|Purple Heart Trail|
I-40 highlighted in red
|Maintained by ADOT|
|Length||359.11 mi (577.93 km)|
|Counties||Mohave, Yavapai, Coconino, Navajo, Apache|
Interstate 40 (I-40) is an east–west Interstate Highway that has a 359.11-mile (577.93 km) section in the U.S. state of Arizona, connecting sections in California and New Mexico. The section throughout Arizona is also known as the Purple Heart Trail. It enters Arizona from the west at a crossing of the Colorado River southwest of Kingman. It travels eastward across the northern portion of the state connecting the cities of Kingman, Ash Fork, Williams, Flagstaff, Winslow, and Holbrook. I-40 continues into New Mexico, heading to Albuquerque. The highway has major junctions with U.S. Route 93 (US 93) — the main highway connecting Phoenix and Las Vegas, Nevada — in Kingman and again approximately 22 miles (35 km) to the east, and Interstate 17 — the freeway linking Phoenix to northern Arizona — in Flagstaff.
In the United States, a state is a constituent political entity, of which there are currently 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory and shares its sovereignty with the federal government. Due to this shared sovereignty, Americans are citizens both of the federal republic and of the state in which they reside. State citizenship and residency are flexible, and no government approval is required to move between states, except for persons restricted by certain types of court orders. Four states use the term commonwealth rather than state in their full official names.
Arizona is a state in the southwestern region of the United States. It is also part of the Western and the Mountain states. It is the sixth largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona shares the Four Corners region with Utah, Colorado, and New Mexico; its other neighboring states are Nevada and California to the west and the Mexican states of Sonora and Baja California to the south and southwest.
California is a state in the Pacific Region of the United States. With 39.6 million residents, California is the most populous U.S. state and the third-largest by area. The state capital is Sacramento. The Greater Los Angeles Area and the San Francisco Bay Area are the nation's second- and fifth-most populous urban regions, with 18.7 million and 9.7 million residents respectively. Los Angeles is California's most populous city, and the country's second-most populous, after New York City. California also has the nation's most populous county, Los Angeles County, and its largest county by area, San Bernardino County. The City and County of San Francisco is both the country's second-most densely populated major city after New York City and the fifth-most densely populated county, behind only four of the five New York City boroughs.
For the majority of its routing through Arizona, I-40 follows the historic alignment of U.S. Route 66. The lone exception is a stretch between Kingman and Ash Fork where US 66 took a more northerly, less direct route that is now State Route 66. Construction of I-40 was ongoing in the 1960s and 1970s and reached completion in 1984. With the completion of I-40 in 1984, the entire routing of US 66 had been bypassed by Interstate Highways which led to its decertification a year later in 1985.
U.S. Route 66 covered 401 miles (645 km) as part of a former United States Numbered Highway in the state of Arizona. The highway ran from west to east, starting in Needles, California, through Kingman and Seligman to the New Mexico state line as part of the historic US 66 from Santa Monica, California, to Chicago, Illinois. The highway was decommissioned in 1985, although portions remain as State Route 66 (SR 66).
Ash Fork is a census-designated place (CDP) in Yavapai County, Arizona. The population was 457 at the 2000 U.S. Census.
State Route 66 is a surface road in the U.S. state of Arizona in Mohave and Coconino Counties. In 1914, the road was designated "National Old Trails Highway" but in 1926 was re-designated as U.S. Route 66. In 1985, U.S. Route 66 was dropped from the highway system. Parts of the highway were either absorbed into I-40, turned over to the state, or turned over to Yavapai County.
I-40 enters Arizona from California at a bridge that crosses the Colorado River at Topock in Mohave County. It heads east from Topock and begins to curve towards the north at Franconia, completing the curve at Yucca. The interstate continues to head north until it reaches Kingman. In this city, I-40 has a junction with US 93 at exit 48. US 93 heads towards the northwest from this interchange to Hoover Dam and Las Vegas. US 93 south begins to run concurrently with I-40 east as they both swing eastward through Kingman. The two later separate at exit 71, as US 93 heads towards the south towards Phoenix while I-40 continues east toward Flagstaff. Along the way, I-40 passes through the town of Seligman, then at Ash Fork it meets State Route 89, the former U.S. Highway that heads south to Prescott. Next, it passes through Williams, where it has an interchange with SR 64 (exit 165), which heads north towards Grand Canyon National Park. I-40 continues to the east to Flagstaff, where it has a major junction with I-17 at exit 195. I-17 heads south from this interchange to Phoenix.
