Interstate 80, western Iowa. (Photo credit: Wikipedia) |
Three of the auxiliary highways in Iowa are connected to Interstate 80. Having its beginning in Illinois, Interstate 280 forms the western and southern interstate routes around the Quad Cities. It leaves I-80 at Exit 290 and travels south and then east across the Mississippi River into Illinois where it ends at I-80 outside Colona. Interstate 380 begins near Waterloo and travels south for 73 miles until ending at I-80 near Iowa City. Two highways have their beginnings in Iowa, but end in Nebraska. Interstate 480 is less than five miles long and leaves I-80 in Omaha, crosses the Missouri River into Iowa and ends at I-29 in Council Bluffs. North of that is Interstate 680 which forms an alternate route around Omaha to the west and north. Exit 446 is the departure point from I-80 in Nebraska and Exit 61 on I-29 in Iowa is where the 43 miles of this highway end. The last is Interstate 235 which provides a route through Des Moines of 14 miles. Exit 123 on I-35 is the beginning of this run and Exit 138 on I-80 is the end.
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