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.

Birch’s Views of Philadelphia, 1800

Subjects Engineering

Birch’s Views of Philadelphia, 1800

Thomas Mill Covered Bridge over Wissahickon Creek (Picturesque America)

Down Under III: A walk in the Dobson’s Run Storm Relief Sewer, June 15, 2010

Requiem for a stream: A brief history of Dobson’s Run

From Creek To Sewer

Two reports on the state of the Schuylkill River, 1867

Frankford Creek: Sad History of an Urban Stream title page

Duplex Pumping Engine, Belmont Works