RE_ _External_ FW_ 20240534_Bridge 152_Spillcorn Creek_Madison County

Carpenter, Kristi
From: David Petty <[e-mail]>
Sent: Friday, May 10, 2024 4:19 PM
To: Allen, Yates; Conchilla, Ryan
Cc: McHenry, David G; Andrew Cochrane
Subject: RE: [External] FW: 20240534_Bridge 152_Spillcorn Creek -Madison County
Attachments: Madison 152_EC_Pset_Color.pdf
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Afternoon Ryan,
Please see attached erosion control plans for reference.
-Please describe the dewatering activities and the vertical abutment removal process.
Please see attached sheets EC-05 & EC-05A detailing the proposed dewatering activities (Phases 1 through 4).
The existing vertical abutments will be removed down to the streambed elevation during Phase 3 once Impervious Dike
#4 & #5 are in place.
-What replanting efforts are planned for this Project within the temporary detour route post -construction?
A recommendation would be installing coirmatting on the stream banks and live stakes within the replantingzone of
temporary detours.
Plans call for reforestation of disturbed areas (including the temporary detour areas) as shown on attached sheet RF-1
(last sheet).
The erosion control designer is going to add coir fiber matting on streambanks once temporary detour is removed.
Please let us know if you have any further questions or comments. Thanks.
David B. Petty, PE
TGS Engineers
706 Hillsborough Street - Suite 2001 Raleigh, NC 27603I 770-310-1052(M)
dpetty(a-)tgsengineers.com
From: Allen, Yates <[e-mail]>
Sent: Thursday, May 9, 2024 10:09 AM
To: David Petty <[e-mail]>
Cc: Conchilla, Ryan <[e-mail]>; McHenry, David G <[e-mail]>
Subject: [External] FW: 20240534_Bridge 152_Spillcorn Creek -Madison County
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Hey David,
Can you address Ryan's questions below?

Thanks,
Yates Allen
NC DOT
Division 13 Environmental Specialist
55 Orange Street
Asheville, NC 28801
[phone]
From: Conchilla, Ryan <[e-mail]>
Sent: Tuesday, May 7, 2024 11:40 AM
To: Allen, Yates <[e-mail]>
Cc: McHenry, David G <[e-mail]>
Subject: 20240534_Bridge 152_Spillcorn Creek —Madison County
Hi Yates,
I've reviewed the PCN application for this project and have the following comments:
-Please describe the dewatering activities and the vertical abutment removal process.
-What replanting efforts are planned for this Project within the temporary detour route post -construction?
A recommendation would be installing coir matting on the stream banks and live stakes within the replanting zone of
temporary detours.
Ryan Conchilla, PWS
Environmental Specialist II
401 and Buffer Transportation Permitting Branch
North Carolina Department of Environmental Quality
919-707-9111 office
[e-mail]
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NORTH CAROLINA 7d� Q
Department of Environmental Quality
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