“Philadelphia Underground,” Jan. 29, 1961
State Street pipeline construction, 1904
Electric Pump Installations at Lardner’s Point Pumping Station
Standard Philadelphia (B) Hydrant
Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia, 1912
New Mill House at Fairmount
Water Works Standpipe, 1853
Lancaster/Schuylkill Bridge (Upper Ferry Bridge)
Outside Sprinkling Filters, Spring Garden Sewage Experiment Station, 1911
State Road triple pipeline construction, 1904
