ST9902-CS060906Keith Marvin - Retainin Wall Submittal Page 1
From: "Matt Atkins" <matkins @tnp- online.com>
To: "Keith Marvin" <kmarvin @ci.coppell.tx.us>
Date: 9/6/2006 2:02:08 PM
Subject: Retaining Wall Submittal
Keith,
Attached is a memo that I sent to you and Larry via fax regarding the
retaining wall submittal. I also copied Lance Smith and John Gay, and I
have already talked to John on the phone. Please let me know if you
have any questions. Thanks.
Matt Atkins, P. E.
Teague Nall and Perkins, Inc
12160 North Abrams Road, Ste. 508
Dallas, Texas 75243
Ph: 214 -461 -9867
Fax: 214- 461 -9864
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Memorandum
To: Keith Marvin, P.E.
From: Matt Atkins, P E.
cc: Larry Davis, John Gay, Lance Smith
Date: September 6, 2006
Re: Retaining Wall Submittal
I have review the retaining wall submittal from Tiseo Paving Company and i have the following
comments.
1 The type of block appears to be in general conformance to the plans and specifications.
2. The max wall height is 3 feet instead of 2 feet as indicated by the handwritten text on the
second page of the submittal.
3. The notes for the max wall height without reinforcement indicate that they assume a level
backfill. With our wall section, the backfill will be placed on a slope up to the existing
screening wall This does not meet the assumptions for the product and the wall design
should be checked for global stability as well as local stability
4 The information submitted indicates the use of a granular base leveling pad. Per the
specifications, this project requires the use of a concrete footing.
5 Finally, I do not see any information on the attachment of the capstone to the walls.
Throughout the design process and product selection, it was determined that the capstone
needed to be fixed to the wall so that it could not be easily removed.
Please let me know if you have any questions or comments regarding the above information.
12160 North Abrams Road, Suite 508 Dallas, Texas 75243 214 461.9867 phone 214 461.9864 fax
www tnp- online corn