Scour Assessment at Bridges

by Paul B. Makowski, Federal Highway Administration, United States,
Philip L. Thompson, Federal Highway Administration, United States,
Connie P. Yew, Federal Highway Administration, United States,



Abstract: Due to the key role that bridges play in the national transportation system, the Federal Highway Administration has developed a scour evaluation program. This program, issued in the form of a Technical Advisory, provides guidance to engineers in the design of new and the evaluation of existing bridges as well as scour countermeasure techniques. The program stresses the use of a multidisciplinary team of hydraulic, geotechnical and structural engineers to provide an organized approach to the evaluation of scour at bridges. In this paper, a summary of the scour evaluation program is presented.

Subject Headings: Scour | Bridge tests | Highway bridges | Bridge design | Soil analysis | Federal government

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