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 277 Arizona State Route 277 State Route 277 (SR 277) is a highway in Navajo County, Arizona, that runs from its junction with SR 260 in Heber-Overgaard to its junction with SR 377 in Snowflake. It is an east–west route. SR 277 is a highway that provides a direct route connecting Heber-Overgaard and Snowflake. It does not pass through any other cities or towns. The western terminus is located at an intersection with SR 260 east of Heber-Overgaard. The highway heads northeast from this intersection and curves towards the east prior to an intersection with SR 377, which heads northeast to