The Colorado River is one of the principal rivers in the Southwestern United States and northern Mexico. The 1,450-mile-long (2,330 km) river drains an expansive, arid watershed that encompasses parts of seven U.S. and two Mexican states. Starting in the central Rocky Mountains of Colorado, the river flows generally southwest across the Colorado Plateau and through the Grand Canyon before reaching Lake Mead on the Arizona–Nevada border, where it turns south toward the international border. After entering Mexico, the Colorado approaches the mostly dry Colorado River Delta at the tip of the Gulf of California between Baja California and Sonora.
Topock ( ) is a small unincorporated community in Mohave County, Arizona. Topock has a ZIP Code of 86436; in 2000, the population of the 86436 ZCTA was 1,790.
Mohave County is in the northwestern corner of the U.S. state of Arizona. As of the 2010 census, its population was 200,186. The county seat is Kingman, and the largest city is Lake Havasu City.
East of Flagstaff, I-40 heads towards the east-southeast direction as it goes through the town of Winslow. It continues towards this direction until it reaches Holbrook, where it curves towards the northeast. Along this stretch, it passes through Petrified Forest National Park and continues to the northeast, passing through Chambers, and enters the Navajo Nation. The highway still continues to the northeast to the New Mexico border southwest of Gallup, New Mexico as it continues on towards Albuquerque.
Winslow is a city in Navajo County, Arizona, in the United States. According to the 2010 census, the population of the city is 9,655. It is located approximately 75 miles (121 km) SE of Flagstaff, 320 miles (510 km) W of Albuquerque, New Mexico, and 329 miles (529 km) SE of Las Vegas.
Holbrook is a city in Navajo County, Arizona, United States. According to the 2010 census, the population of the city was 5,053. The city is the county seat of Navajo County.
Petrified Forest National Park is an American national park in Navajo and Apache counties in northeastern Arizona. Named for its large deposits of petrified wood, the fee area of the park covers about 230 square miles, encompassing semi-desert shrub steppe as well as highly eroded and colorful badlands. The park's headquarters is about 26 miles (42 km) east of Holbrook along Interstate 40 (I-40), which parallels the BNSF Railway's Southern Transcon, the Puerco River, and historic U.S. Route 66, all crossing the park roughly east–west. The site, the northern part of which extends into the Painted Desert, was declared a national monument in 1906 and a national park in 1962. The park received 644,922 recreational visitors in 2018. Typical visitor activities include sightseeing, photography, hiking, and backpacking.
With the exception of a stretch between Kingman and Flagstaff, I-40 directly replaced the famed US 66 across northern Arizona. Where possible, US 66 was upgraded to Interstate standards to become I-40 directly. Exceptions to this were through the central business districts of the cities and towns that US 66 passed through, and I-40 had to be built as a bypass outside the cities. On October 26, 1984, after the last section of I-40 was completed in Williams, US 66 was removed from the state highway system of Arizona. The portions through cities that did not overlap I-40 would become business loops of I-40.
The routing of a road near the current corridor of I-40 in Arizona was first surveyed and built between 1857 and 1859. Lt. Edward Beale and his soldiers built the road along the 35th parallel that would come to be known as the Beale Wagon Road from Fort Smith, Arkansas to the Colorado River to serve as a military wagon road. The road was a popular route for immigrants during the 1860s and 1870s until the transcontinental railroad was built across northern Arizona in the 1880s. In the early 1900s, the road became part of the National Old Trails Road, a transcontinental route from Baltimore, Maryland to California, and the National Park to Park Highway, an auto trail linking the national parks of the west.
Edward Fitzgerald "Ned" Beale was a national figure in 19th century America. He was naval officer, military general, explorer, frontiersman, Indian affairs superintendent, California rancher, diplomat, and friend of Kit Carson, Buffalo Bill Cody and Ulysses S. Grant. He fought in the Mexican–American War, emerging as a hero of the Battle of San Pasqual in 1846. He achieved national fame in 1848 in carrying to the east the first gold samples from California, contributing to the gold rush.
