ST9905-CS041210Suzan Taylor - FW: RE: Box Culvert under Bethel Road
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From: <ccbond~transystems.com>
To: <thh~freese.com>
Date: 12/10/2004 10:47 AM
Subject: FW: RE: Box Culvert under Bethel Road
CC: <staylor~ci.coppell.tx.us>
Trish,
As directed by the City, we took the channel design, including the box culverts, out of the last set of plans that
were submitted to the City. There are still COE permit issues that have not been resolved. The City is suppose
to hear back from the COE at the end of the month, then we will put a portion of the channel and the box
culverts back in the plan set. In addition, we will be raising the boxes as much as possible to stay away from the
12" sanitary sewer line. The COE has also requested some modifications to the channel alignment that will
have to be incorporated into the design. At any rate, I don't see having a revised set of channel/box culved
plans until the later part of January, at the earliest. Please see if the elevation information provided below will
help you. Thanks.
Craig
..... Original Message .....
From: Suzan Taylor [mailto:staylor@ci.coppell.tx.us]
Sent: Friday, December 10, 2004 10:20 AM
To-' DL-Charles Bond
Subject: Fwd: RE: Box Culvert under Bethel Road
>>> <ccbond@transystems.com> 11/11/2004 4:45:23 PM >>>
Suzan,
Based on the information I have, the top of the 4 - 5' x 10' box culverts will sit at 508.34 over the 12" PVC
sanitary sewer line. I've summarized my figures below:
· Flow line of 12" PVC sanitary sewer line at approx. 500
· Top of 12" PVC sanitary sewer line at approx 501
· 1' of clearance puts bottom of box culvert at 502
· Top of box culvert then sits at 508.34 (bottom box thickness of 0.67', plus 5' box opening, plus top box
thickness of 0.67')
The 1' of clearance will allow room to encase the line with 6" of concrete and still have 6" clearance below the
box culverts. I believe F&N preferred that the top of the box culvert not exceed 507.68, based on an earlier e-
mail (around May 2004), but could make some changes that would allow the box culverts to be raised 1.30 feet
to 508.98. Please call if you have any questions or comments. Thanks.
Craig
..... Original Message .....
From: Suzan Taylor [mailto:staylor@ci.coppell.tx.us]
Sent: Thursday, November 04, 2004 1:15 PM
To-' DL-Charles Bond
Subject: Box Culvert under Bethel Road
Craig:
Freese and Nichols is anxious to see the culvert design for the box culvert under Bethel Road to make
sure their roadway design is still working okay. Even if we do not construct the gabion channel - the design of
the box culvert under Bethel will need to be finalized so that F&N can proceed. In our meeting with the Corps, I
explained to them that there was an existing sewer line in the roadway that could not be lowered or relocated. I
also told them that we could not lower the interior boxes to allow for the pilot channel flow - and that we were
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limited in what we could build.
Thanks
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