ADOT’s $128M I-10 Project in Marana Improves Traffic Flow
by Chuck Harvey | ConstructionEquipmentGuide.com

Besides providing better traffic movement, the $128 million project will improve safety at the location. (Arizona Department of Transportation photo)
Funding for the work is provided by the Federal Highway Administration, Pima Association of Governments and the Regional Transportation Authority. Marana also contributed $7.9 million toward the cost of new bridges being built over the Santa Cruz River.
Ina Road will be widened to Silverbell Road west of I-10. An additional lane will be added, giving the highway four lanes in each direction. The project also will turn an aging intersection into a modern interchange. One of the major changes will be a new bridge to carry Ina Road traffic over I-10 and the railroad tracks.
The original bridge, which has been demolished, carried I-10 motorists over Ina Road. Crews have been working to rebuild a four-lane Ina Road west of the freeway. They dug holes for pillars to support the new bridge. A milestone was met at the end of January 2018 when westbound traffic was moved to the new eastbound pavement. That allowed for three lanes in both directions until the project is complete.