| Tamiyasu Dam | |
| Location: | Hokkaido Prefecture, Japan |
| Dam Length: | 260.5m |
| Dam Height: | 24m |
| Construction Began: | 1984 |
| Opening: | 2001 |
| Res Capacity Total: | 2000 thousand cubic meters |
| Res Catchment: | 6.2 sq. km |
| Res Surface: | 39 hectares |
| Coordinates: | 44.8317°N 141.8142°W |
| Location Map: | Japan |
Tamiyasu Dam is an earthfill dam located in Hokkaido Prefecture in Japan. The dam is used for irrigation. The catchment area of the dam is 6.2 km2. The dam impounds about 39 ha of land when full and can store 2000 thousand cubic meters of water. The construction of the dam was started on 1984 and completed in 2001.[1]