River gauges›Maryland
RIVER GAUGE · MONOCACY RIVER

Monocacy River at Monocacy Blvd. in Frederick

Frederick County, Maryland

Water level1.45 ft
Flow49 cfs
Last readingSep 16, 2026, 4:15 PM UTC (last recorded)
Action15.5 ft
Minor flood17.8 ft
Moderate flood20.2 ft
Major flood23.5 ft

The past week

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Highest crests on record

DateLevelFlow
Sep 2, 202125.86 ft29,239 cfs
Oct 30, 201225.56 ft27,819 cfs
Dec 11, 200324.68 ft26,500 cfs

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