Table 1: Historical trend of dams in Italy

Main purpose Total Up to 1990 1900-1930 1931-1945 1946-1970 1971-1995
Hydroelectric 328 1 106 54 149 18
Irrigation 141 1 2 6 95 37
Flood control 72 4 5 4 44 15
Multipurpose (drinking water & industrial & others) 5 0 1 3 1 0
TOTAL 546 6 114 67 289 70