Signing strategies for low-water and flood-prone highway crossings Page: I
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Technical Report Documentation Page
1. Report No. 2. Government Accession No. 3. Recipient's Catalog No.
FHWA/TX-12/0-6262-1
4. Title and Subtitle 5. Report Date
SIGNING STRATEGIES FOR LOW-WATER AND FLOOD-PRONE February 2011
HIGHWAY CROSSINGS Published: November 2011
6. Performing Organization Code
7. Author(s) 8. Performing Organization Report No.
Kevin Balke, Laura Higgins, Sue Chrysler, Geza Pesti, Nadeem Report 0-6262-1
Chaudhary, and Robert Brydia
9. Performing Organization Name and Address 10. Work Unit No. (TRAIS)
Texas Transportation Institute
The Texas A&M University System 11. Contract or Grant No.
College Station, Texas 77843-3135 Project No. 0-6262
12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered
Texas Department of Transportation Technical Report:
Research and Technology Implementation Office September 2008-August 2010
P. O. Box 5080
Austin, Texas 78763-5080 14. Sponsoring Agency Code
15. Supplementary Notes
Research performed in cooperation with the Texas Department of Transportation and the U.S. Department
of Transportation, Federal Highway Administration.
Research Project Title: Signing Guidelines for Flooding Conditions and Warrants for Flood-Condition
Detection Systems
URL: http://tti.tamu.edu/documents/0-6262-1 .pdf
16. Abstract
In Texas, approximately eight flood-related fatalities occur each year-the majority of these (78.6 percent)
involve motorists that are trapped in their vehicles or washed away. In many cases, victims, not wanting to
take a lengthy detour, ignored barricades and tried to drive across a flooded street or low-water crossing-
literally driving themselves into harm's way. It takes as little as 2 ft of water to float most cars. Several
districts in Texas have developed different signing strategies for warning motorists of low-water crossings.
As part of this research, the Texas Transportation Institute (TTI) developed guidelines and
recommendations for creating signing uniformity for low-water and flood-prone sections of roadways.
Signing guidelines were created for the following situations: 1) roadway sections that have several low-
water crossings where water flows over the roadway in wet conditions, 2) actual low-water crossings, and 3)
temporary road closures due to high water. TTI also developed criteria for when to implement active water-
level detection and advance warning systems at low-water crossings and flood-prone roadway sections.
17. Key Words 18. Distribution Statement
Ramp Meter, Ramp Control Signal, Warrants, No restrictions. This document is available to the
Operational Guidelines public through NTIS:
National Technical Information Service
Alexandria, Virginia 22312
http://www.ntis.gov
19. Security Classif.(ofthis report) 20. Security Classif.(ofthis page) 21. No. of Pages 22. Price
Unclassified Unclassified 216Form DOT F 1700.7 (8-72)
Reproduction of completed page authorized
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Higgins, Laura; Chrysler, Susan T.; Pesti, Geza & Chaudhary, Nadeem. Signing strategies for low-water and flood-prone highway crossings, report, November 2011; College Station, Texas. (https://texashistory.unt.edu/ark:/67531/metapth326757/m1/3/?q=%222008~%22: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.