Toyosawa Dam
The 494th tallest dam in the world
The Toyosawa Dam (Toyosawa damu) is a dam on the Toyosawa River, a tributary of the Kitakami River system, located in the southern portion of the city of Hanamaki, Iwate Prefecture in the Tōhoku region of northern Japan. It was completed in 1961.
Dam data from Wikidata (CC0) plus curated additions. Summary from Wikipedia (CC BY-SA).