Rush's Mill Bridge, Spanning Plum Creek at North end of Union Canal Bicycle & Walking Trail, Sinking Spring, Berks County, PA
Significance: Rush's Mill Bridge is one of a small number of composite cast- and wrought-iron bridges yet remaining in the U.S. It is also one of the few existing examples employing the Howe-truss form in which the cast diagonals are compression members and the wrought-iron vertical elements are tension members.
Unprocessed Field note material exists for this structure: N25
Survey number: HAER PA-211
Building/structure dates: 1869 Initial Construction
Building/structure dates: after. 1975- before. 1980 Subsequent Work
Building/structure dates: 1980 Subsequent Work