Arizona State Route 78
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| State Route 78 |
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| Maintained by ADOT | |||||||||||||
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| Length: | 19.47 mi[1] (31.33 km) | ||||||||||||
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| West end: |  US 191 |
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| East end: |  NM 78 |
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State Route 78 (or SR 78) is a state highway in eastern Arizona that stretches between its junction with U.S. Route 191 and State Route 75 near Greenlee County Airport east to the New Mexico border at Mule Creek, where it continues at New Mexico State Road 78. It is also known in its Arizona stretch as Mule Creek Road.
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[edit] Route description
The western terminus of SR 78 is located at a junction with US 191 and SR 75 at Three Way near Greenlee County Airport. The highway heads northeast from this intersection along Mule Creek Road. There are a few hairpin turns along this stretch of highway as it follows the surrounding terrain. SR 78 reaches it eastern terminus at the New Mexico border where it continues as New Mexico State Road 78.[1][2]
[edit] History
The highway was designated as SR 78 in 1959, but the road had existed prior to it being designated.[3] The road was shown on maps as far back as 1927. Its counterpart in New Mexico was already marked as New Mexico State Road 78 by this time.[4] By 1938, it was still just a gravel road as were many roads in the area including US 666.[5] It would remain a gravel road in 1961, even after becoming a state highway. The other state highways in the area were paved by this time including the majority of its counterpart in New Mexico.[6] By 1971, nearly the entire highway had been paved with the exception of a portion near the New Mexico border.[7]
[edit] Junction list
The entire route is in Greenlee County.
| Mile[1] | Junction | Notes |
|---|---|---|
| 0.00 |  US 191 / SR 75 |
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| 19.47 | NM 78 |
[edit] References
- ^ a b c Arizona Department of Transportation. 2006 ADOT Highway Log. Retrieved on 2008-04-09.
- ^ Google Maps. Overview map of SR 78 [map]. Retrieved on 2008-04-23.
- ^ Arizona Department of Transportation. ADOT Right-of-Way Resolution 1959-079. Retrieved on 2008-05-05.
- ^ Rand McNally. Auto Road Map of Arizona and New Mexico [map]. (1927) Retrieved on 2008-05-05.
- ^ Rand McNally. Road Map of Arizona and New Mexico [map]. (1938) Retrieved on 2008-05-05.
- ^ Rand McNally. Road Map of Arizona [map]. (1961) Retrieved on 2008-05-05.
- ^ Arizona State Highway Department. Road Map of Arizona [map]. (1971) Retrieved on 2008-05-05.
