Highway Designation File

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

Certified Mileage (Open to Traffic)
49.488 2010


Approved BPR, dated 10/01/1959; Adm.Cir. 180-1959, dated 10/16/1959

From a junction with IH 10 north of Balcones Heights in northwest part of San Antonio, southwestward, southeastward, eastward and northward to a junction with IH 35 near Fort Sam Houston in east part of San Antonio.  New Designation

Minute Order  062561, dated 07/31/1969; DOT Ltr, dated 07/7/1969; Adm Cir 062-1969, dated 08/15/1969

From IH 35 at Fratt westward, southward, eastward and northward to another point on IH 35 near Fort Sam Houston. (Bexar County)  SL 410 combined to provide IH Loop around City of San Antonio.