Items

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

A Roman aqueduct in Segovia, Spain, 2006

Roman Aqueduct in Segovia, Spain

Black-and-white photo of industrial tank installation with smokestacks and factories in the background

Emscher Tank Installation at 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 photo of heavy machinery

Sludge Presses for Grease Recovery, Bradford, England

Black-and-white image of a tray with three compartments and four small glass cylinders

Drain water from sludges obtained from sedimentation, septic and Emscher tanks

Black-and-white image showing a man standing in a large concrete half-pipe

Thomas Run sewer outlet during construction

Black-and-white image showing a factory, smokestacks and smoke, and streets

Dobson’s Mill, 1884, from History of Philadelphia by Scharf & Wescott

Black-and-white image of a refinery with smokestacks emitting smoke

A Day in the Ma’sh – Oil Refinery

Black-and-white image of the title page of a government report

Perkiomen Water Supply Surveys, 1866

Black-and-white image of workers in a pit with a sewer opening behind them and text

Frankford Creek: Sad History of an Urban Stream title page

Black and white photo showing a wooden truss bridge over a creek

Wood truss drawbridge, Orthodox Street over Frankford Creek, rebuilt 1899

Black and white photo of square archways over a bridge

Bridge Street Draw, view through bridge, July 26, 1897