Interstate 10 in Arizona

By | October 30, 2022


Get started Ehrenberg
End San Simon
Length 392 mi
Length 631 km
California state line → Los Angeles1 Ehrenburg

5 Tom Wells Road

11 Dome Rock Road

17 Parker

19 Quartz site

26 Gold Nugget Road

31 Wickenburg

45 Vicksburg Road

53 Hovatter Road

69 Avenue 75E

81 Salome Road

94 Tonopah

98 Wintersburg Road

103 339th Avenue

109 Sun Valley Parkway

112 Gila Bend

114 Buckeye

117 Watson Road

120 Verrado Way

121 Jackrabbit Trail

124 Loop 303

126 Pebblecreek Parkway

127 Bullard Avenue

128 Litchfield Road

129 Dysart Road

131 Avondale Boulevard

132 107th Avenue

133 → Phoenix Loop

134 91st Avenue

135 83rd Avenue

136 75th Avenue

137 67th Avenue

138 59th Avenue

139 51st Avenue

140 43rd Avenue

141 35th Avenue

142 27th Avenue

143 → Flagstaff

144 Downtown Phoenix

145 Downtown Phoenix

146 16th Street

147 → Mesa

148 Washington Street

149 Sky Harbor International Airport

150 → Flagstaff

151 University Drive

152 40th Street

153 → Scottsdale

154 → Mesa

155 Baseline Road

157 Elliot Road

158 Warner Road

159 Ray Road

160 Chandler Boulevard

161 → Mesa Loop

162 Wild Horse Pass Boulevard

164 Queen Creek Road

167 Riggs Road

175 Casa Blanca Road

185 Sacaton

190 McCartney Road

194 Florence Boulevard

198 Casa Grande

199 → Yuma / San Diego

200 Arizona City

203 Toltec Road

208 Eloy

211 Coolidge

212 Picacho

219 Picacho Peak Road

226 Red Rock

232 Pinal Air Park Road

236 Marana

240 Tangerine Road

242 Avra ​​Valley Road

244 Twin Peaks Road

246 Cortaro Road

248 Ina Road

250 Orange Grove Road

251 Sunset Road

252 El Camino del Cerro

254 Prince Road

255 Miracle Mile

256 Grant Road

257 Speedway Boulevard

258 Congress Street

259 22nd Street

260 → Nogales

261 6th Avenue

262 Benson Highway

263 Kino Parkway

264 Palo Verde Road

265 Alvernon Way

267 Valencia Road

268 Craycroft Road

269 ​​Wilmot Road

270 Kolb Road

273 Rita Road

275 Houghton Road

279 Wentworth Road

281 Sonoita

289 Marsh Station Road

292 Empirita Road

297 Mescal Road

299 Skyline Road

302 Sierra Vista

303 Benson

304 Benson

306 Benson

312 Sibyl Road

318 Dragoon Road

323 Johnson Road

331 Douglas

336 Willcox

340 Willcox

344 Willcox

352 Thatcher

355 Thatcher

362 Bowie

366 Bowie

378 San Simon

382 San Simon

390 Cavot Road

New Mexico state line → Las Cruces / El Paso

According to IAMACCEPTED, Interstate 10 or I -10 is an Interstate Highway in the U.S. state of Arizona. The highway runs through the south of the state, connecting the largest cities in the state, including the state capital Phoenix and the city of Tucson. Arizona is the fastest growing state in the United Statesand that puts quite a bit of pressure on the existing road network, especially in Phoenix and the metropolitan area. The highway mainly leads through a desert landscape, where it can get extremely hot in the summer to more than 50 degrees. Although the road is an east-west connection, the highway is mainly north-south on some stretches, such as between Phoenix and Tucson. The stretch from I-10 in Arizona is 631 kilometers long.

Travel directions

I-10 at Ehrenberg in western Arizona.

