Some of the Arizona Department of Transportation’s biggest projects this year will occur in southern Arizona.
ADOT will continue replacing the interchange at Ajo Way (State Route 86) and Interstate 19 in Tucson. A project to create a modern interchange at Ina Road and I-10 in Marana will advance to include a two-year closure of Ina Road starting Feb. 15, making way for construction of a bridge carrying a widened Ina Road over the interstate and Union Pacific railroad tracks.
A project scheduled to begin later this year will advance plans for a dust detection and warning system on I-10 between Eloy and Picacho, helping to make travel between Tucson and Phoenix safer through an area prone to sudden blowing dust.