- South Llano River Bridge - Junction TXThe South Llano River Bridge is a 1424 foot steel through truss bridge with a 24-foot wide roadway that carries Texas State Highway Loop 481 over the South Llano River in Junction, Texas. The bridge replaced a functionally obsolete truss bridge with a 14-foot roadway that flooding had damaged in 1935. Although repaired, the Texas Highway Department engineers felt a sense of urgency to replace the old bridge. The new bridge was built between 1936 and 1937 with federal aid funds. A bronze plaque embedded in the railing at each entrance to the bridge identifies the Texas Highway Department and...