Interstate 10 in Arizona

Interstate 10
Pearl Harbor Memorial Highway
Route information
Maintained by Arizona DOT
Length:	391.99 mi[1] (630.85 km)
Existed:	1990 – present
Major junctions
West end:	I-10 / US 95 at California state line
	US 95 in Quartzsite US 60 near Brenda I-17 / US 60 in Phoenix US 60 in Tempe I-8 in Casa Grande I-19 in Tucson US 191 near Willcox
East end:	I-10 at New Mexico state line
Highway system
Interstate Highway System Main Auxiliary Suffixed Business State Routes in Arizona Interstate U.S. State Unconstructed Former ← I-8 I-15 →

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.

Route description

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

The highway runs east by northeast past Ehrenberg 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 miles per hour (121 km/h) to 65 (105 km/h). The landscape by this point is largely urban and the freeway continues eastward towards Loop 303.

Papago Freeway

From there, I-10 traverses through the communities of Goodyear, Avondale and Tolleson, meeting with local streets and area freeways such as the Agua Fria Freeway (Loop 101) along the way. 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

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 2 miles (3.2 km) before coming to another interchange for Route 51 and Loop 202, called the Mini Stack. At this interchange, I‑10 turns southward for about 3 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 co-signed with US 60.

Maricopa Freeway

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 second 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

As of a 2006 estimate, the Broadway Curve portion of I‑10 in Tempe carries an average of 294,000 vehicles per day.^[2] This number is predicted to increase by over 150,000 to approximately 450,000 by the year 2025.^[3] This section of I‑10 is currently twelve lanes wide, and is the widest section of freeway in the valley. A study is underway to determine whether widening the Broadway Curve to double its current width to twenty-four lanes is feasible.^[4]

Eastern segment

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 Rd in Marana and widening of I‑10 from Prince Rd to I-19 in Tucson to four lanes in each direction, which was later extended to Ruthrauff Rd/El Camino Del Cerro.^[5] After I-10's junction with I-19, I-10 heads southeast towards Benson and Willcox before entering New Mexico.

Improvements

Several changes to the freeway are occurring, as this project has been ongoing since 2009.

I‑10 was widened from Verrado Way to Loop 101, a total of 13 miles (21 km). This included a new HOV lane from Dysart Rd (Exit 129) to Loop 101, later adding a HOV lane from Estrella Pkwy (exit 126) to Dysart Rd. From Estrella Pkwy to Verrado Way, an additional lane was added.

New interchanges have been added, whereas Citrus Rd has a new exit at 123 and Sarival Ave has a new exit at 125.

As of today, I‑10 now has mile markers posted every ²⁄₁₀ mile (320 m) from 112.2 to 110.8 with the interstate shield and direction of travel posted on the westbound lanes, and from 110.8 to 112.2 eastbound but without the I‑10 shield and direction of travel.

Annual Average Daily Traffic

Annual Average Daily Traffic (AADT) counts for I‑10 at the state lines and the cities it passes through in Arizona are listed below.

Exit [6]	Location	2006 AADT[6]	2007 AADT[6]	2008 AADT[6]
0	CA State Line	29,500	26,000	25,500
17	Quartzsite	23,500	20,000	17,500
120	Buckeye	54,500	62,000	59,000
135	Tolleson	138,000	185,000	177,000
146	Phoenix	291,000	288,000	257,000
155	Tempe	206,000	200,000	221,000
160	Chandler	116,000	116,000	113,000
198	Casa Grande	43,000	44,500	37,500
257A	Tucson	169,000	176,000	178,000
303	Benson	17,500	17,000	16,500
340	Willcox	14,000	14,500	14,500
390	NM State Line	12,000	12,500	12,500

History

Entering from California

I‑10 in Arizona was laid out by the Arizona Highway Department in 1956-58 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

Interstate 10 between Blythe and Quartzsite.

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 western-most 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 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

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 ¹⁄₂ mile (800 m) 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 multi-level 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 Rd. 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, ³⁄₄ mile (1.2 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 1962-74, 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 Blvd.) 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 Casa Grande 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 1958-1972, 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.

Southeast of Phoenix

The road from Casa Grande to Tucson was originally SR 84 and SR 93, and when it was rebuilt as a freeway in 1961-62 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, which has never really recovered. 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 84A 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. The first section of bypass artery, from Congress Street north to Miracle Mile West, was opened in 1954 but had no overpasses or interchanges at Grant Road, Speedway Boulevard or St. Mary's Road. The freeway was finally built after the state took over the bypass and promised it interstate status in 1958, and parts of it obliterated the original road. It was first signed SR 84.

