Wire Bridge at Fairmount, with canal lock and esplanade (Picturesque America)
Last gasp of the Schuylkill Interceptor, December 20, 1956
Wissahickon Pipe Aqueduct, Roxborough to Mt. Airy, 1868
Queen Lane Pumping Station, proposed design
Centre Square Water Works, Frederick Graff, Sr. Plans, 1799
Mill Creek Sewer under construction, 1883
Fairmount Gardens with the Schuylkill Bridge, 1839
Fair Mount Water Works engine house, 1819
Dobson’s Mill, 1884, from History of Philadelphia by Scharf & Wescott
Color Diagram of Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia