| Midorikawa Hojo Dam | |
| Name Official: | 緑川補助ダム |
| Location: | Kumamoto Prefecture, Japan |
| Dam Length: | 244m |
| Dam Height: | 35m |
| Construction Began: | 1964 |
| Opening: | 1970 |
| Res Capacity Total: | 46000 thousand cubic meters |
| Res Catchment: | 359 sq. km |
| Res Surface: | 181 hectares |
| Coordinates: | 32.6297°N 130.9064°W |
| Location Map: | Japan |
Midorikawa Hojo Dam is a rockfill dam located in Kumamoto Prefecture in Japan. The dam is used for flood control, irrigation and power production. The catchment area of the dam is 359 km2. The dam impounds about 181 ha of land when full and can store 46000 thousand cubic meters of water. The construction of the dam was started on 1964 and completed in 1970.[1]