Abstract
An empirical procedure is developed for quickly predicting peak outflows from breached embankment dams on the basis of readily available information. Regression analysis of data from 22 failed embankment dams including the measured peak outflow, reservoir characteristics, and embankment characteristics provides a prediction equation that fits the data well over the entire range of values. Upper and lower prediction limits of the peak outflow can be computed and used to establish a factor of safety for flood-hazard assessment. The predicted peak outflows can be used with approximate flood routing methods to provide a preliminary analysis of dam-break flooding prior to a more detailed investigation.
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