20140090 Ver 3_WRC Comments Site 8_20170227

Wanucha, Dave
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Chambers, Marla J
Monday, February 27, 2017 5:32 PM
Wanucha, Dave; Euliss, Amy
Guy, Jeremy M
WRC Comments Site 8
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I was looking back at the photos I took during the field visit last June. The first attached photo I believe is the same view that
Amy sent a recent photo of. I'm glad to see the rock installed at the outlet and it will be good/educational to see the progression
over time as we continue to monitor it. I still wonder if narrowing the width of the outlet flow will be beneficial by increasing the
depth and helping to form a better channel downstream, but I'm willing to let more time pass and storms occur before deciding.
The second and third attached photos I believe are of the inlet and upstream of the culvert with the cross vein done to correct
the down-cutting issue. Just curious about its progress. Does the channel appear to be building back up? Again it'll be good to
see how it does over time. I do want to see the progress in person at some point, but I'm not in any rush. Thanks for the
updates!
Marla
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From: Wanucha, Dave
Sent: Monday, February 27, 2017 8:30 AM
To: Euliss, Amy <[e-mail]>; Chambers, Marla J<[e-mail]>
Cc: Guy, Jeremy M <[e-mail]>
Subject: RE: U-2579B Winston Loop Culvert Site 8 Update
Thanks Amy and Jeremy for the extra effort on the bench. Any conclusions to share regarding the culvert survey?
Dave W
Dave Wanucha
Division of Water Resources
Transportation Permitting Unit
NC Department of Environmental Quality
336-776-9703 office
336-403-5655 mobile

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NC DEQ Winston Salem Regional Office
450 West Hanes Mill Road, Suite 300
Winston Salem, NC 27105
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From: Euliss, Amy
Sent: Friday, February 24, 2017 10:39 AM
To: Wanucha, Dave <dave_:wa_n_u�ha_(c�_n_cd_e_n_r.:.�crv>; Chambers, Marla J<rn�a_rla.:_charn�_�ers_(c�_n_�wi.l_dl_i�e_:cr
Cc: Guy, Jeremy M <jrn��u�v(a�ncdcrt.�crv>
Subject: RE: U-2579B Winston Loop Culvert Site 8 Update
From: Wanucha, Dave
Sent: Friday, February 24, 2017 10:37 AM
To: Chambers, Marla J; Euliss, Amy
Subject: U-2579B Winston Loop Culvert Site 8 Update
Hi Marla and Amy,
Marla,
See attached email chain for history of this site. We last visited in June of last year. I visited the site yesterday with DOT and the
Corps to observe inlet and outlet conditions.
In regards to the inlet, Amy explained that DOT has decided to wait until the project is further along until EC measures adjacent
to the inlet are removed. At which point, they will construct a wider floodplain at the inlet. As I understand it, the intent is to
allow natural sediment transport processes to backfill the scour hole over time. Is that correct Amy?
The modified floodplain bench at the outlet has not been constructed up to this point. As you recall, we agreed that DOT would
place Class B sized rock approximately halfway across the existing sill tying it into the existing floodplain bench in an effort to
divert/narrow lowflow channel. The intent was to eliminate the waterfall effect at the outlet (4"- 6") to improve aquatic
passage. DOT assures me they will construct the floodplain bench over the next two months or so. Although, after reviewing
the outlet again, it may not be necessary. A comment was made that the Class B rock would likely wash out with subsequent
storms events. And, Amy suggested that the sill is functioning similar to a constructed cross vane. I can see her point in this
case. Let us know if you would like DOT to proceed with the floodplain extension or not and if you would like to revisit the
site. Thanks.
Amy,
In the attached email from Steve Morgan, it was suggested that DOT would re-survey the stream profile up and downstream
from the culvert for before/after comparisons. I believe this was to determine if the culvert was constructed at the correct
elevation? Is DOT still planning to do that?
Dave W

Dave Wanucha
Division of Water Resources
Transportation Permitting Unit
NC Department of Environmental Quality
336-776-9703 office
336-403-5655 mobile
��u�_.�OV�ii�_u�lh�_�u��d�u�ir.ar�u
NC DEQ Winston Salem Regional Office
450 West Hanes Mill Road, Suite 300
Winston Salem, NC 27105
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