Penn State Special Collections Library: Three-hinged arch bridge, Schenley Park, Pittsburgh
Penn State Special Collections Library: Simple truss bridge, Philadelphia, Pa.
Penn State Special Collections Library: Simple truss bridge, South Bethlehem, PA
Penn State Special Collections Library: Simple truss bridge and viaduct, Shepps Dam Crossing, Pa
Penn State Special Collections Library: Reinforced concrete arch, Pittsburgh, PA
Penn State Special Collections Library: Three hinged arch bridge, Pittsburgh, PA
Penn State Special Collections Library: Test chord, Pittsburgh, Pa. 1891
Penn State Special Collections Library: Three-hinged arch bridge, Pittsburgh, Pa.
Penn State Special Collections Library: Simple truss bridge, Pittsburgh, Pa., built 1903
Penn State Special Collections Library: Plate girder, Clearfield Junction, Pa, 1904
Penn State Special Collections Library: Simple truss bridge, South Bethlehem, Pa., built 1908
Penn State Special Collections Library: Union bridge, "The Point," Pittsburgh, Pa, 1906
Penn State Special Collections Library: Old Ohio River Bridge, 1910
Penn State Special Collections Library: Three-hinged arch bridge, Pittsburgh, Pa
Penn State Special Collections Library: Segmented stone arch, Schenley Park, Pittsburgh, Pa, 1906
Penn State Special Collections Library: Pan Handle Bridge, Simple truss, Pittsburgh, Pa.
Penn State Special Collections Library: Cresheim Aqueduct, Philadelphia, Pa, 1892
Penn State Special Collections Library: Reinforced concrete high tension transmission tower, 1906
Penn State Special Collections Library: Lowries Run Viaduct, 1906
Penn State Special Collections Library: Technical drawing: Complete design of a modern railroad bridge, 1903
Penn State Special Collections Library: Technical drawing: Complete design of a modern railroad bridge
Penn State Special Collections Library: Technical drawing: Details of one deck plate girder span, 1903.
Penn State Special Collections Library: Atherton Avenue Bridge, Pittsburgh, Pa. Bridge crosses Pennsylvania Railroad. Photo 1914.
Penn State Special Collections Library: Murray Avenue Bridge, Pittsburgh, Pa. Photo 1915.
Penn State Special Collections Library: Murray Avenue Bridge, Pittsburgh, Pa. Photo 1915.
Penn State Special Collections Library: Larimer Avenue Bridge, Pittsburgh, Pa. Photo 1913.
Penn State Special Collections Library: Simple truss bridge, Pittsburgh, Pa. Pittsburgh, Cincinnati, Chicago and St. Louis Railroad bridge crosses Monongahela River.
Penn State Special Collections Library: Corrosion of rivet heads at foot of column, 2nd Avenue, Pittsburgh, Pa. Bridge crosses 2nd Avenue. Photo by C. K. Mohler, 1906.
Penn State Special Collections Library: Corrosion of rivet heads at foot of column, before cleaning two rivets, 2nd Avenue, Pittsburgh, Pa. Bridge crosses 2nd Avenue. Photo by C. K. Mohler, 1906.