Below is a list and summary of the unconstructed
state highways in the
U.S. state
In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...
of
Arizona
Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a U.S. state, state in the Southwestern United States. It is the list of U.S. states and territories by area, 6th largest and the list of U.S. states and territories by population, 14 ...
. Some are currently proposed while the others have since been cancelled prior to being constructed.
State Route 30
State Route 30 (formerly State Route 801), also known as the I-10 Reliever, is a planned
state highway in the southwest parts of
Phoenix, Arizona
Phoenix ( ; nv, Hoozdo; es, Fénix or , yuf-x-wal, Banyà:nyuwá) is the capital and most populous city of the U.S. state of Arizona, with 1,608,139 residents as of 2020. It is the fifth-most populous city in the United States, and the o ...
and nearby suburbs. It will connect the southern terminus of
Loop 303
Arizona State Route 303 (SR 303) or Loop 303, also known as the Bob Stump Memorial Parkway (formerly the Estrella Freeway), is a freeway that serves the west part of the Phoenix metropolitan area. The freeway, originally a two-lane ...
with the South Mountain leg of
Loop 202. It is planned as a controlled-access freeway to relieve heavy traffic congestion experienced along
Interstate 10
Interstate 10 (I-10) is the southernmost cross-country highway in the American Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40. This freeway is part of the originally ...
in the area.
State Route 50
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, the freeway would have run east to west, connecting the future
State Route 51 and
Loop 101
Arizona State Route 101 (SR 101) or Loop 101 is a semi-beltway looping around the Phoenix Metropolitan Area in central Arizona. It connects several suburbs of Phoenix, including Tolleson, Glendale, Peoria, Scottsdale, Mesa, Tempe, and C ...
, while running roughly parallel to, and north of,
I-10
Interstate 10 (I-10) is the southernmost cross-country highway in the American Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40. This freeway is part of the originally p ...
in the vicinity of
Camelback Road. The proposed freeway was reassigned as SR 50 in 1987. As the proposed freeway would have crossed through largely developed land and densely populated neighborhoods, it proved to be both extremely expensive and highly unpopular. The route was eventually struck from state planning maps and all land acquired for right-of-way was subsequently sold, the funds being used to pay for other transportation projects.
U.S. Route 87
U.S. Route 87 (US 87) was a proposed extension of
US 87 into eastern Arizona. The proposal also included two split routes which would have been designated U.S. Route 87W (US 87W) and U.S. Route 87E (US 87E). The proposed US 87 was created by the
Tombstone, Arizona
Tombstone is a historic city in Cochise County, Arizona, United States, founded in 1877 by prospector Ed Schieffelin in what was then Pima County, Arizona Territory. It became one of the last boomtowns in the American frontier. The town gr ...
based Border-Sunshine Way Association after a meeting in
Tucson
, "(at the) base of the black ill
, nicknames = "The Old Pueblo", "Optics Valley", "America's biggest small town"
, image_map =
, mapsize = 260px
, map_caption = Interactive map ...
and was presented to the
Arizona State Highway Department
The Arizona Department of Transportation (ADOT, pronounced "A-Dot") is an Arizona state government agency charged with facilitating mobility within the state. In addition to managing the state's highway system, the agency is also involved with ...
on November 3, 1931. Outside Arizona the proposed extension of US 87 would have been extended from its southern terminus in
Rawlins, Wyoming
Rawlins is a city in Carbon County, Wyoming, Carbon County, Wyoming, United States. The population was 8,221 at the United States Census, 2020, 2020 census. It is the county seat of Carbon County. It was named for Union Army, Union General John Aa ...
through
Colorado
Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...
and
New Mexico
)
, population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano)
, seat = Santa Fe, New Mexico, Santa Fe
, LargestCity = Albuquerque, New Mexico, Albuquerque
, LargestMetro = Albuquerque metropolitan area, Tiguex
, Offi ...
to Arizona. This would have established concurrencies with
US 30,
US 40S,
US 50,
US 550,
US 450 and
US 66 as well as replacing
US 666 between
Cortez, Colorado
Cortez () is a home rule municipality that is the county seat and the most populous municipality of Montezuma County, Colorado, United States. The city population was 8,766 at the 2020 United States Census.
