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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 in ...
State highways within Arizona are referred to as Arizona State Routes or State Routes, with the prefix "SR" being used for abbreviations. [2] [3] ADOT also recognizes seven different types of suffixed routes for the U.S. Highways and State Routes. [4] The recognized suffixes consist of the following with "(Number)" filling in for a numeric ...
The Arizona State Highway Department (ASHD) formally recognized the U.S. Highways on September 9, 1927, during the establishment of the Arizona State Highway System. [3] When the U.S. Highways within Arizona were first being planned, the proposed routes consisted of U.S. Route 60 (US 60) from Topock to Lupton, US 70 from Holbrook to New Mexico ...
There are 71 primary Interstate Highways in the Interstate Highway System, a network of freeways in the United States. These primary highways are assigned one- or two-digit route numbers, whereas their associated auxiliary Interstate Highways receive three-digit route numbers. Typically, even-numbered Interstates run east–west, with lower ...
State Route 50, also known as the Paradise Parkway, was a proposed urban freeway through Glendale and Phoenix.Originally proposed in 1968 as SR 317, [1] the freeway would have run east to west, connecting the future State Route 51 and Loop 101, while running roughly parallel to, and 4 miles (6.4 km) north of, I-10 in the vicinity of Camelback Road.
U.S. Route 95 was a late addition to Arizona's U.S. Highway system, having been extended into the state around 1960 during the dawn of the Interstate Highway System. [6] [7] Though it is a short section of highway, only traveling between Ehrenberg and San Luis at the Mexico–United States border, it also serves as the main north–south highway to the cities of Yuma, San Luis, and Quartzsite. [2]
The Interstate Highway System of the United States, in addition to being a network of freeways, also includes a number of business routes assigned by the American Association of State Highway and Transportation Officials (AASHTO). These routes connect a central or commercial district of a city or town with an Interstate bypass.
Interstate 10 Business (Willcox, Arizona) Interstate 410 (Arizona) Interstate 510 (Arizona) Interstate 710 (Arizona) Interstate 15 in Arizona; Interstate 17; Interstate 19; Interstate 19 Business (Nogales, Arizona) Interstate 19 Business (Sahuarita–Tucson, Arizona) Interstate 40 in Arizona; Interstate 40 Business (Ash Fork, Arizona ...