Projects

I-84 Centennial Way to Franklin Road

Construction began November 2023. Work will be complete in 2027.

I-84 Centennial Way to Franklin Road

Construction began November 2023. Work will be complete in 2027.

Overview

ITD is constructing improvements to I-84 between the Centennial Way and Franklin Road interchanges in Caldwell.

    • Widening I-84 to three lanes in each direction with auxiliary lanes between interchanges.

    • Replacing the 10th Avenue Interchange.

    • Removing one westbound on-ramp at the 10th Avenue Interchange.

    • Updating the pedestrian overpass.

    • Building a soundwall along Hannibal Street.

    • Adding a traffic signal at the westbound ramps at the Centennial Way Interchange.

I-84 Centennial Way to Franklin Road project area which includes a major highway being intersected by local roads surrounded by houses.
Graphic saying Centennial Way to Franklin Road.
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Watch the June 2026 I-84 Corridor Monthly Update Now!

Good news! The 10th Avenue eastbound on-ramp opens June 25, ahead of schedule!

Crews worked hard to open the ramp in just 80 days. Watch the latest I-84 Corridor monthly update to learn about:

  • What crews completed during the closure.
  • Upcoming closures on 10th Avenue and the Centennial Way on-ramp.
  • Ongoing improvements at the Karcher Interchange.

I-84 Centennial Way eastbound on-ramp to close for 60 days

Starting June 25, the Centennial Way eastbound on-ramp will close for 60 days for crews to rebuild the ramp and connect to the new lanes on I-84.

Here’s what to expect:

  • The Centennial Way eastbound on-ramp will close Thursday night, June 25, at 10 p.m.
  • The ramp will remain closed for 60 days.
  • Motorists will detour to the 10th Avenue eastbound on-ramp. View a detour map.

This will be the last extended ramp closure until the end of construction.

Good news! After the Centennial Way ramp closes, crews will reopen the 10th Avenue eastbound off-ramp after rebuilding the ramp in just 80 days.

I-84, Centennial Way Interchange facing west.

Current traffic impacts

Here is what motorists can expect right now. This section is updated as conditions change.

  • View the latest email update.
  • 10th Avenue eastbound off-ramp and on-ramp closed until July 2026.
  • 10th Avenue is restricted to one lane in each direction between the interchange ramps.
  • Please plan for nightly lane closures over the next several months as crews widen I-84 in Caldwell.
  • 10th Avenue westbound loop ramp is closed until summer 2027. View the detour map.
  • Frontage Road: one-way traffic until 2027.
  • Wide loads are restricted on ramps. Check Idaho 511 for current width restrictions.
Photo of 10th Avenue Bridge demolition.

What to expect during construction

Construction will happen in stages. Below are impacts you will see throughout the project.

  • All lanes of l-84 will be open in both directions during the day.
  • 10th Avenue westbound loop ramp will be closed until summer 2027. View the detour map.
  • Overnight closures and lane restrictions will be necessary on I-84.
  • Extended ramp closures at the Centennial Way and 10th Avenue interchanges (Exits 27 and 28) will occur.
  • One-way traffic on Hannibal Street and Frontage Road until 2027.
  • Access to local businesses will be open, but your route may change.

What will Centennial Way to Franklin Road look like once completed?

3D rendering of what the project area will look like once completed in 2027

TECM funding

This project is being funded with Transportation Expansion and Congestion Mitigation (TECM) funds as part of Governor Little’s Leading Idaho initiative. The 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.

The I-84 corridor is one of 13 approved TECM corridors in the state. Funding for the construction phases on this corridor will be determined based on project readiness and funding availability.

Blue and white circular logo that says Gov. Brad Little Leading Idaho project
Map of I-84, Centennial to Franklin project area and other nearby projects.
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Other projects in the area

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Contact the project team

If you have questions or comments about this project, contact the project team at 84corridor@itd.idaho.gov or 208-334-8002. You can also text 84CORRIDOR to 1-866-483-8422.

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