River gauges›Maryland
RIVER GAUGE · POTOMAC RIVER

Potomac River at Hancock

Washington County, Maryland

Water level3.06 ft
Flow785 cfs
Last readingSep 16, 2026, 4:15 PM UTC (last recorded)
Action21 ft
Minor flood25 ft
Moderate flood33 ft
Major flood35 ft

The past week

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What floods at each level

Highest crests on record

DateLevelFlow
Mar 18, 193647.6 ft340,000 cfs
Nov 6, 198541.2 ft207,000 cfs
May 31, 188940 ft220,000 cfs

More on Potomac River

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