Interstate 129

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Interstate 129 (abbreviated I-129) is a spur highway that connects Interstate 29 in Sioux City, Iowa to South Sioux City and Dakota City in Nebraska. The full length of the highway is 3.48 miles (3.21 in Nebraska, 0.27 in Iowa); completed in 1976. It is multiplexed with U.S. Route 75 and U.S. Route 20 its entire length.

Auxiliary routes of Interstate 29
Current and Future (F) Former
I-129 Iowa-Nebraska
I-229 Missouri - South Dakota
Browse numbered routes
< NE 128 NE NE 133 >


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