20191723 Ver 1_RE_ Request for Comments for Replace bridge #75_20200124

Wanucha, Dave
From: Hining, Kevin J
Sent: Friday, January 24, 2020 3:56 PM
To: Chambers, Marla J
Cc: [e-mail]1; Wanucha, Dave
Subject: RE: Request for Comments for Replace bridge #75 on SR 1313 with bottomless three
sided culvert
Attachments: B-4977 - UT.JPG; B-4977 UT outlet.JPG
Hey Marla,
I apologize, as I accidently requested NCWRC comments for this one even though it is outside of a trout
watershed. Regardless, I appreciate your review of the project and I'm hoping I can clarify the issues you noted.
The proposed 50' culvert you referenced is a bottomless culvert/3 sided structure. It is being built on top of where the
old bridge used to be. The old bridge is a single lane, so we are widening the new bridge so it can accommodate two
way traffic. The footers of the old/existing bridge are already impacting 18' of the stream, so I didn't count that part as a
new impact. The 32' of new impact is related to the increased width of the structure, and associated impacts from
extending the footers upstream (approx. 21') and downstream (approx. 11'). Hope that make sense, but let me know if
not and we can discuss more.
I definitely understand the concern with leaving the UT perched. Our fear with lowering the pipe outlet was that the
pipe would backup during rain events/high flow events, possibly causing a maintenance issue, and flooding the driveway
and yard that the UT goes through — basically, we were afraid that whenever the water levels in Fish Dam Creek rose, it
would flood the lower portion of the UT. Also, the UT in question is very small and appears to be fishless. I realize there
are other organisms that require passage, but my hopes are that amphibians and aquatic insects will be able to climb
their way into the UT from Fish Dam Creek. I've attached a couple pictures showing the UT and existing pipe outlet
(sorry the latter is blurry).
I'm still finding my way with regard to explaining our impacts on the cover letter and in the PCN, so I'm sure there are
things I can do in the future to be more clear on our plans. Definitely let me know if you need more information, and
hopefully I'll see you in early Feb at the NCAFS meeting!
Thanks,
Kevin
Kevin Hining
Division 11 Environmental Officer
North Carolina Department of Transportation
336 903 9129 office
828-386-7202 cell
k lhininqgLncdol.gov
801 Statesville Rd.
PO Box 250
North Wilkesboro, NC 28659

Ernadd corresl,)ondence to and frorn this address is cubiecd to the
d orlh Carolina Public Records Law and mnay be disclosed to third d)amfdac.
From: Chambers, Marla J <[e-mail]>
Sent: Friday, January 24, 2020 3:08 PM
To: [e-mail]1; Wanucha, Dave <[e-mail]>
Cc: Hining, Kevin J <[e-mail]>
Subject: FW: Request for Comments for Replace bridge #75 on SR 1313 with bottomless three sided culvert
We do not object to this Wilkes Co. project. We are not sure that the impact numbers are correct, as we don't
understand a 50-foot long culvert only impacting 32 linear feet of stream. We are also concerned about
keeping the UT perched. It seems to us that the UT would remain free flowing if the perch were corrected,
remaining connected to the receiving stream at all levels of flow, rather than being a blockage to upstream
movement except during high flows.
Marla
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From: I_srf ich@ncdnr:gv_ <1_se_rf:ich(ncdnr:_v>
Sent: Wednesday, December 18, 2019 11:07 AM
To: Chambers, Marla J <rnarl .:_ch2m rs(r _n_c i.l_dlif:e_:grg>
Subject: Request for Comments for Replace bridge #75 on SR 1313 with bottomless three sided culvert

The North Carolina Division of Water Resources (DWR) has just received a new application that may be related to your
agency's work.
The application can be found here: hops. /edocs.deq.nc.g v/ aterlF�_eSOLArces/Bro se:_aspx?d id.-O starti_d:-1052507
If you wish to offer DWR feedback on this application, please upload your comments at
hits:/Cedocs.deq.nc.ovJlForms/Supplemental-Ilnformation-IForm).
Project Name: Replace bridge #75 on SR 1313 with bottomless three sided culvert
ID #: 20191723 Version: 1
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