Utilizing a recently developed analytical procedure, the significance of hydrodynamic effects in the earthquake response of embankment dams is evaluated. Effects of dam-fluid interaction, water compressibility and fluid-foundation interaction are all considered in this study. Numerical results for the hydrodynamic forces on rigid dams and the horizontal acceleration response of the dam crest due to harmonic ground motion are presented. Hydrodynamic effects are shown to be relatively unimportant in the response of embankment dams to horizontal ground motion, and the response to vertical ground motion to be small compared to that due to horizontal ground motion.
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