


Water Bureau Newspaper Scrapbook, 1942-1952

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

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

Centre Square Water System

Centre Square Water Works, Drawings of Intake Basin

Centre Square Water Works, Frederick Graff, Sr. Plans, 1799

Centre Square Water Works, Latrobe Plans, 1799
