Collister Drive Project, State Street to Hill Road

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ACHD has been working with the Collister Drive neighborhood, between State Street and Hill Road, since 2021 to determine what improvements we should consider to improve Collister Drive for all users.

The Commission adopted the study in 2022 and ACHD is starting design in January 2024. The design will include:

  • New pavement to improve vehicle travel
  • A buffered multi-use pathway on the east side
  • Attached 6’ sidewalk on the west side with multi-use pathways on both sides of Collister between Catalpa Drive and John’s Landing Way
  • Rectangular rapid flashing beacons (RRFBs) north of the alley access to the Collister Shopping Mall and at the intersection of John’s Landing Way and Collister Drive
  • Intersection lighting at improved intersection locations
  • Sidewalks along the north side of John’s Landing, Maplewood Dr to Collister Dr and on the south side of Hill Rd, Maplewood Dr to Collister Dr
  • Permeable pavers installed along portions of the west side on-street parking
  • Two 10.5’ travel lanes
  • Bioretention curb extensions added at locations throughout the corridor
  • Replacing the canal crossing south of Hadlock St

Construction is scheduled for late 2028-2029.

ACHD has been working with the Collister Drive neighborhood, between State Street and Hill Road, since 2021 to determine what improvements we should consider to improve Collister Drive for all users.

The Commission adopted the study in 2022 and ACHD is starting design in January 2024. The design will include:

  • New pavement to improve vehicle travel
  • A buffered multi-use pathway on the east side
  • Attached 6’ sidewalk on the west side with multi-use pathways on both sides of Collister between Catalpa Drive and John’s Landing Way
  • Rectangular rapid flashing beacons (RRFBs) north of the alley access to the Collister Shopping Mall and at the intersection of John’s Landing Way and Collister Drive
  • Intersection lighting at improved intersection locations
  • Sidewalks along the north side of John’s Landing, Maplewood Dr to Collister Dr and on the south side of Hill Rd, Maplewood Dr to Collister Dr
  • Permeable pavers installed along portions of the west side on-street parking
  • Two 10.5’ travel lanes
  • Bioretention curb extensions added at locations throughout the corridor
  • Replacing the canal crossing south of Hadlock St

Construction is scheduled for late 2028-2029.

  • Check out the design for Collister Drive!

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    The Ada County Highway District (ACHD) is designing changes to Collister Drive, from State Street to Hill Road. Thanks to feedback from the community during the 2021/2022 study, a proposed design is now ready for you to review.


    While your comments are always welcome, the survey closed May 22, 2025.

    The Ada County Highway District (ACHD) is designing changes to Collister Drive, from State Street to Hill Road. Thanks to feedback from the community during the 2021/2022 study, a proposed design is now ready for you to review.


    While your comments are always welcome, the survey closed May 22, 2025.

  • November 19, 2024

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    • Design continued through FY25.
    • Construction slated for FY29.

    • Design continued through FY25.
    • Construction slated for FY29.

  • Collister Drive Study Adopted by ACHD Commission

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    The Collister Drive Study was adopted by the ACHD Commission on December 7, 2022.

    The Collister Drive Study was adopted by the ACHD Commission on December 7, 2022.

  • Collister Drive Study to be Presented to ACHD Commission

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    The Collister Drive Study Concept 3 (includes bulb outs, multi-use pathways, sidewalks, enhanced pedestrian crossings and narrower vehicle lanes) will be presented to the ACHD Commissioners for possible adoption on Wednesday, December 7, 2022. The meeting will begin at 6 p.m.; however, this project is one of several agenda items and may not be the first item discussed. ACHD staff will make a brief presentation followed by an opportunity for public comment before the Commission acts.

    The Collister Drive Study Concept 3 (includes bulb outs, multi-use pathways, sidewalks, enhanced pedestrian crossings and narrower vehicle lanes) will be presented to the ACHD Commissioners for possible adoption on Wednesday, December 7, 2022. The meeting will begin at 6 p.m.; however, this project is one of several agenda items and may not be the first item discussed. ACHD staff will make a brief presentation followed by an opportunity for public comment before the Commission acts.

  • August-September 2022 Public Outreach

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    Based on public input from the neighborhood in 2021 and a field inventory assessing specific impacts, ACHD modified two previous concepts and needs your input.

    What do you think?

    Please review the information at the link below. While your comments are always welcome, the comment period closed September 1, 2022.

    • Alternatives
    • Virtual Meetings
      • If you missed the virtual meetings on August 25, 2022 please click on the links below to watch the recordings.
      • 3:30 p.m. | 5:30 p.m.

    Based on public input from the neighborhood in 2021 and a field inventory assessing specific impacts, ACHD modified two previous concepts and needs your input.

    What do you think?

    Please review the information at the link below. While your comments are always welcome, the comment period closed September 1, 2022.

    • Alternatives
    • Virtual Meetings
      • If you missed the virtual meetings on August 25, 2022 please click on the links below to watch the recordings.
      • 3:30 p.m. | 5:30 p.m.

  • January 3, 2022

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    On Thursday, December 16th, the Ada County Highway District (ACHD) asked the community to participate in a virtual open house to review the potential improvements proposed for Collister Drive, between State Street and Hill Road. If you attended the meeting- thank you!

    We heard many concerns expressed during the virtual open house and survey regarding tree impact. As a result, ACHD will conduct an assessment of tree and right of way impacts throughout the whole corridor. This assessment will take some time and may delay our spring virtual open house. However, it is important that we evaluate the proposed concepts with the potential impact on the mature tree canopy. Dependent on the result of our survey, we will revisit the concepts and identify opportunities for modification.

    On Thursday, December 16th, the Ada County Highway District (ACHD) asked the community to participate in a virtual open house to review the potential improvements proposed for Collister Drive, between State Street and Hill Road. If you attended the meeting- thank you!

    We heard many concerns expressed during the virtual open house and survey regarding tree impact. As a result, ACHD will conduct an assessment of tree and right of way impacts throughout the whole corridor. This assessment will take some time and may delay our spring virtual open house. However, it is important that we evaluate the proposed concepts with the potential impact on the mature tree canopy. Dependent on the result of our survey, we will revisit the concepts and identify opportunities for modification.

  • December 2021 Public Outreach

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    December 2021 Materials

    Based on public input from the neighborhood ACHD has several concepts for consideration. While your comments are always welcome, the survey closed on December 23, 2021.

    December 2021 Materials

    Based on public input from the neighborhood ACHD has several concepts for consideration. While your comments are always welcome, the survey closed on December 23, 2021.

  • June-July 2021 Public Outreach

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    Thank you for your interest in the project. While your comments are always welcome, the comment period closed on July 8, 2021.

    Thank you for your interest in the project. While your comments are always welcome, the comment period closed on July 8, 2021.

Page last updated: 09 Mar 2026, 01:48 PM