South Central Projects

Interstate 10: Ruthrauff Road Traffic Interchange


The Interstate 10/Ruthrauff Road traffic interchange will be reconstructed to improve traffic operations on both roadways.

Key elements of the project:

  • Lower I-10 to go beneath Ruthrauff Road
  • Raise Ruthrauff Road to go over Davis Avenue/Highway Drive, the Union Pacific Railroad and  I-10
  • Widen I-10 to four lanes in each direction
  • Widen Ruthrauff Road to two lanes in each direction
  • Reconstruct the I-10 frontage roads to connect to the elevated Ruthrauff Road
Ruthrauff Road will close to all traffic at I-10 for up to 24 months.
Business access will be maintained throughout the project.

Park and ride lot at Interstate 10, Ruthrauff Road set to close April 12

The park and ride lot on the northeast corner of Interstate 10 and Ruthrauff Road is set to permanently close on Friday, April 12.

The closure will allow preliminary archaeological work to begin in advance of the I-10/Ruthrauff Road interchange reconstruction project, which is set to begin later in 2019.

SunTran riders who use the lot are encouraged to go to the SunTran website at to find an alternate park and ride lot.

Project Status Update

Preliminary archaeology and demolition work near the interchange are currently underway. Much of that work is being completed under a separate contract from the roadway construction contract.

Preliminary utility work is also set to begin later this summer or early this fall, with minimal impacts to traffic.

We currently expect the project to be advertised for bids this summer and awarded to a contractor this fall, with roadway construction anticipated to begin as soon as late 2019. (As always, schedules are subject to change.)

Once a contractor is on board this fall or early winter, we will host a meeting for the public and businesses to provide more specific information about the project schedules and expected staging sequences.

Project Map


Project Purposes

The project is designed to improve safety on both Ruthrauff Road and I-10.

Currently, passing trains stop all traffic on Ruthrauff Road, which causes backups onto I-10. In the new configuration, traffic on Ruthrauff Road will pass over the railroad and I-10, eliminating the at-grade railroad crossing.

In addition, the interchange reconstruction is part of a series of projects to increase capacity on I-10 between Ruthrauff and Ina roads.


2013 – Final design begins

2019 – Final design completed

2019 to 2021 - Construction


Schedules are subject to change based on weather and other unforeseen factors.  Subscribe to receive project updates and traffic alerts by email. For more information, please call the ADOT Bilingual Project Information Line at 855.712.8530 or submit a question or comment by email.  For real-time highway conditions statewide, visit ADOT's Traveler Information Site at, follow ADOT on Twitter (@ArizonaDOT) or call 511, except while driving.

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