Windamere Dam
The 381st tallest dam in the world
Windamere Dam is a minor ungated rock fill with clay core embankment dam with an uncontrolled unlined rock cutting spillway across the Cudgegong River at Cudgegong, upstream of Mudgee in the Central Tablelands of New South Wales, Australia. The dam's purpose includes hydro-power, irrigation, water supply, and conservation. The impounded reservoir is called Lake Windamere.
Dam data from Wikidata (CC0) plus curated additions. Summary from Wikipedia (CC BY-SA).