20240323 Ver 1_More Info Requested_20240415 (2)

From:
Keith Hoilman
To:
Fuemmeler, Amanda J CIV USARMY CESAW (USA)
Subject:
[Non-DoD Source] Fwd: Cavagnaro Culvert Installation PCN - Add"I Information Needed
Date:
Friday, March 15, 2024 10:31:06 AM
Attachments:
R CAVAGNARO FINAL.zio
Sent from my Whone
Begin forwarded message:
From: Lydia Hoilman <[e-mail]>
Date: March 15, 2024 at 10:26:20 AM EDT
To: Keith Hoilman <[e-mail]>
Subject: Re: Cavagnaro Culvert Installation PCN - Add'1 Information
Needed
Hey Amanda,
Thank you for meeting with me last week. I have attached the information you requested
below and answers to to questions listed.
1. We are waiting on a 401 application fee request from DEQ, per Mr. Tyler Hickman (
Asheville office). Mr. Hickman stated we should receive the fee request in the next fee days
and once paid the application will begin processing and assigned a reference number.
2. 1 have attached a proposed site plan for phase 2 of the Foxcrest project.
3. No wetlands will be disturbed in the project area. As we discussed , area above the
project was my only concern.
4. i have included culvert sizing and design, 100 year flow rate using the rational method,
flow rate calculations, headwall design and maps. Also a letter from The Town of Beech
Mountain requesting HDPE pipe. We had discussed a concrete head wall construction, but i
have included a stack stone design to keep the area more natural looking. I also completed
a current flow rate , using the toss method, which resulted in a 23 cubic feet per second
flow rate.
5. The 8 to 10 trees have been cut down and cleared to avoid any species impacts.
Please let me know if you need anything else.
Thank you for your assistance,
Keith Hoilman
On Saturday, March 9, 2024 at 12:11:23 PM EST, Keith Hoilman

<[e-mail]> wrote:
Sent from my iPhone
Begin forwarded message:
From: "Fuemmeler, Amanda J CIV USARMY CESAW (USA)"
<[e-mail]>
Date: March 8, 2024 at 2:52:53 PM EST
To: Robert Cavagnaro <[e-mail]>
Cc: Keith Hoilman <[e-mail]>, "Hickman, Tyler N"
<[e-mail]>, "Leslie, Andrea X
<[e-mail]>
Subject: Cavagnaro Culvert Installation PCN - Add'I Information Needed
Hi Robert,
I was able to meet with your agent (Kieth Hoilman) the other day to look
at the crossing. Based on that discussion and review of the application
submitted, there will need to be additional information submitted to
continue the review of your application which is summarized below. I've
also attached an aerial map and photos along with the plans you sent
marked up with a little more clarification as to the crossing location in
case Tyler has questions.
1. The PCN you submitted is for both a 404 permit (myself) and the
401 (Tyler). We have started processing it but I don't see where it
has been logged in/currently under review with the 401 folks so
you may want to check with them. We will need their 401
certification if an Individual Certification is required prior to
issuance of our permit. Note: the permit you are applying for is a
Nationwide Permit #29. Please contact Tyler for more information
related to the 401 approval process.
2. This appears to be a crossing to facilitate construction of additional
phases of a previously developed parcel. Please provide more detail
on future plans for this phase (location of road/lot layout) so that
we can determine if any additional impacts to streams/wetlands
would occur as a result of this future development.
3. Your plans show wetlands but I wasn't seeing where these could be
when I was out. Do you know who/when identified these wetland
areas/how they got on to the plans you provided?
4. A detailed plan will need to be submitted that shows the culvert
details (cross-section, plan view) and pipe being buried at least a
foot. You are proposing a 48-inch diameter pipe for 60-feet in

length. I discussed with Keith my concern that pipe size may be too
small and how it will be able to be buried considering the bedrock
(see photos). You will need to address how you determined culvert
size, if it will be able to be buried and if the culvert length/impact
can be reduced. There also may be issues/concerns with using a
HDPE culvert versus metal corrugated due to the slope in the
stream. I am copying Andrea Leslie with the NC Wildlife Resource
Commission on this since we also have to coordinate with their
agency so that she can provide comments when the plans come.
5. Our permit requires coordination with USFWS relating to listed
threatened/endangered species specifically bat populations in this
area. It appears as though approximately 8 trees will be removed
that could provide summer roosting habitat. Please provide a
construction schedule so that we can determine if there will be
impacts to these species as part of our required coordination.
Note: typically if trees are down/cleared by March 315t (before
summer roosting) then this may be acceptable to USFWS or you
may potentially need to wait until after October 15 to remove
trees.
Once we receive this information, we can continue to review your
application. Feel free to reach back out with any questions, thanks.
Amanda Jones
Project Manager
US Army Corps of Engineers
Asheville Regulatory Field Office
828-271-7980 ext. 4225