I-17 101 traffic interchange

Bridge project restricts I-10 west of Benson through spring 2026

Bridge project restricts I-10 west of Benson through spring 2026

November 19, 2025

Expect delays at peak travel times near Empirita Road interchange

TUCSON – The Arizona Department of Transportation has narrowed Interstate 10 to a single lane in each direction about 10 miles west of Benson for a project to rehabilitate four bridges in Pima County. 

ADOT advises drivers to expect delays at peak travel times in the work zone where I-10 passes over the Empirita Road interchange and the Union Pacific Railroad, from mileposts 292 to 293. The lane closures are expected to remain through spring 2026.

The $6.2 million project will rehabilitate the pair of I-10 bridges that travel over Empirita Road and a second pair of bridges that pass over the railroad tracks. The project includes work to the roadway approaching the bridges and replacing nearby guardrails.

During construction, a 14-foot vehicle width will be in place and the speed limit will be reduced to 55 mph.

For more information, please visit the project website at azdot.gov/projects > Southcentral.