Arizona State Route 80 Arizona State Route 80 State Route 80 (SR 80) is a roughly arc-shaped highway lying in southeastern Arizona that, with New Mexico's State Road 80, is a relic of the old U.S. Route 80, now truncated from San Diego to Dallas. This segment of old US 80 was not closely paralleled by Interstate 10, which lies to its north, and instead supplants the old and more direct (defunct in eastern Arizona) State Route 86. The route begins at an intersection with I-10 Bus. in Benson near an Amtrak station. The route heads south until it exits the city limit of
Arizona State Route 153 has peak hour traffic issues, it is still adequately handling most of the Sky Harbor Airport traffic that comes from the East Valley off Interstate 10 and US 60, thus proving that Route 153 had always been consistently under-utilized. As of Aug 2011, work is underway to widen SR 143 between the junction of I-10 and Sky Harbor Airport with new and expanded flyover ramps at the junction with I-10. Exit numbers were removed in 2007. Arizona State Route 153 State Route 153, also known as SR 153 and the Sky Harbor Expressway, is a former state highway in Maricopa