Myponga Reservoir

Myponga Reservoir
Myponga Reservoir
Location South Australia
Coordinates 35°23′42″S 138°26′31″E / 35.395°S 138.442°E / -35.395; 138.442Coordinates: 35°23′42″S 138°26′31″E / 35.395°S 138.442°E / -35.395; 138.442
Lake type reservoir
Catchment area Myponga River
Basin countries Australia
Surface area 2.8 km²
Water volume 26,800 megalitres (maximum capacity)

The Myponga Reservoir is a reservoir in South Australia, located about 60 km south of Adelaide near the town of Myponga. The reservoir is fed by the Myponga River and other rivers in the Myponga catchment. It provides about 5% of the City of Adelaide's water supply[1] and is the main source of filtered water for southern metropolitan Adelaide and the southern coast area. Plans to utilise the Myponga River catchment as a major storage area were made in 1945. Construction began in 1957 and was completed in 1962, flooding what was from 1840 known as "Lovely Valley".[2] Prior to the construction of the Myponga Water Treatment Plant in 1993, water from Myponga was used to supplement that of Happy Valley Reservoir.[3]

The reservoir was searched for the bodies of the Beaumont children, Joanne Ratcliffe, and Kirsty Gordon in early 1990, based on evidence against Bevan Spencer von Einem delivered by "Mr. B", a witness. No remains were found there.[4]

  • Capacity: 26,800 megalitres
  • Length of wall: 226m
  • Height of wall: 49m
  • Type of wall: Concrete arch
  • Area of water spread: 2.8 km²
Myponga Reservoir seen from Reservoir Road

See also


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