Western Arizona

Interstate 10 in California crosses the Colorado River at Ehrenberg, then enters Arizona. Almost immediately one leaves civilization, with only 2 villages along the route over the next 120 kilometers. The US 95 follows here for a while with the I-10. At Quartzsite, US 95 turns south to Yuma and San Luis Rio Colorado in Mexico. Interstate 10 is not the southernmost east-west highway here, and Interstate 8. runs further south. The landscape is wild and barren, without any vegetation except for some cacti. About 20 kilometers after Quartzsite, US 60 turns northeast to Wickenburg, forming a somewhat longer route to Phoenix. There are warning signs at the parking lots along the highway not to let pets around because of poisonous scorpions and snakes. The highway here is known as the Papago Freeway. Traveling along this section of Interstate 10 can be deadly, when sandstorms sweep across the highway, limiting visibility to the windshield. Major collisions happen here regularly.


The Papago Freeway near Tolleson.

I-10 on the east side of Downtown Phoenix.

At Buckeye you enter civilization again, this is the westernmost suburb of Phoenix. The Phoenix metropolitan area extends for the next 90 kilometers. Turbulent spatial developments are taking place in this area, with the massive construction of new residential areas and suburbs. At Perryville, one crosses the Estrella Freeway, a main road that forms Phoenix’s westernmost ring road. This is where the many neighborhoods built around man-made lakes begin, giving the whole a lively and attractive appearance, apart from temperatures that sometimes reach into the 50s. At Tolleson, State Route turns off 101, Phoenix’s outer highway ring, which is 98 kilometers long. After this begins the grid pattern of the city of Phoenix, which has 1.5 million inhabitants, with more than 4 million in the conurbation. The highway widens here to 2×5 lanes, and has a remarkably good road surface,

Phoenix’s highway network is growing rapidly to keep up with rapid spatial developments and population growth. Besides buses, there is also no public transport in Phoenix, which is not efficient due to the enormous distances within the conurbation. Almost the entire city consists of low-rise and detached houses. On the west side of downtown, Interstate 17. intersects for the first time, which runs around the south side of downtown, and to Flagstaff, in the north of the state. The highway runs through a tunnel, which has 2×5 lanes. On the east side of downtown, I-10 exits south. Straight ahead is the State Route 202 ring road, the Red Mountain Freeway to the eastern suburbs, and to the north goes the Piestewa Freeway, to the northern suburbs of Phoenix. The highway runs past Sky Harbor, Phoenix International Airport. A few miles away, I-10 exits at the second interchange with Interstate 17. It crosses the dried-up Salt River, and the highway is called the Maricopa Freeway.. At the height of the large suburb of Tempe the US 60 turns off, the Superstition Freeway, which leads to Mesa, with 448,000 inhabitants the largest suburb in the United States, and larger than well-known cities such as Cleveland, Miami, Minneapolis or Saint Louis. There is only one suburb in North America that is bigger (Mississauga near Toronto). Mesa should grow to 630,000 inhabitants. In this area manifests the “Urban Sprawl”, ever-spreading residential areas that are playfully set up. State Route 202, Phoenix’s eastern bypass, ends at the south end of Chandler, which is 89 kilometers long. A few kilometers further on, you leave the immense conurbation.

Eastern Arizona

The area south of Phoenix is ​​desert, with some irrigated areas here and there. The highway here is called the Pima Freeway. The next regional city is Casa Grande, where Interstate 8from Yuma and San Diego ends. From here, Interstate 10 runs closest to the Mexican border. The highway turns southeast toward Tucson. In this area there are many new construction projects where one after another residential area in the desert is being built up. This is more or less an overflow area for overcrowded Los Angeles. One passes Picacho pass, at 549 meters altitude. To the south is Saguaro National Park. Steep mountains lie along the highway. In this area you can see a lot of oldtimers driving, because of the extremely dry air cars hardly rust here.

