2016 Volume 22 Pages 321-326
A significantly severe flood disaster in the Kinugawa basin, Kanto region, Japan was occurred due to a linear precipitation band on Sep. 10, 2015, in which 2 days total rainfall was over 600mm on the upstream basin. Breach and overflow on the river levee happened and they submerged around 40km2 area of the flood plain in the Joso city, Ibaraki Pref. This report is to inform a summary of the flood and damage based on field investigation. As a result of our field survey, house wash-out or serious damage were distributed locally on the band of overtopping flow on the bank failure. Inundation depth reached up to 3.01 m especially in the southern region of the flood. The depth of overtopping flow on the levee crown was estimated to be 20 cm at the levee breach spot.
