


The Schuylkill Navigation: A Journey on the Historic Nineteenth Century Waterway

Map Lovers’ Monday: Philadelphia Topography

Annual reports and other documents relating to Philadelphia’s water supply system, 1796-1992

PWD Celebrates Black History Month

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

Newspaper Clipping Scrapbooks of Frederic Graff Jr.,Chief Engineer of the Philadelphia Water Department: Part 1, 1854-1857

Newspaper Clipping Scrapbooks of Frederick Graff Jr., Chief Engineer of the Philadelphia Water Department. Part 2: 1858-1871
