20180542 Ver 1_USACE Beaufort 20 and Beaufort 249 Impervious Dike Changes_20181130

Carpenter,Kristi
From: Ward, Garcy
Sent: Friday, November 30, 2018 4:57 PM
To: Lane, Stephen; Steffens, Thomas A CIV USARMY
CESAW (US); Lane, Heather C
Cr. Capehart, Cadmus
Subject: RE: [External] RE: Beaufort 20 and Beaufort 249
Impervious Dike Changes (UNCLASSIFIED)
Heather,
DWR has no objection to the proposed installation of sheet piling to aid in dewatering
provided the appropriate BMP's are utilized. If the water being pumped is turbid, it will
need to go through a silt bag. Clean water can be pumped directly to the stream
provided it is done in a manner that does not create scour of the stream bed or banks.
The revised plan sheets you provided are sufficient for our records and a modification of
the permits is not required. Let me know if you have any questions. Thanks.
Garcy Ward
Environmental Senior Specialist
North Carolina Division of Water Resources
943 Washington Square Mall
Washington, NC 27889
p h : 252-946-6481
-----Original Message-----
From: Lane, Stephen
Sent: Thursday, November 29, 2018 4:44 PM
To: Steffens, Thomas A CIV USARMY CESAW (US) <[e-mail]>;
Lane, Heather C<[e-mail]>; Ward, Garcy <[e-mail]>
Cc: Capehart, Cadmus <[e-mail]>
Subject: RE: [External] RE: Beaufort 20 and Beaufort 249 Impervious Dike Changes
(UNCLASSIFIED)
I am in agreement with the Corps comments in the attached email thread. I would
consider the use of the temporary sheet piling within the footprint of areas currently
authorized for impacts, as a type of construction methodology for these two projects,
and will not require any additional permit modifications for the work. Please let me
know if I can be of any further assistance with these projects.
Thanks,
Stephen
-----Original Message-----
From: Steffens, Thomas A CIV USARMY CESAW (US)
<[e-mail]>
Sent: Thursday, November 29, 2018 4:24 PM
To: Lane, Heather C<[e-mail]>; Lane, Stephen <[e-mail]>;
Ward, Garcy <[e-mail]>

Cc: Capehart, Cadmus <[e-mail]>
Subject: [External] RE: Beaufort 20 and Beaufort 249 Impervious Dike Changes
(UNCLASSIFIED)
CAUTION: External email. Do not click links or open attachments unless verified. Send all
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CLASSIFICATION: UNCLASSIFIED
Heather,
I like the idea of using the temporary sheet piling as a means to do the work on both
Beaufort 20 and 249. It has several benefits, the most obvious being containment of the
work to a defined footprint, capture of any spills/ unconsolidated sediments etc,
reduces the temporary fill impacts (B-20) and generally an easier area to do work in.
However, I'd prefer you to use the term "temporary sheet piling" as a descriptor instead
of "impervious dike". "Dike" means fill in my terminology; and "impervious means a lot
of it, which in both these cases would pose a major problem.
I can officially approve of this temporary activity on both sites for use during temporary
(B-20) and temp/permanent construction on (B-249). If you propose to utilize this in the
future on other similar projects, please clearly identify the areas of use on the plan
sheets and in the narrative.
Thomas A Steffens
Regulatory Project Manager
US Army Corps of Engineers
2407 West 5th Street
Washington, NC 27889
(910)-251-4615
We would appreciate your feedback on how we are performing our duties. Our
automated Customer Service Survey is located at:
http://corpsmapu.usace.army.mil/cm_apex/f?p=136:4:0
Thank you for taking the time to visit this site and complete the survey.
-----Original Message-----
From: Lane, Heather C [mailto:[e-mail]]
Sent: Thursday, November 29, 2018 2:11 PM
To: Lane, Stephen <[e-mail]>; Ward, Garcy
<[e-mail]>; Steffens, Thomas A CIV USARMY CESAW (US)
<[e-mail]>
Cc: Capehart, Cadmus <[e-mail]>
Subject: [Non-DoD Source] Beaufort 20 and Beaufort 249 Impervious Dike Changes
Importance: High

Good Afternoon,
At yesterday's field scoping, I mentioned to Stephen and Garcy briefly that I would likely
be sending a request for Beaufort 20 (B-5413) regarding the addition of impervious dike
for the temporary detour bridge. The contractor is unable to install the end bents
without dewatering due to ground water and the higher water levels of the creek. It is
only anticipated at this time to be needed on the end bent 1 side; however, we have
shown impervious dike on both end bents of the temporary bridge (please see the
attached drawing). This will greatly aid in the construction and allow water to be
pumped out. The contractor plans to use sheet piles. As you know, the grade of the
detour was set to minimize the impacts to the CAMA wetlands and the jurisdictional
stream. If you have any questions please give me or Cadmus a call. My cell phone is 252-
413-8937. The contractor is currently working on the detour bridge, anything you can do
to expedite your review would be greatly appreciated.
On a separate but very similar note, we have the same issue on Beaufort 249
(17BP.2.R.85). We are also proposing to add impervious dike (please see the attached
drawing labeled impervious dike additions); however, we will need this for the
temporary detour bridge and the new bridge. The contractor is currently working on the
temporary detour bridge. Going forward, we will require impervious dike on all projects
of a similar nature.
Thanks in advance for your help!
Heather C. Lane, P.E.
Assistant Division Construction Engineer
Division of Highways - Division 2
North Carolina Department of Transportation
[phone] Greenville Office **New Number**
[phone] New Bern Office
[e-mail] <mailto:[e-mail]>
105 Pactolus Highway NC 33
PO Box 1587
Greenville, NC 27835

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CLASSIFICATION: UNCLASSIFIED