Southcentral Districts Projects

Interstate 10: Ina Road Traffic Interchange Construction

I-10 currently passes over Ina Road, and with this project, Ina Road will become elevated and pass over I-10 and Union Pacific Railroad. The existing frontage roads and ramps will require reconstruction to intersect with the crossroad in its reconstructed (elevated) position.

The project includes two-lane, one-way frontage roads along each side of I-10 and necessary crossroad widening at the frontage road intersections and eliminate the existing at-grade railroad crossings of the Union Pacific Railroad tracks at Ina Road. The proposed improvements shown for I-10 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 TI. This project will also remain sensitive to environmental concerns and cultural resources.


Project Timeline
I-10 Ina Rd TI Timeline
Project schedule is subject to change.


Draft Environmental Assessment Re-Evaluation

The Arizona Department of Transportation (ADOT) and the Federal Highway Administration (FHWA) are proposing to reconstruct the Interstate 10 / Ina Road traffic interchange and make improvements to Ina Road between Silverbell Road and Camino de la Cruz. The project will enhance safety by eliminating the existing at grade crossing of Ina Road and the Union Pacific Railroad (UPRR) and building an overpass taking Ina Road over I-10. I-10 will be lowered as part of the new Ina Road overpass construction. The project will also construct two structures over the Santa Cruz River. The eastbound and westbound frontage roads will be elevated to intersect with the new vertical alignment of Ina Road. The Loop Trail would be closed at Ina Road for extended periods during the project construction period.

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.

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Civil RightsTitle VI of the Civil Rights Act of 1964, and the Americans with Disabilities Act (ADA)

Pursuant to Title VI of the Civil Rights Act of 1964, and the Americans with Disabilities Act (ADA), ADOT does not discriminate on the basis of race, color, national origin, age, sex 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 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.