The dam is situated in the upper reaches of the Sanru River, which merges with the Nayoro River, a tributary of the Teshio River. It is a new dam completed in April 2019 in Shimokawa Town. It supports the lives of local people as a multipurpose dam for flood control and hydropower generation. The dam lake’s name Lake Shimokawa Sanru was chosen from submissions from the public.
Sanru River of the Teshio river system
Trapezoidal CSG dam
Flood control, maintenance of normal water flow function, provision of city water, hydropower generation
Map code: 572 886 367*18