Nillahcootie Dam
The 928th tallest dam in the world
The Nillahcootie Dam, a rock and earth-fill embankment dam with a unique Gothic arch-shaped crest spillway across the Broken River that is located near Mansfield, in the Alpine region of Victoria, Australia. The dam's purpose is for the supply of potable water and for irrigation. The impounded reservoir is called Lake Nillahcootie.
Dam data from Wikidata (CC0) plus curated additions. Summary from Wikipedia (CC BY-SA).