 Interstate 680 ( abbreviated I @-@ 680 ) in Nebraska and Iowa is the northern bypass of the Omaha – Council Bluffs metropolitan area . I @-@ 680 spans 42 @.@ 86 miles ( 68 @.@ 98 km ) from its southern ( counterclockwise ) end in western Omaha to its eastern ( clockwise ) end near Neola , Iowa . For a 10 @-@ mile ( 16 km ) stretch , I @-@ 680 is co @-@ signed with I @-@ 29 . The freeway passes through a diverse range of scenes and terrains – the urban setting of Omaha , the Missouri River and its valley , the rugged Loess Hills , and the farmland of Pottawattamie County , Iowa . 
