Wikipedia

Interstate 10 in Arizona

(Redirected from Inner Loop (Phoenix))

This article is about the section of Interstate 10 in Arizona. For the entire route, see Interstate 10.

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.

Interstate 10 marker
Interstate 10
Pearl Harbor Memorial Highway
Map
I-10 highlighted in red
Route information
Maintained by ADOT
Length391.99 mi[1] (630.85 km)
Existed1960–present
HistoryFirst section completed in 1960; Last section opened in 1990.
NHSEntire route
Major junctions
West end I-10 / US 95 at California state line near Blythe, CA
Major intersections
East end I-10 at New Mexico state line
Location
CountryUnited States
StateArizona
CountiesLa Paz, Maricopa, Pinal, Pima, Cochise
Highway system
  • Arizona State Highway System
← I-8→ I-15

Route description

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I-10 through Arizona is designated a "Purple Heart Trail", after the Purple Heart, the award received by American soldiers wounded in combat.[2] The western terminus is located at the California border at the Colorado River in La Paz County where I-10 continues westward into California towards Los Angeles. Here, the same physical road is signed as both I‑10 and U.S. Route 95 (US 95).

Western segment

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The highway runs east by northeast through Ehrenberg, the Dome Rock Mountains, and Quartzsite and then turns to an east by southeast orientation just before the junction for US 60. It continues this path entering Maricopa County and the Phoenix Metro area. The route turns east by northeast again at the junction for State Route 85 (SR 85) northwest of downtown Buckeye, and turns due east at Verrado Way (exit 120). Here, the speed limit drops from 75 to 65 mph (121 to 105 km/h). The landscape by this point is largely urban.

Papago Freeway

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From there, I-10 traverses through the communities of Goodyear, Avondale, and Tolleson, meeting with local streets and area freeways such as Loop 303 (at the former Cotton Lane interchange, exit 124) and the Loop 101 Agua Fria Freeway along the way. By December 2019, the simple diamond interchange with 59th Avenue (exit 138) was totally rebuilt, transforming it into the first of two junctions with the Loop 202 Ed Pastor Freeway. As it makes its way through Phoenix, the highway meets with I‑17 and US 60 for the first time just northwest of downtown at The Stack.

Inner Loop

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East of The Stack, I-10 forms the north edge of downtown. Near 3rd Avenue, the highway enters a half-mile tunnel (800 m) that runs under a park and the central branch of the City of Phoenix Library. Emerging past 3rd Street, the highway continues due eastward for another two miles (3.2 km) before coming to another interchange for Route 51 and Loop 202 (second of three junctions with the latter), called the Mini Stack. At this interchange, I‑10 turns southward for about three miles (4.8 km), passing near Sky Harbor Airport and reaching the second junction with I‑17/US 60. Here, I‑17 terminates as I‑10 skews eastward again. After this junction, the highway is cosigned with US 60.

Maricopa Freeway

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Southern-most intersection of the I-10 and Loop 202

Continuing southeast over the Salt River and eastward, I‑10 and US 60 enter Tempe and meets with SR 143. Then, at the Broadway Curve, the freeway turns southward again, with US 60 splitting off to become its own freeway. I‑10 continues southward running along the city borders of Phoenix on the west, and Tempe, Guadalupe, Tempe again, and finally Chandler on the east. Immediately north of the Gila River Indian Community, I‑10 has its third and final intersection with Loop 202. Past Loop 202, the highway turns to a more south by southeast direction going through the Gila River Indian Community and entering Pinal County.

Broadway Curve

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As of a 2006 estimate, the Broadway Curve portion of I‑10 in Tempe carries an average of 294,000 vehicles per day.[3] This number is predicted to increase by over 150,000 to approximately 450,000 by 2025.[4] This section of I‑10 is currently twelve lanes wide, and is the widest section of freeway in the valley. Construction is underway (as of July 2021) to widen the Broadway Curve area.[5]

Eastern segment

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After exiting the Phoenix metropolitan area, I‑10 continues southward into Casa Grande intersecting I‑8 before heading southeast towards Tucson, paralleling the Santa Cruz River. Several projects have occurred recently, including construction of a new exit at Twin Peaks Road in Marana and widening of I‑10 from Prince Road to I-19 in Tucson to four lanes in each direction, which was later extended to Ruthrauff Road/El Camino Del Cerro.[6] After I-10's junction with I-19, I-10 heads southeast towards Benson and Willcox before entering New Mexico.

History

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Entering from California

I‑10 in Arizona was laid out by the Arizona Highway Department in 1956–1958 roughly paralleling several historic routes across the state. Particularly east of Eloy, it follows the Butterfield Stage and Pony Express routes, and loops south to avoid the north–south Basin and Range mountains prevalent in the state. In fact, the route from its junction with I‑8 east to New Mexico is almost exactly the same route used by the old horse-drawn stagecoaches, which had to go from waterhole to waterhole and avoid the hostile Apache Indians. This is why I-10 is more of a north–south route between Phoenix and Tucson than east–west. The Southern Pacific Sunset Route line had to take the route of least hills, and in the 1920s highways were laid down next to the trains across southern Arizona.

