Allegheny CountyThis dataset shows the point locations of dams in Allegheny County. If viewing this description on the Western Pennsylvania Regional Data Center's open data portal ( http://www.wprdc.org ), this dataset is harvested on a weekly basis from Allegheny County's GIS data portal ( http://openac.alcogis.opendata.arcgis.com/ ). The full metadata record for this dataset can also be found on Allegheny County's GIS portal. You can access the metadata record and other resources on the GIS portal by clicking on the "Explore" button (and choosing the "Go to resource" option) to the right of the "ArcGIS Open Dataset" text below. Category: Energy Organization: Allegheny County Department: Geographic Information Systems Group; Department of Administrative Services Temporal Coverage: 2003 Data Notes: Coordinate System: Pennsylvania State Plane South Zone 3702; U.S. Survey Foot Development Notes: none Other: none Related Document(s): Data Dictionary ( none ) Frequency - Data Change: As needed Frequency - Publishing: As needed Data Steward Name: Eli Thomas Data Steward Email: gishelp@alleghenycounty.usallegheny-county-dam-locations2engWestern Pennsylvania Regional Data Center Open DataPublicEnergyEnvironmentAllegheny County Dam LocationsDatasetsPennsylvania--Allegheny CountyPennsylvaniaLast Modified: 2026-02-21