20200628 Ver 1_RE_ _External_ RE_ U-5760 retaining walls T&E Surveys_20220128

Wanucha, Dave
From:Williams, Andrew E CIV USARMY CESAW (USA) <Andrew.E.Williams2
@usace.army.mil>
Sent:Friday, January 28, 2022 1:29 PM
To:Euliss, Amy; Wanucha, Dave
Cc:James, Connie K; Blanton, William A; Jones, Matthew W
Subject:RE: \[External\] RE: U-5760 retaining walls T&E Surveys
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
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Amy,

Thanks for the update. Good job on keeping up with the T&E at these sites.

Andrew Williams
Regulatory Project Manager
Regulatory Division Office
US Army Corps of Engineers, Wilmington District
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Office Tel: [phone], x26

The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we
continue to do so, please complete the Customer Satisfaction Survey located at our website at
https://regulatory.ops.usace.army.mil/customer-service-survey/
to complete the survey online.

From: Euliss, Amy <[e-mail]>
Sent: Friday, January 28, 2022 12:26 PM
To: Wanucha, Dave <[e-mail]>; Williams, Andrew E CIV USARMY CESAW (USA)
<[e-mail]>
Cc: James, Connie K <[e-mail]>; Blanton, William A <[e-mail]>; Jones, Matthew W
<[e-mail]>
Subject: \[URL Verdict: Neutral\]\[Non-DoD Source\] RE: \[External\] RE: U-5760 retaining walls and value engineering

Hi guys. I wanted to provide you an update on the forthcoming permit modification for U-5760. Since Schweinitz’s
sunflower was added to the project area in IPAC, we’ll need to do the surveys prior to submitting this modification. This
will happen in the 2022 survey window (August 15-Oct 31). You should expect a permit modification request once those
surveys have been completed.

Amy

From: Euliss, Amy
Sent: Wednesday, December 8, 2021 10:38 AM
To: Wanucha, Dave <[e-mail]>; Williams, Andrew E CIV USARMY CESAW (USA)
<[e-mail]>
Cc: James, Connie K <[e-mail]>; Blanton, William A <[e-mail]>; Jones, Matthew W
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<[e-mail]>
Subject: RE: \[External\] RE: U-5760 retaining walls and value engineering

Thanks again for your time today. We’ll proceed with the design revisions as discussed, and submit a permit
modification application once the revised permit drawings have been finalized. We’ll include a discussion of the history
and the need for revisions. We’ll also summarize maintenance and construction feasibility, cost comparisons, culvert
length relative to aquatic passage and long term safety concerns.

Amy

From: Euliss, Amy
Sent: Tuesday, November 30, 2021 10:03 AM
To: Wanucha, Dave <[e-mail]>; Williams, Andrew E CIV USARMY CESAW (USA)
<[e-mail]>
Cc: James, Connie K <[e-mail]>; Blanton, William A <[e-mail]>
Subject: RE: \[External\] RE: U-5760 retaining walls and value engineering

Thanks all. I sent out a calendar invite for Teams meeting on 12.6 at 1.

From: Wanucha, Dave <[e-mail]>
Sent: Tuesday, November 30, 2021 9:57 AM
To: Williams, Andrew E CIV USARMY CESAW (USA) <[e-mail]>; Euliss, Amy
<[e-mail]>
Cc: James, Connie K <[e-mail]>; Blanton, William A <[e-mail]>
Subject: RE: \[External\] RE: U-5760 retaining walls and value engineering

Amy,
I’m available all the times that Andy listed except that today (Nov 30) I’m out from 2:30 – 5:00 and Thurs Dec
2, I’m out from 2:00 – 5:00.

Dave W.

Division of Water Resources
401 & Buffer Transportation Permitting
NCDOT Divisions 9 and 11
NC Department of Environmental Quality

336-403-5655 Mobile
336-776-9703 Office
[e-mail]

NC DEQ Winston Salem Regional Office
450 West Hanes Mill Road, Suite 300
Winston Salem, NC 27106

From: Williams, Andrew E CIV USARMY CESAW (USA) <[e-mail]>
Sent: Monday, November 29, 2021 3:52 PM
To: Euliss, Amy <[e-mail]>; Wanucha, Dave <[e-mail]>
Cc: James, Connie K <[e-mail]>; Blanton, William A <[e-mail]>
Subject: \[External\] RE: U-5760 retaining walls and value engineering

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CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.

Amy,

I am available:

30 Nov—1-4:30
1 Dec—8-12 and 3-4:30
2 Dec –8-4:30
6 Dec—1-4:30
8 Dec—8-4:30
9 Dec—8-4:30
10 Dec 8-4:30

If any of those times don’t work, just let me know and we can look further out.

Andrew Williams
Regulatory Project Manager
Regulatory Division Office
US Army Corps of Engineers, Wilmington District
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Office Tel: [phone], x26

The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we
continue to do so, please complete the Customer Satisfaction Survey located at our website at
https://regulatory.ops.usace.army.mil/customer-service-survey/
to complete the survey online.

From: Euliss, Amy <[e-mail]>
Sent: Monday, November 29, 2021 2:31 PM
To: Williams, Andrew E CIV USARMY CESAW (USA) <[e-mail]>; Wanucha, Dave
<[e-mail]>
Cc: James, Connie K <[e-mail]>; Blanton, William A <[e-mail]>
Subject: \[Non-DoD Source\] U-5760 retaining walls and value engineering

Andy and Dave,

NCDOT received an Individual Permit in August 2020 to construct Big Mill Farm Road widening and extension in Forsyth
County. I believe you both attended the interagency meeting earlier this month where our Value Engineering studies
were discussed. We recently had a Value Engineering Study conducted on the Big Mill Farm Road project (U-5760) in
Forsyth County. The concept of reducing the wall came up during the value assessment. Following the study, our
Geotech folks further investigated the cost of the retaining wall. The wall would be @60’ tall (52,500 sq ft) and would
cost 5 million dollars to build. It was determined that reducing the retaining wall height to 21.5’ (11,200 sq feet) would
result in an additional 116’ of permanent stream impacts, increasing our mitigation costs by approximately 140,097.84
(116’ at a 2:1 ratio). The lower wall offers a reduction of $3,717,000. Additional fill will offset this cost slightly, but
borrow is estimated at $7/CY. If we increased the borrow through this area by 25% that would be another 50,000 CY, or
$350,000 so with the $141,000 additional mitigation cost, we would still be saving over $3,000,000. Additionally a
shorter wall height is preferred by construction and maintenance staff as it will be easier to construct and maintain.
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We want to discuss the feasibility of this change from a permitting perspective prior to investing in the full redesign
cost. Please let me know your availably to discuss via a MS Teams call over the next couple of weeks.

For your reference, I have attached a preliminary plan sheet showing the lower wall height and proposed
impacts. Please note when you review the plan sheet (attached), it shows a driveway pipe. That pipe is no longer
there. I’ve attached a proposed revision plan sheet and a photo of the stream at the proposed impact site showing that
the pipe is no longer present.

I have also linked the permit application and the permit approvals below for your reference.

Permit application: https://xfer.services.ncdot.gov/pdea/PermApps/U-5760%20Forsyth%20May%207%202020.pdf
Permit approvals: https://xfer.services.ncdot.gov/pdea/PermIssued/U-5760%20Forsyth%20August%2010%202020.pdf

Thanks in advance.

Amy Euliss
Division 9 PDEA Engineer
North Carolina Department of Transportation

336 747 7802 office
[e-mail]

375 Silas Creek Parkway
Winston Salem, NC 27127-7167

Email correspondence to and from this sender is subject to the N.C. 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.
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