ADOT

North Valley drivers should plan for closures of State Route 51 (Piestewa Freeway) in Phoenix at times this weekend (Oct. 24–25) for pavement maintenance, according to the Arizona Department of Transportation (ADOT).

The following closures are scheduled along SR 51 to allow crews to apply an asphalt-based treatment, known as a fog seal, along the freeway’s surface to extend the life of the existing pavement:

Southbound SR 51 closed between Loop 101 and I-10 from 11pm Friday to 7pm Saturday (Oct. 24). DETOUR: Alternate freeway routes include southbound I-17 (Phoenix area) or southbound Loop 101 (Scottsdale area). Drivers can consider local routes including southbound Seventh Street or southbound Tatum Boulevard to southbound 44th Street.

Northbound SR 51 closed between I-10 and Loop 101 from 11pm Saturday to 7pm Sunday (Oct. 25). DETOUR: Alternate freeway routes include northbound I-17 (Phoenix area) or northbound Loop 101 (Scottsdale area). Drivers can consider local routes including northbound Seventh Street or northbound 44th Street to Tatum Boulevard.

Crews will be prepared to open sections of the closed freeway ahead of schedule on Saturday and Sunday as their work progresses and the fog seal treatment dries.

The fog seal treatment will include tanker trucks spraying an asphalt-based emulsion on the SR 51 pavement. The treatment helps offset the effects of aging and drying in older pavement, including rubberized asphalt, extending its life cycle.

Real-time highway conditions are available on ADOT’s Arizona Traveler Information site at az511.gov, by calling 511 and through ADOT’s Twitter feed, @ArizonaDOT. When a freeway closure or other major traffic event occurs, a free app available at azdot.gov/adotalerts will send critical information directly to app users in affected areas — where possible, in advance of alternate routes.

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