Ada County Highway District

Phillippi Street, Targee Street to Overland Road

Starting in early February, the Ada County Highway District will begin construction on the Phillippi Street Pedestrian Projects between Malad Street and Overland Road. Construction is anticipated to be complete late summer 2021.

During construction neighbors can expect:

  • Phillippi Street to be closed to all but local traffic.
  • Temporary pedestrian detours.
  • General construction noise, dust, equipment back up alarms, and ground vibration.
  • Crews working 7 a.m. to 7 p.m. unless otherwise approved.

 Utility work started in January and will continue throughout the project.


 General Description (updated):

  • Construct curb, gutter and sidewalk on east side of Phillippi Street between Targee Street and Overland Road. 
  • Rebuild the street
  • Rebuild existing speed humps
  • Add sharrows (shared lane markings) to designate a shared travel lane for both bicyclists and motorists.
  • Construct bulb outs and update pedestrian ramps
  • Improve stormwater facilities
  • Updated project design
  • Utility work will start in January and will continue throughout the project.

  • This project will be constructed with the Phillippi, Malad to Targee project.

Project Purpose

Increase connectivity and safety for pedestrians and bicyclists.

What is next?

  • December 2017 - Finalize design
  • Fall 2017 thru fall 2018 - Right-of-way purchases
  • 2021 - Construction - this project will be constructed with the Phillippi, Malad to Targee project.


In spring 2018 we learned that the original Phillippi Street design, with sidewalks on both sides of Phillippi, would cause significant impacts to the Andeavor petroleum pipelines located on the east and west sides of the street. This design would have required the Andeavor pipelines to be relocated, an extremely costly endeavor that would cause a hardship to the residents of Phillippi Street during construction.

As a result, the District revisited the original design and assessed the alternatives to meet the purpose and need of this project - to increase connectivity for pedestrian and cyclists - while minimizing the impacts to the pipeline. 


Related Projects

  • Overland and Phillippi Pedestrian Crossing -  This project is currently in the initial draft of the 2018-2022 ACHD Integrated Five-Year Work Plan (IFYWP) that will go before the ACHD Commission for possible adoption on September 27, 2017. If the Plan is adopted, the pedestrian crossing is planned for construction in 2022.
  • Phillippi, Malad to Targee - ACHD will construct improvements on Phillippi, between Malad and Targee with the Phillippi, Targee to Overland in 2021.


We Drive Quality Transportation For All Ada County ~

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