Potomac River Guide Home

Interactive Maps

The Lower Potomac

The Potomac Estuary

Mount Vernon to Anacostia River

Mall Area

Georgetown to Great Falls

Potomac Piedmont

Upper Potomac

The North Branch

Boat Ramps

Monitoring Sites

Bridges and Ferries

Cruises and Charters

Search Potomac Sites

Piscataway Creek at Piscataway

River Monitoring Site

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Federal and state agencies maintain river level monitors throughout the Potomac River Basin. The U.S.Geological Survey compiles real-time information from river monitors, in cooperation with the U.S. Army Corps of Engineers and the National Oceanic and Atmospheric Administration (NOAA).

Current stream conditions are shown in the graph below:

Graph of USGS water data

For real-time data on this site, select this link.

Nearby Potomac River Stream Monitors
Upstream
Downstream
To view a map of Potomac River Monitors, select this link.

Suggested Links

Click here for larger map and nearby sites.

Contact Information
U.S. Geological Survey
5522 Research Park Drive
Baltimore MD 21228
443-498-5500
Website