Blowering Dam
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The Blowering Dam is a major ungated rock fill with clay core embankment dam with concrete chute spillway impounding a reservoir under the same name. It is located on the Tumut River upstream of Tumut in the Snowy Mountains region of New South Wales, Australia. Purposes for the dam include flood mitigation, hydro-power, irrigation, water supply and conservation. The dam is part of the Snowy Mountains Scheme, a vast hydroelectricity and irrigation complex constructed in south-east Australia between 1949 and 1974 and now run by Snowy Hydro.
Location and features
Commenced in 1964, completed in 1968, and upgraded in 2010, the Blowering Dam is a major ungated dam, located approximately Template:Convert south of Tumut. The dam was built by consortium including Morrison, Knudsen, Utah and Mcdonald on behalf of the New South Wales Department of Land and Water Conservation for town water supplies, river flows and domestic requirements, irrigated agriculture, industry, flood mitigation and environmental flows.[1][2][3] Together with releases from Burrinjuck Dam, on the Murrumbidgee River, Blowering Dam also provides a regulated flow of water for the Coleambally and Murrumbidgee Irrigation Areas.[1]
The dam wall constructed with Template:Convert of rock fill with clay core is Template:Convert high and Template:Convert long. The maximum water depth is Template:Convert and at 100% capacity the dam wall holds back Template:Convert of water at Template:Convert AHD. The surface area of the Blowering Reservoir is Template:Convert and the catchment area is Template:Convert. The uncontrolled concrete chute spillway is capable of discharging Template:Convert.[1][2][3]
A Template:AUD33 million upgrade of facilities was completed between 2009 and 2012, and involved the construction of a parapet wall on top of the dam wall crest and raising the spillway training walls. The addition of the parapet wall increased the crest height to Template:Convert. Storage capacity and water releases from the dam were not altered by the upgrade.[4][5]
Power generation
Script error: No such module "Labelled list hatnote". The dam houses a hydroelectric power station and has one turbine generator, with a generating capacity of Template:Convert of electricity; with a net generation of Template:Convert per annum. The power station has Template:Convert rated hydraulic head.
Recreation
In 1978, Ken Warby set the water speed record of Template:Convert on Blowering Reservoir[6] – a record that still stands.
Gallery
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Blowering Dam wall.
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Model of Spirit of Australia in which Ken Warby set the world water speed record in 1978 on the dam.Model of Spirit of Australia in which Ken Warby set the world water speed record in 1978 on the dam.
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View of Blowering Reservoir from Blowering Dam, 2012.
See also
- List of dams and reservoirs in New South Wales
- Hume and Hovell Track
- Snowy Mountains Scheme
- Snowy Hydro Limited
References
External links
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- Blowering Dam at Ken Warby's website
- Storage Report from NSW Water Information
- Hydro Power Stations at Snowy Hydro
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