The Snowy Mountains scheme is the largest engineering project undertaken in Australia, beginning in 1949 and reaching completion in 1974. The scheme, in the High Country of Southern New South Wales, involved redirecting water from the east-flowing Snowy River through a series of tunnels and dams across the range to produce ten percent of New South Wales' power needs and deliver the water to the Murray and Murrumbidgee Rivers. The scheme has sixteen major dams, seven power stations and 225 kilometers of tunnels, pipelines and aqueducts. The scheme has left the Snowy River with extremely low flows (approximately one percent of original) and plans are now in place to reinstate 21% of original flow to the river to improve its health.
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