Annual reports and other documents relating to Philadelphia’s water supply system, 1796-1992
Plan of Philadelphia, John Hills, 1796
Frankford Creek Watershed: A historical overview of the Philadelphia section
Frankford Creek Watershed Historical Timeline
Drawing Dock Creek
Overbrook, as it was. A brief history of the Overbrook neighborhood of Philadelphia, focusing on changes in the natural landscape.
A Tour of Philadelphia’s Delaware River Waterfront in 1876
Cobbs Creek: A Brief Historical Overview by Adam Levine
Glossary of Drainage Terms by C. Drew Brown
Centre Square Water Works, Drawings of Intake Basin
