HomeMy WebLinkAbout19970497 Ver 1_Complete File_19970606State of North Carolina
Department of Environment,
Health and Natural Resources i •
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary[NJ F1
A. Preston Howard, Jr., P.E., Director
June 20, 1997
Swain County
DWQ Project # 970497
APPROVAL of 401 Water Quality Certification and ADDITIONAL CONDITIONS
Mr. C. R. Styles
P.O. Box 250
Bryson City, NC 28713
Dear Mr. Styles:
You have our approval, in accordance with the attached conditions and those listed below, to fill in 0.003 acres
of wetlands or waters for the purpose of pipe replacement at SR 1140, as you described in your application dated 27
May 1997. After reviewing your application, we have decided that this fill is covered by General Water Quality
Certification Number 3100. This certification allows you to use General Permit Number 031 when it is issued by
the Corps of Engineers. In addition, you should get any other federal, state or local permits before you go ahead
with your project including (but not limited to) Sediment and Erosion Control, Coastal Stormwater, Non-Discharge
and Water Supply Watershed regulations. This approval will expire when the accompanying 404 or CAMA permit
expires unless otherwise specified in the General Certification.
This approval is only valid for the purpose and design that you described in your application except as modified
below. If you change your project, you must notify us and you may be required to send us a new application. If
total wetland fills for this project (now or in the future) exceed one acre, 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. Sediment and erosion control measures
shall adhere to the design standards for sensitive watersheds (T 15A:04B .0024).
If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You
must act within 60 days of the date that you receive this letter. 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, P.O.
Box 27447, Raleigh, N.C. 276 1 1-7447. This certification and its conditions are final and binding unless you ask
for a hearing.
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 John Domey at 919-733-1786.
Attachment
cc: Wilmington District Corps of Engineers
Corps of Engineers Asheville Field Office
Asheville DWQ Regional Office
Mr. John Domey
Central Files
Since ely,
0.on ?Howar , Jr. P.E.
970497.1tr
Division of Water Quality - Environmental Sciences Branch
Environmental Sciences Branch, 4401 Reedy Creek Rd., Raleigh, NC 27607 Telephone 919-733-1786 FAX # 733-9959
An Equal Opportunity Affirmative Action Employer - 500% recycled/100% post consumer paper
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March,1992
ROCK SILT SCREENS
A rock silt screen is a low-level dam structure to be used in streams below culvert
sites. Rock silt screens shall be used to trap sediment transported by running water
and shall be placed in the stream below the construction site within the right-of-
way or easement boundary. The rock silt screen utilizes class B stone lined with #5
or #57 stone to produce a ripple-effect in the stream to settle the lirger sediment
particles transported in the stream from the construction site. The trapped sediment
shall be cleaned out before the device is removed from the stream.
AREAS OF USE:
• In live streams below construction sites where construction occurs in or
adjacent to the stream.
• In live streams below a culvert construction site.
• Where it can be cleaned before it is removed from stream.
DESIGN CRITERIA:
• Structural stone - class B stone
• Sediment control stone - # 5 or # 57 stone
• Dam height - 1.5 ft. minimum and 3 ft. maximum ( shall not be higher than
1 ft. above normal flow of stream)
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401 ISS0E®
STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
JAMES B. HUNT JR.
GOVERNOR
Swain County
SR 1140
Mr. Bob Johnson
215 Army Corps of Engineer
Reg. Field Office
Room 75, Grove Park Ave.
Asheville, NC 28801-2714
Dear. Mr. Johnson:
DIVISION OF HIGHWAYS
P. O. Box 250
Bryson City, NC 28713
May 27, 1997
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The North Carolina Department of Transportation is proposing to replace two (2)
crosspipes for maintenance purposes on SR 1140, Alarka Road in Swain County. Due to the
replacement of two (2) pipe culverts in two unnamed tributaries of Alarka Creek (Dem Class C-
Tr) we are requesting authorization under Section 404 of the Clean Water Act.
I am sending drawings for the pipe replacements in the unnamed tributaries of Alarka
Creek, general notes and standards on erosion control measures, and a marked County Map.
We propose to install the new culverts slightly below the existing streambed elevation where
bedrock is not encountered to minimize impact to Wildlife habitat and allow the existing stream
gradients to remain as unchanged as physically possible.
