Iowa DOT Plans Nighttime Construction on I-29 Near Sioux City

Work between Sergeant Bluff and South Dakota border set to continue through April 20

Mar. 30, 2026 at 10:53pm

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A blurred, abstract image of cars and trucks moving at high speed on a nighttime highway, with streaks of colorful lights creating a sense of motion and energy.Nighttime construction on I-29 near Sioux City will require drivers to navigate lane closures and potential delays over the next few weeks.Sioux City Today

The Iowa Department of Transportation is planning construction work on Interstate 29 that could disrupt nighttime traffic in the Sioux City metro over the next few weeks. Patching work will begin on the night of Monday, March 30, on I-29 between Sergeant Bluff and the South Dakota border, with the work being done in both the north and southbound lanes. The DOT plans to do the work in the overnight hours between 7 p.m. and 6 a.m., with traffic expected to be reduced to one or two lanes in both directions during that time. The work is set to continue through April 20.

Why it matters

This construction project on a major interstate highway in the Sioux City area will impact nighttime commuters and travelers, potentially causing delays and disruptions to traffic flow. Maintaining infrastructure on I-29 is crucial for the region's transportation network and economic activity.

The details

The Iowa DOT Sioux City District Office has announced that patching work will be performed on I-29 between Sergeant Bluff and the South Dakota border. The work will be done in both the northbound and southbound lanes, with traffic reduced to one or two lanes in each direction during the overnight hours between 7 p.m. and 6 a.m. This construction is expected to continue through April 20.

  • The work will begin on the night of Monday, March 30, 2026.
  • The construction is set to continue through April 20, 2026.

The players

Iowa Department of Transportation

The state agency responsible for maintaining and improving Iowa's transportation infrastructure, including interstate highways like I-29.

Sioux City District Office

The local office of the Iowa DOT that oversees transportation projects in the Sioux City metropolitan area.

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The takeaway

This nighttime construction project on I-29 near Sioux City will require drivers to be aware of lane closures and potential delays, especially for those commuting or traveling through the area during the overnight hours. The Iowa DOT is working to maintain and improve this critical transportation corridor for the region.