Volume 65 (2009) Issue 1 Pages 936-940
The height of seawalls is designed based on allowable wave overtopping rate or wave runup height in design of surge and wave prevention facilities. Although a design method based on wave overtopping rate takes into account of wave randomness, a design method based on wave runup height does not consider the wave randomness but uses equations and figures from regular waves' theories and experiments. There is an urgent need for establishing estimation schemes of random wave runup height and incorporating the schemes into a seawall design. This study proposes equations for predicting random wave runup heights for seawalls with composite cross section installed near shoreline, aiming at elaborating a seawall design scheme.