Manholes like this give access to city’s sewer system, 1961
Sewer Inspections: Vintage Images
Thomas Run sewer outlet at Cobbs Creek
Thomas Run sewer outlet during construction
Color Diagram of Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia
Captain Sewer and Michael Nutter, 1998
30th Street Sewer
69th St. Sewer and Culvert across Lansdowne AVe.
Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia, 1912
Swimmers at Pier 126, Delaware River, July 15, 1918