Item Types Image

Fairmount Water Works and the Lemon Hill Observatory

Photograph of Roberts Mill on Wingohocking Creek in Germantown, built in the late 17th century. (Photograph by J. C. Browne, 1871. Castner Collection/Free Library of Philadelphia)

Roberts Mill, Wingohocking Creek, 1871

A man in glasses listening to the street through stethoscopes (2012.002.0043)

Listening for leaks

men standing around a trench with pipes seen crossing through it. there is a steam engine on wheels behind them to the left, and a building in the background on the right with a sign they says Hotel Abbey, T G Schmidt & Sons, Pilsner & Puritan Beer.

Pipeline being laid in Wissahickon Avenue

A section of wooden water pipe, long out of service, removed from a Philadelphia street in 1901. It had been installed about 1801.

Wooden Water Pipe, removed from Market Street, December 6, 1901

Bethlehem Water Works, 2011

Black-and-white photo of a man standing in a long trench

Sludge Drying Beds, Essen Nord, Germany

Black-and-white photograph of a man in a hat standing in a brick trench

Grit Chamber, Essen, Germany

Black-and-white image of two cylinders on a white surface

Effects of Expansion of Gas Bubbles in Enscher Sludge Shown in Right-Hand Cylinder

PWD water tech at the Philly Home Show, 1960

PWD water tech at the Philly Home Show, 1960 (detail)

Lab tech at Philly Home Show, 1960

Lab tech, water cleaning demo, Philly Home Show, 1960

Torresdale Conduit work gang, 1906

Torresdale Conduit work gang, 12/18/1906