Monocacy River at Monocacy Blvd at Frederick, MD

Frederick County, Maryland · USGS gauge 01642190 · NWS FRMM2 · Monocacy River flood status · Maryland river levels

Nearby: river levels near Frederick

Is Monocacy River at Monocacy Blvd at Frederick, MD flooding right now?

Monocacy River at Monocacy Blvd at Frederick, MD measured 1.54 ft on 2026-09-11 01:15:00 UTC. That observation was 16.3 ft below its 17.8 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
1.54 ft
as of 51 min ago
Streamflow
65 cfs
data refreshed 4 min ago

Minor flooding here begins at 17.8 ft, with major flooding at 23.5 ft. The highest crest on record was 25.86 ft on Thu, Sep 2, 2021.

Streamflow outlook

NOAA National Water Model forecast, issued 14 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

CategoryStageCurrent distance
Action15.5 ft14.0 ft below
Minor flood17.8 ft16.3 ft below
Moderate flood20.2 ft18.7 ft below
Major flood23.5 ft22.0 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
25.86 ft2021-09-02
25.56 ft2012-10-31
24.68 ft2003-12-12
24.57 ft2011-04-17
24.55 ft2018-09-10

Nearby gauges

GaugeDistanceCounty
Linganore Creek at Linganore Rd near Frederick, MD2.6 miFrederick County
Carroll Creek above Rock Creek at Frederick, MD2.9 miFrederick County
Monocacy River at Jug Bridge near Frederick, MD2.9 miFrederick County
Carroll Creek near Frederick, MD3.2 miFrederick County
Linganore Creek near Libertytown, MD6.0 miFrederick County
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast