The Interstate 84 / U.S. 89 interchange is a critical connection for northern Utah, moving people and goods through the region while supporting the everyday commutes that bring people home. Through the Progressive Design-Build process, UDOT is advancing a comprehensive, long-term solution that will improve daily travel while responding to the unique needs of this area. The new I-84/US-89 interchange concept has refined the preferred alternative identified in the Environmental Assessment to deliver a solution that serves the traveling public for many years, reduces costs, and can be built efficiently without long-term phasing.

Improvements include:

· System-to-system interchange between US-89 and I-84 – this means direct connections and less traffic signals

· Frontage roads and a new underpass at 6600 South - improving local connectivity on both sides of U.S. 89

· New railroad bridges and tracks

· An additional U.S.89 climbing lane southbound between South Weber Drive and State Route 193

· New bridges over the Weber River on U.S. 89 and I-84

· A new shared-use path between the Weber River and the existing shared-use underpass near Skyline Drive.

A rendering of the preliminary concept is shown below. The project team is continuing to refine the design based on technical analysis and stakeholder feedback.

Since this concept differs from the preferred alternative identified in the Environmental Assessment, UDOT will undertake a Supplemental Environmental Assessment in 2026-2027. Sign up for email updates to be notified when a Public Hearing is scheduled.