Lake Margaret (Tasmania)
Encyclopedia
Lake Margaret is the name of a lake
high up on the north side of Mount Sedgwick,in the West Coast Range, West Coast
of Tasmania
in Australia
.
anchors and grouting
of open joints.
that was based in Queenstown
. In the 1990's the HEC
took over the operations.
The two southern feeder Hydro reserves start from the slopes of Mount Sedgwick- the westerly from Lake Barnables (less than 1 kilometre east of Lake Margaret, then to Lake Phillip. The eastern feeder starts at an 'Un-named lake', to 'Lake Polycarp', 'Lake Peter', 'Lake Paul', 'Lake Apolllos' and then to Lake Phillip.
The northern feeder starts from Lake Monica, Lake Myra, then Lake Magdala (782 metres), Lake Martha (757 metres), and lastly Lake Mary (732 metres), before flowing into Lake Margaret ( 660 metres)
The larger lower altitude natural lake of the area lies to the south east side of Mount Sedgwick and is known as Lake Beatrice
.
Lake
A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...
high up on the north side of Mount Sedgwick,in the West Coast Range, West Coast
West Coast, Tasmania
The West Coast of Tasmania is the part of the state that is strongly associated with wilderness, mining and tourism, rough country and isolation...
of Tasmania
Tasmania
Tasmania is an Australian island and state. It is south of the continent, separated by Bass Strait. The state includes the island of Tasmania—the 26th largest island in the world—and the surrounding islands. The state has a population of 507,626 , of whom almost half reside in the greater Hobart...
in Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
.
Dam
The dam was completed in 1918. It was the first gravity dam constructed in Tasmania and was built of concrete with conglomerate "plums". The dam was 17 metres high, had a length of 243 metres, and the wall has a volume of 6,000 cubic metres. In 1974 it was strengthened by the use of prestressedPrestressed concrete
Prestressed concrete is a method for overcoming concrete's natural weakness in tension. It can be used to produce beams, floors or bridges with a longer span than is practical with ordinary reinforced concrete...
anchors and grouting
Grout
Grout is a construction material used to embed rebars in masonry walls, connect sections of pre-cast concrete, fill voids, and seal joints . Grout is generally composed of a mixture of water, cement, sand, often color tint, and sometimes fine gravel...
of open joints.
Power scheme
A hydroelectric Lake Margaret Power Station and a townsite with the same name have been constructed. The purpose was to power the nearby mine and community surrounding the Mount Lyell Mining and Railway CompanyMount Lyell Mining and Railway Company
Mount Lyell Mining and Railway Company was a Tasmanian mining company formed on the 29 March 1893, most commonly referred to as Mount Lyell. Mount Lyell was the dominant copper mining company of the West Coast from 1893 to 1994, and was based in Queenstown, Tasmania.Following consolidation of...
that was based in Queenstown
Queenstown, Tasmania
Queenstown is a town in the West Coast region of the island of Tasmania. It is located in a valley on western slopes of Mount Owen on the West Coast Range.It had a population of 5,119 people . At the 2006 census, Queenstown had a population of 2,117....
. In the 1990's the HEC
Hydro Tasmania
Hydro Tasmania, known for most of its history as The HEC, is the government owned enterprise which is the predominant electricity generator in the state of Tasmania, Australia...
took over the operations.
Catchment area
Numerous smaller lakes - some named and some not, lie above the location of the lake. The vesting of the catchment with the current operator of the hydro electric power station, makes the two feeder parts of the catchment specific Hydro land in contrast to the surrounding landscape which is either in the Tyndall Regional Reserve or the Lake Beatrice Conservation AreaThe two southern feeder Hydro reserves start from the slopes of Mount Sedgwick- the westerly from Lake Barnables (less than 1 kilometre east of Lake Margaret, then to Lake Phillip. The eastern feeder starts at an 'Un-named lake', to 'Lake Polycarp', 'Lake Peter', 'Lake Paul', 'Lake Apolllos' and then to Lake Phillip.
The northern feeder starts from Lake Monica, Lake Myra, then Lake Magdala (782 metres), Lake Martha (757 metres), and lastly Lake Mary (732 metres), before flowing into Lake Margaret ( 660 metres)
The larger lower altitude natural lake of the area lies to the south east side of Mount Sedgwick and is known as Lake Beatrice
Lake Beatrice
Lake Beatrice is a lake on the lower eastern side of Mount Sedgwick in the West Coast Range of Western Tasmania. Being higher in altitude, is not visible from the level that Lake Burbury is at, but can be seen either from the air, or the higher slopes of the eastern part of Mount LyellThe name of...
.