River gauges›Maryland
RIVER GAUGE · POTOMAC RIVER

Potomac River at Edwards Ferry

Montgomery County, Maryland

Water level3.77 ft
Flow—
Last readingSep 16, 2026, 4:45 PM UTC (last recorded)
Action12.25 ft
Minor flood15 ft
Moderate flood17 ft
Major flood24 ft

The past week

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What floods at each level

Highest crests on record

DateLevelFlow
Jun 4, 201822.45 ft—
Sep 29, 201821.8 ft—
Sep 29, 201821.57 ft—

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