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
Unconstructed state routes in Arizona US 89 from Kingman to Wickenburg while the final route of US 93 was to be constructed through Wikieup. The idea was abandoned in 1937, the same year it was proposed. The proposal for US 93 to be extended past Kingman towards Phoenix was denied by the AASHO also in 1937. It wouldn't be until 1965 that US 93 would exist south of Kingman. State Route 176 was a proposed state highway in eastern central Arizona, that would have connected Benson and San Manuel before reaching State Route 77. It was designated in 1967 but was never built, and was