Roadway Engineering

Roadway Design Standards and Guidelines

Roadway Design and Standards

Roadway Design consists of four design teams and a standards team that provide design services and roadway design standards for the state of Arizona. The design teams are committed to providing the highest-quality engineering plans and review based on the five-year construction program. The design standards team develops, maintains and provides technical support for the Roadway Design Guidelines, Policies, Standards and Procedures; Construction Standard Drawings (C-Stds); Design Detail Drawings; and all CADD-related configurations, standards, guidelines and training.

Design Information for Freeway Ramps

Entrance Ramps
  • X7043: Parallel Type Entrance Ramp with Auxiliary Lane (Ramp Taper Super = Mainline Super) (Oct. 30, 2006)
  • X70472: Parallel Type Entrance Ramp with Auxiliary Lane (Ramp Super > Mainline Super) (Oct. 30, 2006)
Exit Ramps
  • X7053: Parallel Type Exit Ramp with Auxiliary Lane (Ramp Super = Mainline Super) (Oct. 31, 2006)
  • X70572: Parallel Type Exit Ramp with Auxiliary Lane (Ramp Super > Mainline Super) (Oct. 31, 2006)

County Maps

The information in the links below was created to allow visitors to view existing county maps of the state of Arizona. The group that produced these maps was dissolved in 1995, and they are no longer being updated by ADOT personnel. Be aware that some of the routes have been redesignated to different route numbers and are not shown on these maps.

  • State by County
    • This map displays all the counties. Clicking a county name will open a detail map of that county. Each detail map is in a downloadable Intergraph .cit file format. Note: To see the maps in some browsers, please allow pop-ups on this page, and make sure that "Display PDF in Browser" is checked in Adobe Reader/Acrobat Preferences.
  • State by Route and Milepost
    • This map displays all the routes and mileposts in the state. Clicking a route or milepost once will open a detail map of that county. Each detail map is in a downloadable Intergraph .cit file format. 
  • State Map 
    • This state map is in a downloadable Intergraph .cit file format.
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 [email protected]. 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 [email protected]. Las solicitudes deben hacerse lo más pronto posible para asegurar que el equipo encargado del proyecto tenga la oportunidad de hacer los arreglos necesarios.