Tumut Pondage
| Tumut Pond Dam | |
|---|---|
An aerial photo of Tumut Pondage and dam, 2009.
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 Location of Tumut Pond Dam in
New South Wales |
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| Country | Australia |
| Location | Snowy Mountains, New South Wales |
| Coordinates | 35°37′54″S 148°23′24″E / 35.63167°S 148.39000°ECoordinates: 35°37′54″S 148°23′24″E / 35.63167°S 148.39000°E |
| 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 (1,864.4×106 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 (1,864.4×106 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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