In recent years, there have been an increasing number of projects that adopt “sloping top caisson breakwater” to reduce construction cost. It is however known that this type of structure tends to increase transmission coefficient of wave. Accordingly, this study was conducted to elucidate transmitted wave characteristic about “sloping top caisson breakwater with upright-wall in the rear” of hydraulic model tests. The basic data obtained is expected to be greatly helpful in future breakwater design.
