Hōheikyō Dam

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Hōheikyō Dam
Location Hokkaidō, Japan.
Construction began 1965
Opening date 1972
Dam and spillways
Impounds Toyohira River
Height 102.5 m
Length 305 m
Creates Lake Jōzan
Total capacity 47,100,000 m³
Catchment area 184 km²
Surface area 150 hectares

Hōheikyō Dam (豊平峡ダム?, Hōhei-kyō Damu) is a concrete Arch dam in Sapporo, Hokkaidō; Japan. It dams the Toyohira River.[1] It is situated in Toya National Park. The dam was created for Irrigation as well as Flood control. The road leading to the dam has been closed off for regular car use, instead Hybrid electric busesare operated so the natural environment is protected.[2] The dam's lake is known as Jozan Lake (定山湖),


The construction of the dam began in 1965 and in 1972 the multipurpose dam was completed.[3]


  1. ^ "Hydropower & Dams in South and East Asia" (PDF). Hydropower and Dams. p. 10. Retrieved 3 October 2010. 
  2. ^ "豊平峡ダム【札幌開発建設部】治水100年". www.sp.hkd.mlit.go.jp (in Japanese). Retrieved 2017-03-09. 
  3. ^ "豊平峡について|新緑と紅葉が映し出す湖の豊平峡". houheikyou.jp (in Japanese). Retrieved 2017-03-09. 

Coordinates: 42°54′57″N 141°09′13″E / 42.91583°N 141.15361°E / 42.91583; 141.15361