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I-10 Alert: Weekend closures west of downtown Phoenix

Bridge work June 23-26 and July 7-10 part of South Mountain Freeway project
June 14, 2017

PHOENIX – Drivers using Interstate 10 through west Phoenix should plan ahead to avoid two closures of the westbound lanes at 59th Avenue for initial work to build a flyover bridge that will eventually connect to the Loop 202 South Mountain Freeway, according to the Arizona Department of Transportation.

TenAlertWith heavy traffic and delays expected, ADOT recommends drivers allow extra travel time and consider alternate routes, such as the Loop 101 (Agua Fria Freeway) west of I-17, while the following closures are in place:

  • Westbound I-10 closed at 59th Avenue from 10 p.m. Friday, June 23 to 5 a.m. Monday, June 26.
  • Westbound I-10 closed at 59th Avenue from 10 p.m. Friday, July 7 to 5 a.m. Monday, July 10.

During the closures, westbound I-10 traffic will be detoured to the off- and on-ramps at 59th Avenue, but expect heavy traffic.

These closures are needed to set steel beams to temporarily support the concrete structure, also known as a straddle bent, for the future westbound I-10 connection to southbound Loop 202 South Mountain Freeway. The straddle bent is a multicolumn pier with an extra wide column spacing to straddle the I-10 lanes directly below the pier.

The 22-mile South Mountain Freeway, expected to open by late 2019, 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 more information on the South Mountain Freeway, visit

Highway conditions are available via ADOT’s Traveler Information site at or by calling 511.


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De acuerdo con el título VI de la Ley de Derechos Civiles de 1964 y la Ley de Estadounidenses con Discapacidades (ADA por sus siglas en inglés), el Departamento de Transporte de Arizona (ADOT por sus siglas en inglés) no discrimina por raza, color, nacionalidad, edad, género o discapacidad. Personas que requieren asistencia (dentro de lo razonable) ya sea por el idioma o por discapacidad deben ponerse en contacto con la Oficina de Derechos Civiles en Las solicitudes deben hacerse lo más pronto posible para asegurar que el equipo encargado del proyecto tenga la oportunidad de hacer los arreglos necesarios.