20071401 Ver 3_More Info Received_20101104

WITHERS &- RAVENEL
ENGINEERS 1 PLANNERS I SURVEYORS
1410 COMMONWEALTH DRIVE, SUITE ioi
WILMINGTON, NORTH CAROLINA, 28403
[phone]
FAX [phone]
T0: NC Division of Water Quality - 4o1 Wetlands Unit
2321 Crabtree Blvd, Suite 250
Raleigh, NC 276o4
WE ARE SENDING YOU
? Shop Drawings
? Copy of Letter

DATE 11/2/10 fOBNO. 03080678.oo
ATTENTION Mr. Ian McMillan
PHONE # [phone]
RE. 211/Midway Road Improvements
Submittal of Additional Information
Submittal Of $570.oo Application Fee

- 1 0

® Attached ? Under separate cover via
? Prints ? Plans ? Samples
? Change order ? Diskette ?
? Resubmit
? Submit
? Return
COPIES DATE NO. DESCRIPTION
1 10/22/10 03080678.00 $570-oo Application Fee
1 11/2/10 0 o8o678.oo Response to Corps Request for Additional Information
1 11/2/10 0 o8o678.oo Revised Overall Impact Summa Ma
1 11/2/10 0 o8o678.oo Revised Figure C

THESE ARE TRANSMITTED as checked below:
® For approval ? Approved as submitted
? For your use ? Approved as noted
? As requested ? Returned for corrections
? For review and comment ?
? FOR BIDS DUE 20 ? PRINTS RETURNED AFTER LOAN TO US
REMARKS: n 0 v Lg
NOV 4 20
Signature: OEM-WATER QUALITY
ti MATER BRANCH
Date:
COPY TO: File
the following items:
? Specifications
copies for approval
copies for distribution
corrected prints
SIGNED: Troy Beasley
if enclosures are not as noted, kindly notify as at once.
A
WITHERS RAVENEL
ENGINEERS I PLANNERS I SURVEYORS
November 2, 2010
Mr. Ian McMillan sPAID
NC Division of Water Quality
2321 Crabtree Blvd
Suite 250
Raleigh, NC 27604
RE: 211 /Midway Road Improvements
Mr. McMillan:
This letter is in response to your letter, dated October 28, 2010, returning the $570.00
application fee and requesting a $240.00 application fee. Based on our phone
conversation on November 1, 2010, the impacts from the proposed road improvement
project are cumulative with the 211/Midway Commercial Center Project, and stream
impacts will exceed 150 If, and will require a $570.00 application fee. Therefore, I am
returning the original check for $570.00.
Also, W&R identified an error in the calculations for the wetland impacts.
Approximately 23 sq ft of wetland impacts from rip-rap was not included in the original
impact calculations. Due to the small increase of wetland impacts, the 0.16 acres of
wetland impacts requested has not changed and the Wetland Impact Table has not been
revised. The Wetland Impact Map Summary and Figure C have been revised and have
been enclosed with this letter.
Also, I am providing a copy of our response to the Corps Request for Additional
Information for your consideration in review of the PCN.
Please feel free to contact me if you have any questions or require additional information to
complete your review of the PCN,
Sincerely,

