Subjects Public Event

Tour or lecture or other event to which the public is invited. In the context of this website, this could mean either an event that has happened in the past or one that is scheduled for the future.

Black and white photo of men on a wooden bridge outcropping

Bridge Street Draw, Cofferdam, ca 1896 [Detail]

Black and white photo of a man checking his watch in front of a creek with construction around it

Bridge Street Draw, looking north, ca. 1896

Bridge Street Draw, Cofferdam, ca. 1896

Photo of a work crew constructing a sewer in Rock Run, Tacony Creek, Philadelphia

Sewer construction, Rock Run, 1922

Two black-and-white photographs of pipeline construction on State Road. Depicted are a group of people, trees, buildings, a fire hydrant and a grid of boards over the pipes.

State Road triple pipeline construction, 1904