South Dandalup Dam is a

dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use ...

Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...

. It is located where the South Dandalup River flows out of

Lake Banksiadale Lake Banksiadale is a man-made reservoir located in the Peel region of Western Australia. It is located about north-east of Dwellingup in the locality of Banksiadale, Shire of Murray. Since 1971 it has been the site of the South Dandalup Dam, ...

. The dam was built in 1971 in response to rapid population growth in

Perth Perth is the capital and largest city of the Australian state of Western Australia. It is the fourth most populous city in Australia and Oceania, with a population of 2.1 million (80% of the state) living in Greater Perth in 2020. Perth i ...

, Western Australia's capital city, and a resources boom in the

Pilbara The Pilbara () is a large, dry, thinly populated region in the north of Western Australia. It is known for its Aboriginal peoples; its ancient landscapes; the red earth; and its vast mineral deposits, in particular iron ore. It is also a g ...

. The dam was officially opened in 1974. With a reservoir capacity of , it is the second-largest dam providing water to Perth. It has a catchment area of , a surface area of at full storage, and a reservoir length of . The dam itself is an earthfilled embankment dam, high and wide. Located only north-east of the historic town of Dwellingup, and around from Perth, it is a popular recreation area. Western Australia's Water Corporation manages the area, and has provided facilities including picnic areas with gas barbecues, and a number of walk trails.

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Lake Banksiadale
in the

Gazetteer of Australia The Gazetteer of Australia is an index or dictionary of the location and spelling of geographical names across Australia. Geographic names include towns, suburbs and roads, plus geographical features such as hills, rivers, and lakes. The index is ...

* {{cite web , url = http://www.watercorporation.com.au/D/dams_dandalup_south.cfm , title = South Dandalup Dam , access-date = 18 October 2006 , publisher = Water Corporation , url-status = dead , archive-url = https://web.archive.org/web/20061003124210/http://www.watercorporation.com.au/D/dams_dandalup_south.cfm , archive-date = 3 October 2006 Dams completed in 1971 Dams in Western Australia Darling Range Shire of Murray