19950277 Ver 1_Complete File_19950310

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., RE., Director
Lr!;WA
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A&47teA
M IL
C) EHNR
March 13, 1995
Macon County
DELI Project # 95277
APPROVAL of 401 Water Quality Certification
Mr. Trent Anderson
County Maintenance Engineer
NC DOT
P.O. Box 1551
Andrews, N.C. 28901
FILE
Dear Mr. Anderson:
You have our approval to place fill material in 0.002 acres of wetlands or waters for the purpose
of road maintenance at SR 1531, Ledford Branch, as you described in your application dated 7 March
1995. After reviewing your application, we have decided that this fill is covered by General Water
Quality Certification Number 2732. This certification allows you to use Nationwide Permit Number 14
when it is issued by the Corps of Engineers.
This approval is only valid for the purpose and design that you described in your: application. If
you change your project, you must notify us and you may be required to send us a new application.
For this approval to be valid, you must follow the conditions listed in the attached certification.. In
addition, you should get any other federal, state or local permits before you go ahead with your
project.
If you do not accept any of the conditions of this certification, you may ask for an adjudicatory
hearing. You must act within 30 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. 27611-7447. This certification and
its conditions are final and binding unless you ask for a hearing.
This letter completes the review of the Division of Environmental Management under Section 401
of the Clean Water Act. If you have any questions, please telephone John Domey at 919-733-1786.
Sincerely,
Pto4nolwl,r. P. .
Attachment
cc: Wilmington District Corps of Engineers
Corps of Engineers Asheville Field Office
Asheville DEM Regional Office
Mr. John Domey
Central Files
95277.1tr
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper
V W s
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,u. 401 ?U?
STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPOKTATION
)nMPs B. HUNT. )R DIVISION OF HIGHWAYS
GOVERNOR
P. O. Box 1551
Andrews, N. C. 28901
March 7, 1995
MACON COUNTY
SR 1531
Mr. Bob Johnson
L?S Army Corps of Engineers
Reg. Field Office
Rm. 75, Grove Arcade Building
37 Batten, Park Avenue
Asheville, N. C. 28801-2711
Dear Mr. Johnson:
?JFn' 9- ?5z77
R. SAMUEL HUNT II I
SECRETARY
? JD?
MR ! o M
ViTTLAND-
The North Carolina Department of Transportation (NCDOT) is proposing to
grade, drain, base, and pave SR 1531, Ledford Branch Road, primarily along the existing
roadway. In order to construct this project in accordance with our current secondary road
standards and due to the proximity of a stream (Ledford Branch and tributaries, DEM
Class C) and replacement of pipe culverts, we are requesting authorization under Section
404 of the Clean Water Act.
I am sending a location map, straight-line diagram, plan-profile sheets, erosion
control plans and details, and a U.S.G.S. map indicating project area and location of
proposed pipe culverts along the road. We propose to install the new culverts slightly
below the existing streambed elevations where bedrock is not encountered to minimize
impacts to wildlife habitat and allow the existing stream gradients to remain as unchanged
as is physically possible.
The best management practices will be used to minimize and control erosion and
sedunentation on this project. The construction foreman will review all erosion control
measures daily to ensure erosion and sedimentation are being effectively controlled. If the
planned devices are not functioning as intended, they will immediately be replaced with
better devices. The rock silt screens and other erosion control devices will be in place prior
to pipe culvert construction and will remain in place until the project is stabilized.
M
IL
.\Ir. Bob Johnson
Page 2
'March 7. 1995
By copy of this letter I am asking Mr. David Yow, North Carolina Wildlife
Resources Commission District 9 Environmental Coordinator, to comment directly to you
concerning the 404 Nationwide Permit request.
.also, by copy of this letter I am requesting authorization to proceed under Section
401 of the Clean Water Act from the Division of Environmental Management.
We would like to begin construction as soon as possible. If further information is
required, please call me at [phone]. Your early review and consideration will be
greatly appreciated.
Sincerely,
.-ILA ?
W. Trent Anderson
County Maintenance Engineer
WTAirr
Attachments
cc: ?Jr. 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
\1r. David Yow, NCN''RC
DEM ID: ACTION ID:
Nationwide Permit Requested (Provide Nationwide Permit ll): 14
JOINT FORM FOR
Nationwide permits that require notffication 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 [phone]
WATER QUALM PLANNING
DIVISION OF ENVIRONMENTAL MANAGEMENT
NC DEPARTMENT OF ENVIRONMENT, HEALTH,
AND NATURAL RESOURCES
P.O. Box 29535
Raleigh, NC 27626-0535
ATTN: MR. ;OHN DORNEY
Telephone [phone]
ONE (1) COPY OF THIS COMPLETED APPLICATION SHOULD BE SENT TO THE CORPS OF ENGINEERS.
SEVEN (7) COPIES SHOULD BE SENT TO THE N.C. DIVISION OF ENVIRONMENTAL MANAGEMENT.
PLEASE PRINT.
1. Owners Name: 0 '? ? a i nu. D e ra (? men o ?t'a r1S <?a?.iOrL,
2. Owners Address: R D. 861E I S S I l X nd re w s, I?IC. 2880 I
3. Owners Phone Number (Home): (Work): (704) 3Z I - 4105
4. If Applicable: Agent's name or responsible corporate oftwial, address, phone number:
\/,I.1ren-? Anderser-
5. Location of work (MUST ATTACH MAP). County: Mawr`.
Nearest Town or City: r t" <o n K ` ? n.
Specific Location (Include road numbers, landmarks,
SR 1531 (L eA rl 8 fta.nc-, Roca
6. Name of Closest Stmam/River: ?- 440 4 gv-a nL?
7. River Basin: L i ?,? I e ?e??r? tssee Rive( FSa6l n.,
8. Is this project located in a watershed classified as Trout, SA, HQW. ORW, WS I, or WS H? YES [ ] NO [A
9. Have any Section 404 permits been previously requested for use on this property? YES [ ] NO p(]
If yes, explain.
10. Estimated 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: D. 00-z Ac-ee4 C P; p e C u l vet ?Sl
Drained:
Flooded:
Excavated:
Total Impacted:

