20140333 Ver 1_RE: Holman Mill close-out work plan_20230206

Baker, Caroline D
From: Homewood, Sue
Sent: Monday, February 20, 2023 7:41 AM
To: Baker, Caroline D
Subject: FW: [External] RE: Holman Mill close-out work plan
Laserfiche Upload: email
DWR#: 20140333
Doc Date: 2/6
Doc Type: Mitigation — Mitigation Information
Doc Name: General topic of email title
Thanks,
Sue Homewood (she/her/hers)
401 & Buffer Permitting Branch
Division of Water Resources
Sue. Homewood(@ncdenr.eov
336 813 1863 mobile
919-707-3679 office *new*
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Angela Allen <aaIlen@wild landseng.com>
Sent: Monday, February 6, 2023 11:35 AM
To: Tugwell, Todd J CIV USARMY CESAW (US) <[e-mail]>; Dow, Jeremiah J
<[e-mail]>; fmr.erin.b.davis <[e-mail]>
Cc: John Hutton <[e-mail]>; Jason Lorch <[e-mail]>
Subject: [External] RE: Holman Mill close-out work plan
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Todd,
We are proposing to use Class B (5-12"). 1 ran a shear stress analysis on the reach and it showed the maximum movable
particle size to be between 1.7 and 3.9 inches. We believe that this can be accomplished by hand. John and/or myself
will be onsite to sign off on the work and make sure we are comfortable that the final repair is secure enough.
Thanks,
Angela

From: Tugwell, Todd J CIV USARMY CESAW (USA) <[e-mail]>
Sent: Thursday, February 2, 2023 1:51 PM
To: Angela Allen <aaIlen@wild landseng.com>; Dow, Jeremiah J <[e-mail]>; Davis, Erin B
<[e-mail]>
Cc: John Hutton <[e-mail]>; Jason Lorch <[e-mail]>
Subject: RE: Holman Mill close-out work plan
Thanks Angela. What size rock are you proposing to use to stabilize the headcut? I'm concerned that smaller rock will
not be suitable to prevent the headcut from moving, or might be dislodged by high flows? Is this really something that
can be accomplished by hand?
Todd
From: Angela Allen <aaIlen@wild landseng.com>
Sent: Thursday, February 2, 2023 1:38 PM
To: Tugwell, Todd J CIV USARMY CESAW (USA)<[e-mail]>; Dow, Jeremiah J
<[e-mail]>; Davis, Erin B <[e-mail]>
Cc: John Hutton <[e-mail]>; Jason Lorch <[e-mail]>
Subject: [URL Verdict: Neutral][Non-DoD Source] Holman Mill close-out work plan
Todd,
Attached is the Holman work plan for the repair we discussed in the field. We plan to do the repairs on February 14tn
and remove our monitoring devices at that time. Let me know if you have any comments or questions.
Thanks,
Angela
Angela Allen, PE I Sr. Water Resources Engineer
0:919.851.9986 x106 M: 703-655-6110
Wildlands Engineering, Inc.
312 West Millbrook Road, Suite 225
Raleigh, NC 27609