2020 Volume 76 Issue 1 Pages 398-403
Typhoon No. 19, which landed in Japan on October 12, 2019, caused record heavy rainfall in the Kanto, Koshin and Tohoku regions. Flood damage such as swept away of abutment and inundation due to levee breach occurred in the Chikuma River of the Shinano River system. The authors conducted a field survey on the 23rd and 24th October 2019 at the damaged area of the river structure in the Chikuma River. The survey methods are visual observation by field reconnaissance and aerial photography by UAV (Unmanned Aerial Vehicle). This paper reports the damage situation of river structures obtained from the field survey and the lessons learned.
PROCEEDINGS OF HYDRAULIC ENGINEERING