The best management practices will be used to minimize and control sedimentation and
erosion on this project. The construction foreman will review all erosion control measures daily
to ensure sedimentation and erosion controls are being effectively controlled. If the planned
devices are not functioning as intended, they will immediately be replaced with better devices.
The silt fences and other erosion control devices will be in place prior to pipe construction and
will remain in place until the project is stabilized.
By copy of this letter I am asking Mr. Mark Davis, Habitat Coordinator Western
Mountain District, of the NCWRC to comment directly to you concerning the 404 Nationwide
permit request.
(9
-970497
GARLAND B. GARRETT J R.
SECRETARY
Mr. Bob Johnson
Page 2
May 27, 1997
Also by copy of this letter, I am requesting authorization to proceed under Section 401
of the Clear Water Act from Division of Environmental Management. In addition, I am asking
Mr. Davis and Mr. Ed Ingle, Area Roadside Environmental Engineer (NCDOT), and Mr. Richard
Phillips (DEHNR), to comment directly to me concerning this permit request.
We would like to begin construction as soon as possible. If further information is
required, please advise. Your early review and consideration will be appreciated.
Yours truly,
C. R. Styles, P. E.
District Engineer
CRS:sd
atta.
cc: Mr. Richard Phillips, P. E., Regional Engineer DEHNR
Mr. F. D. Martin, P. E., Division Engineer
Mr. E. L. Ingle, Area Roadside Environmental Engineer
Mr. Eric Galamb, Water Quality Certification Unit, DEM
Mr. Mark Davis, Habitat Coordinator W. Mtn. Dist., NCWRC
DEM ID: ACTION ID:
Nationwide Permit Requested (Provide Nationwide Permit fl: 03
JOINT FORM FOR
Nationwide permits that required notification to the Corps of Engineers
Nationwide permits that require application for Section 401 certification
WILMINGTON DISTRICT ENGINEER
CORPS OF ENGINEERS
DEPARTMENT OF THE ARMY
P. O. Box 1890
Wilmington, NC 28402-1890
ATTN.: CESAW-CO-E
Telephone (919) 252-4511
WATER QUALITY PLANNING
DIVISION OF ENVIRONMENTAL MANAGEMENT
NC DEPARTMENT OF ENVIRONMENTAL, HEALTH
AND NATURAL RESOURCES
P. O. Box 29535
Raleigh, NC 27626-0535
ATTN: Mr. John Dorney
Telephone (919)733-5083
ONE (1) COPY OF THIS COMPLETED APPLICATION SHOULD BE SENT TO THE CORPS OF ENGINEERS.
SEVEN (7) COPIES SHOULD BE SENT TO THE NC DIVISION OF ENVIRONMENTAL MANAGEMENT.
PLEASE PRINT.
1. Owners Name: North Carolina Department of Transportation
2. Owners Address: P. O. Box 250, Bryson City, NC 28713
3. Owners Phone Number (Home): (Work) (704) 488-2131
4. If applicable Agent's name or responsible corporate official, address, phone number:
C. R. Styles, P. E., District Engineer
5. Location of work (MUST ATTACH MAP). County: Swain
Nearest Town or City: Bryson City
Specific Location (Include road numbers, landmarks, etc): SR 1140 - Alarka Road
6. Name of Closest Stream/River: Alarka Creek
7. River Basin:
Little Tennessee River Basin
8. Is this project located in watershed classified a ro SA HQW, ORW, WSI, or WSII?
9. Have any Section 404 permits been previously requested for use on this property?
If yes, explain:
Yes [ X ] No [ ]
Yes [ ] No [ X ]
10. Estimate total number of acres of waters of the U.S., including wetlands, located on project site:
11. Number of acres of waters of the U. S., including wetlands, impacted by the proposed project.
Filled: 0.003 Ac
Drained:
Flooded:
Excavated:
Total Impacted: 0.003 Ac.
12. Description of proposed work (Attach PLANS-81/2" x 11" drawings only): To replace two (2) failing crosspipes on
SR 1140 for maintenance purposes.
13. Purpose of Proposed work: Same
14. State reasons why the applicant believes that this activity must be carried out in wetlands. Also, note measure taken to
minimize wetland impacts. See Attachments
15. You are required to contact the U.S. Fish and Wildlife Service (USFWS) and/or Nation Marine Fisheries Service
(NMFS) regarding the presence or any Federally listed or proposed for listing endan gered or threatened species or critical
habitat in the permit area that may be affected by the proposed project. Have you done so? YES [X ] NO
With Application [ ]
RESPONSES FROM THE USFWS AND/OR NMFS SHOULD BE FORWARDED TO CORPS.
