Arizona State Route 366

Infobox road
marker_

state=AZ
highway_name=
name_notes=
type=state
route=366
alternate_name=
maint=ADOT


length_mi=28.33
length_round=2
length_ref=cite web |url=http://tpd.az.gov/data/reports/2006SHSLog.pdf |title=2006 ADOT Highway Log |author=Arizona Department of Transportation|accessdate=2008-04-08]
length_notes=
established=
decommissioned=
direction_a=West
starting_terminus=Near Mount Graham
junction=
direction_b=East
ending_terminus=jct|state=AZ|US|191 at Swift Trail Junction
previous_type=AZ
previous_route=364
next_type=AZ
next_route=373
commons=

State Route 366 (SR 366) is a highway in Graham County, Arizona that runs from its junction with US 191 south of Safford to near the summit of Mount Graham. It is a winding mountain road with one half primarily a northwest-southeast route, the other half being northeast-southwest.

Route description

SR 366 is a convert|28.33|mi|km|2|sing=on highway that connects Mount Graham with US 191 at Swift Trail Junction south of Safford. The western terminus of the highway is located near a ranger station near the peak of Mount Graham. The highway heads in a southeastern route as it descends the mountain. There are several hair pin turns as the highway follows the terrain. At Turkey Flat, the highway goes through a series of five hair pin turns. The highway also begins to generally head in a northeasterly direction from this point on. The terrain eventually smooths out and the highway follows a straight path towards the northeast to its eastern terminus at US 191.

SR 366 traverses sparsely inhabited forest and mountain terrain and does not pass through any cities or towns aside from minor settlements. The highway does provide access to Mount Graham, one of the higher peaks in Arizona at over 10,000 feet. It also provides access to the Mount Graham International Observatory. [cite map|publisher=Google Maps|title=Overview map of SR 366|accessdate=2008-04-11|url=http://maps.google.com/maps?f=d&hl=en&geocode=10201275050011917128,32.729450,-109.714610%3B6850076924478380977,32.702627,-109.911132&saddr=AZ-366+%4032.729450,+-109.714610&daddr=AZ-366+%4032.702627,+-109.911132&doflg=ptk&sll=32.6979,-109.904737&sspn=0.049766,0.079994&ie=UTF8&z=12]

History

SR 366 was established in 1960 from a junction with US 666 (now US 191) to the southwest for convert|6.3|mi|km|1. [cite web|url=http://www.azhighwaydata.com/resolutions/?resnum=1960-%20-116|title=ADOT Right-of-Way Resolution 1960-116|author=Arizona Department of Transportation|accessdate=2008-05-07] Later that same year, it was extended an additional convert|22|mi|km|0 to the Columbine Ranger Station. [cite web|url=http://www.azhighwaydata.com/resolutions/?resnum=1961-%20-070|title=ADOT Right-of-Way Resolution 1961-070|author=Arizona Department of Transportation|accessdate=2008-05-07] At this time the road was a gravel road providing access to the Coronado National Forest. [cite map|url=http://www.arizonaroads.com/maps/index.html|publisher=Rand McNally|year=1961|accessdate=2008-05-07|title=Road Map of Arizona] Since that time, the easternmost convert|21.7|mi|km|1 have been paved while the rest remains as a gravel road.

Junction list

The entire route is in Graham County.

References

External links

* [http://www.arizonaroads.com/arizona/az366.html Arizona Roads]