20231724 Ver 1_USACE Correspondence_20240102

From:
Shaver, Brad E CIV USARMY CESAW (USA)
To:
Baker CIV Jessi O
Cc:
Meilinaer, Michael J
Subject:
[External] SAW 2007-03406 2nd Battalion Project
Date:
Tuesday, January 2, 2024 10:22:05 AM
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Jessi,
Good morning and Happy New Year. This will be the first of 3 requests for more information for the
handful of applications that came in just before the Holidays. This first one is particularly difficult as
the file either is too big or corrupted so each time I work within it my computer crashes. More than
anything the responses to these clarification points should come in a response of just permit
drawings not the entire plan set.
• There is rip rap proposed on both the inlet and outlet end which is not typical on a coastal
stream that has a 1% slope. Please further explain why rip rap would be justified on both
ends.
• Rip rap is considered a permanent impact, but it may not be a permanent loss if the rip rap is
set at the same elevation of the stream bed. Its difficult to tell from these drawings whether
that is the case. The preference regarding minimization would be for the rip rap to be set at
the stream bed elevation. Please clarify through drawings the intentions here with
justification.
• Please clarify what impact is permanent and temporary as the PCN makes no note of
temporary impact associated with the stream but the drawings contradict.
• A portion of Regional conditions 9 is below:
c. Culverts shall be designed and installed in such a manner that the original stream
profiles
are not altered and allow for aquatic life movement during low flows. The dimension,
pattern,
and profile of the stream above and below a pipe or culvert shall not be modified by
widening
the stream channel or by reducing the depth of the stream in connection with the
construction
activity. The width, height, and gradient of a proposed culvert shall be such as to
pass the
average historical low flow and spring flow without adversely altering flow velocity. If
the width
of the culvert is wider than the stream channel, the culvert shall include multiple
boxes/pipes,
baffles, benches and/or sills to maintain the natural width of the stream channel. If
multiple
culverts/pipes/barrels are used, low flows shall be accommodated in one
culvert/pipe and
additional culverts/pipes shall be installed such that they receive only flows above
bankfull.
• Please explain how you the proposed culvert will maintain the pattern of the stream when it

appears there are channel changes coming into and out of the culvert inlets and outlets. Can
the pipe be extended and realigned in order to maintain the pattern of the stream through
the project? If it can not then justification will be necessary as a waiver from this regional
condition will be necessary.
• The permanent pipe run is 88' but permanent impact totals 140', why? In the spirit of
minimization, the stream impacts should not extend much beyond the permanent pipe
length, please explain further or clarify?
If you have any questions regarding this request for more information or seek to set up a call to
clarify any points, please let me know how I may assist. Please have these points clarified or
corrected within 3 weeks (January 23, 2024) or we will need to withdraw the application.
Thanks,
Brad
Brad Shaver
Project Manager
US Army Corps of Engineers
69 Darlington Ave
Wilmington, NC 28403
[phone]
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