| Copeton Dam | |
|---|---|
 Copeton Dam spillway, from the northern side looking west. | |
  Location of the Copeton Dam in New South Wales | |
| Location | New England, New South Wales, Australia |
| Coordinates | 29°54′23″S 150°55′38″E / 29.90639°S 150.92722°E |
| Purpose | hydro-electric power generation, irrigation, and water supply |
| Status | Operational |
| Construction began | 1968 |
| Opening date | 1973 |
| Owner(s) | WaterNSW |
| Dam and spillways | |
| Type of dam | Embankment dam |
| Impounds | Gwydir River |
| Height | 113 m (371 ft) |
| Length | 1,484 m (4,869 ft) |
| Width (crest) | 10.7 m (35 ft) |
| Dam volume | 8,547 m3 (301,800 cu ft) |
| Spillway type | Gate-controlled concrete chute spillway |
| Spillway capacity | 1,280,000 ML (45,000×106 cu ft) per day |
| Reservoir | |
| Creates | Lake Copeton |
| Total capacity | 1,364,000 ML (48,200×106 cu ft) |
| Catchment area | 5,360 km2 (2,070 sq mi) |
| Surface area | 4,600 ha (11,000 acres) |
| Maximum width | 427 m (1,401 ft) |
| Maximum water depth | 104 m (341 ft) |
| Power Station | |
| Operator(s) | AGL Energy |
| Commission date | December 1996 |
| Type | Conventional |
| Turbines | 1 |
| Installed capacity | 21 MW (28,000 hp) |
| Annual generation | 54.3 GWh (195 TJ) |
| Website Copeton Dam at www.statewater.com.au | |
Copeton Dam is a major clay core and rock fill embankment dam with nine radial gates and a gated concrete chute spillway across the Gwydir River upstream of Bingara in the New England region of New South Wales, Australia. The dam's purpose includes environmental flows, hydro-electric power generation, irrigation, and water supply. The impounded reservoir is called Lake Copeton.