| Ikkatai Dam | |
| Name Official: | 一方井ダム |
| Location: | Iwate Prefecture, Japan |
| Dam Length: | 390m |
| Dam Height: | 40m |
| Construction Began: | 1972 |
| Opening: | 1990 |
| Res Capacity Total: | 2240 thousand cubic meters |
| Res Catchment: | 5.6 sq. km |
| Res Surface: | 28 hectares |
| Coordinates: | 40.0142°N 141.1331°W |
| Location Map: | Japan |
Ikkatai Dam is a rockfill dam located in Iwate Prefecture in Japan. The dam is used for irrigation. The catchment area of the dam is 5.6 km2. The dam impounds about 28 ha of land when full and can store 2240 thousand cubic meters of water. The construction of the dam was started on 1972 and completed in 1990.[1]