Ada County Highway District

Cloverdale Road, Franklin Road to Camas Drive

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Update - October 2018

We are happy to report that the design for both the roadway and overpass has been completed. The next step is to put the project out to bid and bring a construction contractor on board. We anticipate construction will begin in January.

  • October 15 - Project out to bid
  • October 30 - Bid opening
  • January 2019 - Construction begins


What We Heard in August

At the end of August, we participated in Idaho Power's Cloverdale Transmission Line Upgrade Open Houses to show the public the progress on the Cloverdale project. If you joined us, thank you! Click on the link below to view what we learned:


Materials from August open houses


Thank you for your continued patience as the Ada County Highway District (ACHD) and the Idaho Transportation Department (ITD) work towards designing and reconstructing the Cloverdale overpass and roadway.

Your are invited to join us at Idaho Power's Cloverdale Transmission Line Upgrade Open Houses to learn about our progress on the Cloverdale Road overpass and roadway project between Franklin Road and Camas Drive.

  • August 22, 2018 | 5:30-7:30 p.m.
    • Spalding Elementary | 12311 W. Braddock Dr.
  • August 29, 2018 | 6-8 p.m.
    • Courtyard by Marriott | 1789 S. Eagle Rd.

Mark Your Calendars!
We will be at Idaho Power's Cloverdale Transmission Line Upgrade Open Houses on August 22 and 29 to share the latest information about the Cloverdale overpass and roadway project. Please join us to review the progress made to date on the project and have your questions answered.


In June, the Cloverdale Road overpass sustained extensive fire damage caused from a tragic crash on Interstate 84. As a result, the Idaho Transportation Department (ITD) will be replacing the overpass with a new structure. In coordination with this work, the Ada County Highway District (ACHD) will be improving Cloverdale Road between Franklin Road and Camas Drive.

Project Description


ITD will replace the Cloverdale Road overpass with a wider bridge that will include:

  • Two lanes in each direction
  • Sidewalk, curb and gutter
  • Bike lanes

The structure will also have a higher clearance over I-84 and be built to accommodate a future fifth lane expansion of the Interstate.

Cloverdale Road

ACHD will redesign the approaches to the overpass to include:

  • Two travel lanes in each direction
  • A center turn lane
  • Sidewalk, curb and gutter
  • A raised bike lane
  • Upgraded school zone flashers
  • An upgraded pedestrian signal at Emerson Drive and Cloverdale Road
  • A wider bridge over the Ridenbaugh Canal

While we anticipate moving quickly on this project, we are still in the initial stages of design. We expect to have roadway alignment and overpass design details to share with you in late summer. At that time we will know more about right-of-way impacts and what purchases will need to be made.

Once we have all the design details in place, the intent is to start construction as soon as possible. We expect construction could start as early as this winter, however timelines could change.

Stay Informed

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