Borumba Dam
Encyclopedia
Constructed in 1964, Borumba Dam (Lake Borumba) is one of Queensland
Queensland
Queensland is a state of Australia, occupying the north-eastern section of the mainland continent. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean...

's most established lakes. Built across Yabba Creek (a tributary of the Mary River
Mary River (Queensland)
The Mary River is a river system in South East Queensland, Australia. The river rises at Booroobin in the Sunshine Coast hinterland, west of Landsborough...

), about 11 kilometres (6.8 mi) north of Imbil
Imbil, Queensland
Imbil is a town in the Sunshine Coast hinterland of Queensland, Australia. The town is located in the Gympie Region local government area and in the Mary River valley, north of the state capital, Brisbane. At the 2006 census, Imbil had a population of 469....

, the lake has a surface area of 500 hectares at an average depth of 6.6 metres. This is utilised primarily for irrigation
Irrigation
Irrigation may be defined as the science of artificial application of water to the land or soil. It is used to assist in the growing of agricultural crops, maintenance of landscapes, and revegetation of disturbed soils in dry areas and during periods of inadequate rainfall...

 purposes and flood mitigation
Flood mitigation
Flood mitigation involves managing the effects of flooding, such as redirecting flood run-off, rather than trying to prevent it altogether. It is management of people, through measures such as evacuation and dry/wet proofing properties for example....

. Raising of Borumba Dam by about 2.5 metres was carried out in 1997.

SunWater, the government-owned water resources company, is undertaking a dam spillway capacity upgrade program to ensure the highest level of safety for this and all Queensland dams. The spillway will be upgraded before 2010.

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