Wyangala Dam

Wyangala Dam
Wyangala Dam, near full capacity, 2012
Wyangala Dam is located in New South Wales
Wyangala Dam
Location of the Wyangala Dam in
New South Wales
LocationNew South Wales, Australia
Coordinates33°57′S 148°59′E / 33.950°S 148.983°E / -33.950; 148.983
StatusOperational
Construction began1928
Opening date1935
Construction cost1.352 million
Owner(s)State Water Corporation
Dam and spillways
Type of damEmbankment dam
ImpoundsLachlan River
Height85 m (279 ft)
Length1,370 m (4,490 ft)
Dam volume3,580 m3 (126,000 cu ft)
Spillways9
Spillway typeRadial gates and concrete chute
Spillway capacity14,700 m3/s (520,000 cu ft/s)
Reservoir
CreatesLake Wyangala
Total capacity1,220,000 ML (43,000×10^6 cu ft)
Catchment area8,300 km2 (3,200 sq mi)
Surface area5,390 ha (13,300 acres)
Maximum water depth79 m (259 ft)
Normal elevation379 m (1,243 ft) AHD
Power Station
TypeConventional
Installed capacity18 MW (24,000 hp)
Annual generation42.9 GWh (154 TJ)
Website
Wyangala Dam at www.statewater.com.au

Wyangala Dam is a major gated rock fill with clay core embankment and gravity dam with eight radial gates and a concrete chute spillway across the Lachlan River, located in the south-western slopes region of New South Wales, Australia. The dam's purpose includes flood mitigation, hydro-power, irrigation, water supply and conservation. The impounded reservoir is called Lake Wyangala.