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 being extended from Kingman by way of US 66 through Ash Fork. A new US 193 was proposed from Phoenix through Sacaton and Casa Grande to Picacho. At the time, US 89 served the road between Ash Fork and Phoenix, while State Route 87, State Route 187 and State Route 84 ran between Sacaton and Picacho through Casa Grande (of which only SR 87 still traverses today). Upon hearing of the proposed extensions, citizens of Wickenburg, Arizona, Wikieup and Aguila protested to have US 93 run through their towns instead. The protest was considered and the Arizona Highway Department changed