Interstate 10 Improvement Project: State Route 587 to State Route 387


The Arizona Department of Transportation is working to improve a 10-mile section of Interstate 10 between State Route 587 (Casa Blanca Road) and SR 387 in Casa Grande. The project area is in Pinal County on the Gila River Indian Community, about 16 miles south of Chandler.

The scope of work for this $15 million project includes removing and replacing pavement in both directions; installing new guardrail; signing and striping; seeding; and other related work. After the existing pavement is milled out, the roadway will be resurfaced with rubberized asphalt.


March 22, 2020 through fall/winter 2020


  • Work is scheduled to occur during overnight hours between 8 p.m. and 5 a.m. Sundays through Thursdays.
  • No work is currently scheduled to occur on weekends or holidays.
  • Schedules are always subject to change because of weather or other unforeseen factors.  

Project Area

I-10 between 387 and SR 587 Project Map

What to Expect

  • I-10 will be narrowed to one lane in each direction in 2-mile increments while work is underway.
  • Plan for slower traffic in the project area. Delays of 20 minutes are possible.
  • The active work zone will be in place adjacent to the I-10 travel lanes. Slow down and use extreme caution around construction personnel and equipment.

Restrictions and Closures

For information about project-related restrictions and closures please visit or call 511, except while driving.

Schedules are always subject to change because of weather or other unforeseen factors.  Remember to slow down and use caution around construction workers and equipment. 

Stay Informed!

By email: Subscribe to receive project updates and traffic alerts.

By phone:  Call the ADOT Bilingual Project Information Line at 855.712.8530.

Online: Submit a question or comment through the ADOT website. Visit and then select Projects from the dropdown menu.

Twitter:  Follow ADOT on Twitter  (@ArizonaDOT) for real-time highway conditions statewide.

By mail:  ADOT Community Relations, 1655 W. Jackson Street, MD 126F, Phoenix, AZ 85007