The dam was constructed in the upper reaches of the Satsunai River, which is a tributary of the Tokachi River, and was completed in 1997. The dam lake was named Tokachi Ryutan (dragon pool) Lake because of the resemblance of its shape to a dragon when seen from above. The Satsunai-gawa Enchi campsite downstream of the dam has the Pyotan no Taki Falls, which is a scenic spot where splashing water falls from a height of 10 m, as well as an obstacle course, tennis, park golf and other leisure facilities.
Satsunai River of the Tokachi river system
Concrete gravity dam
Flood control, maintenance of normal water flow function, provision of city water, hydropower generation
Map code: 592 006 215*34