When the project was being designed in the 1950s, the Arizona Highway Department fought for a nearly straight-shot west from Phoenix for the new freeway, instead of angling northwest out of Phoenix along US 60/US 70/US 89, through Wickenburg. Wickenburgers battled to bring the freeway through their city but lost that battle. The detour up through Wickenburg was logical decades earlier, when nearly all U.S. highways through Arizona were laid out along railroad tracks, and US 60/US 70 was routed mostly parallel to the Santa Fe rail tracks east of Wickenburg, and the Arizona and California Railway west to Vicksburg. The two old federal routes then struck west across the desert and state line, picking up the Southern Pacific mainline at Indio, California, and I-10 overlies the old roads most of that distance.

West of Phoenix

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See also: U.S. Route 60 in Arizona
 
I-10 between Blythe, California, and Quartzsite, Arizona

Moving east from the California line at Ehrenburg, I-10 follows the old route of US 60/US 70 for the first 31 miles (50 km) east from Blythe, California. In 1960, this westernmost stretch of I-10 was built from near the Colorado River east to the future spot where the "Brenda Cutoff" section of I-10 would connect a decade later. Until the early 1970s, this was the last freeway stretch until Phoenix. The "Brenda Cutoff" was named for a gas station on the old road just east of the fork where US 60 now terminates at I-10. Now an obscure name, "Brenda Cutoff" was the working title that the Arizona Highway Department called the stretch of freeway from US 60 to near Buckeye. The Brenda Cutoff paralleled old sand roads used in the 1920s for Phoenix-Los Angeles traffic, but mostly abandoned after US 60/US 70 was built to the north, through Wickenburg.

The Brenda Cutoff's opening on June 18, 1973 was eagerly awaited and was a big deal in newspapers in Phoenix and Los Angeles. It saved motorists from having to drive through Glendale, Sun City, Wickenburg and Salome, about 20 miles (32 km) out of the way, and it eliminated about 80 miles (130 km) of two-lane highway. But the freeway was opened only as far east as Tonopah, and heavy traffic was routed down narrow county roads through the desert and fields between Tonopah and Buckeye. In addition, there was only one very-small gas station on the very-long route between Buckeye and Quartzsite, on the old county road at the tiny crossroads of Palo Verde. Signs warning "No Services Next 106 Miles" were posted at either end of the Brenda Cutoff those first few years.

The freeway was extended past Tonopah as far east as Phoenix's western fringes (at Cotton Lane) in about 1974. I-10's freeway section ended in Goodyear until the controversial Papago Freeway was finished across the western Valley of the Sun in 1990. During the "west valley gap" years, westbound I-10 traffic was routed off the Maricopa Freeway at 19th Avenue in Phoenix, and stayed on the access road as it curved past the Durango Curve. Los Angeles-bound traffic then turned left on Buckeye Road and followed the "TO 10" signs down Buckeye Road (first marked US 80 until 1977, then SR 85) for nearly 15 years.

Phoenix metropolitan area

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The interstate's route through Phoenix was hotly contested in the 1960s, 1970s, and early 1980s. A plan proposed by the Arizona Department of Transportation involved monstrous block-sized 270-degree "helicoil" interchanges at Third Avenue and Third Street that would connect motorists to freeway lanes 100 feet (30 m) in the air, but voters killed it in 1973 as a result of opposition from the Arizona Republic newspaper and a growing nationwide anti-freeway sentiment. Voters on election day were treated to a photo depiction on the front page of the newspaper that in later years was shown to have drastically overstated the freeway's height, but there is no question the proposed viaducts and helicoils would have been a visual gash across central Phoenix.

 
Southern terminus of I-17 in Phoenix

Beginning in 1961, a stub of what is now the Inner Loop portion of I‑10 was built northward from the Maricopa Freeway (then I‑10) along 20th Street, ending 0.5 miles (0.80 km) north at Buckeye Road. This stub was originally designated I-510.[7] The Inner Loop name was given to it in 1969, at which time the highway changed numbers, to I-410.[8] The I-10/I-510 interchange was the first multilevel interchange in Arizona and lasted until the Inner Loop was built as a real freeway in the 1980s. This putative freeway was two lanes in each direction and would have been hopelessly inadequate as a leg of the Inner Loop as it was intended.

After 1973, Arizona engineers favored a more-modest plan to link I-10 with I‑17 at the "Durango Curve" near 19th Avenue at Buckeye Road, and avoid the "Moreland Corridor" alignment of the Papago Freeway by adopting a route south of Buckeye Road. In 1983, ADOT unveiled the current below grade plans on Moreland Street, three blocks south of McDowell Road. Despite some local opposition, I-10 was finally completed in central Phoenix on the Inner Loop alignment, 0.75 miles (1.21 km) north of Van Buren Street, on August 10, 1990.[9] The state is now considering a reliever freeway in West Phoenix, parallel to I-10 on the old Durango Street corridor, and was originally designated as Route 801, which has since been changed to SR 30.