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EROSION CONTROL
DETAILS AND
SPECIFICATIONS
Svc

245.03
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Temporary Diversion ............................. _ __ VI 4
Temporary Silt Fence VI.6
.„--„ ............... - ______ __
Temporary Slope Drain with Earth Berm ?-- < - _ g
Silt Basin Type A
--------
VI - l0
Silt Basin Type B ................................... ....... -- - VI 12
Temporary Rock Silt Check Type-A .......... ---------- - W. 14
Temporary Rock Silt Check Type-B ---------- -- VI -16
Temporary Rock Sediment Dam Type-A __ _ VI -18
Temporary Rock Sediment Dam Type-B , _. U __________ _ V1- 20
Rock Pipe Inlet Protection u
VI - 22
Rock Silt Screen
VI - 24
Stilling Basin ......................................... .......... .. L c:Q VI 26
Rock Inlet Protection:
Type A ............................... A - OR --A) ----- VI - 30
YP B '- OR -- B ) ----- VI - 32
Type C ............................... C -- OR -_ C )) ---- VI - 34
VI-1
March, 1993

TEMPORARY SILT FENCE:
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 no 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 C R=RIA:
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

VI-6 March, 1993
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VI-7 March, 1993

TEMPORARY SLOPE DRAIN:

A temporary slope drain is a flexible tubing or pipe used to carry concentrated
runoff from the top to the bottom of a cut or fill slope without causing erosion
along the slope. An earth berm is an earth barrier designed to channel runoff into a
number of erosion control devices. A berm is usually constructed with typical on-
site material. T -sections and elbows at the inlets are used to intercept the
directional flow of the runoff, to protect the temporary slope drains from washouts.
AREAS OF USE:
• At construction areas where storm water runoff above a cut or fill slope will
cause erosion if allowed to flow over a slope.
DESIGN CRITERIA:
• Peak runoff from 10 year storm.
• T -section shall be used at inlet for multiple directional flow.
• Elbows shall be used at inlet for single directional flow.
Maximum Drainage Area
per Pipe (acres)
0.50
0.75
1.00
>1.00
Pipe Diameter
(inches)
12
15
18
As Designed
VI-8
March, 1993

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SILT BASIN TYPE-B:
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)

VI-12 March, 1993

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TEMPORARY ROCK SILT CHECK TYPE-B:

A temporary rock silt check type-B (also called check dam) is a small dam with a
weir used to reduce gullying in drainage ditches that are to be filled or
permanently stabilized at a later date. These type-B rock silt checks help reduce
the flow velocity and are generally made of class-B stone. They are used in ditches
during construction where the grade meets and/or exceeds 3%.
AREAS OF USE:
• In channels, roadside ditch outlets, temporary silt ditches, and temporary
diversions.
• In conjunction with type-B silt basins.
DESIGN CRITERIA:
• Center of rock silt check shall be at least 1 foot lower than the outer edges
(top of channel sides)
• The spacing (ft.) = (3 / % of ditch grade) X 100 ft.
VI-16 March, 1993
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VI-17 March, 1993
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ROCK SILT SCREEN:
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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 larger 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)
VI-24 March, 1993
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VI-25 March, 1993

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PIPE OUTLET ENERGY DISSIPATOR:
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A pipe outlet energy dissipator shall be used at pipe outlets to slow the water
velocities when it exits the pipe and flows out ditched or natural waterways. It is
an apron of stone of a sufficient thickness to protect the outlet area from scouring
out and causing off-site sedimentation damage. Pipe outlet energy dissipators
should be built according to the guideline chart shown on page VIII-3 of this
manual.
AREAS OF USE:
• Outlets of pipes and culverts to prevent scouring.
DESIGN CRITERIA:
• In accordance with chart on page VIII-3.
• Filter fabric, or six inch layer of gravel, shall be used under stone.
MATERIALS :
• Filter fabric shall meet requirements of section 1056 of Standard
Specifications for Roads and Structures, January 1, 1990, for type II filter
fabric.
VI-34 March, 1993

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