平成30年7月豪雨による北海道北部・東部における河川構造物の被災調査

抄録

In Hokkaido, heavy rain in July 2018 was the largest flood since the heavy rain in Hokkaido in 2016. In small and medium-sized rivers in northern Hokkaido, damages such as breakage of levees and spillage of abutment back embankment occurred. In the eastern part of Hokkaido, a bridge spanning a first class river caused a subsidence of the bridge pier foundation.

This paper presents basic data that will contribute to future disaster prevention measures regarding the results of the survey of the damage status of river structures that occurred in the Hokkaido and Eastern regions due to torrential rains in July 2018.