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Australia's largest spillways – in order of decreasing capacity (All spillways 10,000m3 per second or more discharge capacity

Source: Register of Large Dams in Australia, 2002

NAME Discharge capacity (m3/sec) Spillway type Year completed State
1 Burdekin falls 64600 Uncontrolled 1987 QLD
2 Burrinjuck 29100 Un/controlled 1928 NSW
3 Kununurra diversion 28300 Controlled 1963 WA
4 Fitzroy river barrage 23800 Controlled 1970 QLD
5 Harding 21500 Uncontrolled 1985 WA
6 Pindari 20650 Uncontrolled 1969 NSW
7 Warragamba 20300 Controlled 1960 NSW
8 Tallowa 20200 Uncontrolled 1976 NSW
9 Fairbairn 15580 Uncontrolled 1972 QLD
10 Copeton 14800 Controlled 1976 NSW
11 Wyangla 14700 Controlled 1971 NSW
12 Julius 14500 Uncontrolled 1976 QLD
13 Burrendong 13720 Controlled 1967 NSW
14 Boondooma 13420 Uncontrolled 1983 QLD
15 Opthalmia 13000 Uncontrolled 1982 WA
16 Wivenhoe 12000 Controlled 1985 QLD
17 Glenbawn 11115 Uncontrolled 1958 NSW
18 Keepit 10480 Controlled 1960 NSW