Rose Hill and Owyhee Street Intersection

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This project is substantially complete. 

The Ada County Highway District (ACHD) is currently designing a mini roundabout for the Rose Hill and Owyhee intersection. The goal is to increase safety for people walking and biking across Rose Hill and to slow motor vehicle speeds near and through the intersection.

After working with the community to determine the best intersection treatment and adopting the concept design in 2021, ACHD is ready to seek your feedback on the mini-roundabout design before it is finalized in early 2023.

Improvements Include

• A mini roundabout at the Rose Hill and Owyhee intersection
• Painted crosswalks with Rectangular Rapid Flashing Beacons (RRFB) at each pedestrian crossing
• Buffered sidewalk around the intersection and bike ramps on Rose Hill
• Intersection lighting


The Ada County Highway District (ACHD) is currently designing a mini roundabout for the Rose Hill and Owyhee intersection. The goal is to increase safety for people walking and biking across Rose Hill and to slow motor vehicle speeds near and through the intersection.

After working with the community to determine the best intersection treatment and adopting the concept design in 2021, ACHD is ready to seek your feedback on the mini-roundabout design before it is finalized in early 2023.

Improvements Include

• A mini roundabout at the Rose Hill and Owyhee intersection
• Painted crosswalks with Rectangular Rapid Flashing Beacons (RRFB) at each pedestrian crossing
• Buffered sidewalk around the intersection and bike ramps on Rose Hill
• Intersection lighting


This project is substantially complete. 

  • November 15, 2024

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    • Rose Hill and Owyhee intersection is closed for the duration of the project.
    • Pedestrian detour in place for school traffic. Bike lanes are closed as well.
    • Concrete placements complete.
    • Block wall installation complete on three of the four corners.
    • Additional bikeway signage and devices are to be added next week.
    • Asphalt paving is on-going.

  • November 7, 2024

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    • Rose Hill and Owyhee intersection is closed for the duration of the project.
    • Pedestrian detour in place for school traffic. Bike lanes are closed as well.
    • Various concrete placements on going.
    • Block wall installation nearly complete on three of the four corners.
    • Additional bikeway signage and devices are to be added next week.

  • November 1, 2024

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    • Rose Hill and Owyhee intersection is closed for the duration of the project.
    • Pedestrian detour in place for school traffic. Bike lanes are closed as well.
    • Base material import and grading is complete.
    • Irrigation work complete.
    • Light pole bases and electrical boxes are set.
    • Curb and gutter being placed.
    • Concrete island and various sidewalk/ped ramps have been placed.

  • October 24, 2024

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    • Rose Hill and Owyhee intersection is closed for the duration of the project.
    • Pedestrian detour in place for school traffic. Bike lanes are closed as well.
    • Base material import and grading is nearly complete.
    • Irrigation work complete.
    • Light pole bases and electrical boxes are being set.
    • Curb and gutter being placed.

  • October 17, 2024

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    • Rose Hill and Owyhee intersection is closed for the duration of the project.
    • Pedestrian detour in place for school traffic. Bike lanes are closed as well.
    • Base material import and grading is nearly complete.
    • Irrigation work complete.
    • Light pole bases and electrical boxes are being set.
    • Curb and gutter being placed.

    Due to unforeseen delays in chip seal operations impacting the project the new target end date for construction completion is late November.

  • October 10, 2024

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    • Rose Hill and Owyhee intersection is closed for the duration of the project.
    • Pedestrian detour in place for school traffic.
    • Bike Lanes are closed as well.
    • Base material import and grading is nearly complete.
    • Irrigation work complete.
    • Light pole bases and electrical boxes are being set.

  • October 4, 2024

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    • Rose Hill and Owyhee intersection is closed for the duration of the project.
    • Pedestrian detour in place for school traffic. Bike Lanes are closed as well.
    • Thermoplastic and painted pavement markings complete east and west of the roundabout.
    • Contractor is working on grading the road.
    • Irrigation work ongoing.

  • September 26, 2024

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    • Rose Hill and Owyhee intersection is closed for the duration of the project.
    • Pedestrian detour in place for school traffic.
    • Thermoplastic and painted pavement markings complete east and west of the roundabout. Minor adjustments to be made.
    • Contractor started importing fill.
    • Irrigation work ongoing.

  • September 20, 2024

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    • Rose Hill and Owyhee intersection is closed for the duration of the project.
    • Pedestrian detour in place for school traffic.
    • Thermoplastic and painted pavement markings complete east and west of the roundabout. Minor adjustments to be made.
    • Contractor started demo and excavation.
    • Tree removal complete.
    • Survey set for irrigation and concrete placements.
    • Irrigation work starting this week.

  • September 13, 2024

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    • Rose Hill and Owyhee intersection is closed for the duration of the project.
    • Pedestrian detour in place for school traffic.
    • Thermoplastic and painted pavement markings complete east and west of the roundabout.
    • Minor adjustments to be made.
    • Contractor to start demo and excavation this week.
    • Tree removal complete.