History
In 1886, the town was buil ...
and
Gallup, New Mexico
Zuni: ''Kalabwaki''
, settlement_type = City
, nickname = "Indian Capital of the World"
, motto =
, image_skyline = Gallup, New Mexico.jpg
, imagesize = 250px
, image_caption ...
.
US 87 would have entered Arizona from New Mexico on present day
State Route 61 near
Zuni, New Mexico
Zuni Pueblo (also Zuñi Pueblo, Zuni: ''Halona Idiwan’a'' meaning ‘Middle Place’) is a census-designated place (CDP) in McKinley County, New Mexico, United States. The population was 6,302 as of the 2010 Census. It is inhabited largely by ...
, running southwest to
St. Johns. It would have run concurrent with the original
US 70 between St. Johns and
Springerville, Arizona
Springerville is a town in Apache County, Arizona, United States, within the White Mountains. Its postal ZIP Code is 85938. As of the 2010 census, the population of the town was 1,961.
Springerville sits at an elevation of above sea level. ...
. From Springerville, it would have been concurrent with
US 60 heading east to
SR 71 (now
US 191), then would have replaced SR 71 between US 60 and
US 180 (the current US 70). US 87 would have been concurrent with US 180 west to
Safford, where it would have then replaced
SR 81 (now US 191) through
Willcox to a junction near
Elfrida. The proposed US 87W would have started from US 87 and US 87E near Elfrida, then would have taken Gleeson Road west through
Gleeson to Tombstone. US 87W would have had a
wrong-way concurrency
A concurrency in a road network is an instance of one physical roadway bearing two or more different route numbers. When two roadways share the same right-of-way, it is sometimes called a common section or commons. Other terminology for a concurre ...
with
US 80 from Tombstone to
SR 82. US 87W would have then replaced the entirety of SR 82 between Tombstone Junction and
Nogales, establishing a western terminus at US 89. US 87E would have replaced the remainder of SR 81 between Elfrida and
Douglas
Douglas may refer to:
People
* Douglas (given name)
* Douglas (surname)
Animals
* Douglas (parrot), macaw that starred as the parrot ''Rosalinda'' in Pippi Longstocking
* Douglas the camel, a camel in the Confederate Army in the American Civi ...
.
The Arizona State Highway Department approved the proposal in 1934 and tried to get US 87 extended into Arizona. The proposed extension of US 87 was ultimately unsuccessful and US 87 was not extended into Arizona by 1935. In an ironic twist, US 666 was extended into Arizona in 1942 along the previously proposed US 87 and US 87E to Douglas.
Just 11 years earlier, the US 87 proposal had attempted to replace all of US 666 between Colorado and New Mexico.
The Arizona State Highway Department tried a final time in 1943 to extend US 87 into Arizona and requested US 87 replace all of the newly extended US 666 south to Douglas. The attempt was once again unsuccessful, as by 1946, US 666 was still designated between New Mexico and Douglas.
U.S. Route 93T
U.S. Route 93T was a proposed temporary extension of US 93 following
US 66
U.S. Route 66 or U.S. Highway 66 (US 66 or Route 66) was one of the original highways in the United States Numbered Highway System. It was established on November 11, 1926, with road signs erected the following year. The h ...
and
US 89 from
Kingman to
Wickenburg
Wickenburg is a town in Maricopa and Yavapai counties, Arizona, United States. As of the 2020 census, the population of the town was 7,474, up from 6,363 in 2010.
History
The Wickenburg area, along with much of the Southwest, became part o ...
while the final route of US 93 was to be constructed through Wikieup. The idea was abandoned in 1937, the same year it was proposed. The proposal for US 93 to be extended past Kingman towards Phoenix was denied by the
AASHO
The American Association of State Highway and Transportation Officials (AASHTO) is a standards setting body which publishes specifications, test protocols, and guidelines that are used in highway design and construction throughout the United ...
also in 1937. It wouldn't be until 1965 that US 93 would exist south of Kingman.
State Route 176
State Route 176 was a proposed state highway in eastern central
Arizona
Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a U.S. state, state in the Southwestern United States. It is the list of U.S. states and territories by area, 6th largest and the list of U.S. states and territories by population, 14 ...
, that would have connected
I-10
Interstate 10 (I-10) is the southernmost cross-country highway in the American Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40. This freeway is part of the originally p ...
in
Benson and
SR 76 in
San Manuel. It was designated in 1967 but was never built, and was cancelled in 1970. The proposed route was added to SR 76. It would have followed the
San Pedro River on its entire length.