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 sections. 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 shrunk to a guardrail at Marsh Station Road and the Pantano railroad overpass was too low. 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 co-signed as US 80 and SR 86. 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

The Arizona Department of Transportation in 2008 conducted a feasibility study of building new bypass freeways around Phoenix and Tucson and "straighten" I‑10 across the state. One route would have gone roughly from Buckeye east to Florence, then east through mountainous terrain to the Sulphur Springs Valley and connect with the existing I‑10 near Bowie. But this new roadway would traverse some environmentally fragile areas and was opposed as a gateway to urban sprawl. Another studied alignment would bypass Tucson to the south, forming a looping bypass freeway from Marana through the Avra Valley to Green Valley to Benson, an alternative that is still being studied.

Exit list

County	Location	mi[10]	km	Exit	Destinations	Notes
La Paz	Ehrenberg	0.00	0.00		I-10 west / US 95 north – Los Angeles	Continuation into California
		0.72	1.16	1	Ehrenberg, Parker	Via Juneau Avenue
		5.87	9.45	5	Tom Wells Road
		11.99	19.30	11	Dome Rock Road
	Quartzsite	17.54	28.23	17	I-10 BL east / US 95 south to SR 95 north – Parker, Yuma, Quartzsite	East end of concurrency with US 95
		19.94	32.09	19	I-10 BL west (Riggles Avenue) – Quartzsite
		26.68	42.94	26	Gold Nugget Road
		31.18	50.18	31	US 60 east – Wickenburg, Prescott	Western terminus of US 60
		45.38	73.03	45	Vicksburg Road
		53.98	86.87	53	Hovatter Road
		69.69	112.16	69	Avenue 75 East
Maricopa		81.24	130.74	81	Salome Road
	Tonopah	94.18	151.57	94	411th Avenue – Tonopah
		98.32	158.23	98	Wintersburg Road
		103.47	166.52	103	339th Avenue
	Buckeye	109.70	176.55	109	Sun Valley Parkway / Palo Verde Road
		112.77	181.49	112	SR 85 south to I-8 – Gila Bend, Yuma, San Diego	Northern terminus of SR 85
		114.88	184.88	114	Miller Road – Buckeye
		117.01	188.31	117	Watson Road
		120.24	193.51	120	Verrado Way
		121.72	195.89	121	Jackrabbit Trail
	Goodyear	122.72	197.50	122	Perryville Road
		123.73	199.12	123	Citrus Road / Cotton Lane	Eastbound exit and westbound entrance
		124.73	200.73	124	Loop 303 (Bob Stump Memorial Parkway)	Loop 303 exit 104
				Begin Papago Freeway
		125.70	202.29	125	Sarival Avenue / Citrus Road	Westbound exit and eastbound entrance
		126.71	203.92	126	Pebblecreek Parkway / Estrella Parkway
		127.71	205.53	127	Bullard Avenue
		128.72	207.15	128	Litchfield Road – Goodyear
	Avondale	129.71	208.75	129	Dysart Road
		130.13	209.42	Bridge over the Agua Fria River
		131.71	211.97	131	Avondale Boulevard
		132.69	213.54	132	107th Avenue	Westbound exit is via exit 133A
	Avondale–Tolleson line	133.69	215.15	133A	99th Avenue / 107th Avenue	No signage for 107th Ave. eastbound
		133.98	215.62	133B	Loop 101 north (Agua Fria Freeway)	Counterclockwise terminus of Loop 101; exits 1A-B on Loop 101
	Tolleson	134.69	216.76	134	91st Avenue – Tolleson
	Tolleson–Phoenix line	135.68	218.36	135	83rd Avenue
	Phoenix	136.18	219.16	136A	79th Avenue	HOV access only; westbound exit and eastbound entrance
		136.70	220.00	136B	75th Avenue	Signed as exit 136 eastbound
		137.69	221.59	137	67th Avenue
		138.67	223.17	138	59th Avenue	Site of planned interchange with Loop 202 (South Mountain Freeway)
		139.66	224.76	139	51st Avenue
		140.66	226.37	140	43rd Avenue
		141.67	228.00	141	35th Avenue
		142.67	229.61	142	27th Avenue	Eastbound exit and westbound entrance
		143.18	230.43	143 A–B	I-17 / US 60 (Black Canyon Freeway) / I-10 Truck east – Flagstaff	Signed as exits 143A (north) and 143B (south), I-10 Truck Route via exit 143B; I-17 exit 200A
				End Papago Freeway, begin Inner Loop
		143.89	231.57	143C	19th Avenue / Grand Avenue	Westbound exit and eastbound entrance
