380,000 ML (84×10^9 imp gal; 100×10^9 US gal)[1][3]
Inactive capacity
524,000 ML (115×10^9 imp gal; 138×10^9 US gal)[2]
Catchment area
1,330 km2 (510 sq mi)[1]
Surface area
4,350 ha (10,700 acres)[1]
Maximum length
52 m (171 ft)
Maximum width
7 m (23 ft)
Normal elevation
108 m (354 ft) AHD
Somerset Dam
Commission date
1959 (1959)
Installed capacity
3.2 MW (4,300 hp)
Annual generation
12 GWh (43 TJ)
Website www.seqwater.com.au
The Somerset Dam is a mass concrete gravity dam with a gated spillway across the Stanley River in Queensland, Australia. It is within the locality of Somerset Dam in the Somerset Region in South East Queensland. The main purpose of the dam is the supply of potable water for the Brisbane, Gold Coast and Logan City regions. Additionally, the dam provides for flood mitigation, recreation and for the generation of hydroelectricity.[1] The impounded reservoir is called Lake Somerset.
As early as the 1960s it had become clear that the dam could not meet the water requirements of the region by the 1980s.[4]
The dam, lake and surrounding village of Somerset are named in honour of Henry Plantagenet Somerset, a local grazier and Member of the Legislative Assembly of Queensland who represented the seat of Stanley[2] from 1904 until 1920.
^ abcdefghi"Register of Large Dams in Australia". Dams information. Australian National Committee on Large Dams. 2010. Archived from the original (Excel (requires download)) on 12 December 2013. Retrieved 4 July 2014.
^ abcd"About". Somerset Dam, Queensland. Archived from the original on 14 July 2014. Retrieved 7 July 2014.
^"Somerset Dam". Dams and weirs. SEQ Water. Archived from the original on 14 April 2014. Retrieved 7 July 2014.
^Doyle, Kate (16 January 202). "What astounds about floods in Brisbane is that they continue to take us by surprise". ABC News. Archived from the original on 21 January 2024. Retrieved 27 November 2023.
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