The original 1962 alignment of I-10 through Phoenix was on the Black Canyon and Maricopa Freeways, now signed as I-17 and US 60, starting at about Grand Avenue. From 1962 to 1974, I‑10 in Phoenix ended at 40th Street, and truck traffic through Phoenix and Mesa was directed to use Arizona Route T-69 via 40th Street south and Baseline Road east to connect to SR 87 and SR 93, the shortcuts to Tucson. The I-10 signs were moved from the Maricopa Freeway to the Papago Freeway/Inner Loop alignments when it opened in 1990—the last gap of I-10 to be completed between Santa Monica and Jacksonville. This was the only time in Arizona where the posted freeway was moved from one road to another: the state never posted interstate signs on older state or U.S. highways. ADOT instead made frequent use of interstate shields with the word "TO" above and arrows below the shield.

For several years in the early 1970s, an orphan section of I-10 was opened between Baseline Road and Williams Field Road (now Chandler Boulevard) but was not marked as any highway, nor was it connected to the rest of the Interstate Highway System. ADOT, it seems, did not want to divert trucks down from T-69 in Guadalupe down into the cotton fields west of Chandler. This section got its interstate signs when the freeway south to Tucson was completed in about 1970, and the "Broadway Curve" was connected a year or so later—for almost two years, I-10 traffic used Baseline Road and 40th Street through the Japanese flower gardens until the last link between Tucson and Phoenix opened in about 1972.

From 1958 to 1972, the interstate was unmarked south from Tempe and Mesa, and traffic used either SR 87 through Coolidge or SR 93 through Casa Grande, or US 80/US 89 through Mesa and Florence. I‑10 signs reappeared at the town of Picacho, the 1962–1970 western terminus of the freeway from Tucson.

I‑10 was widened from Verrado Way to Loop 101, a total of thirteen miles (21 km). This included a new HOV lane from Dysart Road (exit 129) to Loop 101, later adding a HOV lane from Estrella Pkwy (exit 126) to Dysart Road. From Estrella Pkwy to Verrado Way, an additional lane was added.

New interchanges have been added, whereas Citrus Road has a new exit at 123, Sarival Avenue has a new exit at 125, and Fairway Drive has a new exit at 130.

Southeast of Phoenix

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See also: Arizona State Route 84 and U.S. Route 80 in Arizona

The road from Casa Grande to Tucson was originally SR 84 and SR 93, and when it was rebuilt as a freeway in 1961–1962 it was cosigned as I‑10 and routes 84 and 93 through 1966, when 84 was truncated at Picacho. This section of interstate was completed in 1961, and forced the demolition of the town center at Marana. The freeway through Tucson, which was rebuilt and widened in stages from 1989 to 2014, with frontage roads added, was originally signed as SR 84 from Miracle Mile to Sixth Avenue.

 
Miracle Mile (SR 77) in Tucson

The original highway from Casa Grande to Tucson entered the Old Pueblo via Miracle Mile, a road modeled after German Autobahns but without overpasses or an exclusive right of way. Traffic circles at either end of Miracle Mile were the best Tucson could come up with in 1937. The section of Miracle Mile West stretching between Miracle Mile and the Southern Pacific overpass was signed as Business Loop 10, SR 84, and SR 93 in the 1960s. It is now marked as the southern leg on SR 77, the new designation for US 80/US 89 north out of Tucson. The Business Loop designation was dropped in 1998.

The present-day I‑10 alignment along the Santa Cruz River was laid out after a city bond issue passed in 1948 to build a riverbank-side boulevard with room for a four-lane freeway in the median to follow.[10] The route was originally called the Tucson Limited Access Highway and the Tucson Freeway.[11][12] Construction on the bypass began on December 27, 1950.[13] The first section of bypass artery, from Congress Street north to Miracle Mile West, was opened on December 20, 1951 but had no overpasses or interchanges at Grant Road (then DeMoss-Petrie Road), Speedway Boulevard or St. Mary's Road.[14] It was first signed SR 84A.[15] The remainder of the route was finished by 1956 to a new cloverleaf interchange at Sixth Avenue (then US 80 and US 89).[16] In 1958, the state added the bypass to the Interstate Highway System as part of I-10 and began converting it to full freeway standards. The freeway was finally completed in 1961, and parts of it obliterated the original road.[10] The SR 84A designation was entirely concurrent with I-10 between Sixth Avenue and Miracle Mile until October 11, 1963, when the designation was finally retired in favor of I-10.[17]

The old cloverleaf at Sixth Avenue was the first built in Arizona, opening in the early 1950s as a southern Tucson gateway junction to the roads linking Tucson, Benson, Nogales, and the hoped-for Tucson bypass along the Santa Cruz River. It was converted to a diamond interchange by 1964 and the old "quick dip" underpass was removed and replaced by an interstate-standard overpass in the late 1980s.

Although the controversial I‑10 route across Phoenix was the last gap of I‑10 to be completed, two pieces of the interstate were subsequently left sitting on divided remnants of old US 80 and were neither built to interstate nor modern safety standards. One was the old Sixth Avenue interchange, and a small section of freeway east to the overpass over the old Southern Pacific (now Union Pacific) spur to Nogales and Guaymas. That section was replaced about 1990.

