ST9902-CS071102
(3/9/2010) Keith Marvin - Re: West Sandy Lake Road BridgePage 1
From: Keith Marvin
To:Atkins, Matt
CC:Black, Delvin; Holliday, Mark
Date: 11/2/2007 8:26 AM
Subject: Re: West Sandy Lake Road Bridge
Ok, we'll use the TXDOT standard rail you sent.
We look forward to reviewing your amendment. Let me know if you need anything else.
Thanks!
Keith
Keith Marvin, P.E.
Project Engineer
(972) 304-3681
>>> "Matt Atkins" <matkins@tnp-online.com> 11/1/2007 1:53 PM >>>
Keith,
We have finally tracked down an answer to the types of bridge railings
that TxDOT will allow on the bridge of Cottonwood Creek. Essentially,
the rails that Coppell has used on other bridges will not be allowed
adjacent to any traffic on a bridge with TxDOT review since they have
not been crash tested. TxDOT does have a rail that is similar in nature
to the ones that have been used in Coppell, and I have attached the
details (C411-Texas Classic). The proposed bridge has a total of three
railings on it, two of which are adjacent to traffic and would need to
be TxDOT standards. The rail on the outside of the trail could be any
type that you wanted, however, our structural engineer does not
recommend mixing the types of rails on the same bridge due to the
possibility of confusion during construction and economics. Please let
me know your thoughts regarding this issue.
We are working toward a listing of the things that will change in our
contract and preparing an amendment for you. If you have any questions,
please feel free to contact either me or Mark. Thanks and have a great
day!
Matt Atkins, P.E.
Project Manager
12160 North Abrams Road, Suite 508
Dallas, Texas 75243
214.461.9867 office
(3/9/2010) Keith Marvin - Re: West Sandy Lake Road BridgePage 2
214.461.9864 fax
matkins@tnp-online.com <mailto:matkins@tnp-online.com>
www.tnp-online.com <http://www.tnp-online.com/>