Highway Designation File

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


Certified Mileage (Open to Traffic)
21.684 2010

STATE HIGHWAY LOOP NO. 13

Minute Order 016701, dated 09/26/1939

San Antonio Loop - From the T&NO-MP Overpass near Kelly Field, via an intersection with US 81 southwest of San Antonio and extending eastward to cross US 281 at a point south of Pyron Rd; thence across the San Antonio River and US 181; thence to an intersection with W.W. White Rd northeast of Salado Creek; thence northward along W.W. White Rd to an intersection with US 90; thence to a point on US 81 north of the Fratt underpass. General redescription of Highway System.



Minute Order 017216, dated 05/09/1940

From a point 0.186 mile west of the T&NO Railroad near Kelly Field, via an intersection with US 81 southwest of San Antonio and extending eastward across US 281 at a point south of Pyron Rd; thence across the San Antonio River and US 181; thence to an intersection with W.W. White Rd northeast of Salado Creek; thence northward along W.W. White Rd to an intersection with US 90; thence to a point on US 81 north of the Fratt underpass. Extension from a point 0.186 mile west of the T&NO Railroad, across the T&NO Railroad (takes in grade separation project as constructed).



Minute Order 018758, dated 11/24/1941

From a point on US 90 west of San Antonio to a point 0.186 mile west of the T&NO Railroad near Kelly Field, via an intersection with US 81 southwest of San Antonio and extending eastward across US 281 at a point south of Pyron Rd; thence across the San Antonio River and US 181; thence to an intersection with W.W. White Rd northeast of Salado Creek; thence northward along W.W. White Rd to an intersection with US 90; thence to a point on US 81 north of the Fratt underpass.  Extended from a point 0.186 mile west of the T&NO Railroad near Kelly Field, northward to a point on US 90 west of San Antonio.



Minute Order 023021, dated 04/14/1947; Adm. Cir. 022-1948

From a point on US 90 west of San Antonio to a point 0.186 mile west of the T&NO Railroad near Kelly Field, via an intersection with US 81 southwest of San Antonio and extending eastward across US 281 at a point south of Pyron Rd; thence across the San Antonio River and US 181; thence to an intersection with W.W. White Rd northeast of Salado Creek; thence northward along the W.W. White Rd to an intersection with US 90; thence to a point on US 81 north of the Pratt underpass; and thence from US 81 near the Pratt underpass westward to a junction with Military Rd between Ft. Sam Houston and Camp Bullis.  (Bexar County)  Section from US 81, near Fratt underpass, westward to a junction with Military Rd between Ft. Sam Houston and Camp Bullis added (2.7 miles).



Minute Order 027162, dated 07/15/1949

From a point on US 90 west of San Antonio, southeastward via an intersection with US 81 at or near the south city limits of San Antonio; thence eastward along Military Dr crossing US 281 at a point south of Pyron Rd; thence eastward across the San Antonio River and US 181 to an intersection with W.W. White Rd east of Salado Creek; thence northward along W.W. White Rd crossing US 90 east of San Antonio to a connection with US 81 Interstate south of Fratt, and from a point on present US 81 southwest of the Fratt underpass westward along Zercher Rd to a junction with Military Rd; thence westward along Military Rd to US 281 north of San Antonio.  (Bexar County)  Added section from junction with Military Rd, 2.7 miles west of US 81 westward to US 281 north of San Antonio, a distance of approximately 4.75 miles, which includes 1.05 miles of Wye connections.



Minute Order 032277, dated 06/25/1952

From a point on US 90 west of San Antonio, southeastward via an intersection with US 81; thence eastward along Military Dr crossing US 281 at a point south of Pyron Rd; thence eastward across the San Antonio River and US 181 to an intersection with W.W. White Rd east of Salado Creek; thence northward along W.W. White Rd crossing US 90 east of San Antonio to a connection with US 81 Interstate south of Fratt; and from a point on present US 81 southwest of the Fratt underpass, westward along Zercher Rd to a junction with Military Rd; thence westward along Military Rd to US 281 north of San Antonio; thence westward and southward to US 90 west of San Antonio. Extended westward and southward to US 90 west of San Antonio.



Adm. Auth., dated 10/05/1960; Adm. Cir. 163-1960

From US 90 west of San Antonio, southeastward and eastward along Military Dr to W.W. White Rd east of Salado Creek; thence northward along W.W. White Rd to a point at or near the intersection of IH 410 and IH 35.  (Bexar County)  Section from US 90 west of San Antonio, northward and eastward to IH 10 now a part of IH 410.  Section from IH 10 eastward to US 81, southwest of Fratt underpass, transferred to SL 410.



Minute Order 058583, dated 10/28/1966; Adm. Cir. 133-1966, dated 12/01/1966

From US 90 west of San Antonio, southeastward and eastward along Military Dr to W.W. White Rd, east of Salado Creek; thence northerly to IH 10.  (Bexar County)  Section from IH 35 southward to Seale Rd now a part of IH 410; section from Seale Rd southward to IH 10 removed from the designated highway system.



Minute Order 073943, dated 01/24/1978; Adm. Ltr. 003-1978, dated 03/15/1978

From US 90 west of San Antonio, southeastward and eastward along Military Dr to W.W. White Rd east of Salado Creek; thence northward to IH 410.  (Bexar County)  New description; extended northward approx. 0.9 mile from IH 10 to IH 410.