20141189 Ver 1_Email_20170622

Carpenter,Kristi
From: Steenhuis, Joanne
Sent: Thursday, June 22, 2017 229 PM
To: 'Shaver, Brad E CIV USARMY CESAW (US)'; Herndon, T. Mason
Subject: RE: Greenfield Lake Culvert
The DWR will concur with this.
-----Original Message-----
From: Shaver, Brad E CIV USARMY CESAW (US) [mailto:[e-mail]]
Sent: Tuesday, June 20, 2017 11:44 AM
To: Herndon, T. Mason <[e-mail]>; Steenhuis, Joanne
<[e-mail]>
Subject: RE: Greenfield Lake Culvert
Mason,
Based on the latest information supplied by NCDOT, the Corps agrees that the minor
change remains consistent with the nationwide permit program. Therefore, the Corps
will place this email exchange in the project file for future compliance. The excavated
material must be placed on highground or within a previously permitted area.
Brad
-----Original Message-----
From: Herndon, T. Mason [mailto:[e-mail]]
Sent: Tuesday, June 20, 2017 9:11 AM
To: Shaver, Brad E CIV USARMY CESAW (US) <[e-mail]>;
Steenhuis, Joanne <[e-mail]>
Subject: [Non-DoD Source] Greenfield Lake Culvert
Brad, per our phone conversation last Thursday, DOT's contractor has run into some
utility issues at Site 2 on the Greenfield Lake Culvert Replacement project
(17BP.3.R.28). The USACE Action ID # is SAW-2013-00291 and the DWR Project # is 14-
1189. The original proposal was to replace the existing 18" RCP stormwater pipe
(verified that it is actually a 24" RCP) under Burnett Blvd with a 30" RCP. The problem is
that there are two sewer lines at the outlet that dictate the pipe outlet invert, so NCDOT
is going leave the 24" RCP under Burnett Blvd alone, move the junction box back into
the roadway and stub out with a 24" under the sewer lines. The outlet invert of the
existing pipe and the proposed 24" stub will be about the same. DOT is hoping that the
existing pipe outlet has dropped a little so we can raise it a little.
The existing pipe is underwater and we do not have positive drainage at the outlet.
DOT has taken elevations of the outfall and found that the outfall has a blowhole at the
outlet with a substantial deposit extending from 0+15 to 1+38 (see attached profile).

DOT would like to remove this material at a flat grade of -0.65. This feature was
permitted as a stream, however when you & I did the field verification for U-4738 we
had the consultant add the feature to the U-4738 delineation as a tributary that
discharges into a wetland as shown in the attached JD map for U-4738 and labeled as
26TR1B1. This feature is beside Roy's Carburetor & Tune-Up Services and can be
accessed from the parking area.
Please let me know how you would like to handle this request to clean out 123 ft. (0.004
ac) of this tributary. The project was authorized under Nationwide 14, 12 & 38 which
expired on 3/18/17 but the impacts will be complete prior to the one year grace period.
Thanks and let me know if you need any additional information.
Mason Herndon
Environmental Program Supervisor
Division 3
NCDOT- Division of Highways
910-341-2036 office
910-604-0050 mobile
[e-mail]
5501 Barbados Blvd
Castle Hayne, NC 28429
Email correspondence to and from this address is subject to the

North Carolina Public Records Law and may be disclosed to third parties.
Email correspondence to and from this sender is subject to the N.C. Public Records Law
and may be disclosed to third parties.