| Sangoro-ike | |
| Name Official: | 三五郎池 |
| Location: | Kagawa Prefecture, Japan |
| Dam Length: | 150m |
| Dam Height: | 18m |
| Construction Began: | 1916 |
| Opening: | 1924 |
| Res Capacity Total: | 85 thousand cubic meters |
| Res Catchment: | 0.9 sq. km |
| Res Surface: | 1 hectares |
| Coordinates: | 34.4958°N 134.3242°W |
| Location Map: | Japan |
Sangoro-ike is an earthfill dam located in Kagawa Prefecture in Japan. The dam is used for irrigation and water supply. The catchment area of the dam is 0.9 km2. The dam impounds about 1 ha of land when full and can store 85 thousand cubic meters of water. The construction of the dam was started on 1916 and completed in 1924.[1]