Birch’s Views of Philadelphia, 1800
Cobbs Creek: A Brief Historical Overview by Adam Levine
Beauty from Utility: The Architect of the Southwest Sewage Pumping Station
Pipeline being laid in Wissahickon Avenue
Northeast Philadelphia history, one page at a time: The Holmesburg Library Scrapbook Collection
Down Under!
Mill Creek Sewer under construction, 1883
Fairmount Gardens with the Schuylkill Bridge, 1839
Fairmount Water Works, W.H. Bartlett, 1839
Fairmount Water Works from the forebay, 1833