Arizona I-10 Access Road Closing for Final South Mountain Freeway Work

Arizona I-10 Traffic | Arizona I-10 Construction | I-10 Exit Guide

A westbound Interstate 10 access road created to complement a Loop 202 South Mountain Freeway interchange will close temporarily between 59th and 67th avenues starting Monday, April 1, to allow for final construction.

During the closure, which extends to May, crews will complete the access road connections to 59th and 67th avenues and make other improvements including new drainage, curb and gutter, sidewalks and traffic signals. A temporary road surface near 59th Avenue will be removed and replaced with permanent pavement.

Motorists should consider alternate routes, including local streets, to reach destinations near 59th and 67th avenues.

In 2018, the Arizona Department of Transportation and Connect 202 Partners, the developer of the South Mountain Freeway, opened new eastbound and westbound I-10 access roads between 51st and 67th avenues to restore access to 59th Avenue. South Mountain Freeway construction required permanently removing I-10 on- and off-ramps at 59th Avenue to make room for the freeway-to-freeway interchange.

The 22-mile South Mountain Freeway is scheduled for full completion in 2020, although traffic is expected to be using the freeway earlier. It will provide a long-planned direct link between the East Valley and West Valley and a much-needed alternative to I-10 through downtown Phoenix. Approved by Maricopa County voters in 1985 and again in 2004 as part of a comprehensive regional transportation plan, the South Mountain Freeway will complete the Loop 202 and Loop 101 freeway system in the Valley.

For information on the project, visit

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