Churchman Brook Dam
The 928th tallest dam in the world
The Churchman Brook Dam is an earth-fill embankment dam approximately 30 kilometres (20 mi) southeast of Perth, Western Australia in the City of Armadale. The reservoir serves as a source of potable water for Perth. The reservoir has a capacity of 2.24 gigalitres (79 million cubic feet) for a catchment area of 16 square kilometres (6.2 sq mi).
Dam data from Wikidata (CC0) plus curated additions. Summary from Wikipedia (CC BY-SA).