Ada County Highway District

Cloverdale Road, Franklin Road to Camas Drive

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This project is on an accelerated schedule with completion anticipated by summer 2019. 

Overpass and Roadway Construction Updates as of (3/06/19): 

Photograph of Overpass piers

Overpass Construction:

On the nights of March 4th and 5th,
eastbound I-84 will be CLOSED between the Eagle Road Interchange and the WYE Interchange. The eastbound closures will begin at 9:00 PM and will re-open by 5:00 AM the following morning. Also during these two nights, westbound I-84 will have lane restrictions in order to accommodate work in the median. The lane restrictions will begin at 10:00 PM. and end at 6:00 AM.

View the map of the detour route.

On the nights of March 6th and 7th,
westbound I-84 will be closed between the WYE Interchange and the Eagle Road Interchange starting at 10:00 PM and will re-open by 6:00 AM. Also during these two nights, eastbound I-84 will have lane restrictions in order to accommodate work in the median. The lane restrictions will begin at 9:00 PM. end at 5:00 AM.

Please keep in mind these closures are dependent on weather and are necessary for girder setting.

Roadway Construction:

On both N. Cloverdale Road and S. Cloverdale Road there is continued work to construct the MSE walls. Along with continued work at the Ridenbaugh canal on N. Cloverdale Road. Crews are working on seepage bed installation and will be working Saturday, March 9th, at Braddock St. This work will have flaggers. Crews are also expected to begin work on curb, gutter and sidewalk as early as the week of March 11th.

Crews from Suez Water, Intermountain Gas, and Century Link will be working on the south side of Cloverdale Road to install their utilities. Crews are also constructing the southeast MSE wall.

The pedestrian signal at Braddock Road, near Spaulding Elementary, was 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.

Construction Update as of (11/29/18):

Photograph of Cloverdale overpass

The public will experience immediate impacts of the construction as crews demolish the damaged bridge over Interstate 84. All eastbound lanes and two westbound lanes of I-84 will be CLOSED OVERNIGHT Monday (December 3) from 9 PM to 5 AM Tuesday morning. All westbound lanes and two eastbound lanes of I-84 will be CLOSED OVERNIGHT Tuesday (December 4th) from 10 PM to 6 AM Wednesday morning. View the map of the detour route.

Beginning as early as Monday (December 3rd), pedestrian and bicycle access to the Cloverdale overpass will be restricted.

In addition to the bridge removal, crews will be working on setting a temporary barrier at the Ridenbaugh canal and begin work to widen the bridge over the canal. There will be utility relocations 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




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