Iowa DOT News Release

Ramp from westbound U.S. 20 to north and southbound I-29 in Sioux City to close Thursday, Aug. 12

Posted on: August 11, 2021

SIOUX CITY, Iowa – Aug. 11, 2021 – The placement of a tower light at the Interstate 29/U.S. 20 interchange in Sioux City requires closing the ramp from westbound U.S. 20 to north- and southbound I-29 from 8 p.m. to midnight Thursday, Aug. 12, weather permitting, according to the Iowa Department of Transportation’s District 3 Office. 

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.

The latest traveler information is available anytime through our 511 system. Visit; call 511 (within Iowa) or 800-288-1047 (nationwide); stay connected with 511 on Facebook or Twitter (find links at; or download the free app to your mobile device.

It’s easy to subscribe to Your 511 and sign up to receive the email/text alerts. Visit to sign up. For instructions and help for this feature, visit


Contact: Dakin Schultz at 712-274-5837 or

Iowa highway in the evening