Items

Historic resources from our archives - images, maps, documents, and more.

Six people and dozens of sandbags performing a load test on a concrete pipe, 1914

Pipe Test, 1914

Centerfold of 1955 brochure depicting the Southeast Sewage Treatment Works

Southeast Sewage Treatment Works diagram, 1955

Spring Garden Sewage Experiment Station, used to test water filtration methods

Outside Sprinkling Filters, Spring Garden Sewage Experiment Station, 1911

Devereaux Street Sewer on the cover of Philadelphia magazine, 1911

Devereaux Street Sewer, Philadelphia magazine, 1911

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

Black-and-white photograph showing the completed Upper Roxborough Filter system. Vaulted concrete ceiling with beds of filter sand.

Upper Roxborough Filter Beds Complete, 1903

Jonval Turbines at New Mill House, 1870