20081326 Ver 1_Email_20110207

ur (n4w?
Ridings, Rob
From: Ridings, Rob
Sent: Monday, February 07, 2011 9:18 AM
To: Murray, Christopher A
Cc: Capehart, Cadmus; Pearson, Donald R; Gaddy, Michelle H; 'Alsmeyer, Eric C SAW'
Subject: RE: Construction issue on widening of T.W. Alexander (U-3309A) in Durham County;
WebDAV SAW-2008-01875 (UNCLASSIFIED)
Chris,
I am fine with what you propose here. I agree it can be covered under NW 13.
Also, the project was issued prior to the Jordan Buffer Rules .... and in my view, this minor
change will not trigger them to be in effect here.
Let me know if you need anything else,
Rob
-----Original Message-----
From: Alsmeyer, Eric C SAW fmailto:Eric.C.Alsmeyer(dusace.army.mill
Sent: Monday, February 07, 2011 9:02 AM
To: Murray, Christopher A; Ridings, Rob
Cc: Capehart, Cadmus; Pearson, Donald R; Gaddy, Michelle H
Subject: RE: Construction issue on widening of T.W. Alexander (U-3309A) in Durham County;
WebDAV SAW-2008-01875 (UNCLASSIFIED)
Classification: UNCLASSIFIED
Caveats: NONE
Chris: I concur with using NWP 13 for the action described below. No PCN is needed.
Please reply or call if you have any questions or if I may serve you in any other way.
We would appreciate your feedback on how we are performing our duties. Our automated Customer
Service Survey is located at:
http://per2.nwp.usace.army.mil/survey.html. Thank you for taking the time to visit this site
and complete the survey. (Paper copies available upon request).
Eric
Eric Alsmeyer
Project Manager
Raleigh Regulatory Field Office
US Army Corps of Engineers, Wilmington District
3331 Heritage Trade Drive, Suite 105, Wake Forest, NC 27587
Tel: [phone], x23
Fax: [phone]
Regulatory Homepage: http://www.saw.usace.army.mil/WETLANDS
-----Original Message-----
From: Murray, Christopher A fmailto:cmurray(@ncdot.govl
Sent: Friday, February 04, 2011 2:34 PM
To: Alsmeyer, Eric C SAW; Ridings, Rob
Cc: Capehart, Cadmus; Pearson, Donald R; Gaddy, Michelle H
Subject: Construction issue on widening of T.W. Alexander (U-3309A) in Durham County
1
Reference:'
USACE Action ID No.: Not available as permit not issued for this project.
NCDENR-DWQ Project No.: 20081326
Eric and Rob,
A construction issue has come up on this project that requires your attention. The plans
indicate the following near 41+20 to 42+20 Lt:
1. Installation of a small rip rap pad at the outlet of a 24 inch pipe structure 2.
Construction of a shallow lateral base ditch at the pipe outlet at a 90 degree angle.
This is clearly indicated on the attached plan sheet. However, note that the limits of the
pond/stream edge are not accurately depicted on the plan sheet.
Discussions with the RE and ARE indicate that there will be a very high potential for the
back slope of the ditch failing over time due to the high amount of runoff that is moved
through the pipe system. There is no real way to turn the runoff from the pipe at a 90
degree angle and provide adequate stability to the back slope of the ditch directly adjacent
to the pond/stream edge.
The RE suggests to stabilize the area by open cutting the ground at the pipe outlet and then
outlet directly to the pond/stream edge. Note that Class II rip rap would be installed
countersunk in the flow line of the pipe at the pond/stream edge and a small amount of rip
rap would be installed on the adjacent pond/stream edge for stability. This is approximately
depicted on the two attachments.
This proposed action will result in approximately 30 linear feet of new permanent fill
impacts to the pond/stream edge. Note that this project is located in the Cape Fear River
Basin/Jordan Lake Watershed. However, the project was never designed to comply with the new
Cape Fear buffer rules due to the age of the design. We have discussed this issue for
several months, to come up with some type of alternative that would avoid impacts to the
pond/stream edge. Unfortunately, we can not come up with another option, primarily due to
the location of the pond/stream at the pipe outlet.
Please review this information and advise if this action can be approved via email using NWP
13/WQC 3689.
Thanks,
Chris Murray
Email correspondence to and from this sender is subject to the N.C. Public Records Law and
may be disclosed to third parties.
Classification: UNCLASSIFIED
Caveats: NONE
2.
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U-330A near 41+20 to 42+20 Lt
Plans indicate construction of a small rip rap pad and a lateral base ditch at a 24 inch pipe outlet.
Note that runoff throuoh the pipe structure would eventually cause a failure of the back slope
adjacent to the pond/stream edge.
Construction of a lateral base ditch

e

Installation of a
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IN -.2 ?-IXAI 11 'd
r
We propose to open cut to the pond ede and install a rip rap pad at the outlet of the pipe that
will tie to the adjacent pond stream edge. Tlie rip rap in the flow line at the pipe outlet will he
countersunk.

Approx. limits of open cut