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[!] Over the next year, the USGS Pennsylvania Water Science Center will be updating the geodetic vertical elevation (gage datum) for many locations. Click HERE for additional information including a current list of streamgages with upcoming datum changes. This update in gage datum does not affect the location of the streamgage, nor the observed local gage height or discharge recorded at the streamgage.




USGS 03012520 Allegheny Reservoir near Warren, PA

  Lake Site

DESCRIPTION:
Latitude 41°50'17",   Longitude 79°00'10"   NAD27
Warren County, Pennsylvania, Hydrologic Unit 05010001
Drainage area: 2,180 square miles
Datum of gage: 0.00 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2007-10-01  2025-10-13  
 Daily Data
    Lake or reservoir water surface elevation above NAVD 1988, feet  2015-10-01  2025-10-12  3637 
 Daily Statistics 
    Lake or reservoir water surface elevation above NAVD 1988, feet  2015-10-01  2025-08-13 3577 
 Monthly Statistics 
    Lake or reservoir water surface elevation above NAVD 1988, feet  2015-10  2025-08  
 Annual Statistics 
    Lake or reservoir water surface elevation above NAVD 1988, feet  2016  2025  
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 1968-10-04  1968-10-04  1 
 Water-Year Summary 2006  2024  17 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Pennsylvania Water Science Center
Email questions about this site to Pennsylvania Water Science Center Water-Data Inquiries