20151247 Ver 1_Maintenance Site_20160711

Carpenter,Kristi
From:Ridings, Rob
Sent:Monday, July 11, 2016 9:19 AM
To:Montague, Heather
Subject:Re: SR 2132 Dean Ave (Wake County) - Maintenance Site
Attachments:SR 2132 Dean Ave Wake 07-08-16.jpg
Heather,
If the COE agrees then I’m good with it. As long as the rock is pressed in low enough not to impede low-flow movement
of aquatic life, I got no issues.
Thanks

Rob Ridings
Environmental Specialist
Transportation Permitting Unit, Division of Water Resources
NC Department of Environmental Quality

919-707-8786 office
[e-mail]

th
512 North Salisbury Street, 12 Floor
1617 Mail Service Center
Raleigh, NC 27699

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

From: Montague, Heather W
Sent: Friday, July 08, 2016 4:39 PM
To: Ridings, Rob <[e-mail]>; Alsmeyer, Eric C SAW ([e-mail])
<[e-mail]>
Cc: Dunigan, Jason T <[e-mail]>; McCaskill, Joseph J <[e-mail]>; Young, Joshua M
<[e-mail]>; Harper, Aaron A <[e-mail]>
Subject: SR 2132 Dean Ave (Wake County) - Maintenance Site

RE: NCDWR Project No. 20151247
USACE Action ID: non-reporting NWP 3 and NWP 13

Rob and Eric-

1

This pipe replacement project is underway. The proposal for the channel change on the outlet was to rip rap only the
banks. Given the space limitations (a retaining wall on one side of the creek and large trees that would have to be cut on
other side), the equipment has to be operated from the roadway and straight down the slope making armoring only the
banks of a newly cut channel next to impossible from that angle. Also there is quite a grade change from the pipe outlet
down to the tie in point. Therefore in order to provide a stable finished project and to minimize over all disturbance, we
propose to rock the entire length of this channel change including the base. The rock in the flow line will be pressed as
tight as possible. This rip rap plus natural sand moving through the system should create a nice stream bottom. On the
inlet the area is so flat that water will naturally flow into the new pipe without having to cut and armor a new channel. I
wanted to make you aware of this constructability issue and need for changes. This project should still meet the
conditions for using a NWP 3 and NWP 13 with no formal permit modification. I am providing you with a revised permit
sketch for your records and concurrence.

Heather W. Montague

Environmental Specialist

Division 5

North Carolina Department of Transportation

252 598 5106 office

919 691 1596 mobile
[e-mail]

2612 North Duke Street

Durham, NC 27704

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.
2

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