00473165

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http://onlinepubs.trb.org...1987/1106v2/1106v2-039.pdf

https://scholar.google.co...dale&publication_year=1987

The use of precast concrete median (Jersey) barriers as ford walls on low-volume roads is described. Ford walls are used on U.S. Forest Service roads to stabilize low water stream crossings. This is an acceptable practice on roads that have been temporarily closed for 1 or 2 hours as a result of flooding from sudden and intense storm runoff. The barriers are readily available, precast units that can be transported to the site and installed with conventional equipment that is used to maintain low-volume roads. Modified barriers with steel caps have also been used successfully to prevent erosion of the top of the concrete wall as a result of abrasive bedload movement during high water flows. Ford walls that were constructed with concrete median barriers have been used on hundreds of low water crossings in the desert and mountainous regions of the southwestern United States. These barriers have proved to be an efficient, low-cost alternative to conventional, cast-in-place concrete walls.

This paper appeared in Transportation Research Record N1106, Fourth International Conference on Low-Volume Roads, Volume 2. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

00490258

pp 327-329

1987-8

Transportation Research Record

International Conference on Low Volume Roads, 4th, 1987, Ithaca, New York, USA

0309044545

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Figures (2)

Causeways; Floods; Median barriers; Runoff

Bridges and other structures; Design; Highways; Hydraulics and Hydrology; I24: Design of Bridges and Retaining Walls

TRIS, TRB

Sep 30 1987 12:00AM