The last section of old US 80 that carried the I‑10 traffic was an underpass beneath the Union Pacific mainline east of Tucson, where the freeway median shrank to a guardrail at Marsh Station Road and the Pantano railroad overpass was too low. This underpass and section of former US 80 was originally constructed between 1952 and 1955 to replace the older more dangerous route over the 1921 Ciénega Bridge.[18] The Marsh Station Road interchange was replaced in 2011, with the railroad mainline rerouted in 2012 and the railroad overpass removed in 2013. The remainder of the old US 80 section was rebuilt to interstate standards, with completion in 2014.

East of Tucson, I‑10 parallels and, in some cases, overlies old US 80 to Benson, and was originally cosigned as US 80 and SR 86. The section of I-10 from Valencia Road to Rita Road was the first construction project in the state of Arizona funded by the Federal Aid Highway Act of 1956. Construction began in 1957 and was completed in 1960.[19][20] From Benson, the interstate follows the Southern Pacific mainline east through Willcox and Bowie to New Mexico, rather than bend south to the Mexican border along old US 80 (signed as SR 80 after 1989), through Douglas. The road from Benson east through Willcox was designated SR 86 in about 1935, that route number was subsequently shifted west and exists now between Why and Tucson. The bypass around Benson was opened about 1979, and other than the Phoenix gap was the last section of I‑10 to be opened.

Future

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Construction is planned for the 26-mile (42 km) segment from Loop 202 (Santan Freeway) in Chandler to SR 387 near Casa Grande. A third lane will be added in each direction along with improvements to several interchanges, crossroads and bridges. An HOV lane will be constructed for the six-mile (9.7 km) segment from Loop 202 to Riggs Road. Construction was originally planned to begin in 2025 but was sped up to begin in 2023 when Governor Doug Ducey signed a bill allocating funds for this project. The $1 billion project also received a $95 million federal grant in January 2024; the state and the Maricopa Association of Governments will provide the rest of the funding.[21] It is planned to be completed in 2026.[22][23][24]

HOV lane connections are planned to be constructed at the Loop 101 interchange in Tolleson. Construction is planned to begin in 2025 and be completed in 2027.[25]

In 2011, ADOT started a study to improve the I-10 in the Tucson area. In December 2020, ADOT released final design concept report that will widen I-10 by two to four lanes from the I-19 to Kolb Road interchanges. Several interchanges will be reconfigured with exit 264 being replaced. SR 210 will also be extended as a freeway to I-10 at the Alvernon Way interchange. The project will be done in 18 phases with two phases already receiving some funding. The project is expected to cost $1.2 billion.[26][27][28][29]

I-10 on the north side of Tucson will also be widened from three to four lanes in each direction between Ina Road to 22nd Street.[30] Construction for this started in March 2022 and is expected to last until 2025.[31][32] In April 2023, the Orange Grove Road interchange was closed by ADOT as part of the project. This and the Sunset Road interchange will be closed until at least late 2024.[33]

Exit list

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CountyLocationmi[34]kmExitDestinations[35]Notes[36]
Colorado River0.000.00 
  
  I-10 west / US 95 north – Los Angeles		Continuation into Blythe, California
Arizona–California line
La PazEhrenberg0.721.161Ehrenberg, Parker
5.879.455Tom Wells Road
​11.9919.3011Dome Rock Road
Quartzsite17.5428.2317 
  
  
 
  BL 10 east / US 95 south to SR 95 north – Parker, Yuma, Quartzsite		East end of concurrency with US 95; former US 60 / US 70 east
19.9432.0919 
  BL 10 west (Riggles Avenue) – Quartzsite		Former US 60 / US 70 west
​26.6842.9426Gold Nugget Road
​31.1850.1831 
  US 60 east – Wickenburg, Prescott		Western terminus of US 60; former US 70 east
​45.3873.0345 
 
  Vicksburg Road to SR 72 west
​53.9886.8753Hovatter Road
​69.69112.1669Avenue 75E
Maricopa​81.24130.7481Salome Road
Tonopah94.18151.5794411th Avenue – Tonopah
​98.32158.2398Wintersburg Road
​103.47166.52103339th Avenue
Buckeye109.70176.55109Sun Valley Parkway / Palo Verde Road
112.77181.49112 
  
