Highway Designation File

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


Certified Mileage (Open to Traffic)
39.967 2010

STATE HIGHWAY LOOP NO. 335

Minute Order 047138, dated 01/18/1960; Adm. Cir. 024-1960, dated 02/01/1960

Amarillo Loop - From US 60 and US 87 south of Amarillo in Randall County, eastward and northward to US 287 east of Amarillo in Potter County.  (Randall and Potter Counties)  New Designation.



Minute Order 049002, dated 01/31/1961; Adm. Cir. 038-1961, dated 03/01/1961

From US 60 and US 87 south of Amarillo in Randall County, eastward, northward, and westward to US 87 and US 287 north of Amarillo.  (Randall and Potter Counties)  Extended northward and westward to USís 87 and 287.



Minute Order 056451, dated 07/30/1965; Adm. Cir. 078-1965, dated 08/15/1961

From US 66 southward, eastward, northward, and westward to US 87 and US 287, north of Amarillo.  (Randall and Potter Counties)  Extended westward and northward from USís 60 and 87 to US 66.



Adm. Auth., dated 06/21/1977; Adm. Ltr. 007-1977, dated 07/15/1977

From US 66 southward, eastward, northward, and westward to US 87 and US 287 north of Amarillo.  (Potter and Randall Counties)  New description; section of FM, from SL 434 (old location USís 87 & 287), west approx. 0.1 mile to new location USís 87 and 287 transferred to SL 335.



Minute Order 082116, dated 07/24/1984; Adm. Ltr. 009-1984, dated 09/20/1984

From a junction with IH 40 in east Amarillo, circumferentially around the city to the point of beginning, a total distance of approx. 42.0 miles. (Potter and Randall Counties)  Route extended approx. 10.0 miles from US 66 at SL 335, northward, northeastward, and eastward to US 287.