Interstate 10 and State Route 210 Study

The Arizona Department of Transportation (ADOT) has prepared a Environmental Assessment (EA) and Design Concept Report (DCR) to study potential improvements to two important corridors that serve the Tucson area:

  • Interstate 10 (I-10) from the I-10/Interstate 19 (I-19) interchange to Kolb Road
  • State Route 210 (SR 210) (Barraza‑Aviation Parkway) from Golf Links Road to a future connection with I-10 along Alvernon Way


I-10 / SR 210 Project Map

Beginning in 2011, Phase 1 of the long-range planning process for these corridors included a Feasibility Study and Environmental Overview. The Feasibility Study, which was completed in 2015, examined future transportation needs and potential improvements, and the Environmental Overview identified potential environmental issues in the study area. The Feasibility Study compared the benefits and disadvantages of five potential alternatives, and based on those findings, two build alternatives and one "no-build" (nothing changes) alternative were moved forward to be studied in Phase 2.

As part of Phase 2 of the study, an Environmental Assessment (EA) and a Design Concept Report (DCR) were prepared. They recommend the following improvements:

  • Designating Alvernon Way as SR 210 from Golf Links Road to I-10 and adding one (1) lane in each direction
  • Adding a new system interchange to provide access from SR 210 to I-10
  • Adding up to two (2) lanes in each direction on I-10 from the I-10/I-19 interchange to Alvernon Way
  • Adding up to four (4) lanes in each direction on I-10 from Alvernon Way to Kolb Road

Need more information?

  • Phone: Call the ADOT Project Information Line at 855.712.8530
  • Online: Submit a question or comment online (select Projects from the drop-down menu)
  • Mail: ADOT Communications
    1655 W. Jackson Street MD 126F
    Phoenix, AZ 85007