		144.68	232.84	144A	7th Avenue – Downtown	Signed as exit 144 westbound
		144.70	232.87	144B	5th Avenue / 3rd Avenue	HOV access only; eastbound exit and westbound entrance
		144.96	233.29	Deck Park tunnel underneath Margaret T. Hance Park
		145.70	234.48	145B	3rd Street	HOV access only; westbound exit and eastbound entrance
		145.46	234.10	145A	7th Street	Signed as exit 145 eastbound
		146.71	236.11	146	16th Street	Eastbound exit and westbound entrance
		146.96	236.51	147C	Loop 202 east	HOV access only; eastbound exit and westbound entrance
		146.96– 147.27	236.51– 237.01	147 A–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)
		147.27	237.01	147C	SR 51 north	HOV access only; westbound exit and eastbound entrance
		148.18	238.47	148	Washington Street / Jefferson Street – Rental Car Return	Westbound entrance includes direct exit ramp to SR 51/Loop 202 (exits 147A-B); signed as "Washington Street / Jefferson Street" only westbound
		148.94	239.70	149	Sky Harbor	Eastbound exit and westbound entrance
		149.34	240.34		Buckeye Road – Sky Harbor, Rental Car Return	Westbound exit and eastbound entrance
		149.57	240.71	150A	I-17 north / US 60 west (Maricopa Freeway) / 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
		149.94	241.31	150B	24th Street	Westbound exit and eastbound entrance
		150.77	242.64	Bridge over the Salt River
		151.50	243.82	151	University Drive / 32nd Street
		152.39	245.25	152	40th Street
	Phoenix–Tempe line	153.38	246.84	153A	SR 143 north (Hohokam Expressway) / 48th Street south / Broadway Road – Sky Harbor Airport	Signed as exit 153 eastbound; Broadway Rd. not signed westbound; exits 1A-B on SR 143
	Tempe	153.75	247.44	153B	Broadway Road / 52nd Street	Westbound exit and eastbound entrance
		155.17	249.72	—	US 60 east	HOV access only; eastbound exit and westbound entrance
		155.25	249.85	154	US 60 east (Superstition Freeway) – Mesa, Globe	East end of US 60 overlap; US 60 exit 171
	Tempe–Guadalupe line	155.94	250.96	155	Baseline Road – Guadalupe
	Tempe	157.98	254.24	157	Elliot Road – Guadalupe
		158.98	255.85	158	Warner Road
	Chandler	159.98	257.46	159	Ray Road
		160.98	259.07	160	Chandler Boulevard
161.50		259.91	161 A–B	Loop 202 east (San Tan Freeway) / Pecos Road west	Loop 202 exit 55A–B
			161C	Loop 202 east	HOV access only; eastbound exit and westbound entrance; Loop 202 exit 55C
			End Maricopa Freeway
	162.82	262.03	162	Wild Horse Pass Boulevard / Sundust Road
	164.80	265.22	164	SR 347 (Queen Creek Road)
	167.78	270.02	167	Riggs Road – Sun Lakes
Pinal		176.11	283.42	175	SR 587 (Casa Blanca Road)
		185.56	298.63	185	SR 187 / SR 387 – Sacaton, Florence
		190.95	307.30	190	McCartney Road
	Casa Grande	195.19	314.13	194	SR 287 (Florence Boulevard)
		198.40	319.29	198	Jimmie Kerr Boulevard – Casa Grande	Former SR 84
		199.36	320.84	199	I-8 west (Phoenix Bypass Route) – San Diego	Eastern terminus of I-8, exits 178A-B on I-8
	Eloy	200.40	322.51	200	Sunland Gin Road – Arizona City	Westbound entrance includes direct exit ramp to I-8 (exit 199)
		204.13	328.52	203	Toltec Road – Eloy
		209.09	336.50	208	Sunshine Boulevard – Eloy
		211.27	340.01	211A	Picacho	Eastbound exit and westbound entrance
				211B	SR 87 north / SR 84 east – Coolidge, Florence	Signed as exit 211 westbound; southern terminus of SR 87; eastern terminus of unsigned section of SR 84
		212.49	341.97	212	Picacho	Westbound exit and eastbound entrance
		220.13	354.26	219	Picacho Peak Road – Picacho Peak State Park
		226.74	364.90	226	Red Rock
		232.30	373.85	232	Pinal Air Park Road
Pima	Marana	236.71	380.95	236	Marana Road
		240.74	387.43	240	Tangerine Road
		243.24	391.46	242	Avra Valley Road
		244.81	393.98	244	Twin Peaks Road
		247.02	397.54	246	Cortaro Road
		249.01	400.74	248	Ina Road
		250.35	402.90	250	Orange Grove Road
	Tucson	251.47	404.70	251	Sunset Road
		252.71	406.70	252	El Camino del Cerro / Ruthrauff Road
		254.59	409.72	254	Prince Road
		255.57	411.30	255	SR 77 north (Miracle Mile)	Southern terminus of SR 77
