Thomson Dam

Thomson Dam
Thomson Dam
	Location of the Thomson Dam in Victoria
Country	Australia
Location	West Gippsland, Victoria
Coordinates	37°50′34″S 146°23′56″E / 37.84278°S 146.39889°E
Purpose	Water supply, irrigation
Status	Operational
Construction began	1976
Opening date	May 1983
Owner(s)	Melbourne Water
Dam and spillways
Type of dam	Embankment dam
Impounds	Thomson River
Height (foundation)	166 m (545 ft)
Length	590 m (1,940 ft)
Dam volume	1.417 million m3 (50.0 million cu ft)
Spillways	1
Spillway type	Uncontrolled Ogee-shaped overflow weir and chute
Spillway capacity	1,040 m3/s (37,000 cu ft/s)
Reservoir
Creates	Thomson Reservoir (official); called Lake Thomson
Total capacity	1.12309 million ML (247.05 billion imp gal; 296.69 billion US gal)
Catchment area	487 km2 (188 sq mi)
Surface area	22.3 km2 (8.6 sq mi)
Normal elevation	494 m (1,621 ft) AHD
	Website; Thomson Reservoir at Melbourne Water

The Thomson Dam is a major Clay core and rockfill embankment dam with a Uncontrolled, Ogee-shaped overflow weir and chute spillway across the Thomson River, located about 130 kilometres (81 mi) east of Melbourne in the West Gippsland region of the Australian state of Victoria. The reservoir (or storage basin) created by the dam is officially called Thomson Reservoir, sometimes called Lake Thomson.