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 93 approved a request from the Arizona Department of Transportation to eliminate all of US 89 south of Flagstaff. Thus, US 93 was extended to its current southern terminus at US 60 in Wickenburg. At its original northern terminus in Kingman, State Route 93 branched off of U.S. Route 66 (Andy Devine Avenue) at Louise Avenue, which is several miles east of where U.S. Route 93 and U.S. Route 466 branched northwest to Boulder City and Las Vegas. The old two-lane SR 93 headed east, south of and parallel to the new alignment of Interstate 40 until it came to the