20030909 Ver 2-_More Info Received_20040519

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STATE OF NORTH CAROLINA
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DEPARTMENT OF TRANSPORTATION
MICHAEL F. EASLEY LYNDO TIPPETT
GOVERNOR SECRETARY
May 17, 2004
Ms. Beth Barnes
Wetlands/401 Unit
NC DENR Division of Water Quality
1650 Mail Service Center
Raleigh, NC 27699
(Two Copies)
Mr. John Thomas
US Army Corps of Engineers
6508 Falls of the Neuse Suite 120
Raleigh, NC 27615-6814
(Two Copies)
Subject: Modification Request Concerning Stream Relocation at Site #28 on TIP
No. U-2524 AB (Western Urban Loop) Guilford County, State Project
No. S.U492110. USACR Action ID No. 200321137 DWQ Ccrt. # 3435
DWQ Project Number 030909
The North Carolina Department of Transportation (NCDOT) is currently
constructing the stream relocation at Site 28 on project U-2524 AB of the Greensboro
Western Loop. During a recent site visit (Apri126, 2004) with contractors and NC _
Division of Water Quality it was decided that a modified version of the submitted plats
for stream relocation would be better suited to fit the needs of the project. The existing
stream relocation plan called for overlapping of the existing stream and proposed stream
in some areas. Also, the proximity of the proposed stream to the existing stream in some
areas is very close. Because of the overlapping and close proximity, difficulty is expected
in regards to constructing the new stream relocation without impacting the existing
stream. Because the existing stream is in the Randleman Watershed which requires a 50
foot buffer, it would be nearly impossible to utilize equipment for the construction of the
proposed stream without being in the buffer area and without increasing sediment
Division 5, 2612 N. Duke Street, Durham, NC 27704
Phone: [phone] Fax: [phone]

transport and turbidity in the existing stream. In addition, working within the tightly
confined spaces while trying to keep impacts at a minimum would severely lengthen the
time necessary to construct the proposed stream relocation.
For the above reasons, it was decided with DWQ in concurrence, that a temporary
stream relocation (Fabric Lined Diversion Channel) located away from the existing and
proposed stream sites would better serve the purpose of the project. By doing so, the
contractors would be able to work "in the dry" on the new stream locations and thereby
minimize impacts and decrease the length of time that the work would require.
Attached are plats of the proposed modification showing the existing, proposed and
temporary stream locations. A construction sequence describing the method of
construction is also attached. All work is to be performed as described in the BNIP
manual (Section 5.2.4) which is also attached. '
Application is hereby made for a Department of the Army Section 404 Nationwide
Permit (NWP) 33 and NCDENR-DWQ Section 401 Water Quality Certification (WQC)
No. 3366 for this activity at the project. The NCDOT will comply with all applicable
NWP and WQC conditions. If you have any questions or need additional information,
please contact me at [phone].
cerely,
\. ,,~jli~ ~ .
erry A. Parker
Division Environmental Officer
cc: Sue Homewood, NCDENR-DWQ, Winston-Salem
Chris Kirkman, NCDOT Resident Engineer, Greensboro
Barry Harrington, NCDOT Roadside Environmental Engineer
Phillip Todd, NCDOT PDEA

