Uryu Dam
Uryu Dam is a pair of dams on the Uryu River in Kamikawa Subprefecture, Hokkaido, Japan. The two gravity-type concrete dams, Uryu No.1 and Uryu No.2, were built as a power generation project and are managed by Hokkaido Electric Power Co., Inc. Construction began in 1939 and was completed in 1943.
Uryu No.1 (Re) is used for flood control and power production. It has a catchment area of 368.5 square kilometers, and when full it covers about 2,373 hectares of land, storing around 225 million cubic meters of water.
Uryu No.2 (Moto) is used for power production. It has a smaller catchment area of 109.7 square kilometers and a smaller reservoir.
The dam complex created Lake Shumarinai, a large artificial lake.
This page was last edited on 2 February 2026, at 13:33 (CET).