Submerged-flow bridge scour under maximum clear-water conditions (II): Theory

J. Guo, K. Kerenyi, J. E. Pagan-Ortiz, K. Flora, B. Afzal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


A theoretical model for the maximum scour depth under submerged bridge flow was proposed based on the mass and energy conservation laws as well as the recent flume experimental data. It is shown that the maximum scour depth can be described by a scour number and an inundation index. In general, for submerged flow the scour number increases with the inundation index, which is equivalent to the maximum scour depth increases with deck inundation level, decreases with increasing sediment size, and is independent of bridge girders. The proposed method is expected to be applicable to prototype flows without scaling effects since it was derived from the conservation laws. An application procedure was also suggested for bridge foundation design or field scour evaluation.

Original languageEnglish (US)
Title of host publicationScour and Erosion
Number of pages9
Edition210 GSP
StatePublished - 2010
Externally publishedYes
Event5th International Conference on Scour and Erosion - San Francisco, CA, United States
Duration: Nov 7 2010Nov 10 2010

Publication series

NameGeotechnical Special Publication
Number210 GSP
ISSN (Print)0895-0563


Other5th International Conference on Scour and Erosion
Country/TerritoryUnited States
CitySan Francisco, CA

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology


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