Yumen Dam
The 745th tallest dam in the world
Yumen Dam is a gravity dam located in Yamaguchi prefecture in Japan. The dam is used for flood control and water supply. The catchment area of the dam is 1.9 km2. The dam impounds about 4 ha of land when full and can store 740 thousand cubic meters of water. The construction of the dam was started on 1993 and completed in 2006.
Dam data from Wikidata (CC0) plus curated additions. Summary from Wikipedia (CC BY-SA).