Pirika Dam
The 913th tallest dam in the world
The Pirika Dam is a dam located in Imakane, Setana District, Hiyama, Hokkaidō, Japan. At 1480 meters in length, it is the longest dam in Japan and the largest in southern Hokkaidō. It is known for hosting the longest fish race in Japan (2.4 km).
Dam data from Wikidata (CC0) plus curated additions. Summary from Wikipedia (CC BY-SA).