20240512 Ver 1_BR-0004_NWP6_Attachments_20240404

Boring Plan

Subject: Application for the Nationwide Permit 6 (NWP6) for borings located within
environmentally sensitive, wetland areas for Bridge No.66 on US 264 Over Pungo
River
HDR is under contract with NCDOT to perform the requested subsurface investigation for the
bridge replacement project on US 264 over the Pungo River. There are total of nine (9) borings
HDR proposes to be completed under this permit. The following is a summary of methods and
equipment used for the explorations include:
• A track -mounted drill rig will be mobilized to the site for the roadway and bridge end bent
borings located on the west and east of the proposed alignment. See Attachment 2: Drill
Rig Photo, of similar size/type of the rig proposed on this project. Each track width is
approximately 18-inches wide x 10-feet long, but we are proposing the width to be affected
is 6 feet wide paths. Access locations are proposed in Attachment 1: Boring Location
Plan. The rig has four stabilizing jacks, approximately 6 inches in diameter and will be
used to level the rig and provide stability during drilling. A 3-inch diameter casing inserted
into the ground will be used to advance the borings. On land, this track -mounted drill rig
will be used to access and advance four (4) borings. The exploration locations are
proposed in Attachment 1: Boring Location Plan. This drill rig will advance temporary
casing and perform Standard Penetration Testing (SPT) within the casing at each location.
• On water, the remaining five (5) borings for the proposed interior bents will require the use
of a floating aluminum barge that will be spudded into the mudline during drilling. A drill
rig placed on the barge, will advance temporary casing, and perform SPTs within the
casing at each location. The barge will be secured below the mudline with four (4) spuds
that are 3-inches diameter steel pipe. The casing to advance the boring is also a 3-inch
diameter steel pipe. See attached Attachment 2: Barge Photo of the similar size/type
proposed on this project.
The proposed boring location plan and proposed access path in the wetlands are attached. Drill
rig photos are attached herein. The track -mounted drill rig applies low pressure with minimal
disturbance. The total disturbances from these activities is estimated to be a maximum of 637
ft2 of plan area.

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ATTACHMENT 1: BORING LOCATION PLAN BR-0004 5
E\ �,
3 US 264 OVER PUNGO RIVER
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" INC®IvIFL1E E �L,�NS
ti ➢O NOT USIE FOR CW ACQUISITION
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X° Total Estimated Wetland Impacts = 2.5 + 530.1 + 104.1 = 637 ft2
P Total Estimated Buffer Zone 1 Impacts = 66 ft2 "° as DOCUMENT NOT CONSIDERED FINAL
25 e
US 264 35 US 264 UNLESS ALL SIGNATURES COMPLETED
T E �= 3 � Total Estimated Buffer Zone 2 Impacts = 321 ft2 �rJ � HDR Engineering, Inc. of the Carolinas
75j 85 555 Fayetteville St, Suite 900 Raleigh, N.C. 27601
N.C.B.E.L.S. License Number: F-0116
2 2025 ADT
2045 ADT °
SR 1712 NuHGER
DAYRIN100s18.95'
VEHICLE Barge Access Locations: r' w
N 2408.2
�
GUM NECK RO I = LESS THAN 50 v D Each location has 4 spuds
NM and 1 drilling casing. N 55°41'49" W
Spuds and casing are .. ... .... ... .......... � 26.24 -
5 "�SGG 3-inches diameter BM EL VAT ON =+3.6.2 Buffer e 1
N 7251 E 7432 0
yL r, o -L- S TION 26.8 .24, 77. 79' EFT N 28°19.46" E
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to B LOGE SPIK SET IN OUBLE K 22.54
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XISTING R a n
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7 RI GE ND ° a Z Proposed Access °
L `0 QI Proposed Access 3 22' o Path for Wetland m
_I 0 W O T LE Path for Wetland a Borings m
F� y� i AT 4 95Z,17 Boringsuse,� cn
U t - °s F
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<T _ 0 � / f 1 GR PARK 0/L W D Q6,. _
6a°131' E �`1 F--I
29.31' O
66 �� Track Rig Access Locations.
5 20 Each path location will be 6 feet
est Side Estima 34°a '47" E
�� wide with low-pressure tracks 4 32.6 E t Sid imated
and 4 stabilizers and a 3-inch
r ) Wetland Imp �s� �,�, �L casing during drilling. Each s G°„'D9" E Wetland Impacts:
AN GAGE (41'x6') + (47x6') + 2(0.25ft2^ 4) + (2 d stabilizing jack is 6-inches t-t'x6') + 3 2) + 2(0.25ft2x 4) + (2 x 0.05ft2) _
} J � , 530.1 f a diameter (assume square for s ;, 104.1 ft2
E 5503' calculation).
a� O6'38" E er Zo 1 9 PlS t�, + 1 2 lu w
/lC'.St l2 .87 EIP EIP " °� +T�0.25ft2 x 4) 1 x 0.05ft2) A� �;,� '' . Q Bs' 4 l �'� 32.,G' uffer Zone 1 2 =
(7.5 x6) + ( .25ft x 4) + (1 x 0.05ft )
o 19.1 ft2 7 156 � � y 46.1 ft2
0 Buffer Zone l I °
S (22.5'x6') + (0.25ft2 x 4) +" 1 x 0.05ft2)= \ er Zone 2
136.7a#t2 (30.5 x6) + (0. ft2 x 4) + (1 x 0.05ft2 )-
to l0.94.87 .1 ft2
o - �,Be'ar F s nz°3n PAVEMENT REMOVA ass,
cR -y/ 57-18.58" IN s°s FOR -L- PROFILE, SEE SHEET �e 0.S
S/ 903 S 2 ° 41'o5'2a, Is.7 FOR -Y_
PROFILE SEE SHEET _,
s695;3s w s n66' FOR -YIA- PROFILL, SEE SHEE 8. 8
s

