Interstate 40 in Arizona Interstate 40 in Arizona Interstate 40 (I-40) is an east–west Interstate Highway that has a section in the U.S. state of Arizona, connecting sections in California and New Mexico. The section throughout Arizona is also known as the Purple Heart Trail. It enters Arizona from the west at a crossing of the Colorado River southwest of Kingman. It travels eastward across the northern portion of the state connecting the cities of Kingman, Ash Fork, Williams, Flagstaff, Winslow, and Holbrook. I-40 continues into New Mexico, heading to Albuquerque. The highway has major junctions with U.S. Route 93 (US 93) — the
Former state routes in Arizona Former state routes in Arizona Below is a list and summary of the former state highways. State Route 62 was a state highway in northwestern Arizona running a total of from US 93, north of Kingman to the mining town of Chloride. The road first appeared on a 1936 map and it was deleted from the state highway system in 1971 because of the closure of the mine in Chloride. The road is still in use today as a county route. State Route 63 was a state highway in northeastern Arizona. The route first appeared on a state map in