1970 Event KDUB TV channel 40 in Dubuque, IA (ABC) begins broadcasting 1970 Event KIIN (now KUN) TV channel 12 in Iowa City, IA (PBS) 1st broadcast 1967 Event KMEG TV channel 14 in Sioux City, IA (CBS) begins broadcasting 1959 Event KDIN TV channel 11 in Des Moines, IA (PBS) begins broadcasting 1958 Event 1st welded aluminum girder highway bridge completed, Urbandale, Ia 1955 Event KTVO TV channel 3 in Ottumwa-Kirksville, IA (ABC) begins broadcasting 1955 Event KRNT (now KCCI) TV channel 8 in Des Moines, IA (CBS) 1st broadcast 1954 Event KTIV TV channel 4 in Sioux City, IA (NBC) begins broadcasting 1954 Event KGLO (now KIMT) TV channel 3 in Mason City, IA (CBS) 1st broadcast 1954 Event WHO TV channel 13 in Des Moines, IA (NBC) begins broadcasting 1953 Event KVFD (now KTIN) TV channel 21 in Ft. Dodge, IA (NBC) 1st broadcast 1953 Event WMT (now KGAN) TV channel 2 in Cedar Rapids-Waterloo, IA (CBS) begins 1953 Event KCAU TV channel 9 in Sioux City, IA (ABC) begins broadcasting 1950 Event WOI TV channel 5 in Ames-Des Moines, IA (ABC/PBS) begins broadcasting 1950 Event Mental health wing of Mercy Hospital burns, kills 41 (Davenport Ia) 1949 Event WOC (now KWQC) TV channel 6 in Davenport, IA (NBC) 1st broadcast 1928 Event WMT-AM in Cedar Rapids IA begins radio transmissions 1925 Event KMA-AM in Shenandoah IA begins radio transmissions