U.S. Route 180 is an east–west United States highway. Like many three-digit routes, US 180 no longer meets its "parent", US 80. US 80 was decommissioned west of Mesquite, Texas, and was replaced in Texas by Interstate 20 and Interstate 10 resulting in U.S. 180 being 57 miles longer than U.S. 80. The highway's eastern terminus is in Hudson Oaks, Texas (west of Fort Worth, near Weatherford), at an intersection with Interstate 20. Its western terminus is unclear. Signage at an intersection with State Route 64 in Valle, Arizona 40 miles (64 km) northwest of Flagstaff indicates that the route starts at SR 64, which is consistent with the AASHTO U.S. Highway logs. However, many maps continue the US 180 designation to the south rim of the Grand Canyon at Grand Canyon Village. Signage at the SR 64 intersection as of 2021 indicated that US 180 continues north concurrent with the route. However, no signage along the route exists past this intersection until SR 64 turns east towards Cameron, Arizona. At this intersection, signage makes no mention of US 180 nor is there any mention at the terminus of SR 64 at US 89.
In Flagstaff, US 180 is concurrent with Interstate 40 Business and historic U.S. Route 66 for a short distance through the city. US 180 joins the former routing of Route 66 in the center of Flagstaff and follows the roadway to where it merges with Interstate 40 east of the city. From the western terminus of the overlap, the intersection with eastbound Interstate 40 is two miles (3 km) to the east, and the intersection with westbound Interstate 40 and with Interstate 17 is three miles (5 km) to the southwest.
The northern side of the triple concurrency of US 60/180/191
US 180 west of Weatherford, TexasDedication ceremony of brick-paved roadway between Mineral Wells, Texas, and Weatherford, Texas, in 1936. This stretch was designated as part of US 80 at the time.
The speed limit is 75 mph in Hudspeth and Culberson counties except through Guadalupe Pass. beginning just over 1/2 mile east of mile marker 52 to the state line at FM 652.
History
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U.S. Route 180 (US 180) was originally proposed in 1943 as an extension of US 80 Alternate. At the time, US 80 Alt. ran entirely within Texas, from Abilene to Weatherford. The proposed re-routing and extension would remove US 80 Alt. between Abilene and Albany and extend the designation through New Mexico via Hobbs and Carlsbad, to US 80 in El Paso. The proposed route would be concurrent with US 62 between El Paso and Seminole. The American Association of State Highway Officials (AASHO) was willing to approve the request but recommended the route be re-designated with a different number. As a result, the highway was approved and commissioned at the 1943 AASHO Annual Meeting as US 180.[5] On October 7, 1961, the entire route of US 260 became part of a western extension of US 180.[6]
^U.S. Route Numbering Committee (1935). [Report of the U.S. Route Numbering Committee to the Executive Committee](PDF) (Report). Washington, DC: American Association of State Highway Officials. p. 38. Retrieved June 25, 2023 – via Wikimedia Commons. U.S. 260, Arizona, New Mexico. U.S. 260 is extended from Springerville, Arizona, via Alpine. New Mexico: Irma, San Francisco, Glenwood, Cliff, Silver City, Hurley, to Deming.
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