 In Nebraska , plans for Interstate 280 to bypass Omaha to the north to I @-@ 29 were drawn up in the late 1950s . At the same time , plans were being drawn up for an Interstate 280 to bypass the Quad Cities . Since two interstates cannot have the same designation in the same state , one of the I @-@ 280s had to be renumbered . The Omaha I @-@ 280 was re @-@ designated as I @-@ 680 around 1965 . In Iowa , Interstate 80N opened to traffic on December 13 , 1966 . I @-@ 80N extended from the current northern interchange with I @-@ 29 near Loveland to the I @-@ 80 interchange near Neola . 
