Tantangara Dam
| Tantangara Dam | |
|---|---|
Tantangara Dam and spillway across
the Murrumbidgee River, 2010. |
|
 Location of the Tantangara Dam
in New South Wales |
|
| Country | Australia |
| Location | Snowy Mountains, New South Wales |
| Coordinates | 35°47′54″S 148°40′04″E / 35.79833°S 148.66778°ECoordinates: 35°47′54″S 148°40′04″E / 35.79833°S 148.66778°E |
| Status | Operational |
| Construction began | 1958 |
| Opening date | 1960 |
| Owner(s) | Snowy Hydro |
| Dam and spillways | |
| Type of dam | Gravity dam |
| Impounds | Murrumbidgee River |
| Height | 45.1 metres (148 ft) |
| Length | 216.4 metres (710 ft) |
| Elevation at crest | 1,230 metres (4,040 ft) AHD |
| Dam volume | 73,800 cubic metres (2,610,000 cu ft) |
| Spillways | 1 |
| Spillway capacity | 900 cubic metres per second (32,000 cu ft/s) |
| Reservoir | |
| Creates | Tantangara Reservoir |
| Total capacity | 254,099 megalitres (8,973.4×106 cu ft) |
| Catchment area | 460 square kilometres (180 sq mi) |
| Surface area | 2,117.7 hectares (5,233 acres) |
| Maximum water depth | 19 metres (62 ft) |
| Normal elevation | 544 metres (1,785 ft) AHD |
|
Website Dams at www.snowyhydro.com.au |
|
Tantangara Dam is a major ungated concrete gravity dam with concrete chute spillway across the Murrumbidgee River upstream of Adaminaby in the Snowy Mountains region of New South Wales, Australia. 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. The purpose of the dam includes water management and conservation, with much of the impounded headwaters diverted to Lake Eucumbene. The impounded reservoir is called Tantangara Reservoir.
Commenced in 1958 and completed in 1960, the Tantangara Dam is located on the Murrumbidgee River, approximately 6 kilometres (3.7 mi) downstream of its confluence with Gurrangorambla Creek and is wholly within the Kosciuszko National Park. Her Royal Highness Princess Alexandra of Kent visited the dam in 1959, during its construction.
The dam was constructed by Utah-Brown & Root Sudamericana on behalf of the Snowy Mountains Hydro-Electric Authority, and is now managed by Snowy Hydro Limited. The concrete gravity dam of 73,800 cubic metres (2,610,000 cu ft) is 45 metres (148 ft) high with a crest length of 216 metres (709 ft). At 100% capacity, the dam wall holds back 254,099 megalitres (8,973.4×106 cu ft) of water. The surface area of Tantangara Reservoir is 2,117.7 hectares (5,233 acres) and the catchment area is 460 square kilometres (180 sq mi). The spillway across the Murrumbidgee River is capable of discharging 900 cubic metres per second (32,000 cu ft/s).
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Wikipedia