Fort Smith is the second-largest city in Arkansas and one of the two county seats of Sebastian County. As of the 2010 Census, the population was 86,209. With an estimated population of 88,037 in 2017, it is the principal city of the Fort Smith, Arkansas-Oklahoma Metropolitan Statistical Area, a region of 298,592 residents that encompasses the Arkansas counties of Crawford, Franklin, and Sebastian, and the Oklahoma counties of Le Flore and Sequoyah.
A transcontinental railroad is a contiguous network of railroad trackage that crosses a continental land mass with terminals at different oceans or continental borders. Such networks can be via the tracks of either a single railroad, or over those owned or controlled by multiple railway companies along a continuous route. Although Europe is crisscrossed by railways, the railroads within Europe are usually not considered transcontinental, with the possible exception of the historic Orient Express. Transcontinental railroads helped open up unpopulated interior regions of continents to exploration and settlement that would not otherwise have been feasible. In many cases they also formed the backbones of cross-country passenger and freight transportation networks.
In the 1920s, as a nationwide system of highways called the United States Numbered Highways was being developed, the route through was given the designation of U.S. Route 60. This designation was controversial since designations that are multiples of 10 are assigned to transcontinental east–west routes and this route was a diagonal route from Chicago to Los Angeles. As a compromise to states east of Chicago that felt US 60 should go through their state, a different route was given the number 60, while the route from Chicago to Los Angeles was given the number 66.
By 1927, the routing of US 66 through Arizona had been laid out, but none of it had been paved yet.By 1935, nearly the entire route had been paved, with the lone exceptions being a short stretch northeast of Valentine and a stretch between Peach Springs and Seligman. By 1938, the entire route in Arizona had been paved. In 1953, US 66 was realigned between the California border and Kingman to an alignment to the southeast to avoid the mountain curves and grades of the original alignment. By 1961, several sections of the highway had been expanded to a four-lane divided highway in anticipation of the coming Interstate Highway. Four-lane sections included a section near Ash Fork, another section east of Winslow and a section east of Holbrook near the Petrified Forest National Monument.
In Flagstaff, several different alternatives were considered as a potential routing of the new Interstate through the area. The alternatives consisted of a routing north of downtown, south of downtown, through downtown along the Santa Fe Railroad right-of-way near the alignment of US 66, and a more elaborate alternative of a routing above downtown on a long overpass. In January 1959, the Flagstaff Chamber of Commerce recommended to the Bureau of Public Roads that the route south of downtown be used which was approved by the Flagstaff City Council and the Board of Supervisors for Coconino County. This recommendation was accepted and would become the planned routing of I-40 in Flagstaff.Business owners along US 66 were opposed to this routing as it would draw motorists away from main through route of the time, US 66. As a result, they created the No By-Pass Committee and sent a proposal to the Chamber of Commerce’s Roads and Highways Committee to conduct a study of the feasibility of a route for I-40 through downtown along the Santa Fe railroad right-of-way. The Committee sent an inquiry to the railroad concerning the proposal. The railroad rejected the proposed rerouting of their main rail lines citing that it would result in worse grades than what currently exists and in order to reduce those grades, considerable lengthening of the rail line would be required. With a routing through town now out of the question, the business owners along US 66 drafted a city ordinance, known as Initiative 200, that was filed with the city of Flagstaff in November 1959 to appear on the general election ballot in March 1960. The ordinance would in effect ban all new commercial businesses on I-40, all routes leading from I-40 to US 66, and the area between I-40 and US 66. In a record voter turnout, voters overwhelmingly voted against the ordinance by a vote of 2,280 to 556.
In 1965, the routing of I-40 west of Kingman was being reconsidered from the planned route through Needles, California to a route to the north passing through Searchlight in southern Nevada and connecting with I-15 further north of its present connection with I-15. The rationale for the proposal was that it would be an overall shorter route and would cost much less to construct.The proposal was met with stiff opposition including all four U.S. senators from California and Arizona sending the Secretary of Commerce letters requesting that the routing through Needles be retained. This proposal was eventually abandoned in 1966 and the routing through Needles was kept.
