The Edgar Dam was one of the component dams in the flooding of Lake Pedder

Lake Pedder

Lake Pedder was once a natural lake, located in the southwest of Tasmania, Australia but the name is now used in an official sense to refer to the much larger artificial impoundment and diversion lake formed when the original lake was expanded by damming in 1972 by the Hydro Electric Commission of...

 in South West Tasmania

South West Tasmania

South West Tasmania is a region in Tasmania that has evolved over the fifty years between its consideration as a potential resource for development to its consideration as World Heritage wilderness...

, 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...

. It was named after Lake Edgar. The dam was constructed by Hydro Tasmania

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...

 as part of the Gordon River Power Development Scheme.

This non-hydroelectric dam, along with Scotts Peak Dam

Scotts Peak Dam

The Scotts Peak Dam was one of the three component dams in the flooding of the original Lake Pedder in South West Tasmania, Australia. Completed in 1973, the dam is high, long, spanning across the upper reaches of the Huon River....

 and the Serpentine Dam

Serpentine Dam, Tasmania

The Serpentine Dam was one of the component dams involved in the flooding of Lake Pedder in South West Tasmania, it is located on the Serpentine River, Tasmania. The dam is a high rockfill dam....

, helps retain water in the new impoundment also called - Lake Pedder, which then flows to Lake Gordon

Lake Gordon

Lake Gordon is a reservoir created by the Gordon Dam on the upper reaches of the Gordon River in south-west Tasmania, Australia. The reservoir was formed in the early 1970s as a result of the dam construction by the HEC...

 via the McPartlans Pass Canal at 42°50′51"S 146°11′45"E. Water from Lake Gordon then exits through the Gordon Dam

Gordon Dam

The Gordon Dam , is a double curvature arch dam on the Gordon River in Tasmania, Australia. The dam has a length of , and a height of , making it the tallest dam in Tasmania and the fifth-tallest in Australia....

.