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Lake Gordon dam

The Gordon Dam wall, constructed with 1,540 thousand cubic metres of concrete, is 198 metres (650 ft) long and 140 metres (460 ft) high, making it the tallest dam in Tasmania and the fifth-tallest in Australia.[3] At 100% capacity the dam wall holds back 12,359,040 megalitres (436,455×106 cu ft) of water; making Lake Gordon the largest lake in Australia. The reservoir was formed in the early 1970s as a result of the dam construction by the Hydro-Electricity Commission of Tasmania in order to create an upper storage for the Gordon Power Station, the largest and most controversial hydro-electric power scheme in Tasmania. Drawing from a catchment area of 1,280 square kilometres (490 sq mi), Lake Gordon has a surface area of 278 thousand square metres (3×106 sq ft), with storage capacity of 12,359,040 megalitres (436,455.4×106 cu ft)[1] or 12.5 km3 (3.0 cu mi) of water, the equivalent of twenty-five times the amount of water in Port Jackson. Lake Pedder is connected to Lake Gordon through the McPartlans Pass Canal.