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The Arizona State Highway system was introduced on September 9, 1927, by the State Highway Commission (formed on August 11 of the same year). It incorporated the new federal aid system and also the U.S. Highway system. The 1927 plan included 27 state routes, most of which were simply dirt roads.
The Arizona Department of Transportation (ADOT) is the agency responsible for building and maintaining the Interstate Highways in the Arizona State Highway System. These highways are built to Interstate Highway standards , which are freeways that have a 75-mile-per-hour (121 km/h) speed limit in rural areas and a 65 mph (105 km/h) speed limit ...
Articles about state highways in the U.S. state of Arizona. For a manually maintained list, including yet-to-be-written articles, see List of Arizona State Routes . v
Arizona [b] is a state in the Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah.It also borders Nevada to the northwest and California to the west, and shares an international border with the Mexican states of Sonora and Baja California to the south and southwest.
The Arizona Department of Transportation (ADOT, / ˈ eɪ d ɒ t /) is an Arizona state government agency charged with facilitating mobility within the state. In addition to managing the state's highway system, the agency is also involved with public transportation and municipal airports. The department was created in 1974 when the state merged ...
State Route 77 (SR 77) is a 253.93-mile (408.66-kilometre) long state highway in Arizona that traverses much of the state's length, stretching from its southern terminus at a junction with I-10 in Tucson to its northern terminus with BIA Route 6 at the Navajo Nation boundary just north of I-40.
Map of the United States with Arizona highlighted. Arizona is a state located in the Western United States.According to the 2020 United States census, Arizona is the 14th most populous state with 7,151,502 inhabitants (as of the 2020 census) [1] and the 6th largest by land area spanning 113,623.1 square miles (294,282 km 2). [2]
Due to the popularity of the Lee Highway, the state-designated Roosevelt Dam name became largely forgotten by the traveling public. Between 1917 and 1921, the route from Solomonsville to Geronimo was paved. It along with the Borderland Highway between Bisbee and Douglas became the first two paved state highways in Arizona. With a second ...