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Archer Western
Contractors
April 28, 2004
NC Department of Transportation
P.O. Box 14996
Greensboro, NC 27415-4996
Attn:. Christopher D. Kirkman, P.E.
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RE: Greensboro Western Loop, Contract No. C200940
Stream Relocation Plan -Site 28
Dear Chris,
On April 26, 2004 a meeting was conducted regarding Environmental
Stewardship and Permits. We have found this meeting to be insightful and a
value to all attendees. I would hope that meetings with similar agendas can be
scheduled to further educate both my staff and subcontractors as well as your
staff as to the importance of following the Permit guidelines to their fullest extent.
An immediate result of the meeting was a request that Archer Western propose a
plan to relocate the stream at Site 28. Our planned method is herein attached for
your review/approval. I am requesting that this request be given the highest
priority for approval so that the area can be stabilized to its final design as soon
as possible.
If there are any questions, I may be contacted at 336-362-1299 or 336-632-4270.
Sincerely,
Archer Western Contractors, Ltd.
~~~~
Daniel M. Lie erman
Senior Project Manager
Cc: File
Dave Hurley
2909 Cromwell Rd. A Member of Tho Walsh Group
Greensboro, NC 27407 An Equal Opportunity Employer
Phone: [phone]
Fax: [phone]
www.walshgroup.com

Stream Relocation -Site 28
The stream relocation will start from the down stream side at approximately
station 29+50 and proceed to station 31+50. As shown on the attached
sketch, we have identified three areas that are numbered Area 1, Area 2 and
Area 3.
Temporarily relocate the existing stream from Area 1 to Area 2
A) The temporary channel will be constructed in the dry, leaving a 10'
plug between the existing stream and the temporary channel.
B) The temporary channel will be stabilized with coir fiber on the
channel bottom and fabric for soil stabilization on the banks.
C) A temporary channel crossing will be placed in the temporary channel
to access the permanent stream relocation area.
D) Upan completion of this operation, a field inspection will be
conducted prior to rerouting the stream into the temporary channel.
E} Once approved, the 10' plug will be removed in the lower end and the
area stabilized in the wet by use of coir fiber and fabric materials.
F) The upper 10' plug will then be removed to allow the stream to flow
into the temporary stream. The area of the plug will then be stabilized
with fabric materials.
G) Permanently construct the permanent steam as shown on the attached __
sketch. Use coir fiber and soil stabilization fabrics to stabilize the
stream channel.
~ Conduct a field inspection prior to rerouting the stream from the
temporary channel to the permanent stream location.
Proceed between Area 2 and 3 in lilce manner

. ~ 5.2 -Flow Diversion
5.2.4 Fabric Lined Diversion Channel
Purpose Used to divert the normal flow and small storm events around the
work area without the use of pumping operations. The diversion
' channel is typically constructed adjacent to the work area and is
lined with apoly-fabric to prevent erosion of the diversion
channel.
Conditions Where
~ Practice Applies
1
a Conditions Where
Practice Does Not
Q APPLY
p Construction
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/ When adequate space and slopes exist adjacent to the work
area.
/ Pipe extensions, headwall installations and some pipe/culvert
replacements where adequate space is unavailable.
Step 1 -Install sediment controls.
Step 2 -Excavate the diversion channel without disturbing the
existing channel. - -
Step 3 -Place poly-fabric liner in diversion channel with a
minimum of 4 feet of material overlapping the channel banks.
Secure the overlapped material using at least 1 foot of fill
material
BMPs far Construction and Maintenance Activities
'°~ North Carolina Department of Transportation page 71
August 2003

5.2 -Flow Diversion
Step 4 -Connect the downstream diversion channel into the
downstream existing channel and secure the poly-fabric liner at
the connection. .
Step 5 -Connect the upstream diversion channel into the
upstream existing channel and secure the poly fabric liner at the
connection.
Step 6 -Construct an impervious dike in the existing channel at
the upstream side to divert the flow into the diversion channel.
Step 7 - Construct an impervious dike in the existing channel at
the downstream side to isolate the work area.
' Step 8 -Upon completion of the culvert construction, remove the
impervious dikes and divert the channel back into the culvert.
Step 9 -Remove the poly-fabric liner and fill in the diversion
channel.
Step 10 -Establish vegetation on fill section and all other bare
areas.
Maintenance Check the posy-fabric liner for stability during normal flow
Check the liner for stability after each rainfall event
Typical Problems Improperly installed liners. ~
• Filter fabric not installed (secured) properly. ~
• Earthen material allowed to come into contact with water
body. ~
• There maybe certain times of the year, especially in the
summer, when fabric-lined channels may cause thermal ~
pollution. This could be a problem in trout waters during
certain times of the year. ~

North Carolina Department of Transportation BMPs for Construction and Maintenance Activities
August 2003
Pag© 72

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ENSURE TO ANCHOR ALL
PUMPS AND PIPES SECURELY.
NORTH CAROLINA DEPARTMENT OF TRANSPORTATION
AUGUST 2003

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8l.1Ps FOR CONSTRUCTION AND 61AINTENANCE ACTIVITIES

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PROJECT:8.U~92101 (U-2524AB)
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NORTH OF I-85 NEAR GIZOODIETO~YN
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