The construction of the 360-mile (579 km) route of I-40 across Arizona took nearly 25 years to complete with the last segment being completed in 1984, much longer than the ambitious goal of finishing by 1972. By the end of 1960, 15 miles (24 km) had been completed with an additional 23 miles (37 km) being worked on. In 1964, construction was still on schedule with 58 miles (93 km) complete and an additional 71 miles (114 km) under construction. Funding was becoming an issue at this time as the state lacked the available funds to stay on pace with a 1972 completion goal. By 1967, Arizona had completed almost half of the highway with 155.3 miles (249.9 km) complete and another 82.4 miles (133 km) under construction. In 1968, the bypass around Flagstaff was complete with three interchanges, two at each end of where US 66 split off from I-40 to enter the city and one at the I-17 interchange. An additional interchange at Butler Avenue was completed a year later. One of the big improvements of I-40 over US 66 was the construction of the segment between Kingman and Ash Fork. The 94-mile (151 km) section is a more direct route between the two cities and travels as far as 20 miles (32 km) south of the US 66 alignment, bypassing Hackberry and Peach Springs and creating ghost towns. Construction of the $69.1 million segment was also to be a much safer route as the US 66 alignment had one of the highest fatality rates of any section of highway in Arizona. This section of the Interstate was complete in 1975. Construction of the $7.7 million bypass around Winslow began in 1977. I-40 was completed in Arizona in 1984, with the completion of a 6-mile (10 km) section in Williams. This was also the last section of US 66 to be bypassed by the Interstate, which led to it being decertified by the American Association of State Highway and Transportation Officials (AASHTO) the following year.
|Colorado River||0.00||0.00||Continuation into California|
|Mohave||Topock||0.55||0.89||1||To SR 95 north|
|||2.99||4.81||2||Needle Mountain Road|
|||20.14||32.41||20||Santa Fe Ranch Road|
|Yucca||25.19||40.54||25||Alamo Road||No eastbound entrance|
|26.18||42.13||26||Proving Ground Road||No westbound entrance|
|||28.75||46.27||28||Old Trails Road|
|||44.32||71.33||44||Former US 66 east|
|Kingman||48.86||78.63||48||West end of US 93 overlap; Beale St. is former US 466|
|51.69||83.19||51||Stockton Hill Road|
|||59.21||95.29||59||DW Ranch Road|
|||66.02||106.25||66||Blake Ranch Road|
|||71.52||115.10||71||East end of US 93 overlap|
|||78.90||126.98||79||Silver Springs Road|
|||87.01||140.03||87||Willows Ranch Road|
|||91.12||146.64||91||Fort Rock Road|
|Yavapai||||95.45||153.61||96||Cross Mountain Road|
|||109.07||175.53||109||Anvil Rock Road|
|Seligman||120.49||193.91||121||Former US 66 east|
|122.72||197.50||123||Former US 66 west|
|||139.28||224.15||139||Former US 66 west|
|Ash Fork||144.37||232.34||144||Former US 66 east|
|145.69||234.47||146||Former US 66 west; former US 89 south|
|Coconino||||147.68||237.67||148||County Line Road|
|||148.57||239.10||149||Monte Carlo Road|
|||157.20||252.99||157||Devil Dog Road|
|Williams||161.38||259.72||161||Former US 66 east; former US 89 north|
|162.95||262.24||163||Williams, Grand Canyon National Park|
|165.41||266.20||165||Former US 66 west; former US 89 south|
|167.09||268.91||167||Garland Prairie Road / Circle Pines Road|
|||171.10||275.36||171||Pittman Valley Road / Deer Farm Road|
|||183.66||295.57||184||Camp Navajo||Proposed interchange|
|||184.68||297.21||185||Transwestern Road – Bellemont|
|||190.10||305.94||190||A-1 Mountain Road|
|||191.26||307.80||191||Former US 66 east; former US 89 north; access to United States Naval Observatory Flagstaff Station|
|||192.12||309.19||192||Flagstaff Ranch Road|
|Flagstaff||193.47||311.36||194||Woody Mountain Road||Proposed interchange|
|195||I-17 exits 340A-B; northern terminus of I-17|
|196.70||316.56||197||Lone Tree Road||Proposed interchange on new alignment east of current Lone Tree Rd. overpass|
|200.65||322.91||201||West end of US 180 overlap; eastbound signed as "US 89 north – Page" only|
|204.42||328.98||204||Former US 66 west|
|||224.60||361.46||225||Buffalo Range Road|
|||233.43||375.67||233||Meteor Crater Road|
|||239.22||384.99||239||Meteor City Road|
|||244.94||394.19||245||West end of SR 99 overlap|
|Navajo||Winslow||251.58||404.88||252||East end of SR 99 overlap; Former I-40 BL east|
|253.08||407.29||253||North Park Drive|
|255.21||410.72||255||Transcon Lane||Former I-40 BL west|
|Joseph City||274.19||441.27||274||Former US 66 east|
|276.55||445.06||277||Former US 66 west|
