Options for a new interstate in Arizona were presented to a packed audience ... connected to improved existing routes. The maps unveiled Wednesday show alternatives for the interstate run west ...

The Arizona Department of Transportation is opening a third travel lane for drivers as Memorial Day Weekend approaches.

A motorcyclist crashed into a semi-truck on the Interstate 10 after an Arizona Department of Public Safety (DPS) officer tried to pull them over. A long stretch of Interstate 10 will be closed ...

A school bus crash near the southern Arizona city of Tucson has left several students from a different part of the state seriously injured and closed a major interstate. The Arizona Department of ...

The Carter Administration did get one interstate highway to adopt the metric system. The 63-mile long I-19 in Southern Arizona became a 102-kilometer long interstate. It soon became a major ...

The Arizona Department of Transportation ... go north on State Route 169 to get to Interstate 17. This route takes about four hours, according to Google Maps. Heading north from the East Valley ...