I-80/I-380 construction

Current traffic impacts

It is anticipated that overnight closures will occur throughout the project. Detours will be posted, and notices provided, on 511ia.org. Emergency closures have occurred in the project area due to quick-forming pavement potholes and pavement settlement issues. Active emergency closures are posted to the 511ia.org. Please follow 511ia.org for the most current construction information and notifications.

Project update

Speed limit changes

Sections throughout the interchange have reduced speed limits to support the ongoing construction efforts in this area. View a map which illustrates the speed limits throughout the project area.

Traffic impacts and potential delays

For the best source and latest updates for traffic alerts and notifications, follow 511ia.org. Construction activities will have a greater impact on traffic in 2021 as all quadrants of the interchange will have active construction. 2021 will bring even more construction activity throughout the Systems Interchange with significant travel impacts. As the final 3.5 years of the construction project begin, lane shifts and reductions will result in travel feeling tighter and more cramped throughout the system. In addition, major long-term closures are scheduled to begin. Drivers should begin to expect longer travel times and potential detours as they travel through the interchange. Major closures anticipated in 2021 include:

  • I-80 westbound to U.S. 218 southbound loop permanent closure anticipated Fall 2021. The new ramp is anticipated to open Fall/Winter 2023.
  • Existing I-80 westbound to U.S. 218 southbound ramp closed permanently September 27, 2021. The new ramp is anticipated to open Fall/Winter 2023.
  • Existing U.S. 218 northbound to I-80 westbound ramp closed permanently in December 2020. The new ramp is anticipated to open Fall/Winter 2023.
  • U.S 218 northbound/southbound traffic, south of I-80, will be shifting to head-to-head traffic for approximately 1.5 miles in August 2021. This shift is anticipated to be in place until late fall 2021.


380 Express Bus between Cedar Rapids and Iowa City is available for travelers in the area. Buses run regularly Monday through Friday. Buses are ADA compliant and feature free Wi-Fi. For rate and schedule details, visit 380express.com

Each motor coach is cleaned and sanitized daily. Riders are asked to limit trips for essential purposes only.

2020 Annual Report Now Available

To learn more about the construction activities from 2020, download the 2020 Annual Report.


What's going on now

Interested in seeing what is happening on the I-80/380 interchange in real time?

I-380 web cam: Looking NE at I-380

I-380 WEB CAM ON NORTH SIDE OF US 6 (Alternating views north and south.)

I-80 WEB CAM NEAR I-380 (Alternating views east, north, west.)

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