20130918 Ver 1_Culvert Construction_20180821

Carpenter,Kristi
From: Wilson, Travis W.
Sent: Tuesday, August 21, 2018 8:16 AM
To: [e-mail]; Gary Jordan (gary�[e-mail])
Cc: Parker, Jerry A; Norton, Apri) R
Subject: RE: [External] FW: Culvert Construction
We have not gotten away from using sills at the inlet and outlet of culverts. If my memory is correct what you are seeing on this
one are intermediate sills (or baffles) the engineer proposed in the 4b meeting to help retain bedload throughout to culvert due
to it's length. It should not be shown to be backfilled unless in is a dry floodplain culvert and likewise if it was a dry floodplain
culvert it should not have baffles just an inlet and outlet sill then backfilled.
-----Original Message-----
From: Bailey, David E CIV USARMY CESAW (US) <[e-mail]>
Sent: Monday, August 20, 2018 7:53 AM
To: Wilson, Travis W. <[e-mail]>; Gary Jordan ([e-mail]) <[e-mail]>
Cc: Parker, Jerry A<[e-mail]>; Norton, April R<[e-mail]>
Subject: [External] FW: Culvert Construction
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Good morning Travis and Gary. I hope you have both had a good weekend.
A question came up from Div. 7 regarding a culvert about to be installed for U-2525C, part of the Greensboro Urban Loop
project. The attached details show the culvert with baffles extending the full width of the culvert, and then backfilled in between
with native material. Keep in mind that this project was permitted several years ago.
In more recent years, our experience has been that baffles are more typically designed as alternating structures that extend �1/2
way across the width of the culvert, with no backfilling proposed.
Before I respond with the Corps' opinion, I wanted to get your thoughts about the design attached, or if you would prefer/accept
a design more like the paragraph above. 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.
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at: http://corpsmapu.usace.army.mil/cm_apex/f?p=136:4:0
Thank you for taking the time to visit this site and complete the survey.
-----Original Message-----
From: Parker, Jerry A [mailto:[e-mail]]
Sent: Friday, August 17, 2018 3:56 PM
To: Bailey, David E CIV USARMY CESAW (US) <[e-mail]>; Norton, April R<[e-mail]>
Subject: [Non-DoD Source] Culvert Construction
Dave and April,
I have attached a culvert construction detail that is being used for U-2525C. Is this how we want the culverts constructed? With
baffles that extend the entire width of the culvert and then backfilled with native material? I thought we had gone away from
this type construction?
Jerry Parker
Environmental Supervisor
Division 7
North Carolina Department of Transportation

336 256 2063 office
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