Interstate 19 (I-19) is a north–south Interstate Highway located entirely within the US state of Arizona. I-19 travels from Nogales, roughly 90 meters (300 ft) from the Mexican border, to Tucson, at I-10. The highway also travels through the cities of Rio Rico, Green Valley, and Sahuarita.
U.S. Route 93 (US 93) is a major north–south numbered highway running from US 60 in Wickenburg, Arizona to the Canadian border north of Eureka, Montana, where the roadway continues into Roosville, British Columbia as Highway 93. It passes through Kingman, Arizona; Las Vegas, Nevada; Twin Falls, Idaho; and Missoula, Montana.
State Route 79, also known as the Pinal Pioneer Parkway, is a 58.40 mi (93.99 km) long state highway in the U.S. state of Arizona. It serves as the main route through the town of Florence, which is also the county seat of Pinal County. Although the highway has been part of the state highway system since at least 1926, it was not designated as SR 79 until 1992. The highway was previously a section of U.S. Route 80 and U.S. Route 89 between Phoenix and Tucson, until both highways were decommissioned in 1977 and 1992 respectively. SR 79 is also the only state highway in Arizona that has a business route, which is SR 79 Business through downtown Florence. SR 79 is also notable for being the location where cowboy western actor Tom Mix died in a car accident on October 14, 1940.
Interstate 11 (I-11) is an Interstate Highway that currently runs for 22.8 miles (36.7 km) on a predominantly northwest–southeast alignment in the US state of Nevada, running concurrently with US Route 93 (US 93) between the Arizona state line and Henderson. The freeway is tentatively planned to run from Nogales, Arizona, to the vicinity of Reno, Nevada, generally following the current routes of I-19, I-10, US 93, and US 95. Planners anticipate upgrading two existing highway segments to carry future I-11: US 93 in Arizona from Wickenburg to the Nevada state line on the Mike O'Callaghan–Pat Tillman Memorial Bridge over the Colorado River, and US 95 in Nevada from the Las Vegas Valley to Tonopah. In 2022, officials in Nevada announced that they planned to extend I-11 through the Las Vegas Valley along the existing alignments of I-515/US 93/US 95 to downtown Las Vegas, then running concurrently with US 95 northwest to SR 157. An exact alignment for I-11 has yet to be determined outside of these sections; however, a number of corridor alternatives have been identified for further study and refinement.
The CANAMEX corridor is a series of improvements to freeways and other transportation infrastructure linking Canada to Mexico through the United States. The corridor was established under the North American Free Trade Agreement. Currently the corridor is defined by a series of highways. However, the corridor is also proposed for use by railroads and fiber optic telecommunications infrastructure.
In the U.S. state of Arizona, Interstate 10 (I‑10), the major east–west Interstate Highway in the United States Sun Belt, runs east from California, enters Arizona near the town of Ehrenberg and continues through Phoenix and Tucson and exits at the border with New Mexico near San Simon. The highway also runs through the cities of Casa Grande, Eloy, and Marana. Segments of the highway are referred to as either the Papago Freeway, Inner Loop, or Maricopa Freeway within the Phoenix area and the Pearl Harbor Memorial Highway outside metro Phoenix.
State Route 84, also known as SR 84, is a 41-mile (66 km) east–west highway in south-central Arizona, with its western terminus at Exit 151 of Interstate 8 and its eastern signed terminus at its junction with State Route 387 and State Route 287 in Casa Grande. An unsigned section, which is mostly maintained by local governments, runs from the SR 287 and SR 387 junction southeast through Arizola and Eloy. East of Eloy, SR 84 is concurrent with the beginning 0.87 miles (1.40 km) of State Route 87 just north of Interstate 10 near Picacho.
Arizona State Route 74 (SR 74), locally known as the Carefree Highway, is a state highway in central Arizona that stretches east to west from its junction with U.S. Route 60 (US 60) just south of Wickenburg to its junction with Interstate 17 (I-17) in North Phoenix. It serves Lake Pleasant Regional Park and serves as a northern bypass around the often congested stretches of US 60 through the northwest suburbs of the Phoenix metropolitan area. From end to end, it is 30.4 miles (48.9 km) long.
State Route 77 is a state highway in Arizona that traverses much of the state's length, stretching from its northern terminus at the boundary of the Navajo Nation north of Holbrook to its junction with I-10 in Tucson.
U.S. Route 60 (US 60) is an east–west United States Highway within Arizona. The highway runs for 369 miles (594 km) from a junction with Interstate 10 near Quartzsite to the New Mexico State Line near Springerville. As it crosses the state, US 60 overlaps at various points: I-17, I-10, SR 77, SR 260, US 191, and US 180. Between Wickenburg and Phoenix, the route is known as Grand Avenue. From Tempe to Apache Junction, it is known as the Superstition Freeway.
The transportation system of Arizona comprises car, rail, air, bus, and bicycle transport.
U.S. Route 93 in the state of Arizona is a United States Numbered Highway that begins in Wickenburg and heads north to the Nevada state line at the Mike O'Callaghan–Pat Tillman Memorial Bridge.
U.S. Route 89 in the U.S. state of Arizona is a U.S. Highway that begins in Flagstaff and heads north to the Utah border northwest of Page.
The metropolitan area of Phoenix in the U.S. state of Arizona contains one of the nation's largest and fastest-growing freeway systems, with over 1,405 lane miles (2,261 km) as of 2005.
In the U.S. state of Nevada, U.S. Route 93 is a major United States Numbered Highway traversing the eastern edge of the state. The highway connects the Las Vegas area to the Great Basin National Park, and provides further connections to Ely and Wells. US 93 also provides the majority of the most direct connection from the major metropolitan areas of Las Vegas and Phoenix to the Boise, Idaho metropolitan area.
Below is a list and summary of the former state highways.
Below is a list and summary of the unconstructed state highways in the U.S. state of Arizona. Some are currently proposed while the others have since been cancelled prior to being constructed.
U.S. Route 80 (US 80) also known as the Ocean-to-Ocean Highway, the Broadway of America and the Jefferson Davis Memorial Highway was a major transcontinental highway that existed in the U.S. state of Arizona from November 11, 1926, to October 6, 1989. At its peak, US 80 traveled from the California border in Yuma to the New Mexico state line near Lordsburg. US 80 was an important highway in the development of Arizona's car culture. Like its northern counterpart, US 66, the popularity of travel along US 80 helped lead to the establishment of many unique road side businesses and attractions, including many iconic motor hotels and restaurants. US 80 was a particularly long highway, reaching a length of almost 500 miles (800 km) within the state of Arizona alone for most of the route's existence.
Fed. 15 in Nogales 
US 89 / US 93 near Wickenburg
US 66 in Kingman)
