20190506 Ver 1_More Info Received_20190507

Carpenter,Kristi
From:
Patterson, Robert D
Sent:
Tuesday, May 07, 2019 7:46 AM
To:
Lee, Craig J; Thomson, Nicole J; Norton, April R; Mills,
James M
Cc:
Parker, Jerry A; Della Moore; David.E.Bailey2
@usace.army.mil; Carpenter,Kristi; Eason, Patty P;
Anderson, Brook E
Subject:
RE: Request for Additional Inforamtion_B-5349_WBS
46063.1.1 _N C D W R20190506
Follow Up Flag: Follow up
Flag Status: Flagged
Craig - The contours were not very legible on the wetland pdfs.
The reason for asking for them is based on the buffer use table; and the dimensions of
the ditches existing vs. proposed. It affects whether it is considered allowable, or
allowable with mitigation. It would be helpful if there was a written description of the
existing vs. proposed ditches.
Thanks
Robert D. Patterson, P.E.
Stormwater Engineer
919-707-3880 1 Robert. [e-mail]
httos://dea.nc.izov/about/divisions/water-resources/water-aual itv-oermitti ne/transportation-oermitti ne
NC Dept. of Environmental Quality I DWR 1401 & Buffer Transportation Permitting Branch
512 N. Salisbury St., 12t^ floor 11617 Mail Service Center I Raleigh, NC 27699-1617
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed
to third parties.
From: Lee, Craig J
Sent: Wednesday, May 1, 2019 9:35 AM
To: Thomson, Nicole J <[e-mail]>; Norton, April R
<[e-mail]>; Mills, James M <[e-mail]>
Cc: Parker, Jerry A <[e-mail]>; Della Moore <[e-mail]>;
David. [e-mail]1; Patterson, Robert D <[e-mail]>;
Carpenter,Kristi <[e-mail]>; Eason, Patty P
<[e-mail]>; Anderson, Brook E <[e-mail]>
Subject: RE: Request for Additional Inforamtion_B-5349_WBS
46063.1.1_NCDW R20190506
April,
The NCDOT Hydraulic Guidelines currently state to only provide without contour plan
sheets for buffer drawings. It has sometimes been missed in the review process and we
have been asked to remove them. We can discuss more if this is now needed by the
permit agencies for review so our guidelines can potentially be modified. The contours

are supplied on the wetland drawing plan sheets. Typically we do not show existing
roadway ditch dimensions. They are shown in the roadway cross sections. The existing
roadway ditches are V-Ditches with variable front and back slopes ranging from 2:1-4:1.
1 do not mind providing additional information that is needed if this explanation is not
sufficient.
Thanks,
Craig J. Lee, PE
Engineer III - Western Design Support - Divisons 7, 9-14
North Carolina Department of Transportation
Hydraulics Unit
919 707 6708 office
cilee .ncdot.gov
US Mail:
1590 Mail Service Center
Raleigh, NC 27699-1590
Physical Address:
1000 Birch Ridge Dr.
Raleigh, NC 27610
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Thomson, Nicole J <[e-mail]>
Sent: Monday, April 29, 2019 12:40 PM
To: Norton, April R <[e-mail]>; Lee, Craig J <[e-mail]>; Mills,
James M <[e-mail]>
Cc: Parker, Jerry A <[e-mail]>; Della Moore <[e-mail]>;
David. [e-mail]; Patterson, Robert D <[e-mail]>;
Carpenter,Kristi <[e-mail]>
Subject: RE: Request for Additional Inforamtion_B-5349_WBS
46063.1.1_NCDW R20190506
Good morning April —
I will leave the first bullet item for Craig Lee (hydraulic design) to address.
I will address the second below in red
Let me know if you need anything else from me.

Thanks!
Nik
Nicole J. Thomson, PWS
Division Environmental Supervisor Assistant
Division Environmental Office
919-754-7806 Mobile
Nithomson2a-ncdot.gov
PO Box 14996
Greensboro, NC 27415-4996
6
xt
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Norton, April R <[e-mail]>
Sent: Monday, April 29, 2019 10:03 AM
To: Lee, Craig J <[e-mail]>; Mills, James M <[e-mail]>
Cc: Parker, Jerry A <[e-mail]>; Della Moore <[e-mail]>; Thomson,
Nicole J <[e-mail]>; David. [e-mail]; Patterson, Robert
D <[e-mail]>; Carpenter,Kristi <[e-mail]>
Subject: Request for Additional Inforamtion_B-5349_WBS 46063.1.1_NCDWR20190506
NCDWR has reviewed your application dated and received April 18, 2019. For NCDWR to
continue the review process, please provide the below additional information within 30-
days. Your application is currently placed on hold until the additional information has
been received.
• Please show existing contours on Buffer Sheet 5; and provide the existing ditch
dimensions [15A NCAC 02B .0267].
• Please provide additional information regarding avoidance and minimization of
buffer impacts identified as Site No. 2 on the Riparian Buffer Impacts Summary
sheet [(15 NCAC 02H .0506(f) and (g)]. This should include alternative designs
and layouts (reducing and/or reconfiguring impacts to minimize disturbance to
the proposed impacts at Site 2), or provide a detailed explanation of why the
proposed impacts are the best available alternative. In our application we
provided the attached documents which discuss the need for the onsite
detour. From the Community Impact Assessment (CIA), it was noted that the
detour was 11.2 miles long which is not feasible, especially when EMS and Fire
are considered (with respect to response times). The proposed location for the
onsite detour (north of the existing bridge) avoids the adjacent tributary which
flows from West to East just outside the ROW of the existing road. If this onsite
detour was shifted to the south side of the bridge, it would severely impact the
other tributary that flows from East to West (in short, the other tributary would
be mostly under fil). It was decided that from an impact avoidance
3

determination, clipping the buffer of a stream was preferable to taking out an
entire system.
Please let me know if you have any questions.
April R. Norton
Transportation Permitting Branch
NC Department of Environmental Quality
Division of Water Resources
919-707-9111 office
919-710-6516 mobile
[e-mail]
512 North Salisbury Street, 12t" Floor (physical)
1617 Mail Service Center (mailing)
Raleigh, NC 27699-1617
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third
parties.