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Major Watersheds - Regional
Polygon feature class representing major watersheds in Philadelphia. Data was developed originally from either USGS and the 2004 Sanborn DEM (digital elevation model) using... -
Major Watersheds - Philadelphia
Polygon feature class representing major watersheds in Philadelphia. Data was developed originally from either USGS and the 2004 Sanborn DEM (digital elevation model) using... -
Combined Sewer Service Area
This layer is dissolved and queried from PWD's internal sewer shed feature class named modelsheds. The polygons in this layer are catchments for sanitary, storm and/or combined... -
Hydrology
Locations of surface water features (rivers, creeks, ponds, reservoirs) and water beneath city bridges and adjacent to city borders. Separate files are available for each...
