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Streamflow Measurements for Pennsylvania

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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.


! Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

USGS 03073751 Monongahela R @ Maxwell L&D (lower pool) @ Maxwell

Fayette County, Pennsylvania
Hydrologic Unit Code 05020005
Latitude  39°59'50.68", Longitude  79°57'32.19" NAD83
Drainage area 4,440  square miles
Gage datum 734.08 feet above NAVD88

Period of record
Begin Date End Date Count
2011-03-01 2012-09-13 7

 
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