I-84 Centennial Way to Franklin Road

Crews will shift traffic onto the new westbound I-84 lanes between the Centennial Way and Franklin Road interchanges on Saturday, Oct. 31!

This shift will allow crews to build the new loop on-ramp and connections to I-84 and remove the current on-ramp.

To complete the traffic shift, multiple westbound ramps will close overnight on Saturday, Oct. 31. Here’s what to expect:

Beginning Wednesday, Oct. 28:

• The right lane on westbound I-84 must exit at 10th Avenue throughout the week. Please stay in the left lane to continue on westbound I-84.

Saturday, Oct. 31:

• The 10th Avenue westbound on-ramp will close.
• The Franklin Road westbound on-ramp will close.
• Lane closures will be in place on westbound I-84.
• Ramps and lanes will close from 10 p.m. to 7 a.m.
• Motorists will detour to Centennial Way. View the detour map.

Thank you for your patience as crews bring the project closer to completion!

A special guest joins this month’s I-84 Corridor update!

Caldwell’s Mayor Eric Phillips joins Matt Kreizenbeck and Styles Salek in the September I-84 Corridor Monthly Update.

Watch the video to get the latest on:

• Construction between the Centennial Way and Franklin Road interchanges.
• Upcoming closures on 10th Avenue.
• ITD’s plans for the US 20-26 Notus/Parma exit in Caldwell.

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

• View the latest email update.
• 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.

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.

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.

Other projects in the area

Click the map to find more information about nearby construction projects, or contact your local agency below:

• Idaho Transportation Department
  • SH-55: Farmway to Middleton | (208) 377-9688
• City of Caldwell:
  • Kimball Bridge at Indian Creek | (208) 377-9688
• City of Nampa:
  • Flamingo Road Closure | (208) 465-2221