Interstate 129

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Interstate 129

Interstate 129 overlays 3.5 miles of U.S. 20 from just west of the Lake Avenue underpass outside South Sioux City, Nebraska to the directional cloverleaf interchange joining U.S. 20/75 with I-29 in Sioux City, Iowa. U.S. 20 extends west from I-129 along an expressway another 2.5 miles beyond Crystal Lake. U.S. 20/75 encircle the eastern side of Sioux City along a freeway bypass east to Gordon Drive (U.S. 20 Business) and north to Floyd Boulevard (U.S. 75 Business). I-129/U.S. 20-75 span the Missouri River across the Sergeant Floyd Memorial Bridge. The 2,607 foot long bridge was built in 1976.1

Interstate 129 Sioux City Guides

I-129/U.S. 20-75 - East - 19 photos

I-129/U.S. 20-75 - West - 15 photos

References:

  1. I 129 over MISSOURI RIVER & I-29, Woodbury County, Iowa. http://bridgereports.com/1129645 BridgeReports.com

Connect with:

U.S. 75U.S. 75

Page Updated Wednesday February 12, 2020.