|||280.13||450.83||280||Hunt Road / Geronimo Road|
|||283.13||455.65||283||Perkins Valley Road|
|Holbrook||284.67||458.13||285||East end of US 180 overlap; Former US 66 east|
|286.38||460.88||286||West end of SR 77 overlap; Former US 66; Historic US 66 is unsigned at this exit|
|289.00||465.10||289||Former US 66 west|
|||292.32||470.44||292||East end of SR 77 overlap|
|||294.03||473.20||294||Sun Valley Road|
|Apache||Petrified Forest NP||311.06||500.60||311||Petrified Forest National Park|
|Chambers||333.04||535.98||333||West end of US 191 overlap|
|Sanders||339.00||545.57||339||East end of US 191 overlap; former US 666 south|
|||346.05||556.91||346||Pine Springs Road|
|||347.65||559.49||348||St. Anselm Road – Houck|
|Lupton||358.69||577.26||359||Grants Road – Rest Area||Former US 66 east; Rest Area not signed eastbound|
|||359.11||577.93||Continuation into New Mexico|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
Interstate 15 (I-15) is a major Interstate Highway in the western United States. I-15 begins near the Mexico–US border in San Diego County and stretches north to Alberta, Canada, passing through the states of California, Nevada, Arizona, Utah, Idaho, and Montana. The interstate serves the cities of San Diego, Las Vegas, St. George, Provo, Salt Lake City, Ogden, Pocatello, Idaho Falls, Butte, Helena, and Great Falls. It also passes close to the urban areas of Orange County, California and Los Angeles County, California. The stretches of I-15 in Idaho, Utah, and Arizona have been designated as the "Veterans Memorial Highway". The southern end is at a junction with I-8 and State Route 15 in San Diego, and the northern end is at a connection with Alberta Highway 4 at the Sweetgrass–Coutts Border Crossing.
Interstate 17 (I-17) is an Interstate Highway located entirely within the U.S. state of Arizona. I-17's southern terminus lies within Phoenix, at Interstate 10, and its northern terminus is in Flagstaff, at Interstate 40. The majority of I-17 is known as the Arizona Veterans Highway. In the Phoenix metropolitan area, it is mostly known as the Black Canyon Freeway, however the southern 4.16 miles (6.69 km) is part of the Maricopa Freeway. The portion of the highway south of Cordes Lakes was built along the alignment of SR 69, while the northern part was built along old SR 79's alignment. I-17 is one of the most scenic Interstate Highways as it gains more than a mile in altitude between Phoenix at 1,117 feet (340 m) and Flagstaff at 7,000 feet (2,100 m). The highway features several scenic view exits along its route that overlook the many mountains and valleys found in northern Arizona.
Interstate 40 (I-40) is a major east-west Interstate Highway running through the south-central portion of the United States generally north of I-10, I-20 and I-30 but south of I-70. The western end is at I-15 in Barstow, California; its eastern end is at a concurrency of U.S. Route 117 (US 117) and North Carolina Highway 132 in Wilmington, North Carolina. It is the third-longest Interstate Highway in the United States, behind I-80 and I-90. Much of the western part of I-40, from Oklahoma City to Barstow parallels or overlays the historic US 66, east of Oklahoma City the route generally parallels US 64 and US 70. I-40 runs through many major cities including Albuquerque, New Mexico; Amarillo, Texas; Oklahoma City, Oklahoma; Little Rock, Arkansas; Memphis, Tennessee; Nashville, Tennessee; Knoxville, Tennessee; Greensboro, North Carolina; and Raleigh, North Carolina.
U.S. Route 180 is an east–west United States highway. Like many three-digit routes, US 180 no longer meets its "parent", US 80. US 80 was decommissioned west of Mesquite, Texas, and was replaced in Texas by Interstate 20 and Interstate 10 resulting in U.S. 180 being longer than U.S. 80. The highway's eastern terminus is in Hudson Oaks, Texas, at an intersection with Interstate 20. Its western terminus is unclear. Signage at an intersection with State Route 64 in Valle, Arizona 40 miles (64 km) northwest of Flagstaff indicates that the route ends at SR 64, which is consistent with the AASHTO U.S. Highway logs. However, many maps continue the US 180 designation to the south rim of the Grand Canyon at Grand Canyon Village. Signage at the SR 64 intersection as late as 2011 indicated that US 180 continues north concurrent with the route. However, no signage along the route exists past this intersection until SR 64 turns east towards Cameron, Arizona. At this intersection, signage makes no mention of US 180 nor is there any mention at the terminus of SR 64 at US 89.
