The Arizona Department of Transportation is promising a three-lane Interstate 10 in each direction from Tucson all the way to Casa Grande within the next 18 months.
One of the two widening projects necessary to get there is expected to start this week, and the agency is saying travel delays during the project should be minimal.
The $36.6 million project will start just south of Earley Road and extend to the I-8 junction. Periodic lane closures will be in effect, but only at night.
The other widening project is underway on I-10 near Eloy, where crews are adding lanes, a new traffic interchange at Arizona 87 and creating a new dust-detection zone.
That project, which started in December, is to be completed in fall of 2019.
