Former state routes in Arizona

Below is a list and summary of the former state routes in Arizona, including mileage tables and maps.

[19] The primary purpose for the existence of SR 69T was to serve as a detour and temporary corridor for future I-17 and I-10 traffic between Grand Avenue and Baseline Road, while both Interstates were under construction.

[1][20] On July 17, 1970, SR 69T was decommissioned west of I-10 and Baseline Road in Tempe, completely removing the designation from Phoenix.

[33] A small section of SR 74 from Ehrenberg traveling a few miles east had been graded and given an improved surface by 1929.

[39][40] A small segment of Pomerene Road near Benson was later added to SR 76, creating the discontinuous gap.

[40][47][48] On December 16, 1988, SR 76 was entirely decommissioned as a state highway, with any land and right of way acquired for the incomplete Benson extension also being sold off.

SR 79T was to exist only until the proposed federal aid route between Camp Verde and Flagstaff was completed.

[57] On April 24, 1970, approval was given to remove the SR 79 designation and signage between Cordes Junction and Interstate 40 (I-40) in Flagstaff, as this section of the route was replaced by or slated to be rebuilt into I-17.

[58] However, sections not built to Interstate standards were still marked as SR 79 on the official 1971 state highway map.

SR 79 then ran entirely concurrent with US 89A from just north of the I-17 and I-40 interchange to US 66 and US 89 (which was later replaced by I-40 Business).

[67] The second SR 81 was first designated on December 28, 1962, along a pre-existing county road between US 180 / US 666 (later US 191) and Lyman Lake.

[67] The route followed Lake Powell Boulevard through Page, intersecting with Coppermine Road, which was a former section of SR 98.

State Route 93 was the original designation for the highway from Kingman to Wickenburg, which was built in 1946.

At some point prior to 1964 the northern terminus of the state route was moved south to the unnamed desert junction with U.S. 89 just north of Wickenburg, and the southern terminus of U.S. 93 was moved route south to the U.S. 89 junction.

When U.S. 89 was reduced to state highway status in the 1990s, U.S. 93's southern terminus was moved south a few miles to U.S. 60 in Wickenburg.

SR 153 did, however, provide a direct link between east Phoenix, such as office developments in the Southbank commercial project, and the city of Tempe.

SR 260 was originally commissioned on January 10, 1955 from U.S. Route 60 in Show Low to Heber, designated along county maintained roads.

[89] State Route 164 (SR 164) was a 50.90-mile (81.92-kilometre) long highway in the northern part of Arizona.

[1][71] SR 164 was established on July 26, 1960 from existing county roads between Valle and Flagstaff.

State Route 166 (SR 166), was a 2.79-mile (4-kilometre) long state highway in the north-central part of Arizona, starting at a junction with Interstate 40 / U.S. Route 66 within the Flagstaff city limits and ending at the Walnut Canyon National Monument.

[101] The first segment of the extension was completed designated part of SR 172 on July 14, 1961 between Site Six (present day Lake Havasu City) and US 66.

[38] The route was designated as a state highway on January 10, 1955, from an existing county maintained road between SR 79 in Camp Verde and US 89A in Cottonwood.

[108] SR 279 was truncated back to its original terminus in Cottonwood on January 7, 1977, when US 89A was re-routed onto the bypass.

[110] An old loop road labeled "Old Highway 279" runs from East Cherry Creek Road, just northeast of a traffic circle with SR 260, heading northwest before returning to SR 260 near the Hayfield Draw Off-Highway Vehicle Recreation Area.

SR 280 was the shortest state highway in Arizona, at 1.47 miles (2.37 km) in length.

[1] SR 364 was designated on September 9, 1961, when the Arizona State Highway Department took ownership of the existing road between Teec Nos Pos and the Four Corners.

Boosters wanted to route this new highway marked from Nogales, Arizona, north to Sweetgrass, Montana.

At Montrose, State Route 789 followed U.S. 50 northwest to Grand Junction, then turned east again, this time via U.S. 6-24 (now Interstate 70).

U.S. 87 and State Route 789 merged from Billings all the way to Great Falls, which brought SR 789 westward again.

Then State Route 789 turned due north along U.S. 91 (now I-15) to its end at Sweetgrass, Montana.