I-90 Exit 59 (N. LaCrosse Street) Interchange Reconstruction – Construction Information Meeting



    Virtual Construction Information Meeting

    Welcome to the I-90 Exit 59 (N. LaCrosse Street) Interchange Improvements Project Virtual Construction Information Meeting

    The South Dakota Department of Transportation (SDDOT) in coordination with the City of Rapid City are constructing improvements at the I-90 Exit 59 (N. LaCrosse Street) Interchange and on I-90 between Exit 58 (N. Haines Avenue) and Exit 59 (N. LaCrosse Street). This virtual construction meeting is intended to provide information regarding the second season of construction on the project, including information on construction sequencing for the work on North LaCrosse Street as well as route detours during construction of the diverging diamond interchange improvements.

    Thank you for your participation in the online meeting!

    How to Navigate the Online Meeting Page

    • Scroll down to view the items on each section of the meeting. Click on the arrows on the right of your screen to advance forward to the next section or left to return to a previous section. You may also use the navigation bar on the left side of the screen to revisit any part of the meeting. You can view presentation videos by clicking on the play button and view links and maps by clicking directly on the respective item.

    Presentation Overview Video

    Project Map

    a map highlighting us I-90 road intersecting with nort lacrosse street

    Project Status

    Project Background

    The first season of construction on the project was completed in 2021, with the I-90 mainline improvements being installed. Construction on the second season of improvements is anticipated to begin on February 28, 2022, with the new interchange becoming fully operational in November, 2022. Overall project completion is scheduled in June of 2023.

    Season 1 Improvements

    Presentation Video 2

    Construction Sequencing and Detours

    Construction Will Be Starting Again

    The work for the second construction season of the project is scheduled to get underway on February 28th 2022. To learn more about the traffic sequencing and detours, please view the short video to the right. You may also view the different project sequencing and detour information figures.

    Detour & Construction Phasing Exhibits

    1. DDI Phasing Plan 2022
    2. DDI Phase I
    3. DDI Phase 2
    4. DDI Phase 3A
    5. DDI Phase 3B
    6. Detour EB/WB On Ramps Closed at N. LaCrosse Street
    7. Detour LaCrosse Street Overpass Closed (I90 and N. LaCrosse Street)

    Presentation Video 3

    Conclusion & Opportunity for Questions

    Thank You!

    Thank you for your interest in the I-90 Exit 59 (N. LaCrosse Street) interchange project! Please view the short conclusion video and learn how you can ask questions and sign up for construction updates!

    Presentation Video 4

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