  SR 85 south to I-8 – Gila Bend, Yuma, San Diego		Northern terminus of SR 85
114.88184.88114Miller Road – BuckeyeRebuilt into a diverging diamond interchange[37]
117.01188.31117Watson RoadRebuilt into a diverging diamond interchange[38]
120.24193.51120Verrado Way
121.72195.89121Jackrabbit Trail
Buckeye–Goodyear line122.72197.50122Perryville Road
Goodyear123.73199.12123Citrus Road / Sarival AvenueEastbound exit and westbound entrance
124.73200.73124  Loop 303 (Bob Stump Memorial Parkway)Loop 303 exit 104; formerly Cotton Lane
Begin Papago Freeway
125.70202.29125Sarival Avenue / Citrus RoadWestbound exit and eastbound entrance
126.71203.92126Pebblecreek Parkway / Estrella Parkway
127.71205.53127Bullard Avenue
128.72207.15128Litchfield Road – Goodyear
Avondale129.71208.75129Dysart Road
130.13209.42Bridge over the Agua Fria River
130.71210.36130Fairway Drive
131.71211.97131Avondale BoulevardFormerly 115th Avenue
132.69213.54132107th AvenueWestbound access is via exit 133A
Avondale–Tolleson line133.69215.15133A99th Avenue / 107th AvenueNo signage for 107th Avenue eastbound; 99th Avenue was Temporary Loop 101 before the Agua Fria Freeway interchange was built
133.98215.62133B 
  Loop 101 north (Agua Fria Freeway)		Loop 101 exits 1A-B; counterclockwise terminus of Loop 101
133C 
  Loop 101 north		Planned HOV interchange to be westbound exit and eastbound entrance; construction planned to start in 2025[25]
Tolleson134.69216.7613491st Avenue – Tolleson
Tolleson–Phoenix line135.68218.3613583rd Avenue
Phoenix136.18219.16136A79th AvenueHOV access only; westbound exit and eastbound entrance
136.70220.00136B75th AvenueSigned as exit 136 eastbound
137.69221.5913767th Avenue / 59th AvenueSigned as exit 138C westbound; 59th Avenue not signed eastbound
138.67223.17138A 
  Loop 202 south (Ed Pastor Freeway)		Loop 202 exits 78A-B; signed as exit 138 eastbound; formerly 59th Avenue; access to 59th Avenue now via frontage roads between 67th Avenue and 51st Avenue
138B 
  Loop 202 south		HOV interchange; westbound exit and eastbound entrance; clockwise terminus of Loop 202
139.66224.7613951st Avenue / 59th AvenueEastbound exit and westbound entrance closed upon construction of the Ed Pastor Freeway interchange
140.66226.3714043rd Avenue
141.67228.0014135th Avenue
142.67229.6114227th AvenueEastbound exit and westbound entrance; former I-10 BL east
143.18230.43143A-B   I-17 / US 60 (Black Canyon Freeway) / I-10 Truck east – FlagstaffSigned as exits 143A (north) and 143B (south), I-10 Truck Route via exit 143B; I-17 exit 200A
End Papago Freeway, begin Inner Loop
143.89231.57143C19th Avenue / Grand AvenueWestbound exit and eastbound entrance; Grand Avenue is former US 60 / US 89
144.68232.84144A7th Avenue – DowntownSigned as exit 144 westbound
144.70232.87144B5th Avenue / 3rd AvenueHOV access only; eastbound exit and westbound entrance
144.96233.29Deck Park tunnel underneath Margaret T. Hance Park
145.70234.48145B3rd StreetHOV access only; westbound exit and eastbound entrance
145.46234.10145A7th StreetSigned as exit 145 eastbound
146.71236.1114616th StreetEastbound exit and westbound entrance
146.96236.51147C 
  Loop 202 east		HOV access only; eastbound exit and westbound entrance
146.96–
147.27		236.51–
237.01		147A-B 
  
  Loop 202 east (Red Mountain Freeway) / SR 51 north		Counterclockwise terminus of Loop 202; southern terminus of SR 51; signed as exits 147A (Loop 202) and 147B (SR 51)
147.27237.01147C 
  SR 51 north		HOV access only; westbound exit and eastbound entrance
148.18238.47148Washington Street / Jefferson Street – Rental Car ReturnWestbound entrance includes direct exit ramp to SR 51/Loop 202 (exits 147A-B); signed as "Washington Street / Jefferson Street" only westbound
148.94239.70149  Sky HarborEastbound exit and westbound entrance
149.34240.34  Buckeye Road – Sky Harbor, Rental Car ReturnWestbound exit and eastbound entrance
149.57240.71150A 
  
