Kantale Dam
The 928th tallest dam in the world
The Kantale Dam (Sinhala: කන්තලේ වැව, Kantaḷe Wewa, Kantaḷāy Aṇai) is a large embankment dam built in Kantale, Trincomalee District, Sri Lanka. It is 14,000 ft (4, 267 m) long, and over 50 ft (15 m) high. The dam, used for irrigation, breached on 20 April 1986 (1986-04-20), killing more than 120 people. It has since been reconstructed. The dam impounds the Per Aru, a small river discharging into the Koddiyar Bay, at Trincomalee Harbour.
Dam data from Wikidata (CC0) plus curated additions. Summary from Wikipedia (CC BY-SA).