Mill Creek Sewer under construction, 1883
Thomas Run sewer outlet at Cobbs Creek
Thomas Run sewer outlet during construction
Cohocksink Sewer System outlet at Laurel Street
Centennial Exhibition situation plan, 1876
69th St. Sewer and Culvert across Lansdowne AVe.
Outhouse over the Schuylkill near Pottstown
Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia, 1912
Pennypack Sewage Treatment Works, 1914
Bingham Street Sewer, East of Tacony Creek, 1921