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Gordon Dam
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Gordon Dam
The Gordon Dam, also known as the Gordon River Dam, is a major gated double curvature concrete arch dam with a controlled spillway across the Gordon River, located in Southwest National Park, Tasmania, Australia. The impounded reservoir is called Lake Gordon.
The dam was constructed in 1974 by the Hydro Electric Corporation for the purpose of generating hydroelectricity via the conventional Gordon Power Station located below the dam wall.
The Gordon Dam wall, constructed with 154 thousand cubic metres (5.4×106 cu ft) of concrete, is 198 metres (650 ft) long and 140 metres (460 ft) high, making it the tallest dam in Tasmania and the fifth-tallest in Australia. At 100% capacity the dam wall holds back 12,359,040 thousand cubic metres (436,455×106 cu ft) of water; making Lake Gordon the largest lake in Australia. The surface area of the lake is 27,800 hectares (69,000 acres) and the catchment area is 2,014 square kilometres (778 sq mi). The single controlled spillway is capable of discharging 175 cubic metres per second (6,200 cu ft/s).
Approximately 48 arch dams have been built in Australia and only nine have double curvature. Gordon Dam is almost twice the height of the next highest arch dam, Tumut Pondage.
Water from the dam descends 183 metres (600 ft) underground into its power station, where three 144-megawatt (193,000 hp) turbines generate up to 432 megawatts (579,000 hp) of power, covering about 13% of the electricity demand of Tasmania. The first two turbines were commissioned in 1978, before the third was commissioned a decade later in 1988.
The power station is fueled by water from Lake Gordon. Water from Lake Pedder is also drawn into Lake Gordon through the McPartlans Pass Canal at 42°50′51″S 146°11′45″E / 42.84750°S 146.19583°E.
In 1963, the federal government provided a $5 million grant to Tasmania's Hydro-Electric Commission to build the Gordon River Road from Maydena into the Gordon River area in the South West Wilderness region. Construction was underway by 1964, and within three years, the Tasmanian State Parliament approved the Gordon River Power Development with little in-house opposition in 1967. Power operation began in 1978; a third generator was added in 1988.
The completed Gordon Dam was the only dam built on the Gordon River, despite the support of Tasmanian politicians such as Eric Reece, Robin Gray, and others to build the Franklin Dam further downstream. The construction of Gordon Dam resulted in some flooding of the connected Lake Pedder as planned. Subsequent opposition to restore Lake Pedder failed after a Parliamentary inquiry in 1995.
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Gordon Dam
The Gordon Dam, also known as the Gordon River Dam, is a major gated double curvature concrete arch dam with a controlled spillway across the Gordon River, located in Southwest National Park, Tasmania, Australia. The impounded reservoir is called Lake Gordon.
The dam was constructed in 1974 by the Hydro Electric Corporation for the purpose of generating hydroelectricity via the conventional Gordon Power Station located below the dam wall.
The Gordon Dam wall, constructed with 154 thousand cubic metres (5.4×106 cu ft) of concrete, is 198 metres (650 ft) long and 140 metres (460 ft) high, making it the tallest dam in Tasmania and the fifth-tallest in Australia. At 100% capacity the dam wall holds back 12,359,040 thousand cubic metres (436,455×106 cu ft) of water; making Lake Gordon the largest lake in Australia. The surface area of the lake is 27,800 hectares (69,000 acres) and the catchment area is 2,014 square kilometres (778 sq mi). The single controlled spillway is capable of discharging 175 cubic metres per second (6,200 cu ft/s).
Approximately 48 arch dams have been built in Australia and only nine have double curvature. Gordon Dam is almost twice the height of the next highest arch dam, Tumut Pondage.
Water from the dam descends 183 metres (600 ft) underground into its power station, where three 144-megawatt (193,000 hp) turbines generate up to 432 megawatts (579,000 hp) of power, covering about 13% of the electricity demand of Tasmania. The first two turbines were commissioned in 1978, before the third was commissioned a decade later in 1988.
The power station is fueled by water from Lake Gordon. Water from Lake Pedder is also drawn into Lake Gordon through the McPartlans Pass Canal at 42°50′51″S 146°11′45″E / 42.84750°S 146.19583°E.
In 1963, the federal government provided a $5 million grant to Tasmania's Hydro-Electric Commission to build the Gordon River Road from Maydena into the Gordon River area in the South West Wilderness region. Construction was underway by 1964, and within three years, the Tasmanian State Parliament approved the Gordon River Power Development with little in-house opposition in 1967. Power operation began in 1978; a third generator was added in 1988.
The completed Gordon Dam was the only dam built on the Gordon River, despite the support of Tasmanian politicians such as Eric Reece, Robin Gray, and others to build the Franklin Dam further downstream. The construction of Gordon Dam resulted in some flooding of the connected Lake Pedder as planned. Subsequent opposition to restore Lake Pedder failed after a Parliamentary inquiry in 1995.
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