The ADOT project realigned and widened I-10 from two lanes to three lanes in each direction./ADOT

The Arizona Department of Transportation announced Interstate 10 is open to three lanes in both directions between Tucson and Casa Grande.

The $72 million project began in December 2017. Construction included straightening I-10 between Eloy and Picacho Peak and creating a new interchange with State Route 87. A dust warning system is currently being installed along the 10-mile stretch between the two communities.