Still photo from a video sewer inspection, 2000
Mill Creek Sewer under construction, 1883
1779 Revolutionary War-era map of Philadelphia and environs
The Journey of Your Flush
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