Characteristics of wave run-up height on a sandy beach behind dual-submerged breakwaters

► The characteristic of wave run-up height at shoreline with various arrangements of dual-submerged breakwaters were analyzed. ► The wave run-up height at the shoreline behind the submerged breakwater is generally larger than that behind the open inlet. ► The maximum wave run-up height appears behind the center of the submerged breakwater. ► As the detached distance increases, the wave run-up height decreases. ► As the crown width ratio increases, the wave run-up height generally decreases at the shoreline.