| Shimoyu Dam | |
| Location: | Aomori Prefecture, Japan |
| Dam Length: | 783.5m |
| Dam Height: | 70m |
| Construction Began: | 1971 |
| Opening: | 1988 |
| Res Capacity Total: | 12600 thousand cubic meters |
| Res Catchment: | 63.7 sq. km |
| Res Surface: | 63 hectares |
| Coordinates: | 40.6917°N 140.7789°W |
| Location Map: | Japan |
Shimoyu Dam is a rockfill dam located in Aomori Prefecture in Japan. The dam is used for flood control and water supply. The catchment area of the dam is 63.7 km2. The dam impounds about 63 ha of land when full and can store 12600 thousand cubic meters of water. The construction of the dam was started on 1971 and completed in 1988.[1]