| Gokayama Dam | |
| Location: | Fukuoka Prefecture, Japan |
| Dam Length: | 556m |
| Dam Height: | 102.5m |
| Construction Began: | 1983 |
| Opening: | 2017 |
| Res Capacity Total: | 40200 thousand cubic meters |
| Res Catchment: | 18.9 sq. km |
| Res Surface: | 130 hectares |
| Coordinates: | 33.4142°N 130.4189°W |
| Location Map: | Japan |
Gokayama Dam is a gravity dam located in Fukuoka Prefecture in Japan. The dam is used for flood control and water supply. The catchment area of the dam is 18.9 km2. The dam impounds about 130 ha of land when full and can store 40200 thousand cubic meters of water. The construction of the dam was started on 1983 and completed in 2017.[1]