The next major city is Tucson, located 100 kilometers north of the Mexican border, and has a population of one million. However, the highway network in this city is very limited, to only the passage of Interstate 10 through the south, and Interstate 19 that joins here. The highway has 2×3 to 2×4 lanes. Due to the lack of public transport except for the bus, everyone in this sprawling city is dependent on the car. Interstate 10 runs through the city for 25 miles. Interstate 19. closes at South Tucsonfrom here one can go to the border town of Nogales, and further into Mexico towards Hermosillo. On the east side of Tucson, you pass Davis-Monthan Air Force Base, where more than 4,400 aircraft, mostly unused old aircraft, worth $27 billion, are stored under the control of the 309th Aerospace Maintenance and Regeneration Group, ranging from endless rows of jet fighters to the largest bombers.

The highway continues east, passing through a number of small towns. North of the highway is a second part of Saguaro National Park. The landscape is barren and mountainous. You pass Benson, from where you can travel to various towns in the Mexican border region. The amount of traffic on Interstate 10 outside the cities is low. Here and there are exits that actually lead nowhere. A little further you pass Willcox, where the US 191 is double-numbered with the I-10 for a short distance. To the south this road leads to the border town of Douglas, to the north to Thatcher. Just east of San Simon you come to the border, where Interstate 10 continues into New Mexico.


I-10 at Coolidge, south of Phoenix.

According to ACRONYMMONSTER.COM, between 1956 and 1958, the route of I-10 in Arizona was established by the Arizona Highway Department and followed mostly historic routes. Between Phoenix and Tucson, the route was equated with the original horse-drawn carriage routes, which is why this section runs more north-south than east-west. The route was designed in the 1950s and was given a dead-straight westbound route west of Phoenix, rather than a more northwesterly route via US 60 and US 70 through Wickenburg. Residents at the time made frantic efforts to run the highway through Wickenburg, but lost it compared to a shorter route to Los Angeles.

In western Arizona, the first miles were built in the 1960s along the routes of the existing US 60. The last freeway section opened between Los Angeles and Phoenix in the early 1970s. Phoenix was still a fairly insignificant city at the time, unlike the vast metropolis of today. In Phoenix, it took until 1990 for the Papago Freeway to be completed. At the time, traffic still had to use the secondary road network. The construction near downtown Phoenix was a bit of a struggle as it had to be built in the second half of the 1970s, at the time of the Freeway Revolts, when many projects were delayed, canceled or downsized.

The section between Phoenix and Tucson had long since been completed and was completed in phases between 1961 and 1962. The original road between Casa Grande and Tucson was modeled on the German Autobahn. This was the so-called Miracle Mile, but it was not a real highway as there were no grade separated intersections. In the early 1950s, Arizona’s first cloverleaf opened in the city of Tucson. East of Tucson to the New Mexico border, I-10 mainly follows the route of old US 80. A study began in 2008 to build new bypasses for Phoenix and Tucson to “straighten out” I-10, resulting in a shorter I-10. Ultimately, this was not further elaborated. Phoenix and Tucson are both cities with a relatively small highway network, especially in Tucson.

western arizona

The section through western Arizona was constructed more or less at the same time as Interstate 10 in California, the section between the California State Line and US 60 was constructed fairly quickly between 1962 and 1966. In 1972, the desert section opened further to Phoenix.

From Unpleasant Length Opening
Exit 10 Exit 17 12 km 1962
exit 0 Exit 10 16 km 1964
Exit 19 Exit 31 19 km 1964
Exit 17 Exit 19 3 km 1966
Exit 31 Exit 94 101 km 1972

Phoenix metropolitan area

The section through Phoenix is ​​laid out in two distinct time periods. The part from downtown to the south was built first, between 1965 and 1968. The part west of downtown has been delayed time and again, only opening the part through the desert west of Phoenix in 1978, but the part in the city itself was only built in the 1980s. In 1990, the final section opened, the tunnels near downtown Phoenix, completing I-10 through Arizona. By the way, through traffic has been able to use I-17 along downtown, which ran parallel south of I-10, since the early 1960s.

