| Ohhara Dam | |
| Location: | Shiga Prefecture, Japan |
| Dam Length: | 191.7m |
| Dam Height: | 27.4m |
| Opening: | 1962 |
| Res Capacity Total: | 2120 thousand cubic meters |
| Res Catchment: | 6.1 sq. km |
| Res Surface: | 19 hectares |
| Coordinates: | 34.9022°N 136.2817°W |
| Location Map: | Japan |
Ohhara Dam is an earthfill dam located in Shiga prefecture in Japan. The dam is used for irrigation. The catchment area of the dam is 6.1 km2. The dam impounds about 19 ha of land when full and can store 2120 thousand cubic meters of water. The construction of the dam was completed in 1962.[1]