Ada County Highway District

Cloverdale Road, Franklin Road to Camas Drive

Click here to sign up for email updates!

Construction Update as of (1/4/18): This project is on an accelerated schedule with completion anticipated by summer 2019. 

Crews successfully removed the damaged overpass Monday (December 3rd) and Tuesday (December 4th). Residents near the overpass should expect noise and vibration beginning Monday, January 7th, as crews begin pile driving to replace the abutments on either side of the bridge. This work will continue on and off for about two (2) weeks.

The pedestrian signal at Braddock Road, near Spaulding Elementary, will be removed on Monday, January 14th and will be down for a majority of the project until a Pedestrian Hybrid Beacon is installed during a later phase of Construction. ACHD is working with the school to provide a safe crossing for students during this work. Crews will begin removing the roadway pavement on the west side of N. Cloverdale Road the week of January 14th.

Photograph of Cloverdale overpass, south section removed

Installation of new waterlines on Cloverdale Road at Emerson Road and Braddock Road is nearly complete. Work is progressing towards Longfellow Drive. Other utility relocations will be ongoing throughout the project.

What to Expect During Construction:

  • Access to local residences and businesses on Cloverdale Road will remain open.
  • Work will include, but not be limited to: general construction noise, dust, equipment backup alarms, and ground vibration.
  • Work on the roadway improvements for Cloverdale Road will typically be 7 a.m. to 8 p.m. but there may be some night work. Working hours on I-84 and the Cloverdale Overpass may vary or be outside of these hours.
  • Cloverdale Road will remain closed between Franklin Road and Camas Drive during construction, but one travel lane in each direction will be open by June 15, 2019.

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

Stay Informed

More Information




We Drive Quality Transportation For All Ada County ~

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