U.S. Route 366 (1932–1939)

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U.S. Highway 366

Route information
Auxiliary route of US 66
Maintained by New Mexico State Highway Department
Length73 mi[1] (117 km)
Major junctions
West end US 66 / US 85 / NM 6 in Albuquerque
East end US 60 / NM 41 in Willard
CountryUnited States
StateNew Mexico
Highway system
  • New Mexico State Highway System

U.S. Route 366 or US 366 was the designation of two child routes of the former U.S. Route 66 in New Mexico and Texas during the late 1920s and 1930s. Both alignments of US 366 were original U.S. Routes created in 1927. The first alignment was a route from El Paso, Texas to Amarillo, Texas crossing through New Mexico that existed until 1932. The second was a route from Albuquerque to Willard that was previously designated U.S. Route 470 before 1932. That alignment was canceled in 1939.


This iteration of US 366 replaced US 470 in New Mexico, which was also one of the original routes of the 1927 AASHO log.[1] The parent route of U.S. 470 was US 70 which it met at Willard.[3] The route as published proceeded from Willard through Moriarty ending at Albuquerque for at total of 73 miles (117 km).[1] US 470 followed part of the route of NM 41 north from Willard to Moriarty, and NM 6 west to Albuquerque where it ended at the combined route of US 66 and US 85.[3] US 470 was renamed US 366 when US 70 was relocated southward over the previous US 366 ending the parent route connection, but creating a new one with US 66.[2] In the late 1930s, US 66 was rerouted south from its original path through Santa Fe[3] over to NM 6 from Albuquerque to Santa Rosa including the section of US 366 west of Moriarty.[4] At that time, US 366's designation was canceled,[2] and the portion between Willard and Moriarty retained its NM 41 designation.[4] The segment between Albuquerque and Moriarty is now part of I-40[5] and NM 333.[6]

Route description

The final alignment of US 366 began at the intersection of NM 6 with the combined routes US 66 and US 85 at Albuquerque in Bernalillo County. The route proceeded to the east along NM 6 and intersected NM 10 at Tijeras. The route then passed through Barton and then crossed the southwestern corner of Santa Fe County. The route then entered Torrance County where the route intersected NM 41 at Moriarty. The route then turned south along NM 41 and passed through Estancia before terminating at US 60 just west of Willard.[4][3]

The 1930 state highway map described the route as a first class road usable all year. From Albuquerque to a point just west of Tijeras, the highway had an oiled and concrete surface. From that point to Barton, the highway had a gravel surface. From Barton to Moriarty, the surface was graded, and the surface was gravel beyond Moriarty to Willard.[3]

Major intersections

BernalilloAlbuquerque00.0 US 66 / US 85 / NM 6 west – Los Lunas, Santa FeWestern end of NM 6 overlap
Tijeras1626 NM 10
Santa FeNo major intersections
TorranceMoriarty3963 NM 6 east / NM 41 north – Santa Fe, Santa RosaEastern end of NM 6 overlap; northern end of NM 41 overlap
Estancia5589 NM 15
Willard66106 US 60 / NM 41 south – Socorro, Fort SumnerSouthern end of NM 41 overlap
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b c United States Numbered Highways (1927 ed.), American Association of State Highway Officials, p. 46
  2. ^ a b c Weingroff, Richard F. (June 18, 2003). "U.S. 666: "Beast of a Highway"?". Highway History. Washington, DC: Federal Highway Administration, U.S. Department of Transportation. Section: Later Changes. Retrieved April 9, 2011. {{cite web}}: External link in |work= (help)
  3. ^ a b c d e Road Map of New Mexico (PDF) (Map) (1930 ed.). Cartography by B.C. Broome, K.M. Zook. New Mexico State Highway Commission. Archived from the original (PDF) on September 29, 2011. Retrieved April 6, 2011.
  4. ^ a b c Official Road Map of New Mexico (PDF) (Map) (1941 ed.). Cartography by Jorgensen. New Mexico State Highway Department. Archived from the original (PDF) on September 29, 2011. Retrieved April 6, 2011.
  5. ^ "Interstate Routes" (PDF). New Mexico Department of Transportation. Archived from the original (PDF) on July 23, 2011. Retrieved April 7, 2011.
  6. ^ "State Routes" (PDF). New Mexico Department of Transportation. p. 18. Retrieved April 7, 2011.
  7. ^ Official Road Map of New Mexico (PDF) (Map). New Mexico State Highway Department. January 8, 1937. Archived from the original (PDF) on March 17, 2016. Retrieved March 3, 2016. {{cite map}}: |archive-date= / |archive-url= timestamp mismatch; March 7, 2016 suggested (help)