  I-17 north / US 60 west (Maricopa Freeway west) / I-10 Truck west – Flagstaff		West end of US 60 overlap; southern terminus of I-17; signed as exit 150 eastbound; I-17 exit 194
End Inner Loop, begin overlap with Maricopa Freeway
149.94241.31150B24th StreetWestbound exit and eastbound entrance
150.77242.64Bridge over the Salt River
151.50243.82151University Drive / 32nd StreetFormerly signed as exit 151A
152.39245.2515240th StreetFormerly signed as exit 151B
Phoenix–Tempe line153.38246.84153A 
   SR 143 north (Hohokam Expressway) / 48th Street south / Broadway Road – Sky Harbor		Signed as exit 153 eastbound; Broadway Road not signed westbound; exits 1A-B on SR 143; former I-10 BL west; formerly signed as exit 152
Tempe153C 
  SR 143 north		Planned HOV interchange currently under construction; to be westbound exit and eastbound entrance[39]
153.75247.44153BBroadway Road / 52nd StreetWestbound exit and eastbound entrance; formerly signed as exit 153
155.17249.72— 
  US 60 east		HOV access only; eastbound exit and westbound entrance
155.25249.85154 
  US 60 east (Superstition Freeway) – Mesa, Globe		East end of US 60 overlap; former SR 360 east
Tempe–Guadalupe line155.94250.96155Baseline Road – GuadalupeGuadalupe is on eastbound signage
Tempe157.98254.24157Elliot Road – GuadalupeGuadalupe is on westbound signage
158.98255.85158Warner Road
Phoenix–Chandler line159.98257.46159Ray Road
160.98259.07160Chandler BoulevardFormerly Williams Field Road
161.50259.91161A-B  Loop 202Loop 202 exit 55A-B
161C 
  Loop 202 east (SanTan Freeway)		HOV access only; eastbound exit and westbound entrance; Loop 202 exit 55C
End Maricopa Freeway
Chandler-Gila River Indian Reservation line162.82262.03162Wild Horse Pass Boulevard / Sundust RoadFormerly Maricopa Road
Gila River Indian Reservation-Chandler line164.80265.22164 
  SR 347 south (Queen Creek Road)		Northern terminus of SR 347
Gila River Indian Reservation- Sun Lakes line167.78270.02167Riggs Road
PinalSweet Water Village176.11283.42175  SR 587 (Casa Blanca Road) – Chandler, GilbertFormer SR 93 north
​179Seed Farm RoadFuture interchange[40]
​185.56298.63185  
  SR 387 to SR 187 – Casa Grande, Coolidge, Sacaton, Florence		Former SR 93 south
Casa Grande190.95307.30190McCartney Road
195.19314.13194  SR 287 (Florence Boulevard)
198.40319.29198Jimmie Kerr Boulevard (SR 84)Former SR 93
199.36320.84199 
  I-8 west (Phoenix Bypass Route) – San Diego		Eastern terminus of I-8; exits 178A-B on I-8
Casa Grande–Eloy line200.40322.51200Sunland Gin Road – Arizona CityWestbound entrance includes direct exit ramp to I-8 (exit 199)
Eloy204.13328.52203Toltec Road
209.09336.50208Sunshine Boulevard
​211.27340.01211APicachoClosed in 2019; was eastbound exit and westbound entrance
Picacho211 
  SR 87 north to SR 84 west – Coolidge, Florence		Formerly signed as exit 211B eastbound; southern terminus of SR 87; north of interchange is eastern terminus of unsigned section of SR 84; former SR 93 north
212.49341.97212PicachoClosed in 2019; was westbound exit and eastbound entrance
​220.13354.26219Picacho Peak Road – Picacho Peak State Park
Red Rock226.74364.90226Red Rock
Avra—Saguaro Power Plant & Solar FacilityWestbound exit only; exit not signed
​232.30373.85232Pinal Air Park Road
PimaMarana236.71380.95236Marana Road
240.74387.43240Tangerine Road
243.24391.46242Avra Valley Road
244.81393.98244Twin Peaks Road
247.02397.54246Cortaro Road
249.01400.74248Ina Road
250.35402.90250Orange Grove RoadCurrently closed as part of the I-10 widening project
Marana–Tucson line251.47404.70251Sunset RoadCurrently closed as part of the I-10 widening project
Tucson252.71406.70252El Camino del Cerro / Ruthrauff Road
254.59409.72254Prince Road
255.57411.30255 
  SR 77 north (Miracle Mile)		Southern terminus of SR 77; former SR 84 east / SR 93 south
256.46412.73256Grant Road
257.61414.58257Speedway Boulevard / St. Marys Road – University of ArizonaNo westbound signage for St. Marys Road
258.65416.26258  Congress Street / Broadway Boulevard / St. Marys RoadNo westbound signage for Broadway Boulevard, no eastbound signage for St. Marys Road; access to Tucson Station (Amtrak)
Tucson–South Tucson line259.63417.8325922nd Street / 29th Street / Starr Pass Boulevard / Silverlake Road
260.39419.06260 
  I-19 south – Nogales		I-19 exit 101; northern terminus of I-19
Tucson261.28420.492616th Avenue (Historic US 80 west) / 4th Avenue6th Avenue is former BL 19 south and former US 80 west / US 89 south; will be reconfigured as part of I-10 widening/SR 210 extension project
261.72421.20262Benson Highway (Historic US 80 east) / Park AvenueNo westbound signage for Benson Highway; Park Avenue is former US 89 / SR 93; Benson Highway is former BL 10 / US 80 east (Tucson-Benson Highway); will be reconfigured as part of I-10 widening/SR 210 extension project
262.53422.50263  Kino Parkway / Ajo Way – Tucson International AirportSplit into exits 263A (Kino south) and 263B (Kino north/Ajo) eastbound; will be reconfigured as part of I-10 widening/SR 210 extension project
263.82424.58264Country Club RoadFuture diamond interchange to replace the current exit 264 as part of I-10 widening/SR 210 extension project
264.37425.46264Palo Verde Road / Irvington RoadSplit into exits 264A (Palo Verde south) and 264B (Palo Verde north/Irvington) eastbound; will be removed as part of I-10 widening/SR 210 extension project
Drexel-Alvernon265.02426.51265BAlvernon WayWestbound exit signed as Alvernon Way north; will be reconfigured to a tri-stack interchange as part of I-10 widening/SR 210 extension project
265.02426.51265A 
  SR 210 west (Barraza-Aviation Parkway)		Future interchange, part of the tri-stack interchange as part of I-10 widening/SR 210 extension project.
Tucson267.40430.34267  Valencia Road (Historic US 80 west) – Tucson International AirportFormer BL 10 / US 80 west (Tucson-Benson Highway); diamond interchange; will be realigned as part of I-10 widening/SR 210 extension project
268.39431.93268Craycroft RoadTight diamond interchange; will be realigned as part of I-10 widening/SR 210 extension project
269.64433.94269Wilmot RoadTight diamond interchange; will be realigned as part of I-10 widening/SR 210 extension project
270.87435.92270Kolb RoadWill be reconfigured to a Three-level diverging diamond interchange as part of I-10 widening/SR 210 extension project
273.43440.04273Rita Road
275.77443.81275Houghton RoadReconfiguration to a diverging diamond interchange completed in November 2021[41]
Vail279.68450.10279Colossal Cave Road / Wentworth Road
281.96453.77281 
  SR 83 south – Sonoita, Patagonia		Northern terminus of SR 83; access to north frontage road/Marsh Station Road (former US 80 east)
​291.32468.83291Marsh Station RoadFormer US 80 west
​292.77471.17292Empirita Road
CochiseMescal297.45478.70297Mescal Road / J Six Ranch Road
​299.63482.21299Skyline Road
Benson302.67487.10302 
  SR 90 east – Fort Huachuca, Sierra Vista		Western terminus of SR 90
304.16489.50303 
  