From Unpleasant Length Opening
Exit 150 Exit 153 5 km 1965
Exit 156 Exit 161 8 km 1967
Exit 153 Exit 156 5 km 1968
Exit 94 exit 128 55 km 1978
exit 128 Exit 140 19 km 1984
Exit 140 Exit 142 3 km 1985
Exit 146 Exit 150 6 km 1988
Exit 142 Exit 143 2 km 1989
Exit 143 Exit 146 5 km 10-08-1990

Central Arizona & Tucson

The section through Tucson was completed before the section through Phoenix. This is because Tucson used to be a larger city than Phoenix and had some military importance. The first highway through the Picacho Pass was opened in 1962, as well as the first section through Tucson. The section through Tucson was completed in 1966, and the last sections east of Tucson opened in 1967. In 1968, the link between Phoenix and Casa Grande opened to traffic.

In 2008-2014, I-10 was widened to 2×4 lanes through much of Tucson.

From Unpleasant Length Opening
Exit 212 Exit 232 32 km 1962
Exit 255 Exit 260 8 km 1962
Exit 260 Exit 261 2 km 1964
Exit 232 Exit 240 13 km 1964
Exit 267 Exit 275 13 km 1964
Exit 240 Exit 255 24 km 1966
Exit 198 Exit 212 23 km 1967
Exit 261 Exit 267 10 km 1967
Exit 161 Exit 198 60 km 1968

Eastern Arizona

The oldest parts of Interstate 10 in the state of Arizona are east of Tucson. The first sections opened to traffic in the late 1950s, with most sections completed by 1964. An exception were the Benson, Willcox and San Simon bypasses, which were built later, between 1968 and 1974.

From Unpleasant Length Opening
Exit 289 Exit 290 2 km 1955
Exit 275 Exit 279 6 km 1959
Exit 290 Exit 299 14 km 1959
Exit 322 Exit 336 23 km 1959
Exit 352 Exit 354 3 km 1959
Exit 279 Exit 289 16 km 1962
Exit 299 Exit 303 6 km 1962
Exit 343 Exit 352 14 km 1962
Exit 386 Exit 393 11 km 1962
Exit 311 Exit 322 18 km 1964
Exit 354 Exit 362 13 km 1964
Exit 368 Exit 378 16 km 1964
Exit 378 Exit 386 13 km 1968
Exit 362 Exit 368 10 km 1968
Exit 336 Exit 343 11 km 1969
Exit 303 Exit 311 13 km 1974


I-10 at the Loop 202 interchange in western Phoenix, opening in 2019.


The Papago Freeway west of Downtown Phoenix was built directly in the 1980s with 2×4 lanes. The wide part started just east of Tolleson at the time. With the construction of Loop 101, the section between Avondale and Tolleson was widened to 2×3 lanes around 2000. The viaducts were already wide enough for this at the time. A series of widenings in the western suburbs were carried out between 2007 and 2013, when the highway was widened to 2×5 lanes between Loop 303 and Loop 101, with the western part being widened directly from 2×2 to 2×5 lanes. Parallel to this, between 2010 and 2013, the section between Verrado Way and Loop 303 was widened from 2×2 to 2×3 lanes with left-hand hard shoulder. These can later become HOV lanes.

The Maricopa Freeway has probably been widened several times between Downtown Phoenix and Guadalupe. Presumably the first widening took place in the 1970s when the Superstition Freeway (US 60) was built through the eastern suburbs. The highway may have been partially widened in the late 1980s when the missing link of I-10 was built around Downtown Phoenix. Satellite images suggest that the section between SR-143 and US 60 was widened to 2×5 lanes in the mid-1990s. It is unclear whether the 6th HOV lane was then alsohas been constructed. Presumably around 1998, the section between US 60 and Loop 202 was widened to 2×4 lanes. With the construction of the Loop 202 interchange in the early 2000s, the section further south to Sundust Road was widened to 2×3 lanes in 2003. In 2015, a small widening to 2×3 lanes further to SR-347 was carried out, largely on existing pavement.

