20130517 All Versions_R-2413B site 1 overflow culvert inlet wetland impact restoration_20160509

Wrenn, Brian L
From:Robby Hoffman <[e-mail]>
Sent:Monday, May 09, 2016 12:23 PM
To:'Bailey, David E SAW'; Parker, Jerry A
Cc:Thomson, Nicole J; Moore, Byron G; Wrenn, Brian L; 'Matthews, Monte K SAW'; Smith,
Brian V; Spencer, Trevor S; [e-mail];
[e-mail]
Subject:RE: R-2413B permit site 1, overflow culvert inlet wetland impact restoration;
SAW-2013-00557 (UNCLASSIFIED)
Attachments:I-73 Culvert #2 -L- Sta. 376+40 Rt inlet 1 5-9-16 .jpg; I-73 Culvert #2 -L- Sta. 376+40
Rt inlet 2 5-9-16 .jpg
David,

I remember this discussion in the field and your email. We did not address the issue within the 1st 2 weeks as stated in
your email. I thought there were further discussions on this in the field, however I wanted to summarize.

Due to the time of year, winter, and site conditions, extremely wet and high water in the area, we elected to hold off
until better conditions allowed for this work to be completed. I thought this was discussed with the agencies but I do
not have any documentation on this discussion and I apologize if this violates your directive to us. This work was
completed a few weeks ago and I apologize for not following up. I have attached a picture of the location for reference.
The water is high due to recent rainfall last week, but I believe we have brought the grade up at the inlet in a manner
that would satisfy your concerns. Please let me know if you would like for anything additional to be done in this area
and let me know if you have any questions.

Thanks,

Robby Hoffman, PE
Assistant Resident Engineer
I-73 DB Project, R-2413A / R-2413B / I-5110 NCDOT - Division 7 Mobile Phone: [phone]

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-----Original Message-----
From: Bailey, David E SAW \[mailto:[e-mail]\]
Sent: Monday, May 09, 2016 9:20 AM
To: 'Parker, Jerry A'; '[e-mail]'
Cc: 'Thomson, Nicole J'; 'Moore, Byron G'; Wrenn, Brian L; Matthews, Monte K SAW
Subject: FW: R-2413B permit site 1, overflow culvert inlet wetland impact restoration; SAW-2013-00557 (UNCLASSIFIED)

Jerry and Robby,

1

Please see the 2nd and 3rd paragraphs of the email forwarded below, originally sent 1/14/2016 regarding R-2413B site
1. Although this was a relatively minor compliance issue, I requested the information within 2 weeks. Please send me an
update as to the status of restoring the temporary wetland impacts. Thanks.

-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]

The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we
continue to do so, please complete the Customer Satisfaction Survey located at
http://corpsmapu.usace.army.mil/cm_apex/f?p=136:4:0.

-----Original Message-----
From: Bailey, David E SAW
Sent: Thursday, January 14, 2016 10:11 AM
To: Parker, Jerry A <[e-mail]>; [e-mail]
Cc: Wanucha, Dave <[e-mail]>; Matthews, Monte K SAW <[e-mail]>;
Thomson, Nicole J <[e-mail]>; Moore, Byron G <[e-mail]>
Subject: R-2413B permit site 1, overflow culvert inlet wetland impact restoration; SAW-2013-00557 (UNCLASSIFIED)

CLASSIFICATION: UNCLASSIFIED

Jerry and Robby,

Thanks for meeting yesterday for I-5110 and R-2413AB compliance. Note that sediment loss cleanup efforts on I-5110
and R-2413B were confirmed, and that Mitigation Sites 1 (lower) and 2 (upper and lower) were installed according to
permitted plans and appeared stable. Regarding the latter, some concerns were raised about stream flow running
behind boulders at several cross vein structures, and that stream flow was weak on site 2 (upper); these issues will be
revisited as monitoring continues for success/stability.

R-2413B site 1 involves 2 box culverts installed in jurisdictional areas. Both culvert structures were installed according to
the plans, appear stable, and are in compliance. The southern-most culvert was conveying the main stream flow very
well and had filled in nicely with native bed material. The northern-most culvert was also completed successfully, with
the exception of an area of excavated wetlands at the inlet where only mechanized clearing was permitted. Presumably
the excavation was necessary to install the culvert. However, in order for this site to be fully in compliance with the
USACE permit this impact must be returned to original wetland grade and contour and stabilized.

As such, please submit a proposal to restore these temporary wetland impacts. Although details such as re-creation of a
small channel to direct wetland through-flow and the use of rock as a base layer below appropriate soils may be
allowable depending on the plan specifics, the plan must include closely matching adjacent un-impacted wetland grade
and contour, use of native wetland- or top-soil, seeding with native wetland seed mix, and stabilization with matting.
2

Please submit your temporary impact restoration plan for this area within 2 weeks of the date of this email, including
time frame for completion.

Thank you all again for your continued communication, coordination, and cooperation. 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]

The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we
continue to do so, please complete the Customer Satisfaction Survey located at
http://corpsmapu.usace.army.mil/cm_apex/f?p=136:4:0.

CLASSIFICATION: UNCLASSIFIED

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