The Haya river basin is located at the west side of Itoigawa-Shizuoka
Tectonic line, which is the west edge of the Fossa Magna where the Japan Islands is divided into the north east and south west parts.
The geology of this area is very fragile and often causes the sediment related disasters. So far, river flooding under heavy rain, such as typhoons in 1959, washed out our home land and caused large damages over our living.
The Hayakawa Branch Office is making hard efforts to maintain the safety of the lower alluvial fan area by constructing Sabo dams and channel work facilities at the heavily devastated area along Haya river.
1227,Ho,Hayakawa-Cho,Minamikoma-gun,Yamanashi,409-2713,Japan |
