Allegheny County Watershed Boundaries

This dataset demarcates the 52 isolated sub-Watersheds of Allegheny County that drain to single point on the main stem rivers. Created by 3 Rivers 2nd Nature based upon Allegheny County watershed file showing all tributaries of all streams. All tributaries draining to a single point on the river were joined as a single major stream system watershed for field measurement and analysis purposes.

Data and Resources

Additional Info

Field Value
Public Access Level Comment
Temporal Coverage 2000
Geographic Unit
Data Notes

Coordinate System: Pennsylvania State Plane South Zone 3702; U.S. Survey Foot

Data Dictionary :

This dataset is harvested on a weekly basis from Allegheny County’s GIS data portal ( The full metadata record for this dataset can also be found on Allegheny County’s GIS portal.

Related Document(s)
Frequency - Data Change As Needed
Frequency - Publishing As Needed
Data Steward Eli Thomas
Data Steward Email Eli Thomas