Transportation Studies

Interstate 19: San Xavier Road to Interstate 10 Design Concept Report and Environmental Assessment

ADOT, in association with the Federal Highway Association, evaluated improvements to I-19 to alleviate congestion and increase capacity within the corridor. The purpose of this project was to evaluate long-term improvements (2030) to I-19 between San Xavier Road and the I-10 / I-19 traffic interchange.

ADOT and FHWA has evaluated the need for construction of the ultimate or long-term improvements and identified those improvements in the Final Design Concept Report, to meet the needs of the traveling public.

I-19 Corridor Study: Interstate 10 to Pima / Santa Cruz County Line

ADOT completed a study in 2003 to identify transportation needs for the corridor through the year 2030. The study recommended long-term improvements through the year 2030 including additional lanes, auxiliary lanes and frontage roads in each direction of travel from San Xavier Road to I-10 with preferred short- and mid-term improvements, including additional interim travel lanes.

I-19 Project Assessment: San Xavier Road to Ajo Way

ADOT completed a Project Assessment (PA) in 2003. The purpose of the PA was to evaluate the feasibility of increasing the capacity of I-19.

I-10 / I-19 Traffic Interchange

Construction of the traffic interchange was completed in 2004.

I-19 Design Concept Report: San Xavier Road to I-10

ADOT completed the Design Concept Report (DCR) in spring 2012. The report is available below.

The Arizona Ombudsman – Citizens Aide helps you resolve ongoing issues with State Agencies.

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, 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, 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.