| name | image | status | type | Area (m²) | date Commissioned | date Opened | date Start construction | Website | Height (m) | Country | continent | Maximum discharge (m³/day) | lake | Installed capacity (w) | latitude (°) | Length (m) | longitude (°) | Turbines | volume (m³) | administrative división | city | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ōmachi Dam |  | Operational | Gravity | 04/1985 | 1985 | 1972 | website | 107 | Japan | Asia | 36.5000000000 | 338 | 137.7666625977 | 1 | 766,000 | Nagano Prefecture | Ōmachi, Nagano | Map |