Construction at Exit 211 on I-84 in Heyburn has begun

Drone shot of the Heyburn Interchange on I-84 before construction

Construction to upgrade the Heyburn Interchange (Exit 211) is scheduled to begin Monday (March 11), adding another work zone on Interstate 84 as work began at the nearby Burley Interchange (Exit 208) in late February. Both multi-year projects include replacing the interchanges, with funding coming from Governor Little’s Leading Idaho program.

The interchanges were built in the 1960s. Feedback from open houses held in 2022 and 2023 led to the selection of new designs that are safer and capable of handling more traffic.

On Monday, crews will mobilize into the area and begin setting up the work zone. Nighttime lane closure are not anticipated until early April when they place barrier and start removing vegetation in the median.

Upgrading the interchange will take until late 2026 and is expected to cost $90.1 million. Drivers can generally expect:

  • All lanes on I-84 will be open during the day. Drivers will be shifted many times to run on temporary pavement to keep traffic flowing.
  • Nighttime lane closures on I-84 as needed.
  • Nighttime ramp closures as needed.
  • Lane closures and traffic shifts on State Highway 24 where it crosses underneath the interstate.

The new interchange will be shifted to the east and feature longer ramps to access I-84 and two new signals to control ramp traffic. The existing loop ramps will be removed, and the I-84 bridges will be replaced. View the detailed design here. Download a drone shot of the interchange before construction.

This year, the contractor will work on building temporary lanes in the median to shift traffic onto, start reconstructing westbound lanes with concrete and form embankments for future ramps.

Nighttime lane closures initially anticipated at the Burley Interchange in late February have been delayed by weather. To be alerted when those lane closures begin, visit the project website to sign up for email updates. Live traffic impacts can always be checked at

The Leading Idaho program allows ITD to accelerate project timelines to address rapid growth and build critical infrastructure today that would otherwise take many years to fund and build.