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City
FEMA Flood Plain
City of Philadelphia —
Federal Emergency Management Administration (FEMA) data clipped to Philadelphia. Please note, FEMA is moving away from solely using '100-year' and '500-year' flood... -
City
Major Watersheds - Regional
City of Philadelphia —
Polygon feature class representing major watersheds in Philadelphia. Data was developed originally from either USGS and the 2004 Sanborn DEM (digital elevation model)...