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STATE OF NORTH CAROLINA
12@20leg
JUN Y D
3 2006
DENR "y
WETLAND
S ANDD STT0RMWATER BRANCH
DEPARTMENT OF TRANSPORTATION
MICHAEL F. EASLEY
GOVERNOR
June 9, 2006
United States Army Corps of Engineers
Regulatory Field Office
Post Office Box 1000
Washington, NC 27899-1000
ATTN: Mr. William Westcott
NCDOT Coordinator-Division 2
SUBJECT: Permit Modification Request for a Nationwide 6 Permit:
LYNDO TIPPETT
SECRETARY
0,5o,511
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US 17 From South of SR 1149 (Price Road) to US 17 South of SR 1536 (Hamilton
Beach Road), Beaufort, North Carolina; TIP Project R-2510B; Federal Aid Project
No. MAF-75-3(26); WBS Element 34440.1.1
REFERENCE: Nationwide 6 Permit issued May 10, 2005. US Action ID 200510771
Dear Mr. Wescott,
The purpose of this letter is to request a permit modification to the Nationwide 6 Permit issued May
10, 2005. The work detailed below is in addition to the investigation permitted in the above
referenced permit.
As you are aware, The North Carolina Department of Transportation (NCDOT) is planning to build a
bridge on new location within the project limits of the proposed Washington Bypass in Beaufort
County, North Carolina. The proposed bridge will cross the Tar River north of the town of
Washington on NC 17.
The NCDOT Geotechnical Engineering Unit is in the process of coordinating a site characterization
investigation for the revised design of a structure on the above referenced roadway project. The
revised design area is within the wetlands adjacent to the Tar River and Kennedy's Creek. There
will also be three (3) test piles driven in the Tar River.
A private engineering firm (PEF) will be conducting the investigation with 11 soil borings to be
performed on the project. All of the borings will fall within the footprint of the proposed structure
over the wetlands adjacent to the Tar River and Kennedy's Creek. These locations are shown on the
attached Drawing #1.
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
The borings in the wetland will be performed with a low ground pressure tracked drill rig. The land
borings will be 3-inch to 4-inch in diameter. All disturbances from the borings should be limited to
within a 2-foot radius of the boring location. The maximum total amount of ground disturbance
expected for the borings is 140 W.
Three (3) test piles will be driven in the Tar River from a barge and are shown on the attached
Drawing #2. The piles will consist of 30-inch square, precast and prestressed concrete. The test piles
will be driven with no jetting. All piles will be cut off 1 foot below the mudline of the Tar River at
the completion of the test pile program, which would require some disturbance of the riverbed. The
maximum area that may be disturbed from the test pile driving and removal is estimated to be 525
ft2.
Therefore, the maximum total amount of ground disturbance expected for all of the site
characterization investigation (borings and test pile) is 665 ft.
Because this area is located in sensitive waters, an in-water moratorium exists between February 15
through June 15. All in-stream work will take place outside the moratorium dates.
If you have any questions or would like additional information, please call Mr. Chris Underwood at
[phone]. Thank you in advance for your help in this matter.
Sincerely,
Gregory J. Thorpe, Ph.D.
Environmental Management Director
Project Development and Environmental Analysis Branch
CC: W/attachment
Mr. John Hennessy, NCDWQ (2 copies)
Mr. Travis Wilson, NCWRC
Mr. Gary Jordan, USFWS
Mr. Ron Sechler, NMFS
Mr. Michael Street, NCDMF
Mr. Steve Sollod, NCDCM
Mr. Bill Aftington, NCDCM
Dr. David Chang, P.E., Hydraulics
Mr. Greg Perfetti, P.E., Structure Design
Mr. Mark Staley, Roadside Environmental
Mr. Njoroge W. Wainaina, P.E., Geotechnical Unit
Mr. C. E. Lassiter, P.E., Division 2 Engineer
Mr. Jay Johnson, Divison 2 Environmental Officer
Mr. Rodger Rochelle, P.E., NCDOT Alternate Delivery Unit
W/o attachment
Mr. Scott McLendon, USACE, Wilmington
Mr. Jay Bennett, P.E., Roadway Design
Mr. Majed Alghandour, P. E., Programming and TIP
Mr. Art McMillan, P.E., Highway Design
Mr. Brian Yamamoto, P.E., PDEA Project Planning Engineer

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Station Latitude Longitude
Sta 437+00 35° 32' 57.09909" 77° 4' 50.33806"
' TEST PILE LOCATIONS DRAWN: A.R.T. DATE: MAY 2006 DRAWING
J
MACTEC ° 100' 200' 400' WASHINGTON BY-PASS
DFT CHECK: G.J.K. SCALE: 1" = 200'-0"
SCALE IN FEET
T NE AND CONSULTING, 1•_200' BEAUFORT, NORTH CAROLINA APPROVAL: (? < JOB No.: 6468-06.1355
330101 ATLANTIC ANTIC AVENUE NUE RALEIGH,, NORTH CAROLINA T.I.P. R-25108
REFERENCE:

Boring Latitude Longitude Station Offset
F-1 35° 33' 17.10159" 77° 445.40907" 457+72 38.4 RT
F-2 35° 33' 18.21173" 77° 4'44.92413" 458+92 39.9 RT
F-3 35° 33' 19.31299" 77° 4'44.41098" 460+12 42.3 RT
F-4 35° 33'20.41304" 77° 4'44.38493" 461+32 43.3 RT
F-5 35° 3321.48697" 77° 4'43.30108" 462+52 45.5 RT LF_1
F-6 350 33' 55.55875" 77° 4'42.70484" 463+72 47.0 RT
F-7 35° 33'23.6197711 77° 4'42.08144'F 464+92 48.6 RT oe,o4Ar p,
F-8 35° 33'24.66957" 77° 4'41.43117" 466+12 50.8 RT
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F-9 35° 33'25.70769" 77° 4'40.75434" 467+32 51.9 RT
F-10 35° 33'26.73585" 77° 4'40.05603" 468+52 53.6 RT
F-11 35° 33' 27.7579" 77° 4'39.34489" 469+72 53.3 RT
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0 50 100 200 FINAL BORING LOCATIONS DRAWN: A.R.T. DATE: MAY 2006 DRAWING
MACTEC 111111 WASHINGTON BY-PASS DFTCHECK: G.J.K. SCALE: V,=100'-0"
SCALE IN FEET -! I.P. R-25108 1
MACTEC ENGINEERING AND CONSULTING,INC. 1"=100' BEAUFORT NORTH CAROLINA APPROVAL: ?1?6106 JOB No.: 6468-06-1355
3301 ATLANTIC AVENUE RALEIGH, NORTH CAROLINA e
REFERENCE: