U.S. Federal Route 181 runs briefly in Southeastern Bexar County. It runs from Interstate 37, near Southton, to the Bexar/Wilson County Line, near Saspamco. U.S. Rt. 181 passes through the following town in Bexar County. San Antonio U.S. Rt. 181 is not multi-plexed in Bexar County. U.S. Rt. 181 intersects the following highways in Bexar County. Interstate 37, at San Antonio. Texas State Spur 122, at San Antonio. Texas State Loop 1604, near Elmendorf.
A set of guide markers on SB U.S. Rt. 181. Photo from: Paul Dienhart
9 September 2015 Shield at the top of the page from: Paul Dienhart
