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Arizona Department of Transportation

04/18/2019 | Press release | Distributed by Public on 04/18/2019 13:36

I-10 closures needed to pour bridge deck for South Mountain Freeway

PHOENIX - In another critical step toward completing the Loop 202 South Mountain Freeway interchange in the West Valley, a westbound closure of Interstate 10 followed by an eastbound closure will be needed for bridge construction this weekend, according to the Arizona Department of Transportation.
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Crews with Connect 202 Partners, the developer of the South Mountain Freeway, will be pouring concrete above I-10 travel lanes near 59th Avenue to create the deck of a 750-foot flyover ramp connecting to I-10.

Westbound I-10 will be closed between 51st and 67th avenues from 10 p.m. Friday, April 19, to 6 p.m. Saturday, April 20. Eastbound I-10 will then close between 67th and 51st avenues from 6 p.m. Saturday, April 20, to 3 p.m. Sunday, April 21.

Westbound I-10 traffic can use local detours, including McDowell Road, before re-entering I-10 at 67th Avenue. In addition, the westbound I-10 on-ramps at 27th, 35th and 43rd avenues will be closed to help reduce traffic backups.

Eastbound I-10 traffic exiting at 67th Avenue can use local detours, including McDowell Road, before re-entering I-10 at 51st Avenue. In addition, the eastbound I-10 on-ramps at 91st, 83rd, 79th and 75th avenues will be closed to help reduce traffic backups.

To avoid delays on I-10, motorists should consider alternate routes, including the Loop 101 (Agua Fria Freeway) west of Interstate 17, or exiting I-10 sooner and taking local streets to re-enter past the closure points.
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During the closures, crews will pump approximately 1,300 cubic yards of concrete into the steel-reinforced deck on the flyover ramp that will eventually carry westbound I-10 traffic to the South Mountain Freeway.

Once the concrete is poured, a self-propelled concrete leveling machine called a Bid-well will spread the concrete to ensure a flat surface throughout. After the concrete has had an opportunity to cure and reach maximum strength, construction vehicles can travel on the ramp.

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 SouthMountainFreeway.com.