Lake Pedder

Lake Pedder
Lake Pedder
	Lake Pedder, c. 1970
	Lake Pedder
	Map showing Lake Pedder in Tasmania
Location	South West Tasmania
Coordinates	42°56′S 146°08′E / 42.933°S 146.133°E
Type	Until 1972: Natural, glacial outwash lake;; Since 1972: Reservoir, artificial impoundment, diversion pond;
Etymology	Sir John Pedder
Part of	Upper Gordon River hydroelectric generation scheme
Primary inflows	Frankland Range
River sources	Serpentine River; Huon River;
Primary outflows	Serpentine River; Huon River;
Catchment area	734 km2 (283 sq mi)
Basin countries	Australia
Construction engineer	Hydro Tasmania
First flooded	1972
Surface area	242 km2 (93 sq mi)
Average depth	13–16 m (43–52 ft) (as a reservoir)
Max. depth	+3 m (9.8 ft) (as a glacial lake);; 43 m (141 ft) (as a reservoir);
Water volume	2.9 km3 (0.70 cu mi)
Surface elevation	300 m (980 ft)
Islands	2 (as a glacial lake);; 45 (as a reservoir);
References

Lake Pedder, once a glacial outwash lake, is a man-made impoundment and diversion lake located in South West Tasmania, Australia. In addition to its natural catchment from the Frankland Range, the lake is formed by the 1972 damming of the Serpentine and Huon rivers by the Hydro-Electric Commission for the purpose of hydroelectric power generation. Consequently, the lake is also known, somewhat derisively, as the Huon-Serpentine Impoundment.

As a result, the flooded Lake Pedder now has a surface area of approximately 242 square kilometres (93 sq mi), making it Tasmania's second largest lake.