2020 Volume 19 Issue 3 Pages 324-329
Recent frequent river floods in Japan emphasize the importance of flood disaster mitigation measures concerning urban and architectural planning, and analysis of building damage situations by flood. In this paper, we analyze the trend of damage caused by river floods in the past by using 26 years of the Statistical Survey on Flood Damages. The results show that most of the damages to buildings are caused by inland inundations in large cities, and by river floods in regional cities. About 80% of the flood damages to buildings were caused by inundations below 50cm above the floor level, and therefore, it can be considered that architectural strategies can play an important role for mitigation.
