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Potomac River at Harpers Ferry, WV Water Level Today

Maryland · USGS gauge 01620000 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 01620000 sits on the Potomac River and reads everything draining 6,290 square miles of the Conococheague-Opequon basin. Its datum sits 245 feet above sea level NAVD88.

Where this gauge sits in the drainage

No gauged site sits above this one on the mainstem, so this is the first published reading on the river. Downstream the next reading comes from Potomac River at Burkittsville Rd at Brunswick, MD at 9,453 square miles, so what passes this gauge is about 67% of the water measured there. Water passing here goes on to Potomac River at Point of Rocks, MD and Potomac River at Edwards Ferry near Poolesville,md.

Nearby river gauges

Live streamflow and gage height: USGS gauge 01620000. Percentile context computed against the gauge's period of record. Not for navigation.

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