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
Arizona State Route 71 1936. Prior to 1934, the SR 71 designation was given to a road from US 180 near Safford to US 60 in Eagar. This previous incarnation of SR 71 had existed since 1927 and was part of the original state highway system introduced by the Arizona State Highway Commission on 9 September 1927. SR 71 was absorbed into SR 81 in 1934 and subsequently SR 81 became an extension of US 666 (now US 191). Arizona State Route 71 State Route 71 (or SR 71) is a state highway in central Arizona that stretches between its northeast terminus at its