Bendora Dam | |
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Location of the Bendora Dam in the ACT | |
Country | Australia |
Location | Australian Capital Territory |
Coordinates | 35°26′49″S148°49′41″E / 35.447°S 148.828°E Coordinates: 35°26′49″S148°49′41″E / 35.447°S 148.828°E |
Purpose | Potable water supply |
Status | Operational |
Opening date | 1961 |
Owner(s) | ACTEW Corporation |
Dam and spillways | |
Type of dam | Arch dam |
Impounds | Cotter River |
Height | 47 m (154 ft) |
Length | 174 m (571 ft) |
Elevation at crest | 778.2 m (2,553 ft) AHD |
Dam volume | 30×10 3 m3 (1.1×10 6 cu ft) |
Spillways | 1 |
Spillway type | Uncontrolled |
Spillway capacity | 1,590 m3/s (56,000 cu ft/s) |
Reservoir | |
Creates | Bendora Reservoir |
Total capacity | 11,540 ML (2.54×109 imp gal; 3.05×109 US gal) |
Catchment area | 91.364 km2 (35.276 sq mi) + 196.342 km2 (75.808 sq mi) in Corin dam catchment |
Surface area | 75 ha (190 acres) |
Website Bendora Dam at ACTEW Water |
The Bendora Dam is a thin-wall, double curvature concrete arch dam across the upper reaches of the Cotter River, located within Namadgi National Park in the Australian Capital Territory, Australia. The impounded reservoir is called the Bendora Reservoir which is a supply source of potable water for the city of Canberra and its environs.
Constructed by E S Clementson working from designs prepared by the Commonwealth Department of Works, the Bendora Dam was completed and opened in 1961 and was the first dam of its type built in Australia. [1] The concrete dam wall built on a rock foundation is 47.2 metres (155 ft) high and 174 metres (571 ft) long with a volume of 30 thousand cubic metres (1.1×10 6 cu ft). The wall impounds 11,540 megalitres (408×10 6 cu ft) of water held within the Bendora Reservoir, forming a surface area of approximately 75 hectares (190 acres) [2] [3] [4] The uncontrolled spillway is capable of discharging 1,590 cubic metres per second (56,000 cu ft/s) from the 75-hectare (190-acre) Bendora Reservoir, [2] with a high water level approximately 778 metres (2,552 ft) above sea level. [4]
Water from the Bendora, together with the Corin (further upstream), is fed to the suburbs of Canberra via the Bendora Gravity Main.
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Icon Water Limited, trading principally as Icon Water, is a water and wastewater public utility that is an Australian Capital Territory-owned corporation. The company provides drinking water and wastewater services to the ACT. Icon Water is also a 50% owner of ActewAGL, a multi-utility provider of electricity and gas services in the ACT and south-east New South Wales. Icon Water Limited is also the owner of Bendora Dam, Corin Dam, Cotter Dam and Googong Dam in New South Wales. Water is gravity fed to Canberra via the Bendora Gravity Main and pumped from Googong Dam. Icon Water operates, and maintains 50 service reservoirs, 25 pump stations, 2 water treatment plants, 27 sewage pumping stations, 4 sewage treatments plants, over 3,400 km of sewer pipelines and over 3,400 km of water pipelines.
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The Bendora Gravity Main is a water main located in the Australian Capital Territory, Australia.
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The Corin Dam is an earth and rockfill embankment dam with an uncontrolled side channel spillway across the Cotter River, located within Namadgi National Park in the Australian Capital Territory, Australia. The impounded reservoir is called the Corin Reservoir which is a supply source of potable water for the city of Canberra and its environs. It is named after William Corin (1867–1929), a pioneer in hydroelectric development in Australia.
Media related to Bendora Dam at Wikimedia Commons