Silvan Reservoir

Silvan Reservoir is the heart of the transfer system, supplying most parts of Melbourne’s metropolitan area. Silvan also stores water from the Upper Yarra system for transfer to Cardinia. The dam was completed in 1932 and is an earthfill embankment with reinforced concrete core wall.

Rainfall figures for Silvan Reservoir

Storage and rainfall data

Use our interactive web application to view current storage levels and catchment rainfall for Silvan Reservoir:

Key rainfall facts (mm)

​Month Wettest​ ​Driest ​Average
January​ 221.2 (1963)​ 3.8 (1990)​ 63.4
February​ 258.8 (1939)​ 0.0 (1956)​ 66.1
March​ 244.3 (1931)​ 2.3 (1951)​ 66.8​
April​ 330.2 (1935)​ 0.0 (1923)​ 99.1
May​ 327.7 (1944)​ 8.4 (1934)​ 115.2
June​ 259.8 (1952)​ 21.1 (1972)​ 108.8
July​ 299.5 (1952)​ 32.0 (2001)​ 115.3
August​ 302.5 (1939)​ 30.8 (1982)​ 122.8
September​ 302.5 (1957)​ 31.5 (1961)​ 115.4​
October​ 277.6 (1934)​ ​24.1 (1938) 117.3
November​ 223.8 (1954)​ 10.7 (1927​ 101.4
December​ 318.8 (1934)​ 4.6 (1972)​ 90.5
Total rainfall​ 1786.9 (1952)​ 724.3 (1997)​ 1182.0
 

Historical rainfall data (1921-2016)

 

Location of Silvan Reservoir

Key facts

  • Catchment area:
    900 hectares (off stream storage)
  • Surface area:
    333 hectares
  • Total capacity:
    40,445 megalitres
  • Dam height:
    40 metres
  • Dam length:
    650 metres

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