SIOUX CITY, Iowa – Aug. 6, 2025 – If you drive on U.S. 71 near Storm Lake you need to be aware of an upcoming construction project that may slow down your trip, according to the Iowa Department of Transportation’s (DOT) District 3 office in Sioux City.  Beginning on Monday, Aug. 18, weather permitting, crews will close U.S. 71 at the CN rail crossing for a combined Iowa DOT/CN railroad project. The anticipated project completion date is Saturday Aug. 23, 2025.

When the roadway is closed, you will follow a marked detour route using Iowa 7/Business U.S. 71, 120th Avenue/Radio Road, and 600th Street/Milwaukee Avenue.

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.