Section 7

United States Department of the Interior
FISH AND WILDLIFE SERVICE
Raleigh ES Field Office
Post Office Box 33726
Raleigh, North Carolina 27636-3726
Apri14, 2024
Chris Rivenbark
RK&K
8601 Six Forks Road, Forum 1, Suite 700
Raleigh, NC 27615
Dear Mr. Rivenbark:
U.S.
FISH & WILDL7 FE
SERVICE
� o=
This letter is in response to your letter of April 3, 2024 which provided the U.S. Fish and Wildlife
Service (Service) with the biological conclusion of the North Carolina Department of Transportation
(NCDOT) that the geotechnical borings required for the future replacement of Bridge No. 66 on US
264 over the Pungo River in Beaufort and Hyde Counties (STIP No. BR-0004) may affect, but is not
likely to adversely affect the federally threatened eastern black rail (Laterallus jamaicensis
jamaicensis) and West Indian manatee (Trichechus manatus). The following response is provided in
accordance with Section 7 of the Endangered Species Act (ESA) of 1973, as amended (16 U.S.C.
1531-1543).
According to information provided, eastern black rail surveys were conducted at the project site in
May and June 2021. No eastern black rails were encountered. Based on the survey results and other
available information, the Service concurs with your conclusion that the proposed action may affect,
but is not likely to adversely affect the eastern black rail. Regarding the West Indian manatee,
NCDOT has committed to implementing the USFWS Guidelines for Avoiding Impacts to the West
Indian Manatee: Precautionary Measures for Construction Activities in North Carolina Waters.
Based on this commitment and other available information, the Service concurs with your conclusion
that the proposed action may affect, but is not likely to adversely affect the West Indian manatee.
As stated in your letter, the northern long-eared bat (Myotis septentrionalis) and tricolored bat
(Perimyotis subflavus) have been previously addressed through a Programmatic
Biological/Conference Opinion. We also concur that the action will have no effect on all other
federally listed species. We believe that the requirements of Section 7(a)(2) of the ESA have been
satisfied. We remind you that obligations under Section 7 consultation must be reconsidered if. (1)
new information reveals impacts of this identified action that may affect listed species or critical
habitat in a manner not previously considered in this review; (2) this action is subsequently modified
in a manner that was not considered in this review; or (3) a new species is listed or critical habitat
determined that may be affected by this identified action. If you have any questions regarding our
response, please contact Mr. Gary Jordan at gary iordan&fws.gov. .
Sincerely,
for Pete Benjamin
Field Supervisor

Electronic copy:
Tom Steffens, USACE, Washington, NC
Travis Wilson, NCWRC, Creedmoor, NC

Agent Authorization

Roy COOPER
GOVERNOR
STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
AGENT AUTHORIZATION FORM
Project Description: Projects Throughout NCDOT Division 2
J.R. "JOEY" HOPKINS
SECRETARY
Project Location: Beaufort, Carteret, Craven, Greene, Jones, Lenoir, Pamlico, Pitt Counties
The undersigned, do hereby authorize:
Chris Rivenbark of RK&K
(Contractor / Agent) (Name of consulting firm)
to act on my behalf and take all actions necessary for the application, issuance, and acceptance of
this permit or modification.
I hereby certify the above information submitted in this application is true and accurate to the best
of my knowledge.
Heather C. Lane, P.E.
Division Project Development Engineer
Project Development Unit
1037 W.H. Smith Blvd
Greenville, NC 27835
Docu Signed by:
Authorized Signature:
6, t^u.
A1154E9594D7468...
Date: 12/20/202 3