Troy Beasley
Environmental Scientist
Withers and Ravenel
2G,fl
KE11AI' ANDWATER
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RAtrc?f
1410 Commonwealth Drive, Suite 1o1 Wilmington, North Carolina 28403 tel: [phone] fax:[phone]
www.withersravenel.com
WITHERS RAVENEL
ENGINEERS I PLANNERS 1 SURVEYORS
MEMORANDUM
TO: Troy Beasley - Withers & Ravenel
CC: Nick Garrett - Nick Garrett Development
FROM: Chris Johnson, PE
DATE: November 1, 2010
PROJECT: 211/Midway Road Widening Improvements - Brunswick County, NC
SUBJECT: 404/401 Permitting
Pursuant to the review comments by the US Army Corps of Engineers as received via email dated 10/28/10, we are
providing this memorandum to you to provide justification for the proposed wetland/stream impacts for the NC
211/Midway Road widening improvements project and to specifically address the USACE review comments. The
review comments and our responses (shown in blue) are as follows:
1) Please explain why the road cannot be widened to the north of or symmetrically along Highway 211. Widening
to the north of or symmetrically along 211 would avoid and/or minimize impacts to wetlands B and C.
The roadway has been widened to the north side to avoid wetlands along the owner's project frontage where
feasible. However, the portion of the road widening along NC 211 just east of the Midway Road intersection is
for adding a second eastbound lane to accommodate the proposed southbound dual left turn lanes from
Midway Road. Shifting the roadway to the north in this area to avoid wetlands is not feasible or practical since
any shifting of the roadway in this section would result in travel lanes to be misaligned between the west and
east side approaches of the intersection. In essence, avoiding the wetlands would require the entire intersection
to be relocated to the north, which would require an extreme increase in construction costs, as well as
significant impacts to other adjacent properties, one of which was just recently improved following the NCDOT
TIP project along Midway Road and Middleton Avenue. In addition, there will eventually be the need for
additional westbound lanes along NC 211 following additional development of other properties around the NC
211/Midway Road intersection. Therefore, the right of way area available north of existing NC 211 will be
needed to accommodate those additional lane(s) in the future.
2) Please justify the wetland impact associated with the placement of rip-rap along the eastern edge of wetland
C. Please explain why the rip-rap cannot be placed at the outlet of the 18" RCP outside of the wetland areas.
Please provide revised plans showing the rip-rap placed outside of the wetlands.
The existing driveway pipe requires relocation due to the road widening along NC 211 and the new 18" RCP
is the same length as the existing pipe to be removed. Rip rap is proposed at the downstream end of the 18"
RCP to reduce water velocity and dissipate energy at the pipe outlet, which will greatly reduce chances of
erosion within the upper wetland limits. However, since the wetland limits extend all the way to the toe of
slope at the existing driveway the proposed rip rap can not be shifted outside the wetlands unless the
existing private driveway is shifted further to the east. Shifting the driveway would require permission
and/or additional easements from the landowner. It would also increase construction costs and require an
additional driveway permit from NCDOT. Therefore, we respectfully request this small wetland impact (39
sf) to be permitted by the USACE and the impact maps have been modified accordingly to include the
impact as previously shown.
3) Please provide cross-sections of the impact areas. The cross-section should show the grade of the fill slopes
and compare the proposed elevations of the fill areas to the elevation of existing grades.
Cross sections have been provided as requested.
ill MacKenan Drive Cary, North Carolina 27511 tel:[phone] fax:[phone]oo8 www.withersravenel.com
4) Please provide culvert drawings/details that show the size of the proposed culverts.
Culvert drawings have been provided as requested.
5) In accordance with regional condition 3.6 of the nationwide permits, culverts greater than 48 inches should
be buried one foot below the bed of the stream. Please provide culvert drawings that depict the culverts and
the depths they will be buried. A waiver from the depth specifications can be requested in writing if you can
demonstrate that the burial of the culvert would result in more environmental damage, like channel
destabilization, head cutting, etc.
Culvert drawings have been provided as requested. Please note this project includes extension of two
existing box culverts along NC 211. The box culverts are being extended at the existing longitudinal grade,
therefore, the depth of bury will solely depend on the existing culvert slope and elevations and their
relationship to the existing stream channel grades.
We trust these responses satisfactorily address the review comments provided by the US Army Corps of Engineers.
Please feel free to attach this memorandum with your formal response letter. Should you have any questions or
require additional information, please do not hesitate to contact me.
iii MacKenan Drive Cary, North Carolina 27511 tel:[phone] fax:[phone]oo8 www.withersravenel.com
WITHERS &' RAVENEL WETLAND IMPACTS - FIGURE'C'
ENGINEERS I PLANNERS I SURVEYORS
ll1MacKenan Drive Cary,NOrtncaronnaz7sll tel:[phone] www.wi hersravene?.co m License No.G0632 TOWN OF OAK ISLAND, BRUNSWICK COUNTY, NORTH CAROLINA
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