Fukuji Dam
The 173rd tallest dam in the world
The Fukuji Dam or Fukuchi Dam is a rock-fill embankment dam on the Fukuchi River 2.5 km (2 mi) northeast of Higashi, Okinawa Prefecture, Japan. The purpose of the dam, the tallest in Okinawa, is water supply and flood control.
Dam data from Wikidata (CC0) plus curated additions. Summary from Wikipedia (CC BY-SA).