Arizona State Route 86 to leaving the reservation. SR 86 curves towards the east as it enters Tucson. In Tucson, the highway continues east past an interchange with I-19 to 16th Avenue, which serves as its eastern terminus. SR 86 was originally designated in 1930, between Willcox and Bowie. In 1931, it was extended west to Benson and east to the New Mexico state line, effectively serving as a direct bypass to the US 80 Douglas loop. From 1927 to 1960, the remainder of the bypass between the Arizona border and Road Forks, New Mexico was served by New Mexico State Road 14. SR
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