Subjects Engineering

The application of scientific principles to practical ends as the design, construction, and operation of efficient and economical structures, equipment, and systems; also the profession of or the work performed by an engineer. Good practices in the various subdivisions of this field, including civil, sanitary, and transportation engineering, are the foundation of any city's well-being and livability.

1830 plan for the Pine Street Sewer

Plan of Pine Street Sewer, 1830

Mill Creek Sewer under construction. Several men standing beside a giant partially constructed sewer pipe.

Mill Creek Sewer under construction, 1883

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

Color Diagram of Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia

30th Street Sewer

30th Street Sewer

Rudolph Hering

Rudolph Hering

Sewage collection and disposal plan

Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia, 1912

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

Outside Sprinkling Filters, Spring Garden Sewage Experiment Station, 1911