U.S. Route 60 (US 60) is an east–west United States highway, traveling 2,670 mi (4,300 km) from southwestern Arizona to the Atlantic coast in Virginia. Despite the final "0" in its number, indicating a transcontinental designation, the 1926 route formerly ended in Springfield, Missouri, at its intersection with the major US 66. In fact, US 66 was almost given the US 60 number.
Interstate 11 (I-11) is a north-south Interstate Highway tentatively planned to run from Nogales, Arizona, to Reno, Nevada, along the current routes of I-19, I-10, US 93 and US 95. Currently, the only open section of I-11 is a 22.845-mile-long (36.765 km) freeway running predominantly northwest-southeast in the U.S. state of Nevada that currently follows U.S. Route 93 (US 93) and U.S. Route 95 (US 95) between the Arizona state line and Henderson. The bulk of the route is still in the early discussion and planning stages. Except for the portion between Wickenburg, Arizona to Hoover Dam, which will run on an upgraded US 93, an exact route for I-11 has yet to be determined. A number of corridor alternatives have been identified for further study and refinement.
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.
In the U.S. state of Texas, Interstate 40 runs west–east through the panhandle in the northwest part of the state. The only large city it passes through is Amarillo, where it meets the north end of Interstate 27.
Corridor Q is a highway in the U.S. states of Kentucky, Virginia, and West Virginia. It is part of the Appalachian Development Highway System and U.S. Route 460. Corridor Q runs from Corridor B near Pikeville, Kentucky easterly to Interstate 81 in Christiansburg, Virginia.
Arizona State Route 93, abbreviated SR 93, was a state highway in Arizona that existed from 1946 to 1991. The route was co-signed with other highways along nearly all of its route from Kingman to the border at Nogales. SR 93 was the original designation for the highway from Kingman to Wickenburg, which was built in 1946. In 1965, the northern terminus of the state route was moved south to an unnamed desert junction with U.S. Route 89 just north of Wickenburg, and the southern terminus of U.S. Route 93 was moved south to the US 89 junction. The Arizona Highway Department sought U.S. Highway status for SR 93 across the rest of the state, but the proposal was never granted by AASHTO. On December 17, 1984, the SR 93 designation was removed south of the Grand Avenue/Van Buren Street/7th Avenue intersection in Phoenix. The route was completely decommissioned in 1991.
The transportation system of Arizona comprises rail, air, bus, car and bicycle transport.
Interstate 40 (I-40), a major east–west route of the Interstate Highway System, runs east–west through Albuquerque in the U.S. state of New Mexico. It is the direct replacement for the historic U.S. Highway 66 (US 66).
In the U.S. state of Arizona, U.S. Route 93 is a U.S. Highway that begins in Wickenburg and heads north to the Nevada state line at the Mike O'Callaghan–Pat Tillman Memorial Bridge.
In the U.S. state of Arizona, U.S. Route 89 is a U.S. Highway that begins in Flagstaff and heads north to the Utah border northwest of Page.
Interstate 15 (I-15) is an Interstate Highway, running from San Diego, California, United States, to the Canada–US border, through Mohave County in northwest Arizona. Despite being isolated from the rest of Arizona, in the remote Arizona Strip, and short in length at 29.43 miles (47.36 km), it remains notable for its scenic passage through the Virgin River Gorge. The highway heads in a northeasterly direction from the Nevada border northeast of Mesquite, Nevada, to the Utah border southwest of St. George, Utah.
In the U.S. state of Nevada, U.S. Route 93 is a major United States 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 with a final connection to Boise via Interstate 84 from Twin Falls, Idaho.
Interstate business routes are roads connecting a central or commercial district of a city or town with an Interstate bypass. These roads typically follow along local streets often along a former U.S. route or state highway that had been replaced by an Interstate. Interstate business route reassurance markers are signed as either loops or spurs using a green shield shaped and numbered like the shield of the parent Interstate highway.