I-10 Reconstruction between Ruthrauff and Ina roads

The Arizona Department of Transportation and the Federal Highway Administration (FHWA) are working to improve safety and traffic flow on I-10 between the Ina Road and Ruthrauff Road interchanges in Tucson. A related Pima County project to extend Sunset Road between I-10 and River Road will be built at the same time. Construction began in February 2023 and the project is expected to be completed by late 2025.

Key elements of the project include:

Reconstructing and widening nearly four miles of I-10 from three lanes in each direction to four lanes
Adding auxiliary lanes to create two-lane entrance and exit ramps at all interchanges in this section of interstate
Replacing the existing inside shoulder pavement on I-10 to add an additional lane in each direction near the Ina Road interchange
Reconstructing the traffic interchange at Orange Grove Road, including providing additional vertical clearance under I-10
Reconstructing the Cañada del Oro Wash and Rillito River I-10 bridges to provide sufficient clearance
Constructing new bridges to carry Sunset Road traffic over the Union Pacific Railroad(UPRR) and the Rillito River
Constructing an access path to the Chuck Huckelberry Loop from Sunset Road

Project Area Map

Additional work includes constructing bridges and retaining walls as needed throughout the project area and providing drainage, lighting, landscaping and other improvements. At the completion of the project, I-10 will have four travel lanes from 22nd Street to Ina Road.

Timeline

Ina to Ruthrauff timeline

February 2025 - Crews are currently moving into the final stages of this project, Phase 4: Sunset Interchange/Sunset Links. This phase will create new access to the interstate by extending Sunset Road east of I-10 to River Road. This involves building new bridges over the Union Pacific railroad tracks and the Rillito River, an element of the project funded by Pima County. The Sunset Road interchange is expected to open in conjunction with the completion of the project in late 2025.

Traffic restrictions

Phase 4 of construction, the following road restrictions are anticipated:

Sunset Road will be closed between Silverbell Road and I-10 for the duration of the project as will the Sunset Road entrance and exit ramps.
River Road will be reduced to a single lane in each direction while the connection to Sunset Road is constructed.
The westbound frontage road will be closed near Sunset Road. It will be converted to a two-way road between the closure point and the Ruthrauff Road on-ramp to westbound I-10 (with no direct access back to Ruthrauff Road).
A temporary exit ramp on eastbound I-10 will provide access to businesses located on the eastbound frontage road between Sunset and Ruthrauff roads.
The Ruthrauff Road/El Camino del Cerro interchange, and the Ina Road interchange will remain open during construction.

Photo Gallery

Stay Informed

ADOT welcomes your questions or comments. Please feel free to contact us in any of the following ways:
Online: Submit a question or comment through the ADOT projects email at: [email protected].
By phone: Call the ADOT Bilingual Project Information Line at 855.712.8530.
By mail: Write to ADOT Communications and Public Involvement, 1221 S 2nd Ave. Tucson, AZ 85713.
For information about current project-related restrictions and closures, please visit az511.gov or call 511, except while driving.
ADOT will provide more information about project schedules and potential traffic impacts as information becomes available. Stay informed about traffic restrictions before they occur by signing up to receive timely traffic alerts by email.