Risk models for flood levee design

Yeou-Koung Tung*, Larry W. Mays

*Corresponding author for this work

Research output: Contribution to journalArticle

79 Scopus citations

Abstract

In the design of flood levee systems there are many parameters and variables with associated uncertainties. This paper presents models which systematically analyze the various types of uncertainties in the hydrologic aspect as well as hydraulic aspect of design and analysis to define the risk and reliability of overtopping. Both static and time dependent risk models are developed. Results show that risk evaluated by the simple return period method can be underestimated by 10% to 50%, depending on the loading distribution model used. The risk‐safety factor relationships are shown to be very sensitive to the hydrologic loading probability model adopted, so that composite models are suggested for risk analysis.

Original languageEnglish
Pages (from-to)833-841
Number of pages9
JournalWater Resources Research
Volume17
Issue number4
DOIs
StatePublished - 1 Jan 1981

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