Chapter 1: General Policies on Use of Bridge Railing

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Section 1: About This Manual

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Purpose

This manual documents policy on the use of bridge railing in Texas and provides guidance on selection of railing. The manual is intended for use by Texas Department of Transportation (TxDOT) District and Division personnel and consultants employed by TxDOT.

Updates to the manual are summarized in the following table.

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Version

Publication Date

Summary of Changes

2001-1

December 2001

New manual.

2002-1

February 2002

Revision adding information on acceptability of T6 railing types for use limited to low speed applications.

2003-1

August 2003

Revision adding information about acceptability of in-place railing that complies with NCHRP-230 requirements, adding information about railing on culverts, adding information about railing on bridges scheduled for maintenance overlays, adding information about the T502 and C502 railing types, adding profile sketches and information about minimum heights after maintenance overlays for specific railing types, and clarifying bridge slope requirements.

2005-1

June 2005

Revision removing references to C101 metal railing, adding references to the Rail Anchorage Curb Retrofit standard drawing, and adding descriptions of the following new railings: T401, T402, C402, and T77 metal and concrete railing, and T221, C221, and B221 concrete railing.

2006-1

May 2006

Revision updating state policy on railing for bridge-class culverts, identifying railings that are acceptable but no longer used for new construction, adding an index, and making minor editorial corrections.

2012-1

April 2012

Represents a rewrite of a majority of the previous version. As a result, it is not practical to highlight the changes. Generally, revisions to incorporate provisions of the AASHTO Manual for Assessing Safety Hardware; include an expanded list of acceptable rail types; and clarify treatment of existing bridge railing based on type of project. Please consult this version in its entirety as the prevailing TxDOT bridge railing policy.

2013-1

May 2013

Revision updating FHWA policy on railing, updating state policy regarding rail on retaining wall, adding new rail type T131RC, updating state policy on existing rail, identifying railings that are acceptable but no longer used for new construction, and updating combination rails acceptable for high speed use.



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Organization

The information in this manual is organized as follows:

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Feedback

Direct any questions or comments on the content of the manual to the Director of the Bridge Division, Texas Department of Transportation.


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