Crotty Dam
| Crotty Dam | |
|---|---|
Crotty Dam (at right) aerial shot from the east | |
Location of the Crotty Dam in Tasmania | |
| Country | Australia |
| Location | West Coast Tasmania |
| Coordinates | 42°09′35″S 145°37′00″E / 42.15972°S 145.61667°E |
| Purpose | Power |
| Status | Operational |
| Opening date | 1991 |
| Owner(s) | Hydro Tasmania |
| Dam and spillways | |
| Type of dam | Embankment dam |
| Impounds | King River |
| Height | 83 metres (272 ft) |
| Length | 245 metres (804 ft) |
| Width (crest) | 300 millimetres (12 in) |
| Dam volume | 770×103 m3 (27×106 cu ft) |
| Spillways | 1 |
| Spillway type | Controlled and uncontrolled |
| Spillway capacity |
|
| Reservoir | |
| Creates | Lake Burbury |
| Total capacity | 1,081,420 ML (38,190×106 cu ft) |
| Active capacity | 1,065,000 ML (37,600×106 cu ft) |
| Catchment area | 559 km2 (216 sq mi) |
| Surface area | 53,250×103 m2 (573.2×106 sq ft) |
| John Butters Power Station | |
| Coordinates | 42°09′21″S 145°32′04″E / 42.15583°S 145.53444°E |
| Operator(s) | Hydro Tasmania |
| Commission date | 1992 |
| Type | Conventional |
| Hydraulic head | 184 metres (604 ft) |
| Turbines | 1 x 144 MW (193,000 hp) Fuji Francis turbine |
| Installed capacity | 144 megawatts (193,000 hp) |
| Capacity factor | 0.9 |
| Annual generation | 576 gigawatt-hours (2,070 TJ) |
| Website hydro | |
The Crotty Dam, also known during construction as the King Dam, or the King River Dam on initial approval, is a rockfill embankment dam with a controlled and uncontrolled spillway across the King River, between Mount Jukes and Mount Huxley, located in Tasmania, Australia. The impounded reservoir is called Lake Burbury.
The dam was constructed in 1991 as part of the King River Power Development Scheme, by the Hydro Electric Commission for the purpose of generating hydro-electric power via the John Butters Power Station located 8 kilometres (5.0 mi) below the dam wall.