Ada County Highway District

Maple Grove Road, Amity Road to Victory Road


The ACHD Commission adopted the 5-lane Alternative on April 27, 2022.


The ACHD Commissioners will consider possible adoption of the recommended 5-lane Alternative on Wednesday, April 27, 2022. ACHD staff will make a brief presentation followed by an opportunity for public comment before the Commission acts.

There are several ways to participate in the meeting:

  • In-person - Join us at 3775 Adams Street in the Auditorium.
  • Virtually - The meeting will be live-streamed for members of the public who wish to watch and ask questions online. Click here for more information.


The Ada County Highway District (ACHD) is beginning to develop and evaluate alternatives to improve Maple Grove Road, Amity Road to Victory Road. Preliminary alternatives consider widening Maple Grove Road to include:

  • 3-lane (one lane in each direction with a center turn lane), OR
  • 5-lane (two lanes in each direction with a center turn lane), OR
  • 4-lane (two lanes in each direction with a continuous center median and roundabouts at key intersections)

All alternatives feature:

  • Separated bicycle and pedestrian pathways on both sides with improved crossings at key intersections
  • A roundabout at the Maple Grove Road/Amity Road intersection
  • New wider bridges over the Knudsen Lateral and Tenmile Feeder canals

February/March 2022 Public Outreach 

In early 2022 ACHD sought feedback on proposed alternatives for Maple Grove Road from Amity to Victory. Below is the information that was shared with the public. The survey closed on March 10, 2022


ACHD hosted the Southwest Mobility online public outreach event from August to September 2021 to collect feedback regarding current and future transportation needs in Ada County's southwest region. The responses helped inform the alternatives being proposed for Maple Grove Road. Learn more about the Southwest Mobility Project here.


  • Concept - Spring 2021 to Winter 2021
    • Late Summer 2021 - initial public survey (Southwest Mobility Project)
    • February/March 2022 - stakeholder outreach 
    • March 2022 - public involvement meeting #1 to gather feedback on the proposed design alternatives
    • April 2022 - Commission to consider preferred alternative for adoption
  • Design - Winter 2022 to Fall 2022
    • Fall 2022 - public involvement meeting #2 to gather feedback on the proposed design of the preferred alternative 
  • Right of Way - Winter 2022 to Fall 2023
  • Construction - To be determined

*All time frames are subject to change.

Return to Projects

Related Documents

Project Manager

We Drive Quality Transportation For All Ada County ~

Ada County Highway District © 2017
For Questions or problems with this Web site contact the Webmaster
Privacy Policy