Transportation Planning and Programming Division
Current Description-Effective Date-Authority

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U. S. HIGHWAY NO. 66

Original Description per Administrative Circular No. 016-1944

1927 - Beginning at the Oklahoma/Texas State Line at Texola via Claude, Amarillo, and Ontario to the Texas/New Mexico State Line west of Glen Rio.

1929 - Claude 29, Amarillo 21, Wildoredo 50,  Glen Rio 46.

07/01/1932 - Amarillo 21, Wildoredo 50,  Glen Rio 46.

03/01/1935 - Amarillo 21, Wildoredo 50,  Glen Rio 46.

01/01/1939 - Amarillo 21, Wildoredo 50,  Glen Rio 46.

05/01/1942 - Shamrock 93, Amarillo 35, Vega 36,  Glen Rio 46.

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Minute Order 016701, dated 09/26/1939

From the Texas/Oklahoma State Line near Benonine via Shamrock, Amarillo, and Vega to the Texas/New Mexico State Line near Glenrio.  General re-description of Highway System.

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Minute Order 082999, dated 04/18/1985 Adm. Ltr. 008-1985, dated 08/19/1985

Cancelled.  (Carson, Deaf Smith, Donley, Gray, Oldham, Potter and Wheeler Counties)  In a joint request by the Admin., Dists. 4 and 25, US 66 designation cancelled from the New Mexico State Line eastward to the Oklahoma State Line, total approx. distance of 177.1 miles.

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