On August 23, 2022, a diverging diamond interchange opened west of Phoenix with Miller Road in Buckeye. This was part of a widening of I-10 to 2×3 lanes spanning eight miles between Verrado Way and State Route 85, due to be completed in mid-2023.

Phoenix – Tucson

I-10 in Tucson.

I-10 has gradually widened to 2×3 lanes in more and more places between Phoenix and Tucson. Work initially focused on the southern half of the route, between I-8 at Casa Grande and Tucson.

In 2005, a 10-mile section between Rillito and Cortaro just outside Tucson was widened to 2×3 lanes. Between 2007 and 2009, a 45-kilometer stretch between Picacho and Rillito was widened from 2×2 to 2×3 lanes. Subsequently, in 2011, the section between the interchange with I-8 and Eloy was widened to 2×3 lanes. There was still a remaining 2×2 lane section between Eloy and Picacho. This 6-kilometer section was widened from 2×2 to 2×3 lanes between 2017 and 2019, including a new connection with the SR-87. I-10 was actually constructed here over a length of 3.5 kilometers on a completely new route, this part opened on August 15, 2019. This widened the entire route from I-8 to Tucson to 2×3 lanes.

The highway between the suburbs of Phoenix and I-8 was not widened until later. In 2012-2013 the first 16 kilometers around Casa Grande was widened to 2×3 lanes. In 2019, a major study began to widen the last 42 miles of I-10 between Loop 202 in Phoenix and State Route 387 on the north side of Casa Grande to 2×3 lanes. This study was called the I-10 Wildhorse Pass Corridor.


In the early 1990s, the portion in western Tucson was widened to 2×3 lanes. Between 2007 and 2009, the 9-kilometer section north of I-17 continued to Ruthrauff Road widened to 2×4 lanes.

In the second half of the 1990s, a small section of I-10 east from I-17 was widened to 2×3 lanes, a two-mile stretch to Kino Parkway. The interchange between I-10 and I-17 in Tucson was the original and cramped trumpet interchange. Between 2002 and 2004, the interchange was reconstructed, with a large east-south flyover replacing the loop. An exit to 12th Avenue has also been realized.


The Broadway Curve in Phoenix before the start of widening in 2021.

Broadway Curve in Phoenix

East of downtown Phoenix, traffic is heavily concentrated from the huge suburbs east of the city to downtown. In 2008, 295,000 vehicles were driving on 2×6 lanes every day. There are plans to drastically widen the highway to 2×12 lanes, with a 4+8+8+4 layout. The inner 2 lanes become HOV lanes in each direction.

The project includes 17 kilometers of I-10 between I-17 and Loop 202. The draft EIS was adopted on October 2, 2019, followed by the final EIS on April 27, 2020. Work began on July 23, 2021. [6 ] The project should be completed by the end of 2024.

Cross section alternative 2: 2×12 lanes.

Traffic intensities

I-10 at US 60 in Phoenix.

The starting point of I-17.

