1961
Inflow: 3,01,052 cusecs
Discharge: 2,84,606 cusecs
2005
Inflow: 2,41,300 cusecs
Discharge: 2,31,802 cusecs
2022
Inflow expected: 2,00,000 cusecs
Discharge expected: 2,10,000 to 2,30,000 cusecs
2018
Inflow: 1,95,000 cusecs
Discharge: 2,05,000 cusecs
2013
Inflow: 1,63,072 cusecs
Discharge: 1,22,617 cusecs
1924 before the construction of Dam, the flow was 4,56,000 cusecs. Remains the highest till date.
2019 the highest inflow was 2,30,000 cusecs and discharge was made before the dam reached 120 it.
2020 the highest inflow was 1,30,000 cusecs and discharge was made before the dam reached 120 it.
Highest Inflow in TMC into Mettur in a Month exceeding its own 93.47 tmc from 1974
(min 100 tmc in a month)
2018 August – 168.50
1980 July – 167.90
1981 August – 145.65
1979 August – 135.83
1975 August – 127.41
1978 August – 123.88
2018 July – 117.08
1994 July – 111.03
2005 October – 105.75
1992 August – 105.43
1974 August – 104.14
Highest Inflow in TMC into Mettur in a South West Monsoon (June to September) from 1974
(min 180 tmc in Jun-Sep)
2018 – 327.18
1980 – 305.24
1975 – 292.36
1981 – 290.39
1978 – 271.82
2007 – 236.32
1994 – 226.13
1992 – 224.76
1979 – 223.12
1974 – 198.38
1991 – 198.13
2013 – 186.01
1984 – 182.20
2005 – 180.51
Highest Inflow in TMC into Mettur in a North East Monsoon (October to December) from 1974
(min 90 tmc in Oct-Dec)
2005 – 192.90
2000 – 158.92
1973 – 143.57
1999 – 141.33
1994 – 122.24
1996 – 115.41
1991 – 114.10
2010 – 108.26
1975 – 107.28
1997 – 101.87
1992 – 99.73
1998 – 91.29
Highest Inflow in TMC into Mettur between June to December from 1974
(min 250 tmc in Jun-Dec)
1975 – 399.64
1981 – 377.68
2005 – 373.41
2018 – 370.51
1980 – 367.14
1994 – 348.47
1978 – 346.39
2007 – 321.00
1992 – 324.49
1991 – 313.11
1979 – 297.97
2000 – 277.93
1977 – 277.24
1984 – 263.25
2019 – 255.87
1974 – 252.82