The stream channel shall be excavated no deeper than the natural bed material of the stream, to the maximum extent
practicable. Efforts must be made to minimize impacts to the stream banks, as well as to vegetation responsible for
maintaining stream bank stability. Any applicable riparian buffer impact for access to stream channel shall be
temporary and be revegetated with native riparian species.
, 12. The dimension, pattern and profile of the stream, above and below the crossing, shall not be modified. Disturbed
floodplains and streams shall be restored to natural geomorphic conditions.
i
f
-Mr"A. J. Swain, Jr,, P.E.
} November 9, 2010
Page Three
i
13. Native riparian vegetation (e.g. rhododendron, dog hobble, willows, alders, sycamores, dogwoods, black walnut and
red maple) must be reestablished within the construction limits of the project by the end of the growing season
following completion of construction.
14. The use of rip-rap above the Normal High Water Mark shall be minimized. Any rip-rap placed for stream
stabilization shall be placed in stream channels in such a manner that it does not impede aquatic life passage.
15. Rip-rap 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 should be properly designed, sized and installed.
16. Heavy equipment shall be operated from the banks rather than in the stream channels in order to minimize
sedimentation and reduce the introduction of other pollutants into the stream.
17.4 All mechanized equipment operated near surface waters must be regularly inspected and maintained to prevent
4 contamination of stream waters from fuels, lubricants, hydraulic fluids, or other toxic materials.
18. The Permittee shall ensure that the final design drawings adhere to the permit and to the permit drawings submitted
for approval.
19. Discharging hydroseed mixtures and washing out hydroseeders and other equipment in or adjacent to surface waters is
prohibited.
20. 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 kil Is.
21. No rock, sand or other materials shall be dredged from the stream channel except where authorized by this
certification.
22. A copy of this Water Quality Certification shall be maintained on the construction site at all times. In addition, the
Water Quality Certification and all subsequent modifications, if any, shall be maintained with the Division Engineer
and the on-site project manager.
23. All fill slopes located in jurisdictional wetlands shall be placed at slopes no flatter than 3:1, unless otherwise
authorized by this certification.
24. During the construction of the project, no staging of equipment of any kind is permitted in waters of the U.S., or
protected riparian buffers.
25. The outside buffer, wetland or water boundary located within the construction corridor approved by this authorization
shall be clearly marked by highly visible fencing prior to any land disturbing activities. Impacts to areas within the
fencing are prohibited unless otherwise authorized by this certification.
26. The permittee and its authorized agents shall conduct its activities in a manner consistent with State water quality
standards (including any requirements resulting from compliance with §303(d) of the Clean Water Act) and any other
appropriate requirements of State and Federal law. If NCDWQ determines that such standards or laws are not being
met (including the failure to sustain a designated or achieved use) or that State of Federal law is being violated, or that
further conditions are necessary to assure compliance, NCDWQ may reevaluate and modify this certification.
27. The issuance of this certification does not exempt the Permittee form complying with any and all statutes, rules,
regulations or ordinances that may be imposed by other government agencies (i.e. local, state, and federal) having
jurisdiction, including but not limited to applicable buffer rules, stormwater management rules, soil erosion and
sedimentation control requirements, etc.
28. The Permittee shall report any violations of this certification to the Division of Water Quality within 24-hours of
j l discovery.
29.I, Upon completion of the project (including any impacts at associated borrow or waste sites), the NCDOT Division
Engineer shall complete and return the enclosed "Certification of Completion Form" to notify NCDWQ when all
work included in the §401 Certification has been completed.
Violations of any condition herein set forth may result in revocation of this Certification and may result in criminal and/or
civil penalties. This Certification shall become null and void unless the above'conditions are made conditions of the
Federal 404 and/or Coastal Area Management Act Permit. This Certification shall expire upon the expiration of the 404
or CAMA permit.
Mr. J. J. Swain, Jr., P.E.
November 9, 2010
Page Four
If this Certification is unacceptable to you have the right to an adjudicatory hearing upon written request within sixty (60)
days following receipt of this Certification. This request must be in the form of a written petition conforming to Chapter
150B of the North Carolina General Statutes and filed with the Office of Administrative Hearings, 6714 Mail Service
Center, Raleigh, N.C. 27699-6714. If modifications are made to an original Certification, you have the right to an
adjudicatory hearing on the modifications upon written request within sixty (60) days following receipt of the
Certification. Unless such demands are made, this Certification shall be final and binding.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have
any questions, please telephone Mr. Mike Parker of the Asheville Regional Office at 828.296.4500.
Sincerely,
f? ? tra
Coleen H. Sullins, Director
Division of Water Quality
cc: Lori Beckwith, USACE, Asheville Field Office
Roger Bryan, Division 13, DEO
Ed Ingle, Roadside Environmental
David McHenry, NCWRC
Transportation Permitting Unit
'Asheville Regional Office
100890 (Swain) Bridge I M NCSR 1395 Bald Mtn. Creek Road