WAVE OVERTOPPING DAMAGE AND EROSION DUE TO STORM WAVES ASSOCIATED WITH TYPHOON 1919 ON KOZU AND MAEKAWA COASTS

Abstract

 On the Kozu and Maekawa coasts in Odawara City, facing Sagami Bay, severe wave overtopping damage and erosion occurred due to the storm waves associated with T1919, which hit the coast on October 12, 2019. Since severe wave-overtopping damage also occurred during T0709 which attacked on September 7, 2007, the crown height of the seawall was raised by 1.5 m, resulting in the crown height of 10.5 m above the mean sea level. Nevertheless, severe wave-overtopping occurred. Wave-overtopping damages and erosion of the Kozu and Maekawa coasts by T1919 were investigated with reference to the damages caused by T0709 and T1115.