It is a relatively new multipurpose dam in Hokkaido completed in FY 2014. The concrete gravity dam has a free-selective air-lock intake system that is very rare in Japan. A sangen (tri-stringed) bridge that is a rare structure in the world is known as a “phantom bridge” as it is usually underwater in Lake Shuparo and becomes visible only in a dry season that comes once every several years. The Oyubari Dam, which supported the region for five decades before construction of the Shuparo Dam, is also underwater of the dam lake (Lake Shuparo).

Dam data
●River name
Yubari River of the Ishikari river system
●Type
Concrete gravity dam
●Height
110.6 m
●Crest length
390.0 m
●Dam functions
Flood control, maintenance of normal water flow function, provision of irrigation and city water, hydropower generation

Map code: 700 387 461*40