Topics Infrastructure

Map Lovers’ Monday: Philadelphia in 1957, according to the Pennsy

Philadelphia harbor and rivers chart with points of interest

Map of Philadelphia Harbor, Delaware and Schuylkill, 1912

Plan of Philadelphia, John Hills, May 30, 1796

Plan of Philadelphia, John Hills, 1796

The Manayunk Expressway

Centerfold of 1955 brochure depicting the Southeast Sewage Treatment Works

Southeast Sewage Treatment Works diagram, 1955