From North:

Take IH-35 South to San Antonio

Keep LEFT to take I-35 S/US-81 S toward LAREDO

Keep LEFT to take I-35 S/I-10 E/US-81 S/US-87 S toward LAREDO

Merge onto US-90 W via EXIT 153 toward DEL RIO

Take the CALLAGHAN RD exit

Merge onto CASTROVILLE RD

CASTROVILLE RD becomes US-90 W

End at 5757 W Us Highway 90 San Antonio, TX 78227-4105 

 

From South:

Take IH-35 North to San Antonio

Merge onto US-90 W via EXIT 153 toward DEL RIO

Take the CALLAGHAN RD exit

Merge onto CASTROVILLE RD

CASTROVILLE RD becomes US-90 W

End at 5757 W Us Highway 90 San Antonio, TX 78227-4105