20160672 Ver 1_Br 126 in Orange Co_20160721 (2)

Wrenn, Brian L
From:Wrenn, Brian L
Sent:Thursday, July 21, 2016 12:20 PM
To:Thomson, Nicole J
Subject:RE: Br. 126 in Orange Co.
Sorry about the email confusion. I thought I had sent it to the DOT address. Yes the cumulative permanent impacts
>150 lf and the fact that the stabilization is “but for the culvert,” triggered the mitigation requirement. Had the
stabilization been unrelated to the culvert installation, we would not have required the mitigation.

Thanks,
Brian Wrenn
919-707-8792

From: Thomson, Nicole J
Sent: Thursday, July 21, 2016 11:31 AM
To: Wrenn, Brian L <[e-mail]>
Subject: RE: Br. 126 in Orange Co.

I forwarded your email to myself – just an FYI, I’m never in my Raleigh office so my DOT email is the quickest way to get
to me.

Just for my own clarification/edification – DWR is requiring 1:1 mitigation on the sum total of the permanent stream
impacts because it is over 150 LF, correct? I’m asking because I’ve had other projects with streambank stabilization
(again, restricted to the banks below the OHWM) that did not require 1:1 mitigation from DWR, but the cumulative
permanent impacts were below 150 LF. I just want to make sure I get this right because in future applications, I can
address it directly.

And yes, the USACE will require, and NC DOT proposed, 2:1 mitigation ratio in the application.

Thanks!
ME

From: Nicole Thomson \[mailto:[e-mail]\]
Sent: Thursday, July 21, 2016 11:24 AM
To: Thomson, Nicole J
Subject: Fwd: Br. 126 in Orange Co.

Sent from my Verizon Wireless 4G LTE Tablet

-------- Original message --------
From: "Wrenn, Brian L" <[e-mail]>
Date: 7/21/2016 9:45 AM (GMT-05:00)
To: Nicole Thomson <[e-mail]>
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Cc: [e-mail]
Subject: Br. 126 in Orange Co.
Nikki,
Based on the application, it appears that there will be 105 lf of impact for the culvert and an additional 58 lf for bank
stabilization and flood plain bench construction with total permanent impacts equaling 163 lf. DWR will require
mitigation for the 163 lf at 1:1. Because it appears that DMS is supplying mitigation for 105 lf at 2:1 for the Corps, this
should be plenty of mitigation. I just wanted you to be aware before I issue the 401. I’ve copied David on this to verify
that 2:1 mitigation will be required for the stream impacts. If not, we’ll need a new letter from DMS detailing
acceptance of mitigation for 163 lf of impact. Thanks and let me know if you have any questions.

Brian L. Wrenn
Transportation Permitting Unit
Division of Water Resources
919-707-8792
[e-mail]

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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