![Philadelphia harbor and rivers chart with points of interest](https://waterhistoryphl.org/wp-content/uploads/1912_Delaware_Schuylkill_Port_AEL-scaled.jpg?w=300)
![Philadelphia harbor and rivers chart with points of interest](https://waterhistoryphl.org/wp-content/uploads/1912_Delaware_Schuylkill_Port_AEL-scaled.jpg?w=300)
![](https://waterhistoryphl.org/wp-content/uploads/Birch_24.jpg?w=300)
Birch’s Views of Philadelphia, 1800
![Colored ink drawing showing drainage areas and sewer inlets in Philaelphia in the early 19th century](https://waterhistoryphl.org/wp-content/uploads/DrainageAreas_20050020521.jpg?w=300)
Drainage area plan, early 19th century
![Pen-and-ink drawing depicting the plan for stormwater regulation of Sassafras (Race) Street in Philadelphia in 1819](https://waterhistoryphl.org/wp-content/uploads/DR_1819Divide.jpg?w=300)
Sassafras (Race) Street Survey, 1819
![1848 Pine Street sewer plan showing an outlet into the Delaware River](https://waterhistoryphl.org/wp-content/uploads/DR_20050020519.jpg?w=300)
Pine Street sewer plan, 1848
![](https://waterhistoryphl.org/wp-content/uploads/Schuylkill_frombelowSouthStBr_color_PictAm_AEL-scaled.jpg?w=300)
Schuylkill River from below the South Street Bridge, 1873
![](https://waterhistoryphl.org/wp-content/uploads/ChestnutStBr_Schuylkill_PictAm_AEL-scaled.jpg?w=300)
Chestnut Street Bridge, on the Schuylkill River (Picturesque America)
![](https://waterhistoryphl.org/wp-content/uploads/Schuylkill_frombelowSouthStBr_PictAm_AEL-scaled.jpg?w=300)
Schuylkill River from below the South Street Bridge, 1873
![Plan of Philadelphia, John Hills, May 30, 1796](https://waterhistoryphl.org/wp-content/uploads/graff02.04_Hills-map-1794.jpg?w=300)
Plan of Philadelphia, John Hills, 1796
![](https://waterhistoryphl.org/wp-content/uploads/centre-square-basin-2018.002.0044-crop.jpg?w=300)
Centre Square Water System, Drawings of Intake Basin
![Benjamin Henry Latrobe, portrait by Filippo Costaggini, 1880](https://waterhistoryphl.org/wp-content/uploads/Benjamin_Henry_Latrobe_by_Filippo_Costaggini.jpg?w=300)
Centre Square Water Works, Latrobe Plans, 1799
![Pen and ink drawing of the proposed Delaware Seventh Street Sewer](https://waterhistoryphl.org/wp-content/uploads/Sewer-Connection-1850-20050020525-200dpi.jpg?w=300)