Warragamba Dam

Warragamba Dam, a concrete gravity dam, creates Lake Burragorang, the primary reservoir for water supply for the Australian city of Sydney, New South Wales.The dam impounds the Coxs, Kowmung, Nattai, Wingecarribee, Wollondilly, and Warragamba rivers, within the Hawkesbury-Nepean catchment; and the dam wall is located approximately to the southwest of Sydney central business district, near the town of Wallacia. Constructed between 1948 and 1960, the dam created capacity for a reservoir of 2031GL and is fed by a catchment area of. The surface area of the lake covers of the now flooded Burragorang Valley. Enhancements to the dam were completed in 2009, including the addition of an auxiliary spillway to manage extreme flood events.A small hydroelectric power station is incorporated into the design of the dam and may operate at times of peak discharge; but has rarely generated power in recent years.