# 2013 2016
California state line 24,000 23,000
Exit 1 Ehrenberg 22,000 24,000
Exit 19 Quartz site 21,000 22,000
Exit 31 21,000 22,000
Exit 98 Tonopah 23,000 26,000
Exit 109 Sun Valley Parkway 37,000 32,000
exit 112 39,000 42,000
Exit 114 Miller Road 45,000 44,000
Exit 117 Watson Road 66,000 68,000
Exit 120 Verado Way 74,000 91,000
Exit 121 Jackrabbit Trail 74,000 94,000
Exit 124 79,000 102,000
Exit 126 Pebble Creek Parkway 95,000 102,000
Exit 128 Litchfield Road 142,000 170,000
Exit 129 Dysart Road 123,000 176,000
Exit 131 115th Avenue 132,000 170,000
Exit 133 192,000 219,000
Exit 134 91st Avenue 194,000 218,000
Exit 136 83rd Avenue 189,000 238,000
Exit 136B 75th Avenue 208,000 225,000
Exit 137 67th Avenue 230,000 242,000
Exit 138 59th Avenue 175,000 179,000
Exit 139 51st Avenue 210,000 203,000
Exit 140 43rd Avenue 229,000 239,000
Exit 141 35th Avenue 240,000 250,000
Exit 142 27th Avenue 193,000 191,000
Exit 143 137,000 130,000
Exit 144 7th Avenue 210,000 254,000
Exit 145A 3rd Street 220,000 254,000
Exit 145B 7th Street 275,000 281,000
Exit 147 144,000 154,000
Exit 148 Jefferson Street 179,000 201,000
Exit 149 Buckeye Road 154,000 159,000
Exit 150 240,000 258,000
Exit 151 32nd Street 224,000 243,000
Exit 152 40th Street 197,000 230,000
Exit 153 48th Street 186,000 220,000
Exit 154 281,000 267,000
Exit 154 145,000 149,000
Exit 155 Baseline Road 204,000 211,000
Exit 157 Elliot Road 187,000 195,000
Exit 158 ​​Warner Road 174,000 182,000
Exit 159 Ray Road 104,000 156,000
Exit 160 Chandler Boulevard 108,000 86,000
Exit 161 78,000 101,000
Exit 164 Queen Creek Road 55,000 60,000
Exit 167 Riggs Road 49,000 55,000
Exit 175 Casa Blanca Road 52,000 59,000
Exit 185 Pinal Avenue 46,000 43,000
Exit 194 Casa Grande 47,000 45,000
Exit 199 41,000 42,000
Exit 208 Eloy 42,000 42,000
Exit 240 Rillito 58,000 57,000
Exit 246 Cortaro Road 71,000 97,000
Exit 248 Ina Road 88,000 111,000
Exit 250 Orange Grove Road 107,000 112,000
Exit 251 Sunset Road 120,000 111,000
Exit 252 El Camino Del Cerro 120,000 123,000
Exit 254 Prince Road 129,000 153,000
Exit 255 Miracle Mile 153,000 170,000
Exit 256 Grant Road 172,000 176,000
Exit 257 Speedway Boulevard 172,000 153,000
Exit 258 Congress Street 145,000 177,000
Exit 259 22nd Street 120,000 170,000
Exit 261 86,000 103,000
Exit 263 Kino Parkway 73,000 79,000
Exit 264 Palo Verde Road 62,000 73,000
Exit 265 Alvernon Road 66,000 69,000
Exit 267 Valencia Road 65,000 69,000
Exit 268 Craycroft Road 54,000 63,000
Exit 269 Wilmot Road 49,000 55,000
Exit 270 Kolb Road 50,000 57,000
Exit 273 Rita Road 44,000 47,000
Exit 275 Houghton Road 38,000 40,000
Exit 281 Vail 27,000 29,000
Exit 306 Benson 15,000 16,000
Exit 331 18,000 16,000
Exit 340 Willcox 13,000 14,000
Exit 352 11,000 13,000
Exit 366 Bowie 12,000 12,000
Exit 382 San Simon 14,000 13,000
New Mexico state line 14,000 14,000

Lane Configuration

From Unpleasant Lanes
exit 0 exit 120 2×2
exit 120 Exit 122 2×3
Exit 122 Exit 141 2×5
Exit 141 Exit 144 2×6
Exit 144 Exit 148 2×5
Exit 148 Exit 149 2×4
Exit 149 Exit 150 2×6
Exit 150 Exit 154 2×5
Exit 154 Exit 162 2×4
Exit 162 Exit 164 2×3
Exit 164 Exit 185 2×2
Exit 185 Exit 252 2×3
Exit 252 Exit 259 2×4
Exit 259 Exit 263 2×3
Exit 263 Exit 390 2×2

Interstate 10 in Arizona