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