Projects

I-84, SH-44 to Centennial Way

This study will evaluate future needs and potential improvements on Interstate 84 between State Highway 44 (Exit 25) and Centennial Way (Exit 27) interchanges.

I-84, SH-44 to Centennial Way

This study will evaluate future needs and potential improvements on Interstate 84 between State Highway 44 (Exit 25) and Centennial Way (Exit 27) interchanges.

Overview

This study will evaluate future needs and potential improvements on Interstate 84 between State Highway 44 (Exit 25) and Centennial Way (Exit 27) interchanges. This project is part of ITD’s ongoing efforts to improve I-84 in Canyon County.

Project logo

Thank you, Canyon County!

We appreciate the fantastic turnout for our recent public meeting regarding the I-84, SH-44 to Centennial Way project. Over 300 of you took time to learn about and share feedback on the future of the I-84 corridor. For those who missed the meeting, you can still view the updated plans for the SH-44 Interchange and the I-84, SH-44 to Centennial Way environmental study by clicking the link below.
Click here to view the online open house.

    Watch the latest I-84 Corridor Monthly Update!

    What this study includes

    This study began in 2023.  It includes:

    • Completing a traffic and safety study
    • Completing an environmental evaluation
    • Meeting with stakeholders and gathering input
    • Prioritizing needed improvements
    image of I-84 looking south toward US-20/26

    Improvements being considered

    drone image of SH-44 interchange

    This study will look at several improvements including:

    • Widening I-84 and replacing irrigation structures.
    • Replacing the US-20/26 Interchange.
    • Replacing two ramps at the Centennial Way Interchange.
    • Replacing and widening the Boise River Bridge near Centennial Way.
    • Replacing the SH-44 Interchange.

    Next steps

    ITD will receive environmental approval for the I-84, SH-44 to Centennial Way project in 2026.  Right now, there is no funding to design or build the planned widening of I-84 between SH-44 and Centennial Way.

    However, ITD does have funding to design improvements for the SH-44 Interchange.  Design started in 2025 and is expected to be complete in 2026.

    To see the latest SH-44 Interchange proposed improvements click here.

    Image of SH-44, I-84 on-ramp heading south.

    Community involvement

    image of 2024 public meeting

    ITD hosted a public open house in January 2024. Click here to watch a video to find out what we heard from you about the suggested improvements.

    ITD hosted a public open house in February 2026. To see the updated SH-44 Interchange plans and the I-84, SH-44 to Centennial Way environmental study click here.

    Timeline

    • 2023

      Began an environmental evaluation for I-84 between SH-44 and Centennial Way.

    • 2024

      Hosted a public meeting and proceeded with environmental evaluation.

       

    • 2025

      Began design plans for the SH-44 Interchange (exit 25).

       

    • February 2026

      Hosted the second public meeting and shared next steps.

       

    • 2026

      Complete the environmental evaluation.

    • Summer 2027

      Finalize design and construction plans for the SH-44 interchange.

    • Future

      Begin construction on the SH-44 Interchange when funding is available.

       

    Contact the project team

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

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