Lake Manchester Dam

Lake Manchester Dam is a concrete gravity dam with an un-gated spillway across Cabbage Tree Creek. It is also known as Cabbage Tree Creek Dam. It is in the locality of Lake Manchester, City of Brisbane, Queensland, Australia. The main purpose of the dam is for potable water supply of Brisbane. The impounded reservoir is called Lake Manchester.

Lake Manchester Dam
Location of the Lake Manchester Dam
in Queensland
CountryAustralia
LocationSouth East Queensland
Coordinates27°29′17″S 152°45′5″E
Purpose
StatusOperational
Construction began1912 (1912)
Opening date
  • 1916 (1916)
  • 2008 (2008) (upgrade)
Operator(s)SEQ Water
Dam and spillways
Type of damGravity dam
ImpoundsCabbage Tree Creek
Height43.8 m (144 ft)
Length188 m (617 ft)
Dam volume45×10^3 m3 (1.6×10^6 cu ft)
Spillway typeUncontrolled
Spillway capacity450 m3/s (16,000 cu ft/s)
Reservoir
CreatesLake Manchester
Total capacity26,217 ML (5.767×109 imp gal; 6.926×109 US gal)
Catchment area74 km2 (29 sq mi)
Surface area264 ha (650 acres)
Website
www.seqwater.com.au
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