Topics Technology & Engineering

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

Grit Chamber, Essen, Germany

PWD water tech at the Philly Home Show, 1960

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

State Street pipeline construction

State Street pipeline construction, 1904

Belmont Filters construction 1903

Belmont Filters construction, 1903

Rudolph Hering

Rudolph Hering

DeLaval Beauty Shots 6

Electric Pump Installations at Lardner’s Point Pumping Station

Engine House of the Belmont Works, R. Newell photo (2004.057.0074.001)

Engine House, Belmont Works

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

Outside Sprinkling Filters, Spring Garden Sewage Experiment Station, 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

Eleven men in a work gang plug leaks in a tunnel, the Torresdale Conduit

Torresdale Conduit work gang, 1906

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

1902 photo of Upper Roxborough Filter beds under construction

Upper Roxborough Filter Bed Construction, 1902