Southcentral Districts Projects

Interstate 10: Ina Road Traffic Interchange Construction

The Arizona Department of Transportation, Federal Highway Administration, Pima Association of Governments/RTA and the town of Marana are working to improve the Interstate 10/Ina Road interchange area.

Key project elements:

  • Reconstruct the I-10/Ina Road interchange
  • Widen I-10 to three lanes in each direction
  • Widen Ina Road to two lanes in each direction from Silverbell Road to Camino de la Cruz
  • Eliminate the at-grade crossing of Ina Road and the Union Pacific Railroad (UPRR)
  • Lower I-10 to run beneath Ina Road and raise Ina Road to run above I-10
  • Reconstruct the I-10 frontage roads
  • Build two Ina Road bridges over the Santa Cruz River

The improvements meet the long-range planning objectives of ADOT, the town of Marana, Pima County, Pima Association of Governments and the RTA and improve the capacity, public safety and operational characteristics of the Ina Road traffic interchange. This project will also remain sensitive to environmental concerns and cultural resources.

Design Concept Report (DCR) and Environmental Assessment (EA) complete 2013
Complete Final Design 2016
Construction 2017-early 2019
Traffic Alerts

Drivers should 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.

Need more information?

For more information about this project, please call the ADOT Project Information Line at 855.712.8530 or email with questions or comments.

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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.