Highway Designation File

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

Certified Mileage (Open to Traffic)
12.799 2010


Minute Orders 046960 and 046967, dated 11/24/1950; Adm. Cir. 015-1960, dated 01/15/1960

From FM 491 approximately 3 miles south of FM 1422 eastward to Cameron County Line, thence eastward near and along Cameron/Willacy County Line to FM 506, a distance of approximately 4.9 miles.  (Hidalgo, Cameron, and Willacy Counties)  New Designation.

Minute Order 057673, dated 05/05/1966; Adm. Cir. 059-1966, dated 07/01/1966

From FM 491, 3.0 miles south of FM 1422, eastward to FM 506, and from a point on US 77 at Sebastian, eastward to FM 507, a total distance of approximately 13.1 miles.  (Hidalgo, Cameron, and Willacy Counties)  Section from Sebastian eastward approximately 8.2 miles to FM 507 added.