16. You are required to contact the State Historic Preservation Officer (SHPO) regarding the presence of historic properties
in the permit area which may be affected by the proposed project? Have you done so? YES[ ] NO[X ]
With Application
17 Additional information required by DEM:
A. Wetland delineation map showing all wetlands, streams, and lakes on the property.
B. If available, representative photograph of wetlands to be impacted by project.
C. If delineation was performed by a consultant, include all data sheets relevant to the placement of the delineation line.
D. If a stormwater management plan is required for this project, attach a copy.
E. What is land use of surrounding property? Rural Woodland - Residential
F. If applicable, what is proposed method of sewage disposal?
$ 2`?'
Owner's Signatur Date
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EROSION CONTROL
DETAILS AND
SPECIFICATIONS
245.03
245.05
893.01
890.05
245.01
245.02
892.04
895.10
892.01
892.02
897.01
897.02
894.01
245.04
896.01
896.02
896.03
Temporary Silt Ditch
Temporary Diversion .............................
Temporary Silt Fence ...................... -
Temporary Slope Drain with Earth Berm ..........
Silt Basin Type A ................................. -0
Silt Basin Type B ...........................................
Temporary Rock Silt Check Type-A ..........
Temporary Rock Silt Check Type-B, ._..__......
Temporary Rock Sediment Dam Type-A ............
Temporary Rock Sediment Dam Type-S ...
Rock Pipe Inlet Protection Type-A
Rock Pipe Inlet Protection Type-B ............
Rock Silt Screen .............................................
Stilling Basin ..........................................
Rock Inlet Protection:
Type A ............................... AME] .. OR -• A
Type B ............................... B ME] -- OR •- B?
Type C ............................... C rE]j -- OR .. C
12 March, 1992
A temporary silt fence is commonly used at the toe of a fill section to-prevent off-
site sedimentation. It is made of permeable filter fabric buried at the bottom,
stretched and supported by steel posts. The silt fence reduces the water flow while
retaining the sediment. They may, also be used to divert water flow to protected
outlets. Silt fences need to be checked after each significant rainfall to ensure there
effectiveness. They must be maintained on a regular basis. Silt fences shall not be
installed across streams, ditches, or waterways.
AREAS of USE:
• At toe of fill sections where sediment runoff can be stored and contained
inside the project limits.
DESIGN CRITERIA:
Material With Wire Without Wire
Fabric Type 3 Class A Type 3 Class B
Steel posts length 5 ft 5 ft.
Post spacing 10 ft. 6 ft. maximum
17 March, 1992
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SILT BASIN TYPE-B:
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A silt basin type-B is a temporary -basin built to collect sediment flowing through a
drainage way. The silt basin is built at the base of the ditch with its length being at
least 2 times the width of the basin. The type-B silt basin is generally built in
conjunction with temporary rock silt checks and other devices that control or slow
down water flow. This device must be monitored closely and cleaned out on a
regular basis until grass is established along the ditch line and sedimentation is no
longer a problem.
AREAS OF USE:
• In conjunction with temporary rock silt checks and other devices used in
drainage ditches.
DESIGN CRITERIA:
• Width - variable
• Length - 2 times width
• Depth - 2 ft. minimum storage - 1800, cubic feet/acre (equals L x W x D)
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23 March, 1992
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•
ROCK PIPE INLET PROTECTION TYPE-A: e?
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A rock pipe inlet protection type-A is a horseshoe shaped structure with a built-in
sediment storage area around the outside perimeter of the structure. The type-A
rock pipe inlet protection shall be used at pipe inlets no larger than 36 inches in
diameter where it is receiving flow from several directions. The type-A rock pipe
inlet protection utilizes class-B stone lined with #5 or #57 stone to protect drainage
pipe structures by trapping sediment before it enters. They have a sediment storage
pit which is designed by the same procedures as a silt basin.
AREAS OF USE:
• At inlets to pipes no larger than 36 inches in diameter where it receives flow
from several directions.
• In areas where it can be cleaned and maintained on a regular basis.
DESIGN CRITERIA:
• Structural stone - class-B stone
• Sediment control stone - #5 or #57 stone
• Sediment storage area -1800 cubic ft./acre
• Dam height - 3 ft. minimum
33 March, 1992