 
  BL 10 east (Historic US 80 east) to SR 80 east – Tombstone, Douglas		No westbound exit; western terminus of I-10 BL; former US 80 east
305.20491.17304Ocotillo Street
307.43494.76306 
  
  BL 10 west (Pomerene Road) to SR 80 – Tombstone		Eastern terminus of I-10 BL; former SR 86 west
​313.56504.63312Sibyl Road
​319.76514.60318Dragoon Road
​323.39520.45322Johnson Road
​332.41534.96331 
  US 191 south – Sunsites, Douglas		West end of US 191 overlap
​337.69543.46336 
  BL 10 east / Taylor Road – Chiricahua National Monument
Willcox341.33549.32340 
  SR 186 east (Rex Allen Drive) / Fort Grant Road
​345.28555.67344 
  BL 10 west / Old Stewart Road
Kagen353.19568.40352 
  US 191 north – Safford		East end of US 191 overlap
Luzena356.77574.17355 
 
  To US 191 north – Safford		Access via unsigned US 191 Spur (Page Ranch Road); signed as "Safford" only eastbound
Bowie363.66585.25362 
  BL 10 east – Bowie
367.60591.59366 
  BL 10 west – Bowie
San Simon379.75611.15378 
  BL 10 east – San Simon
383.14616.60382 
  BL 10 west – San Simon
​391.57630.17390Cavot Road
​391.99630.85 
  I-10 east – El Paso		Continuation into New Mexico
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

