20200187 Ver 1_Re_ Avery 1 stormwater alteration request_Add info_20200911

Wanucha, Dave
From:Hining, Kevin J
Sent:Monday, September 14, 2020 11:49 AM
To:Wanucha, Dave
Subject:Re: Avery 1 stormwater alteration request)_Add info
Hey Dave,

There is an existing ditch that carries runoff from the road that leads to the proposed box. So, we will just continue that
ditch to the waters edge, and we will line the new section of ditch we create with rip rap. Hope that makes sense. Also,
there is a proposed rip rap pad at the waters edge, which we will still install, to further dissapate flows before the storm
water enters the river.

Thanks again!

Kevin

Kevin Hining
Division 11 Environmental Officer
NC Department of Transportation

336-903-9129 office
828-386-7202 cell
[e-mail]

This message sent from mobile device

From: Wanucha, Dave <[e-mail]>
Sent: Monday, September 14, 2020 11:32 AM
To: Hining, Kevin J <[e-mail]>
Subject: RE: Avery 1 stormwater alteration request

Hey Kevin,
We are ok with the change. The riprap ditch may help to reduce velocity vs. proposed pipe.
For clarification, you intend to install a riprap lined ditch instead of the pipe and eliminate the box?
And, instead of the box there will be riprap? How will stormwater be conveyed to the riprap? The plans do
not show a ditch of any kind or maybe it is sheet flow off the road?.

Dave W.

Division of Water Resources
401 & Buffer Transportation Permitting
NC Department of Envirionmental Quality

336-776-9703 office
336-403-5655 mobile
[e-mail]

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

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time.

From: Hining, Kevin J <[e-mail]>
Sent: Friday, September 11, 2020 4:25 PM
To: Wanucha, Dave <[e-mail]>
Subject: Avery 1 stormwater alteration request

Hey Dave,

Our project manager and contractor for Avery bridge #1 has requested a change to the permitted plans, regarding a
stormwater device. The requested change is in regard to structure 409, which is a drop inlet/box and 15” RCP that will
deliver stormwater to rip rap on the bank and into the Linville River. I’ve attached the plans and the 401 permit above,
and a snapshot of the area below (see black oval).

They would like to replace the box and 15” pipe with a rock lined ditch. That’s actually what is in place now, and it
seems to be functioning well, even with all the rain we have had in recent weeks. We still plan to have the rip rap on the
bank, to dissipate the stormwater that leaves the ditch. I figured replacing a pipe with a ditch would be preferred – not
that either is great habitat, but I’m assuming the rock lined ditch will be better habitat for critters that the 15”
pipe. Since it was part of the plans that were permitted with the 401, I wanted to seek your approval before making the
change. Also, wanted to clarify that it is a stormwater measure, so no jurisdictional features should be impacted by the
change.

Let me know if you need additional information.

Thanks, (and this should be my least email to you for the day!:))

Kevin

2

Kevin Hining
Division 11 Environmental Officer
North Carolina Department of Transportation

828-386-7202 cell
[e-mail]

801 Statesville Rd.
PO Box 250
North Wilkesboro, NC 28659

Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
_____________________________________________________________

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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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