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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 addition, 511.org provides information on bicycling, ridesharing, and the toll road system FasTrak. 511.org [17] is a service of the Metropolitan Transportation Commission, [18] and was designed by the transportation engineering company PB Farradyne, [19] a division of Parsons Brinckerhoff Quade & Douglas, [18] (later Telvent Farradyne). [20]
SR 89A Spur was originally established on July 16, 2004, over a small section of Fain Road immediately east of the intersection with SR 89A proper. [24] The route was extended over the remainder of Fain Road to SR 69 on August 18, 2011. [25] The road was originally two lanes wide but has since been widened to a four-lane divided highway. [26]
SH 71 (Bastrop Expressway)—proposed toll road in Austin. [129] SH 121/ SH 183 (North Tarrant Express)—proposed improvements are planned to include three general purpose lanes in each direction with three HOT lanes in each direction for a total of twelve lanes with frontage roads for future traffic volumes, located in the Fort Worth area. [130]
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.
There was significant local opposition in the 1960s and 1970s to expansion of the freeway system. [4] Because of this, by the time public opinion began to favor freeway expansion in the 1980s and 1990s, Phoenix freeways had to be funded primarily by local sales tax dollars rather than diminishing sources of federal money; newer freeways were, and continue to be, given state route designations ...
Media related to Roads in Arizona at Wikimedia Commons; Good Roads Everywhere: A History of Road Building in Arizona, including maps in the map PDF and appendix A; History of the Arizona State Highway Department, gives key dates and lengths of routes between 1927 and 1938 as well as a detailed history on the origins of the Arizona State Highway ...
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.