20200320 Ver 1_More Info Requested_20200325

Strickland, Bev
From: Homewood, Sue
Sent: Wednesday, March 25, 2020 11:25 AM
To: '[e-mail]'
Subject: RE: [External] FW: [Non-DoD Source] Alamance Quarry Revised Plans
Hi Martin,
I hope all is well with you. Can you please provide a buffer restoration plan for the temporary impacts areas. The plan
can specify different restoration criteria for Zone 1 and Zone 2.
I'll consider the application on hold until receipt of the restoration plan. Thanks.
Sue Homewood
Division of Water Resources, Winston Salem Regional Office
Department of Environmental Quality
336 776 9693 office
336 813 1863 mobile
Sue. [e-mail]
450 W. Hanes Mill Rd, Suite 300
Winston Salem NC 27105
From: [e-mail] <[e-mail]>
Sent: Monday, March 2, 2020 11:18 AM
To: David. [e-mail]; Homewood, Sue <[e-mail]>
Subject: [External] FW: [Non-DoD Source] Alamance Quarry Revised Plans
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]
David & Sue,
I just want to let you know we submitted a Buffer Authorization request for the Alamance Aggregates Snow Camp Mine
last Friday...
This is for the road crossing using bottomless culvert
Let me know if you have questions
Thanks, Martin
From: [e-mail] <[e-mail]>
Sent: Thursday, February 27, 2020 12:03 PM
To: David. [e-mail]; Homewood, Sue <[e-mail]>
1

Cc: wyatt brown <[e-mail]>; Chad Threatt<[e-mail]>
Subject: FW: [Non-DoD Source] Alamance Quarry Revised Plans
David & Sue, I hope you are doing well.
This email is in follow up to prior email addressed to Wyatt Brown (see thread below) regarding a proposed bottomless
culvert at the Alamance Aggregates/Snow Camp Mine project in Alamance County (there is no SAW AID# for this
project).
We are currently preparing a Riparian Buffer Authorization Request for submittal to NCDWR Winston-Salem Regional
office, and would like concurrence from USACE that no authorization will be required, due to no disturbance below
OHWM. I have included Sue Homewood on this email.
I have attached the revised proposed culvert plan/cross section plans which show the following:
• Elevation (591) and width (4.90' ft) of stream channel.
• Elevation (593) and width (11.0 ft) of Top of Bank (OHWM)
• Width of uplands (6.43 ft/6.57 ft) between top of bank and culvert wall
• Elevation/depth of foundations — top and bottom.
For this site, it was very apparent that the streambed was comprised primarily of cobbled rock, and hand augers outside
the channel confirmed rock (auger refusal) present at or higher than the approximate depth of the streambed. For that
reason, it is estimated the subsurface rock elevation for the footprint of the bottomless culvert is approximately the
same as the streambed elevation (591).
The design shows the concrete foundations for the culvert to be installed to a depth elevation of 589, approximately 2 ft
into and below the estimated depth to rock (591), with the top of the foundation set 591, matching the elevation of the
rock streambed. This will insure the foundations are mounted into a non-scourable rock base.
The width of channel (11.0 ft), was surveyed and is included on the cross-section, shown as measured from Top of Bank
(elevation 593). Top of Bank (also the OHWM) was determined in the field using standard USACE and NCDWR
definition. In this area, the stream channel is very defined (DWR Score = 3/Strong) and top of bank/OHWM is very clear
(approximately 2 ft above the streambed). The plans show over 6 ft of clearance from the culvert wall to top of bank,
post construction.
Based on this information, would you agree this project will avoid impacts below the OHWM and will not require
authorization from USACE, and if so, could you provide a written concurrence reply for our records?
If you have questions or need additional information, please feel free to contact me at [phone] or via email reply.
Thank you for your help with this,
Martin Richmond
From: wyatt brown <[e-mail]>
Sent: Wednesday, February 26, 2020 1:40 PM
To: Martin Richmond <[e-mail]>
Subject: Fwd: [Non-DoD Source] Alamance Quarry Revised Plans
---------- Forwarded message ---------
From: Bailey, David E CIV USARMY CESAW (USA)<[e-mail]>

Date: Mon, Sep 30, 2019 at 10:56 AM
Subject: RE: [Non-DoD Source] Alamance Quarry Revised Plans
To: wyatt brown <[e-mail]>
Cc: Homewood, Sue <[e-mail]>
Hello Wyatt, and thanks for the update. I apologize for the delay. Generally speaking, if the proposed bottomless arch
culvert and required installation do not encroach into the stream (i.e. no discharges of dredged or fill material below the
stream's ordinary high water mark [OHWM]), then no authorization is required from the Corps. However, the cross
section of the proposed "bridge culvert" provided does not show the location/outline of the stream banks and stream
bed, which makes it impossible to determine if the proposed plan would avoid impacts below the OHWM.
Also, please note that the Corps Wilmington District Raleigh Regulatory Field Office has had long experience with
bottomless arch culverts. We generally agree with NCDOT that the long-term success of such structures is significantly
enhanced when they are tied into shallow bedrock. NCDOT Division 7 does not typically pursue bottomless arch culverts
unless there is non-scourable bedrock within 5 vertical feet of the soil surface. Shading under the arch culvert leads to
die off of any remaining woody vegetation, which then leads to stream bank erosion and winnowing out from
foundation to foundation. In cases where the structures are not tied into bedrock we have seen numerous instances of
foundation undercutting, often leading to replacement with traditional culverts. If the project proposes future impacts
requiring authorization, the Corps would likely pursue compensatory mitigation given indirect impacts resulting in a
significant loss of stream function.
Please let me know if you have any questions.
-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.
-----Original Message -----
From: wyatt brown [maiIto: [e-mail]]
Sent: Saturday, August 31, 2019 7:19 PM
To: Bailey, David E CIV USARMY CESAW (USA)<[e-mail]>
Cc: Homewood, Sue <[e-mail]>
Subject: [Non-DoD Source] Alamance Quarry Revised Plans
David
I hope you are doing well. My client has decided the proposed quarry plans can be adjusted to to impact any streams or
wetlands and still be successful. Therefore I am attaching the revised plans for your concurrence and your files. We re

still proposing the bottomless culvert the for stream 3. Please review the detail of the bottomless culvert and send me
any concerns you might have.
We will be contacting Sue for approval of the stream buffer impact impact of stream 3 for the road and bottomless
culvert .
Thanks for all your help with this project.
Wyatt
Wyatt Brown, LSS, CPESC
Brown's Environmental Group, Inc
919-524-5956
Wyatt Brown, LSS, CPESC
Brown's Environmental Group, Inc
919-524-5956