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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 ...
Travelers can dial 511, a three-digit telephone number, on landlines and most mobile phones. The number has also extended to be the default name of many state and provincial transportation department road conditions Web sites, such as Wisconsin's site. [1] It is an example of an N11 code, part of the North American Numbering Plan.
Five Interstates were planned in Arizona to supplant or bypass existing U.S. Highways. US 60 between Ehrenberg and Phoenix was to be replaced by the western section of the newly planned Interstate 10 (I-10), I-8 and the eastern section of I-10 were to bypass or replace the entirety of US 80, I-40 was to replace the entirety of US 66, I-17 and I ...
State Route 260, also known as SR 260, is a 217.78-mile (350.48 km) long east–west major state highway in the north-central part of the U.S. state of Arizona.It connects State Route 89A in Cottonwood to U.S. Route 180 and U.S. Route 191 in Eagar.
Interstate 11, the Hassayampa Freeway, is a proposed Interstate Highway in the United States to run from Casa Grande, Arizona, northwest to Las Vegas, Nevada, by way of Kingman, Arizona. The highway will parallel and/or upgrade existing U.S. 93 north of Wickenburg; south of Wickenburg, it will follow a new freeway near the Hassayampa River ...
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.
The highway is notable for its scenic value as it winds over and through Mingus Mountain as well as passing through Sedona and the Oak Creek Canyon. The route then enters Coconino County soon after leaving Sedona. The highway proceeds to Flagstaff, where it crosses Interstate 17 (I-17) and I-40. The highway ends at I-40 Business in Flagstaff ...