| Ochiai Dam | |
| Location: | Yamagata Prefecture, Japan |
| Dam Length: | 63m |
| Dam Height: | 15.5m |
| Opening: | 1958 |
| Res Capacity Total: | 656 thousand cubic meters |
| Res Catchment: | 371.5 sq. km |
| Res Surface: | 9 hectares |
| Coordinates: | 38.5544°N 139.8106°W |
| Location Map: | Japan |
Ochiai Dam is a gravity dam located in Yamagata Prefecture in Japan. The dam is used for power production. The catchment area of the dam is 371.5 km2. The dam impounds about 9 ha of land when full and can store 656 thousand cubic meters of water. The construction of the dam was completed in 1958.[1]