Wagner Covered Bridge No. 19 is a historic wooden covered bridge in Columbia County, Pennsylvania, built in 1856 as a 56.5-foot Queen Post Truss span carrying traffic over the North Branch of Roaring Creek in Locust Township. Typical of small rural covered bridges, it was part of a larger nineteenth-century tradition that once included twenty-eight historic covered bridges in Columbia and Montour counties. Listed on the National Register of Historic Places in 1979, it was dismantled in 1981, stored at Knoebels Amusement Resort, and rebuilt in 1994 at the entrance to a housing development in Hemlock Township, no longer at its original crossing.