| Jōzankei Dam | |
|---|---|
| Location | Hokkaidō, Japan. |
| Construction began | 1974 |
| Opening date | 1989 |
| Dam and spillways | |
| Height | 118 m |
| Length | 410 m |
| Impounds | Otarunai River |
| Reservoir | |
| Capacity | 82,300,000 m³ |
| Catchment area | 104 km² |
| Surface area | 230 hectares |
Jōzankei Dam (定山渓ダム Jōzan-kei Damu) is a dam in Hokkaidō, Japan. It supports a 120 MW hydroelectric power station.[1]
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