20210513 Ver 1_USACE More Info Requested_20210602

Strickland, Bev
From: Hopper, Christopher D CIV (USA) <[e-mail]>
Sent: Wednesday, June 2, 2021 10:24 AM
To: Homewood, Sue; Sydni Law
Subject: [External] RE: Wexford SD - Request for Additional Information
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Good Morning, Sydni:
Please copy the USACE on your response to NCDWR. Also, please address the following:
1) How would the stream in Impact Area 1 be protected during construction? Similar projects often utilize a stream
pump -around or similar measure to protect downstream areas from sedimentation during construction.
2) Impact Area 2 — similar concern. The proposed culvert would be buried approximately 1 foot below the existing
grade within a wetland and at a 4.77 percent slope. Riprap proposed at the outlet of this culvert is presumably
proposed to abate anticipated scour. We are concerned about preserving soil hydrology within the upslope
wetland. Please address these concerns, and be aware that offsetting indirect impacts may be required for all
upslope wetland areas. Also please note the north arrow may be incorrect on the impact detail.
3) Lots north of Impact Area 2 (refer to Overall Impact Map 2 (CWI-1.2) appear to show irregular fill slopes abutting
the wetland edge, and bold lines that may indicate retaining wall (?) impacts within wetlands. Please provide
additional detail to document no impact would result in these areas, including any permanent or temporary
measures proposed to inform construction activities onsite.
Thanks — please let me know if there are questions.
Christopher D. Hopper
Regulatory Specialist
U.S. Army Corps of Engineers
Regulatory Division
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
[phone], Ext. 35
We would appreciate your feedback on how we are performing our duties. Our automated Customer Service Survey can
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From: Homewood, Sue <[e-mail]>
Sent: Tuesday, June 1, 2021 10:07 PM
To: Sydni Law <[e-mail]>
Cc: Hopper, Christopher D CIV (USA) <[e-mail]>
Subject: [Non-DoD Source] Wexford SD
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Hello Sydni,
I have reviewed the PCN for Wexford (Manning Ave) and have one concern. We have revised our standard "culvert
burial" requirement for pipes on steep slopes and to prevent the risk of causing headcuts in the channel we request that
if the culvert slope cannot reasonably be reduced then the culvert be installed "at grade". Please see Condition 11 in the
GC4256 as an example. Please revise the plans accordingly and submit new plan sheets (only pages with changes
please).
I will consider the application on hold until receipt of the updated plan sheets. Please let me know if you have any
questions or comments,
Thanks,
Sue Homewood
Division of Water Resources, Winston Salem Regional Office
Department of Environmental Quality
336 776 9693 office
336 813 1863 mobile
[e-mail]
450 W. Hanes Mill Rd, Suite 300
Winston Salem NC 27105
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