ST9902-CS121108
Halie Hernandez
From:Wisnevski, Michael <Michael.Wisnevski@atmosenergy.com>
Sent:Thursday, November 08, 2012 2:11 PM
To:ALuce@TNPINC.com
Cc:Woolsey, Gary; Keith Marvin; gary.dickinson@tritextech.com
Subject:RE: Sandy Lake Rd. Reconstruction - Coppell, TX
Andrew,
I had previously reviewed this project for Atmos. After re-reviewing the design with Gary Woolsey, we do not see any
issue with separation mentioned below. Please be advised, that our calculations are based off a maximum 16,000 lb load
per axle and if there is any equipment that is heavier Atmos will have to be contacted to re-evaluate this crossing.
Also, the 4.76 ft separation is for the finally grade with the pavement. Please notify Atmos, if the construction grade falls
below 4 ft and/or a wheel load greater than 16,000 lb. Additional steps will have to be taken to insure the safety of the
gas line.
Please let me know if you have any questions.
Thanks,
Michael Wisniewski
TriTexTechnologies, Inc.
100 W. Morningside Dr.
Fort Worth, TX 76110
(817) 207-2843
From: Andrew Luce [mailto:ALuce@TNPINC.com]
Sent: Wednesday, November 07, 2012 1:12 PM
To: Woolsey, Gary
Subject: Sandy Lake Rd. Reconstruction - Coppell, TX
Gary,
Scott Gibson who you spoke with the other day forwarded me your contact information.
I am writing to you in regards to a different project – Sandy Lake Rd. in Coppell. Specifically I want to talk to you about
the separation from our top of pavement to the top of the 24” Atmos gas line crossing Sandy Lake from northwest to
southeast. I have attached our paving plan and profile sheet, cross sections showing our clearance from your line, and
our Level ‘A’ test holes that gave us the elevations of the 24” gas line.
We have kept our profile as high as we possibly can to achieve a 5’ separation from top of pavement to top of pipe.
Where your line intersects with our south curb line, there is a separation of 4.76’. This is the smallest separation. As your
line heads north, it drops in elevation so that the majority of your line under our pavement will be at least 5.00’ below
the top of pavement. By the time the gas line intersects with our north curb line, there is a separation of 7.82’. We are
unable to raise our profile any higher due to the fact we would prevent drainage from adjacent lots to reach the street,
effectively ponding water on private property.
Please let me know if this design will be acceptable with Atmos in regards to our paving profile. If you have any
questions or would like to discuss, please feel free to call or e-mail me.
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Thanks,
Andrew
Andrew Luce, P.E.
Project Manager
1100 Macon Street
Fort Worth, Texas 76102
817.336.5773 Main
817.665.8208 Direct
817.336.2813 Fax
aluce@tnpinc.com
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