South Central Projects

Interstate 10: Pinal Airpark Road Bridge Rehabilitation project

The Arizona Department of Transportation is completing a bridge rehabilitation project to the Pinal Airpark Road bridge over Interstate 10.


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The $1.7 million dollar project is located near the Pinal/Pima County line between Tucson and Casa Grande (milepost 232). The existing bridge was built in 1963.

Work began in November 2018 and is expected to run through spring 2019.

Key elements of the project include:

  • Replacing the bridge deck
  • Repairing steel girders
  • Updating the guardrail

The project will require closure of the bridge over I-10 for about four months starting the night of Monday, December 3. During that time, traffic between Pinal Airpark Road and westbound I-10 will need to use alternate routes.

Motorists going from westbound I-10 to Pinal Airpark Road will be directed to the Red Rock interchange (6 miles to the northwest) and back to Pinal Airpark Road using eastbound I-10. Motorists going from Pinal Airpark Road to westbound I-10 will take eastbound I-10 to the Marana Road exit (5 miles to the southeast), where they can access westbound I-10. 

Traffic to and from eastbound I-10 will not be affected.

In addition, I-10 will be reduced to two lanes in each direction during certain phases of the project.

Drivers should proceed through the work zone with caution, slow down and watch for construction personnel and equipment. Expect possible delays and consider alternate routes.

Schedules are subject to change based on weather and other unforeseen factors. Subscribe to receive project updates and traffic alerts by email. For more information, please call the ADOT Project Information Line at 855.712.8530 or email For real-time highway conditions statewide, visit ADOT’s Traveler Information Site at, follow ADOT on Twitter (@ArizonaDOT) or call 511, except while driving.

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Civil Rights

Pursuant to Title VI of the Civil Rights Act of 1964, the Americans with Disabilities Act (ADA) and other nondiscrimination laws and authorities, ADOT does not discriminate on the basis of race, color, national origin, sex, age, or disability. Persons that require a reasonable accommodation based on language or disability should contact ADOT’s Civil Rights Office at Requests should be made as early as possible to ensure the State has an opportunity to address the accommodation.

De acuerdo con el Título VI de la Ley de Derechos Civiles de 1964, la Ley de Estadounidenses con Discapacidades (ADA por sus siglas en inglés) y otras normas y leyes antidiscriminatorias, el Departamento de Transporte de Arizona (ADOT) no discrimina por motivos de raza, color, origen nacional, sexo, edad o discapacidad. Las personas que requieran asistencia (dentro de lo razonable) ya sea por el idioma o discapacidad deben ponerse en contacto con la Oficina de Derechos Civiles de ADOT en Las solicitudes deben hacerse lo más antes posible para asegurar que el Estado tenga la oportunidad de hacer los arreglos necesarios.