		256.46	412.73	256	Grant Road
		257.61	414.58	257	Speedway Boulevard / St. Marys Road – University of Arizona	No westbound signage for St. Marys Rd.
		258.05	415.29	257A	SR 210 east (Barraza-Aviation Parkway)	Future interchange[11]
		258.65	416.26	258	Congress Street / Broadway Boulevard / St. Marys Road	No westbound signage for Broadway Blvd., no eastbound signage for St. Marys Rd.
		259.63	417.83	259	22nd Street / 29th Street / Starr Pass Boulevard / Silverlake Road
		260.39	419.06	260	I-19 south – Nogales	Northern terminus of I-19
	South Tucson	260.47– 260.96	419.19– 419.97	No exits
	Tucson	261.28	420.49	261	6th Avenue / 4th Avenue	6th Ave. is former I-19 BL
		262.02	421.68	262	Benson Highway / Park Avenue	No westbound signage for Benson Hwy.
		262.86	423.03	263	Kino Parkway / Ajo Way – Tucson International Airport	Signed as exits 263A (south) and 263B (north) eastbound
		264.73	426.04	264	Palo Verde Road / Irvington Road	Signed as exits 264A (south) and 264B (north) eastbound
		265.32	426.99	265	Alvernon Way
		267.40	430.34	267	Valencia Road – Tucson International Airport
		268.39	431.93	268	Craycroft Road
		269.64	433.94	269	Wilmot Road
		270.87	435.92	270	Kolb Road
		273.43	440.04	273	Rita Road
		275.77	443.81	275	Houghton Road
	Vail	279.68	450.10	279	Colossal Cave Road / Wentworth Road
		281.96	453.77	281	SR 83 south – Sonoita, Patagonia	Northern terminus of SR 83
		291.32	468.83	291	Marsh Station Road
		292.77	471.17	292	Empirita Road
Cochise		297.45	478.70	297	Mescal Road / J-6 Ranch Road
		299.63	482.21	299	Skyline Road
	Benson	302.67	487.10	302	SR 90 east – Fort Huachuca, Sierra Vista	Western terminus of SR 90
		304.16	489.50	303	I-10 BL east to SR 80 – Douglas, Tombstone	No westbound exit, western terminus of I-10 BL
		305.20	491.17	304	Ocotillo Street
		307.43	494.76	306	I-10 BL west (Pomerene Road) to SR 80 – Tombstone	Eastern terminus of I-10 BL
		313.56	504.63	312	Sibyl Road
		319.76	514.60	318	Dragoon Road
		323.39	520.45	322	Johnson Road
		332.41	534.96	331	US 191 south – Sunsites, Douglas	West end of US 191 overlap
		337.69	543.46	336	I-10 BL east to Taylor Road – Chiricahua National Monument
	Willcox	341.33	549.32	340	SR 186 east (Rex Allen Drive) / Fort Grant Road
		345.28	555.67	344	I-10 BL west to Old Stewart Road
		353.19	568.40	352	US 191 north – Safford	East end of US 191 overlap
		356.77	574.17	355	To US 191 north – Safford
		363.66	585.25	362	I-10 BL east – Bowie
		367.60	591.59	366	I-10 BL west – Bowie
		379.75	611.15	378	I-10 BL east – San Simon
		383.14	616.60	382	I-10 BL west – San Simon
		391.57	630.17	390	Cavot Road
		391.99	630.85		I-10 east – El Paso	Continuation into New Mexico
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       HOV only       Incomplete access       Route transition       Unopened

References

1. Arizona Department of Transportation. "ADOT Highway Log" (PDF). Retrieved July 16, 2007.
2. "State proposes an additional 10 lanes for highway". East Valley Tribune. Archived from the original on 2008-05-02. Retrieved 2008-03-18.
3. "202 foes love new Broadway Curve". Arizona Republic. Retrieved 2008-03-18.
4. "Extension may help uncork Broadway Curve". Arizona Republic. Retrieved 2008-03-18.
5. https://www.azdot.gov/projects/south-central/I-10-from-Ruthrauff-Road-to-Prince-Road-Widening/overview|publish=AZDOT
6. "Arizona AADT Reports". ADOT. Retrieved 2010-10-05.
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". USDOT. Retrieved 2008-04-13.
10. "2012 ADOT Highway Log" (PDF). ADOT. Arizona Department of Transportation. 31 Dec 2012. pp. 11–78. Retrieved 2015-05-17.
11. O'Dell, Rob (July 9, 2008). "Aviation Parkway extension route OK'd; Rio Nuevo is moving ahead". Arizona Daily Star (Arizona Daily Star). Retrieved December 23, 2015.

External links

Route map: Bing / Google

• Interstate 10 - Arizona (AARoads.com)
• Papago Freeway at arizonaroads.com