Fairbairn Dam
dam in Australia
The Fairbairn Dam is an earth-filled embankment dam across the Nogoa River, located southwest of Emerald in Central Queensland, Australia. Constructed in 1972 for the primary purpose of irrigation, the impoundment created by the dam serves as one of the major potable water supplies for the region and assists with some flood mitigation.
Lake Maraboon with an active capacity of 1,301,000 ML (2.86×1011 imp gal; 3.44×1011 US gal) was formed by damming of the Nogoa River, and, in 2008, was Queensland's second largest dam. Its capacity is approximately three times larger than Sydney Harbour. Maraboon is the Aboriginal for "where the black ducks fly".
Location and features
Commenced in 1968, the dam was engineered by Snowy Mountains Hydro-Electric Authority and completed in December 1972 for the purposes of irrigation and water storage. Storage of water commenced in January 1972 and the dam filled and overflowed for the first time two years later. The dam wall consists of a 5,249 thousand cubic metres (185.4×10^6 cu ft) earthfill embankment 823 metres (2,700 ft) in length and 46 metres (151 ft) high. The reservoir has a catchment area of 16,320 square kilometres (6,300 sq mi) with an uncontrolled concrete spillway capable of discharging 15,580 cubic metres per second (550,000 cu ft/s). The reservoir has an active capacity of 1,301,000 ML (2.86×1011 imp gal; 3.44×1011 US gal) of water; When the dam spills over it flows into the Nogoa River.
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