Best of Arizona: Interstate 10 Widening: Prince Road to 29th Street
Submitted by Arizona Dept. of Transportation
When awarded, this widening was ADOT’s largest project ever. The improvements included widening approximately five miles of Interstate-10 through the heart of downtown Tucson, increasing it from six to eight lanes plus auxiliary lanes between ramps. Sixteen bridges were demolished and rebuilt to meet current federal standards, all of which took place while the interstate remained open.