U.S. Route 193
U.S. Route 193 was a proposed U.S. Highway highway that would have taken over the route of
SR 87,
SR 187 and
SR 84 between
Sacaton and
Picacho, via
Casa Grande
, settlement_type = City
, image_skyline = Casa Grande-Casa Grande Union High School-1920-2.jpg
, imagesize = 250px
, image_caption = Historic Casa Grande Union High School which now serves as the ...
. It was proposed by the Arizona Highway Department as a branch of a proposed extension of US 93 at the time. By 1937, the route was briefly redesignated US 93A before the proposal was subsequently dropped. The proposed extension of mainline US 93 was denied by the
AASHO
The American Association of State Highway and Transportation Officials (AASHTO) is a standards setting body which publishes specifications, test protocols, and guidelines that are used in highway design and construction throughout the United ...
the same year.
State Route 380
State Route 380 was a proposed state route that was never constructed in the eastern part of the state of
Arizona
Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a U.S. state, state in the Southwestern United States. It is the list of U.S. states and territories by area, 6th largest and the list of U.S. states and territories by population, 14 ...
. It was proposed, starting in the town of
St. Johns and would have ended at the
New Mexico
)
, population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano)
, seat = Santa Fe, New Mexico, Santa Fe
, LargestCity = Albuquerque, New Mexico, Albuquerque
, LargestMetro = Albuquerque metropolitan area, Tiguex
, Offi ...
state line. It shows up on some state maps starting in 1970, but was never built. The road proposed is currently a dirt ranch road. In St. John's, it would have begun at a junction with
U.S. Route 180, a child of
U.S. Route 80. It would have connected with the recently cancelled
NM 191.
State Route 487
State Route 487 was a state route that never materialized in the north-central part of
Arizona
Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a U.S. state, state in the Southwestern United States. It is the list of U.S. states and territories by area, 6th largest and the list of U.S. states and territories by population, 14 ...
. The
Arizona Department of Transportation
The Arizona Department of Transportation (ADOT, pronounced "A-Dot") is an Arizona state government agency charged with facilitating mobility within the state. In addition to managing the state's highway system, the agency is also involved with pu ...
added it the state highway system in 1967 between
Flagstaff and
State Route 87 near Happy Jack. It did show on state maps during the early 1970s, but the route disappeared in the mid to late '70s. The road currently exists today as
Coconino County Road 3.
Interstate 710
Interstate 710 (I-710) was proposed to follow the current alignment of the Kino Parkway, an at-grade parkway, between Broadway Road and
I-10
Interstate 10 (I-10) is the southernmost cross-country highway in the American Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40. This freeway is part of the originally p ...
in
Tucson, Arizona
, "(at the) base of the black ill
, nicknames = "The Old Pueblo", "Optics Valley", "America's biggest small town"
, image_map =
, mapsize = 260px
, map_caption = Interactive ...
, but it was never built. This freeway, if built, would have served the downtown area, the
University of Arizona
The University of Arizona (Arizona, U of A, UArizona, or UA) is a public land-grant research university in Tucson, Arizona. Founded in 1885 by the 13th Arizona Territorial Legislature, it was the first university in the Arizona Territory. ...
campus, and the industrial area between the railroad and I-10; an extension to
Tucson International Airport
Tucson International Airport is a civil-military airport owned by the City of Tucson
south of downtown Tucson, in Pima County, Arizona, United States. It is the second busiest airport in Arizona, after Phoenix Sky Harbor International Airp ...
. It first appeared on a Tucson map in 1971.
Strong community opposition to freeways in Tucson was a major reason for cancellation of the project on April 16, 1982; the Tucson area has long been opposed to the rapid
urban sprawl
Urban sprawl (also known as suburban sprawl or urban encroachment) is defined as "the spreading of urban developments (such as houses and shopping centers) on undeveloped land near a city." Urban sprawl has been described as the unrestricted growt ...
since.
US Bicycle Route System
Future
US Bicycle Routes in Arizona include USBR 66, 70, 79, and 90.



References
External links
Arizona Roads
{{DEFAULTSORT:Unconstructed state routes in Arizona
State highways in Arizona
Cancelled highway projects in the United States