The new year will be a time for major improvements along the Tucson area’s freeways, with construction crews finishing an I-10 widening project on the northwest side, and continuing another I-10 project southeast of downtown.
The first big change starts with the Arizona Department of Transportation (ADOT) scheduled to complete a project reconstructing and widening I-10 between Ina and Ruthrauff Roads, which includes replacing the interchanges at Orange Grove and Sunset Links roads. That’s one of the significant projects ADOT has planned for southern Arizona in 2026, with another project already underway on I-10 between Kino Parkway and Country Club Road.
Along 4 miles of I-10 between Ina and Ruthrauff roads, traffic is now flowing smoothly on the newly rebuilt freeway lanes as that project enters its final months. By spring 2026, ADOT will complete the final major piece of the project by opening the reconstructed Sunset Road interchange. The interchange will feature a new I-10 connection eastward to River Road via new bridges, funded by Pima County, that will carry traffic over the railroad tracks and Rillito River.
Southeast of downtown Tucson, ADOT will continue work to widen I-10 between Park Avenue and Alvernon Way. The $600 million project is expanding I-10 from two to three lanes in each direction, including an auxiliary lane between ramps.
The project will also reconstruct the Kino Parkway interchange, remove the existing Palo Verde Road and Irvington Road interchanges and construct a new Country Club Road interchange that will provide access for traffic that currently uses the interchange at Palo Verde Road and Irvington Road to allow for safer traffic movements to and from I-10.
The project includes an I-10 undercrossing to connect the North and South Kino Sports Complex. One improvement has already opened to traffic: a new westbound on-ramp at the Alvernon Way interchange.
Construction began in mid-2025 and will continue through 2028.
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