| Shinzan No.1 Dam | |
| Location: | Akita Prefecture, Japan |
| Dam Length: | 85m |
| Dam Height: | 17.4m |
| Opening: | 1922 |
| Res Capacity Total: | 70 thousand cubic meters |
| Res Catchment: | 1 sq. km |
| Res Surface: | 1 hectares |
| Coordinates: | 39.9303°N 139.7731°W |
| Location Map: | Japan |
Shinzan No.1 Dam is an earthfill dam located in Akita Prefecture in Japan. The dam is used for irrigation. The catchment area of the dam is 1 km2. The dam impounds about 1 ha of land when full and can store 70 thousand cubic meters of water. The construction of the dam was completed in 1922.[1]