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Arizona State Route 85

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State Route 85 marker

State Route 85
Route information
Maintained by ADOT
Length: 128.86 mi[1] (207.38 km)
Existed: 1936 – present
Major junctions
South end: Fed. 8 at Mexican border at Lukeville
  I-8 in Gila Bend
North end: I-10 in Buckeye
Location
Counties: Pima, Maricopa
Highway system
  • State Routes in Arizona
← SR 84 SR 86 →

State Route 85 (SR 85) is a 128.86-mile-long (207.38 km) state highway in the U.S. state of Arizona. The highway runs from the United States-Mexico border near Lukeville to the north ending at Interstate 10 (I-10) in Buckeye. The highway also intersects I-8 in Gila Bend and serves as a connector between I-8 and I-10 and for travelers between Phoenix and Yuma as well as San Diego. SR 85 between I-10 and I-8, as well as I-8 between SR 85 and I-10 in Casa Grande, is touted as a bypass of the Phoenix area for long-distance travelers on I-10.

SR 85 was established in 1936 as a route between Gila Bend and Ajo. It was extended southward to the US-Mexico border in 1955, and extended northward to Phoenix when it replaced U.S. Route 80 (US 80) in 1977. The northern end of the highway was realigned in 1994 onto the connecting highway between I-10 and Buckeye. The remaining portion of the highway between Buckeye and Phoenix was gradually turned over to the cities and county along the route during the 1990s with the final portion turned over in 2001.

Route description

The southern terminus of SR 85 is located at the United States-Mexico border near Lukeville in Pima County. The road continues across the border into Mexico to the town of Sonoita as Mexican Federal Highway 8. SR 85 heads north from the border as a two-lane road, passing through the Organ Pipe Cactus National Monument. The highway leaves the monument boundary and heads to a junction with SR 86 in Why. SR 86 heads east from this junction towards Tucson and southeastern Arizona. SR 85 heads northwest from this junction to the town of Ajo. From Ajo, the highway heads north and enters the Barry M. Goldwater Air Force Range. While within the range, the highway enters Maricopa County. After the highway passes through the range, it continues towards the north to a junction with I-8 in Gila Bend. After passing I-8, the highway intersects the business loop of I-8 and turns towards the east to run concurrently with business loop along Pima Street in Gila Bend. The two highways split, with the business loop heading towards the southeast and SR 85 heading northeast providing access to Gila Bend Municipal Airport[1][2]

Markers for SR 85 and two Interstates

SR 85 continues north from Gila Bend towards the Phoenix Metropolitan Area. This stretch of highway north of Gila Bend is a part of the National Highway System.[3] The highway passes near the western edge of the Sonoran Desert National Monument and also provides access to the Buckeye Hills Recreational Area. SR 85 continues northward to a crossing of the Gila River as it nears Buckeye. The highway intersects Buckeye Road which is where the original routing of US 80 and later SR 85 followed into Phoenix before being rerouted onto its current alignment. The highway continues towards the north, crossing over the Buckeye Canal before reaching its northern terminus at exit 112 on I-10.[1][2]

History

The first numbered highway along the SR 85 corridor was established in 1927 between Gila Bend and Phoenix as US 80. At the time, it was only paved from Phoenix to Hassayampa. Although not paved between Hassayampa and Gila Bend, it was an improved road.[4] This original routing of US 80 still exists as Old US 80 west of the SR 85 alignment.[5] A dirt road between Gila Bend and Ajo did exist at this time, but it was not a part of the state highway system.[4] By 1935, the entire route of US 80 between Gila Bend and Phoenix had been paved. The road south of Gila Bend had also been improved to a gravel road.[6]

In 1936, SR 85 was established, but it only extended as far north as Gila Bend and as far south as Ajo.[7] By 1938, SR 85 had been paved as well as the portion between Ajo and Why that would eventually become part of SR 85. The portion between Why and the border with Mexico began showing up on maps at this time as a gravel road.[8] In 1943, the portion of the highway between Ajo and Why was added to the state highway system, but as SR 86, when it was extended west from Tucson to Ajo.[9] In 1955, the highway was extended to Lukeville at the United States-Mexico border with an overlap with SR 86 between Ajo and Why when a county road was added to SR 85.[10]

In 1973, the connector between I-10 and Baseline Road was established, and was redesignated in 1978 as a spur route of SR 85.[11] As the old, indirect US 80 was removed from Arizona, SR 85 was extended north in 1977 over the old alignment of US 80 to Buckeye and extended east to Phoenix.[12] Portions of the route in Buckeye and Phoenix were turned over to their respective cities for maintenance in 1990.[13] The following year, a portion of the highway between Avondale and Phoenix was turned over to Maricopa County for maintenance.[14] Also in 1991, the overlap between SR 85 and SR 86 was eliminated and the western terminus of SR 86 was changed to its junction with Route 85 in Why.[15] In 1994, the northern end of SR 85 was moved onto the SR 85 Spur that connected to I-10 and the remaining portions along the old alignment to the east were redesignated as a temporary route of SR 85.[16] In 1999, the portion of the old route in Avondale was turned over to the city for maintenance.[17] The portion of the old route around the state capitol complex, the last remaining section of the old route between Phoenix and Buckeye, was turned over to the city of Phoenix in 2001.[18]

Future

The segment of SR 85 between Buckeye and Gila Bend is a connector between I-8 and I-10, and serves both as a connector from I-8 from San Diego, California to Phoenix. This segment is being upgraded to a divided highway, and is planned to become a freeway.[citation needed] Most of the four-lane road upgrades have already been completed.[19]

Major intersections

The mileposts north of Gila Bend reflect the mileage of old US 80 in proximity to the California state line.[20]


County Location mi[21] km Exit Destinations Notes
Pima Lukeville 80.69 129.86 Fed. 8 south Lukeville Port of Entry at Mexico–United States border; continues south as Mexican Federal Highway 8
Why 53.06 85.39 SR 86 east – Tucson Western terminus of SR 86
Maricopa Gila Bend 0.58 0.93 I-8 east – Tucson Exit 116 on I-8; access to I-8 WB is via Pima Street
0 0 I-8 BL west – San Diego South end of concurrency with I-8 Bus.
120.32 193.64 I-8 BL east – Tucson North end of concurrency with I-8 Bus.
120.67 194.20 Maricopa Road To SR 238
Buckeye 138.6 223.1 138 Lewis Prison Road to Patterson Road Interchange, to Lewis Prison Complex
Future I-11 (Hassayampa Freeway) Future interchange[22]
150.49 242.19 CR 85 east – Buckeye Planned interchange, western terminus of CR 85
SR 30 (I-10 Reliever) Future interchange[22]
153.81 247.53 — I-10 – Phoenix, Los Angeles Exit 112 on I-10
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

References

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  11. ↑ Lua error in package.lua at line 80: module 'strict' not found.
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  13. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  14. ↑ Lua error in package.lua at line 80: module 'strict' not found.
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  19. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  20. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  21. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  22. ↑ 22.0 22.1 Lua error in package.lua at line 80: module 'strict' not found.

External links

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  • Media related to Lua error in package.lua at line 80: module 'strict' not found. at Wikimedia Commons
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