| Shimajigawa Dam | |
| Location Map: | Japan |
| Coordinates: | 34.1703°N 131.7753°W |
| Country: | Japan |
| Location: | Shūnan, Yamaguchi |
| Status: | O |
| Construction Began: | 1978 |
| Opening: | 1980 |
| Dam Type: | Concrete gravity |
| Dam Height: | 890NaN0 |
| Dam Length: | 2400NaN0 |
| Dam Volume: | 3170000NaN0 |
| Dam Crosses: | Shimaji River |
| Res Name: | Lake Takase |
| Res Capacity Total: | 20600000m2 |
| Res Capacity Active: | 19600000m2 |
| Res Catchment: | 320NaN0 |
| Res Surface: | 800NaN0 |
The Shimajigawa Dam is a concrete gravity dam on the Shimaji River 130NaN0 north of Shūnan in Yamaguchi Prefecture, Japan. The dam was completed in 1980 and was the first dam to be completely constructed with the roller-compacted concrete method. The dam creates Takase Lake.[1]