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 is a water source for Perth.
It has a capacity of 2.24 gigalitres (79 million cubic feet) for a catchment area of 16 square kilometres (6.2 sq mi).[1]
The creation of the dam was announced in March 1923 by Premier James Mitchell. Along with Canning Dam and Wungong Dam, it formed part of the Hills Water Supply Scheme which was intended to rectify severe water shortages in metropolitan Perth. Its capacity was initially estimated at 595 million gallons.[2]
^"METROPOLITAN WATER SUPPLY". The West Australian. Vol. XXXIX, no. 6, 694. Western Australia. 7 November 1923. p. 8. Retrieved 10 May 2017 – via National Library of Australia., ...The first section — the construction of a dam at Churchman's Brook — has been approved; operations, on the site will commence next week...
Churchman Brook Catchment Area Drinking Water Source Protection Plan – Integrated Water Supply System, Department of Water, Government of Western Australia, Water Resource Protection Series Report No. WRP 66.