


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)
View of Fairmount Water Works, ca. 1827

State Road triple pipeline construction, 1904

Torresdale Conduit work gang, 1906
