The Blue Mountains Dams are a series of 6 dams in the Blue Mountains which supply water to the Blue Mountains and Sydney, Australia. The Dams are magaged by the Sydney Catchment Authority. Water in this schem may be supplemented from the Fish River Scheme.
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There are three dams built on the Cascade Creek, near Katoomba, known as Cascade numbers 1,2 and 3. The Middle Dam was first, completed in 1908. It is 15 meters tall; 105 m long; and holds 160 megaliters. The Lower Cascade Dam is an earthfill embankment dam with a central concrete core which was completed in 1926. It is 26 m high; 128 m long; and holds 320 megalitres. The Upper Cascade Dam is another earthfill embankment dam, built in 1938. It is 30 m high; 247 m long; and it holds 1,700 megalitres.
The Lake Medlow and Greaves Creek Dams were built on the Adams and Greaves Creeks respectively. Lake Medlow Dam was the first concrete thin arch, high stress dam built in New South Wales, and is one of the thinnest dams in the world. It is 20 m high; 38 m long; and holds 300 megalitres. Greaves Creek Dam is also a concrete arch dam, it was completed in 1942. It is 19 m high; 67 m long; and holds 310 megalitres. Sydney Water have decommissioned the Greaves Creek Treatment Plant.
Woodford Creek Dam is a concrete arch dam which was built on the junction of Woodford Creek and Bulls Creek and completed in 1928. It was subsequently raised several times. It is 16 m high and 144 m long. Sydney Water no longer draws water from Woodford Dam. In late 2009 Woodford Dam surrounds were opened up to walkers and mountain bikers[1]. Access to the dam wall and lake is still prohibited.
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