Dartmouth Dam
| Dartmouth Dam | |
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Dartmouth Dam wall, pictured in April 2003
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 Location of the Dartmouth Dam in Victoria
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| Country | Australia |
| Location | Victoria |
| Coordinates | 36°33′29″S 147°31′25″E / 36.55806°S 147.52361°ECoordinates: 36°33′29″S 147°31′25″E / 36.55806°S 147.52361°E |
| Status | Operational |
| Construction began | 1973 |
| Opening date | 1979 |
| Construction cost | A$139 million |
| Owner(s) | Murray Darling Basin Authority |
| Operator(s) | Goulburn–Murray Water |
| Dam and spillways | |
| Type of dam | Embankment dam |
| Impounds |
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| Height | 486 m (1,594 ft) AHD |
| Height (thalweg) | 180 m (591 ft) |
| Length | 92 m (302 ft) |
| Width (crest) | 670 m (2,198 ft) |
| Width (base) | 700 m (2,297 ft) |
| Dam volume | 14.1×106 m3 (498×106 cu ft) |
| Spillway type | Uncontrolled chute |
| Spillway capacity | 2,750 m3/s (97,115 cu ft/s) |
| Reservoir | |
| Creates | Dartmouth Reservoir |
| Total capacity | 3,856 GL (848×109 imp gal; 1,019×109 US gal) |
| Inactive capacity | 71 GL (16×109 imp gal; 19×109 US gal) |
| Catchment area | 3,600 km2 (1,390 sq mi) |
| Surface area | 6,300 ha (15,568 acres) |
| Power station | |
| Name | Dartmouth Power Station |
| Operator(s) | AGL Hydro |
| Commission date | January 1981 |
| Type | Francis-type |
| Turbines | 1 x 180 MW (241,384 hp) |
| Installed capacity | 150 MW (201,153 hp) |
| Annual generation | 310 GWh (1,116 TJ) |
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Website Dartmouth Dam at the Murray-Darling Basin Authority |
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Dartmouth Dam is a large rock-fill embankment dam with an uncontrolled chute spillway across the Mitta Mitta, Gibbo, and Dart rivers, the Morass Creek and a number of small tributaries. The dam is located near Mount Bogong in the north-east of the Australian state of Victoria. The dam's purpose includes irrigation, the generation of hydro-electric power, water supply and conservation. The impounded reservoir is called Dartmouth Reservoir, sometimes called Lake Dartmouth. The Dartmouth Power Station, a hydro-electric power station that generates power to the national grid, is located near the dam wall.
A smaller pond, called the Dartmouth Dam Regulating Pond or Banimboola Pondage, approximately 9 kilometres (6 mi) downstream of the main dam, also across the Mitta Mitta River, is located adjacent the Banimboola Hydroelectric Power Station and forms part of the Dartmouth Dam complex of facilities.
Designed by the State Rivers and Water Supply Commission of Victoria, construction commenced in 1973 and was completed in 1979 by Thiess Bros. Pty Limited, at a cost of A$139 million. The embankment dam wall is constructed with an earth core and rock fill, rising to a height of 180 metres (591 ft) from the lowest part of the foundation to the roadway across the top of the dam; making the dam wall the highest in Australia. The core component materials of the wall include 10.5 million cubic metres (370×106 cu ft) of rock, 0.8 million cubic metres (28×106 cu ft) of filter material made from crushed quarried rock, and 2.8 million cubic metres (99×106 cu ft) of earth for the core. The reservoir has a capacity of 3,856 gigalitres (1.018647433893×1012 US gal), or approximately 6.7 times the capacity of Sydney Harbour; and can release a maximum outflow of approximately 12,000 megalitres (3.170064628×109 US gal) per day in normal operation.
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Wikipedia