| Iwamura Dam | |
| Location: | Hokkaido Prefecture, Japan |
| Dam Length: | 146.5m |
| Dam Height: | 17m |
| Construction Began: | 1968 |
| Opening: | 1973 |
| Res Capacity Total: | 224 thousand cubic meters |
| Res Catchment: | 1.2 sq. km |
| Res Surface: | 7 hectares |
| Coordinates: | 43.7858°N 141.8378°W |
| Location Map: | Japan |
Iwamura Dam is an earthfill dam located in Hokkaido Prefecture in Japan. The dam is used for irrigation. The catchment area of the dam is 1.2 km2. The dam impounds about 7 ha of land when full and can store 224 thousand cubic meters of water. The construction of the dam was started on 1968 and completed in 1973.[1]