edit
  1. ^ Transportation Planning Division, Data Bureau (December 31, 2007). "2007 State Highway System Log" (PDF). Arizona Department of Transportation. Retrieved July 16, 2007.
  2. ^ "Arizona Purple Heart Entities" (PDF). Military Order of the Purple Heart. 2018. Retrieved February 7, 2021.
  3. ^ "State proposes an additional 10 lanes for highway". East Valley Tribune. Archived from the original on May 2, 2008. Retrieved March 18, 2008.
  4. ^ "202 foes love new Broadway Curve". Arizona Republic. Phoenix. Retrieved March 18, 2008.
  5. ^ "Extension may help uncork Broadway Curve". Arizona Republic. Phoenix. Retrieved March 18, 2008.
  6. ^ "Search | ADOT".
  7. ^ Breyer, Joe. "Arizona DOT Right-of-Way Resolution 1962-151". Arizona Highway Data. Works Consulting, LLC. Retrieved March 6, 2016.
  8. ^ Breyer, Joe. "Arizona DOT Right-of-Way Resolution 1969-016". Arizona Highway Data. Works Consulting, LLC. Retrieved March 6, 2016.
  9. ^ "The Way It Was in 1956". United States Department of Transportation. Archived from the original on March 14, 2010. Retrieved April 13, 2008.
  10. ^ a b Clinco, Demion (February 18, 2009). "Historic Miracle Mile: Tucson's Northern Auto Gateway" (PDF). Historic Context Study Report. Frontier Consulting. pp. 31, 32. Retrieved August 24, 2018.
  11. ^ Staff. "ADOT Right-of-Way Resolution 1948-P-065". Arizona Department of Transportation. Retrieved September 7, 2018.
  12. ^ "Contract For Freeway To Be Awarded Today". Arizona Daily Star. Tucson. Associated Press. November 10, 1950. p. 26. Retrieved June 17, 2019 – via Newspapers.com.  
  13. ^ "Tucson: Day-by-Day in 1950". Arizona Daily Star. Tucson. December 31, 1950. p. 22. Retrieved June 17, 2019 – via Newspapers.com.  
  14. ^ Inskeep, Lester (December 21, 1951). "Traffic Crush Forces Freeway to Open Ahead of Schedule". Arizona Daily Star. Tucson. pp. 1A, 10A. Retrieved June 17, 2019 – via Newspapers.com.  
  15. ^ "Commission to Decide on Hauling Requests". Arizona Daily Star. Tucson. March 9, 1952. p. 10C. Retrieved June 17, 2019 – via Newspapers.com.  
  16. ^ Shell Oil Company; H.M. Gousha Company (1956). Shell Highway Map of Arizona (Map). 1:1,330,560. Chicago: Shell Oil Company. Retrieved March 31, 2015 – via David Rumsey Map Collection.
  17. ^ Staff. "ADOT Right-of-Way Resolution 1963-P-069". Arizona Department of Transportation. Retrieved June 5, 2019.
  18. ^ Roth, Bernie (April 8, 1955). "Cienega Wash No Longer Holds Terrors For Unwary Motorist". Arizona Daily Star. Tucson. p. 1B. Retrieved June 17, 2019 – via Newspapers.com.  
  19. ^ Harelson, Hugh (December 4, 1960). "$3 Million Road Budget Explained". Arizona Republic. Phoenix. p. 17. Retrieved October 6, 2018 – via Newspapers.com.  
  20. ^ "Federally Aided Road Improvements Begin". Arizona Daily Star. Tucson. March 26, 1957. p. 1. Retrieved October 6, 2018 – via Newspapers.com.  
  21. ^ Stone, Kevin (January 23, 2024). "Federal grant to help widen 26 miles of I-10 to 3 lanes each way". KTAR.com. Retrieved January 29, 2024.
  22. ^ "2023-2027 Five-Year Transportation Facilities Construction Program" (PDF). Arizona Department of Transportation. March 18, 2022. p. 25. Retrieved May 6, 2022.
  23. ^ Webb, Brian (May 4, 2022). "I-10 expansion project between Chandler, Casa Grande aims to reduce crashes, congestion". FOX 10 Phoenix. Retrieved May 6, 2022.
  24. ^ "I-10 bridges demolished as part of Broadway Curve Improvement Project". FOX 10 Phoenix. April 24, 2023. Retrieved April 26, 2023.
  25. ^ a b "FY 2022 Freeway Life Cycle Program (FLCP)" (PDF). Maricopa Association of Governments. December 1, 2021. p. 25. Retrieved May 6, 2022.
  26. ^ Davis, Shaq (September 21, 2020). "Road Runner: Crucial hurdle cleared for $1.2 billion project improving I-10, Barraza-Aviation". Arizona Daily Star. Retrieved September 7, 2023.
  27. ^ "Connecting Barraza-Aviation to I-10 is on the near horizon". Pima Association of Governments. September 15, 2022. Retrieved September 7, 2023.
  28. ^ "Downtown Links project update – August 2022". Regional Transportation Authority. August 24, 2022. Retrieved September 7, 2023.
  29. ^ "Interstate 10 and State Route 210 Study | Department of Transportation". azdot.gov. Retrieved September 7, 2023.
  30. ^ "I-10 Reconstruction between Ruthrauff and Ina roads". azdot.gov. Arizona Department of Transportation. Retrieved September 12, 2023.
  31. ^ Giuliano, Tina (March 16, 2022). "New reconstruction project on I-10 begins". KGUN9. Retrieved September 12, 2023.
  32. ^ Cooper, Jack (March 14, 2023). "Construction begins on I-10 widening project, expected to last until 2025". 13 News. Retrieved September 12, 2023.
  33. ^ Lapidus, Sarah (April 7, 2023). "I-10 interchange in Tucson to close until late 2024". azcentral. Retrieved September 12, 2023.
  34. ^ "2012 ADOT Highway Log" (PDF). ADOT. Arizona Department of Transportation. December 31, 2012. pp. 11–78. Archived from the original (PDF) on May 13, 2015. Retrieved May 17, 2015.
  35. ^ "Historic Arizona U.S. Route 80 Designation". Tucson Historic Preservation Foundation. August 2017. Retrieved September 30, 2018.
  36. ^ Shell Oil Company; H.M. Gousha Company (1956). Shell Highway Map of Arizona (Map). 1:1,330,560. Chicago: Shell Oil Company. Retrieved March 31, 2015 – via David Rumsey Map Collection.
  37. ^ "Arizona's 3rd diverging diamond interchange opens along I-10 in Buckeye". KTAR-FM. Bonneville International. August 24, 2022. Retrieved September 16, 2022.
  38. ^ "New West Valley I-10 interchange opens in Buckeye". The Daily Independent. Independent Newsmedia Inc. April 29, 2023. Retrieved May 11, 2023.
  39. ^ "Interstate 10 Broadway Curve: Interstate 17 (Split) to Loop 202 (Santan Freeway)". Arizona Department of Transportation. Retrieved May 1, 2020.
  40. ^ "Gasline Road to South of SR 387". ADOT I-10 Wild Horse Pass Corridor. Arizona Department of Transportation. Retrieved February 15, 2024.
  41. ^ "New Houghton Road interchange at I-10 first of its kind in S. Arizona". Arizona Daily Star. Tucson. November 29, 2021. Retrieved July 3, 2022.
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