South Central Projects

State Route 77 from Tangerine Road to Pinal County Line

ADOT, the Federal Highway Administration and the Regional Transportation Authority are working together to improve traffic flow and enhance safety along SR 77, also known as Oracle Road.

The study evaluated improvements along Oracle Road between Tangerine Road and the Pinal county line that crosses through the Tucson and Oro Valley metropolitan areas, the community of Catalina and Pima and Pinal counties.

Utility relocation work along the project area began spring 2013 and is expected to last through fall 2014.

The construction project began summer 2014 and is anticipated to be completed by spring 2016.

For more information about this project, please contact ADOT Senior Community Relations Officer Paki Rico by calling 520.388.4233 or emailing

These are the proposed improvements:

  • An additional 12-foot wide travel lane in each direction for a total of six travel lanes throughout the project area
  • 10-foot wide shoulders (seven-foot wide with curb in Catalina) allowing cyclists to use widened shoulders
  • Raised-center medians and left-turn lanes in the Catalina area
  • Retaining walls
  • Sound barriers
  • Traffic signal improvements
  • Drainage improvements
  • Shared-use path on the east side of Oracle Road from Wilds Road to Eagle Crest Ranch Boulevard
  • Two wildlife crossing structures to allow wildlife to migrate safely between the Santa Catalina and Tortolita mountains, without crossing the roadway at street level. The crossing structures are made possible through the RTA and are planned to coincide with the ADOT widening project for Oracle Road.

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 602.712.8946 or 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 al 602.712.8946 o 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.