20130223_U-2524C Greensboro Western Loop from S_ of SR 2137 to N_ of US 220_20190819

Carpenter, Kristi
From: Thomson, Nicole J
Sent: Monday, August 19, 2019 4:30 PM
To: [e-mail]; Norton, April R
Cc: Cvijetic, Bojan; Della Moore; Mitch Wimberley; Snell, William H; Parker, Jerry A
Subject: RE: [External] U-2524C Greensboro Western Loop from S. of SR 2137 to N. of US 220
Attachments: 20190819_094444jpg; 20190819_094446jpg; 20190819_094509jpg; 20190819_
094555jpg; Proposed Bank Stabilization repair.pdf
Good afternon everyone -
This morning I met Bojan at the project site and reviewed the area of bank scour. For location purposes, I've included a
screen grab (below) from google maps indicating the approximate location of the bank loss. The area looks quite a bit
different now; there is an overpass and the construction in this area is done and the vegetation is coming in nicely.
I've attached pictures of what the bank failure looks like. As you can see, it's not from overland flow — this is bank failure
resulting from Horsepen Creek flooding and receding in recent months. As also evidenced in the pictures (and from
what we've seen from previous visits), stabilization of this area has been attempted by others in the past (note the
concrete "groins" that litter the area). The area in question is about 6-8 feet into the bank (landward) and
approximately 15-20 feet in length. The department is proposing to repair this bank scour with Class 1/11 rip rap. We
would lay back and clean up the failed slope, install geotextile (to be lapped on the bank, top and bottom and keyed in
18"), and then install Class 11 rip rap (with Class I or Class B filling in any voids as necessary) which will also be keyed in at
the top of bank and the toe where the bank meets the stream channel. It is the intention that this work will be done
from the land utilizing minimal land disturbing equipment. Any areas adjacent to the stream bank would be re -seeded
as necessary. The contractor has already left this particular site (as the work has been completed) but will be back in
September to address any supplemental seeding that the Division requires. We anticipate that they would address this
area and the repairs at the same time.
Please let us know if this approach is sastifactory to both the USACE and DWR and if formal notification to use NWP 13
for bank stabilization is required.
Thank you for your assistance.
Nikki

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From: Bailey, David EC|VUSARMYCESAVV(USA)«David.E.Bai|[e-mail]|>
Sent: Friday, August 16,ZU199:09AM
To: Thomson, Nicole J <[e-mail]>; Norton, April R <[e-mail]>
Cc: [Yijetic,Bnjan<bcvijetic@ncdnt.8nvx;Della Moore <dmonre@rkkzonnx;Mitch VVimber|ey
<MVVinnber|ey@k|einfe|der.cnnn>; Snell, William H<m/sne||@ncdot.8ov>
Subject: RE: [External] U-2524C Greensboro Western Loop from S. of SR 2137 to N. of US 220
email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
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Hey Nikki, and sorry for the very long delay in my response. For issues generally in NCDOT's work area, but where there
were unstable stream banks pre -dating NCDOT's project, I would think that you could stabilize the bank under NWP 13
due to independent utility from the U-2524C project.
If you could send me the basic info about the problem (location, etc.) and the proposed solution (including linear feet of
bank to be stabilized and general design), I could let you know if the project would fit NWP 13 and whether or not it
would require notification via PCN.
-Dave Bailey
David E. Bailey, PWS
Regulatory Project Manager
US Army Corps of Engineers
CE-SAW-RG-R
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Phone: [phone], Ext. 30.
Fax: [phone]
Email: [e-mail]
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.
From: Thomson, Nicole J [mailto:[e-mail]]
Sent: Thursday, June 27, 2019 3:31 PM
To: Bailey, David E CIV USARMY CESAW (USA) <[e-mail]>; Norton, April R
<[e-mail]>
Cc: Cvijetic, Bojan <[e-mail]>; Della Moore <[e-mail]>; Mitch Wimberley
<[e-mail]>; Snell, William H <[e-mail]>
Subject: [Non-DoD Source] FW: [External] U-2524C Greensboro Western Loop from S. of SR 2137 to N. of US 220
Afternoon everyone!
Della and I spoke about this project on Monday and it slipped my mind until today when I saw her again.
The spot described below is adjacent to an area we've had scour issues with before. This stretch of Horsepen Creek has
traditionally unstable banks (as evidenced by structures on the banks that predate DOTS project). As you can see in the
pictures, portions of the bank have sloughed off into the Creek. The Division would like to propose to fix them, however
this would require some instream work to retrieve the bank material and to restabilize the area. We no longer have an
active permit however, I would think this would fall under the condition requiring that downstream water quality is not
affected, even post construction. Do you agree? I'm not entirely sure what the best stabilization method would be —
possibly use coir fiber matting? I don't know if rip rap in that spot would be appropriate. I'm open to suggestions.
Thanks and please let me know what you think.
Nik
From: Della Moore <[e-mail]>
Sent: Monday, June 24, 2019 4:59 PM

To: Thomson, Nicole J <[e-mail]>
Subject: [External] U-2524C Greensboro Western Loop from S. of SR 2137 to N. of US 220
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
ff,[e-mail]
Project #: 34820.3.GVS5
Della Moore
Environmental Assistant Engineer
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1101 East Wendover Ave, Suite 200
Greensboro, NC 27405
336-334-3515P 1 443-983-1580 C
Blockedwww.rkk.com
Responsive People I Creative Solutions
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From: Della Moore
Sent: Monday, June 24, 2019 4:45 PM
To: [e-mail]
Subject: Fwd:
Hey Nikki here are Aaron's comments for the site I was talking about for repair.
-Noted SF undermine and erosion of the bank of Horsepen Creek under -RPAY4- vicinity Sta 9+/- -RPAY4-.
Recommend consulting Jerry Parker to determine if remedial efforts are needed. Also, recommend removing
this section of SF and replacing with a coir fiber wattle barrier.
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From: Rasheeda Moore <[e-mail]>
Date: June 24, 2019 at 4:39:10 PM EDT
To: "[e-mail]" <[e-mail]>
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