Sioux City, Iowa – March 24, 2026 – Nighttime patching work on Interstate 29 northbound and southbound from Sergeant Bluff to the South Dakota border will require lane closures starting Monday, March 30 through Monday, April 20, according to the Iowa Department of Transportation’s Sioux City District Office.
I-29 in both directions will be reduced to one or two lanes while patching operations are happening along the corridor with intermittent closures in place each night from 7:00 p.m. to 6:00 a.m.
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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For general information about this closure, please contact Sarah Tracy, District 3 transportation planner, at 712-274-5831 or sarah.tracy@iowadot.us.