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Tumut Pond Dam

Tumut Pond Dam
Tumut Pond aerial.jpg
An aerial photo of Tumut Pondage and dam, 2009.
Tumut Pond Dam is located in New South Wales
Tumut Pond Dam
Location of Tumut Pond Dam in
New South Wales
Country Australia
Location Snowy Mountains, New South Wales
Coordinates 35°37′54″S 148°23′24″E / 35.63167°S 148.39000°E / -35.63167; 148.39000Coordinates: 35°37′54″S 148°23′24″E / 35.63167°S 148.39000°E / -35.63167; 148.39000
Purpose Hydro-power, diversion, irrigation
Status Operational
Opening date 1959
Owner(s) Snowy Hydro
Dam and spillways
Type of dam Arch dam
Impounds Tumut River
Height 86.3 m (283 ft)
Length 218 m (715 ft)
Dam volume 141,000 m3 (5,000,000 cu ft)
Spillway capacity 1,926 m3/s (68,000 cu ft/s)
Reservoir
Creates Tumut Pond Reservoir
Total capacity 52,793 ML (1,864.4×10^6 cu ft)
Catchment area 332 km2 (128 sq mi)
Surface area 202.7 ha (501 acres)
Power station
Operator(s) Snowy Hydro
Commission date 1959
Type Conventional
Hydraulic head 292.6 m (960 ft)
Turbines 4
Installed capacity 330 MW (440,000 hp)
Annual generation 847 GWh (3,050 TJ)

Tumut Pond Dam /ˈtjuːmət/ is a major ungated concrete arch dam across the upper reaches of the Tumut River in the Snowy Mountains of New South Wales, Australia. The dam's main purpose is for the generation of hydro-power and is one of the sixteen major dams that comprise 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.

The impounded reservoir is called the Tumut Pond Reservoir, or less formally, the Tumut Pondage.

Completed in 1959, Tumut Pond Dam is a major dam, located approximately 3 kilometres (1.9 mi) south-east of Cabramurra. The dam was constructed by a consortia comprising Kaiser-Walsh-Perini-Raymond based on engineering plans developed by the United States Bureau of Reclamation under contract from the Snowy Mountains Hydroelectric Authority.

The dam wall comprising 141,000 cubic metres (5,000,000 cu ft) of concrete is 86 metres (282 ft) high and 218 metres (715 ft) long. At 100% capacity the dam wall holds back 52,793 megalitres (1,864.4×10^6 cu ft) of water. The surface area of Tumut Pond Reservoir is 202.7 hectares (501 acres) and the catchment area is 332 square kilometres (128 sq mi). The spillway is capable of discharging 1,926 cubic metres per second (68,000 cu ft/s).


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