Mill Creek Sewer under construction, 1883
Thomas Run sewer outlet during construction
Frankford Creek: Sad History of an Urban Stream title page
Bridge Street Draw. Southwest side of bridge. April 19, 1896. [Detail].
Bureau of Water, Cumberland, west of 13th Street, pipe line, 1907
State Street pipeline construction, 1904
Finished Upper Roxborough filters, 1903
Upper Roxborough filter beds under construction, July 1902
Commencement of laying the main on the East side of the River, 1871
Devereaux Street Sewer, Philadelphia magazine, 1911
