Iowa DOT News Release

Ramp from westbound U.S. 20 to northbound I-29 in Sioux City to close Monday, July 11

Posted on: July 06, 2022

SIOUX CITY, Iowa – July 6, 2022 – A bridge repair project at the Interstate 29/129/U.S. 20 interchange in Sioux City requires closing the ramp from westbound U.S. 20 to northbound I-29 at 7 a.m. Monday, July 11, until Thursday, Sept. 1, weather permitting, according to the Iowa Department of Transportation’s District 3 Office. 

During this project, westbound U.S. 20 to northbound I-29 traffic will be detoured onto southbound I-29, to Singing Hills Boulevard, and onto to northbound I-29 (see map).

The Iowa DOT reminds motorists to drive with caution, obey the posted speed limit and other signs in the work area, and be aware that traffic fines for moving violations are at least double in work zones. As in all work zones, drivers should stay alert, allow ample space between vehicles, and wear seat belts.

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Contact: Dakin Schultz at 712-274-5837 or

Iowa highway in the evening