Monocacy River at Monocacy Blvd. in Frederick
Maryland — Water Level & Flood Stage
Located in Frederick County, Maryland on the Monocacy River. Live water level data from USGS gauge 01642190, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Major Flood
23.5 ft
Moderate Flood
20.2 ft
Minor Flood
17.8 ft
Action Stage
15.5 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Sep 2, 2021 | 25.86 ft | 29,239 cfs |
| Sep 2, 2021 | 25.86 ft | 29,239 cfs |
| Oct 30, 2012 | 25.56 ft | 27,819 cfs |
| Oct 30, 2012 | 25.56 ft | 27,819 cfs |
| Dec 11, 2003 | 24.68 ft | 26,500 cfs |
About This Gauge
USGS Site
NWS LID
FRMM2
River
Monocacy River
County
Frederick, MD
Coordinates
39.4433°N, 77.3828°W
Get Flood Alerts for Monocacy River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Monocacy River at Monocacy Blvd. in Frederick?
The Monocacy River at Monocacy Blvd. in Frederick gauge is maintained by USGS (site 01642190) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Monocacy River at Monocacy Blvd. in Frederick?
The NWS-defined flood stage for Monocacy River at Monocacy Blvd. in Frederick is 17.8 feet. Action stage begins at 15.5 feet. Moderate flooding starts at 20.2 feet, and major flooding at 23.5 feet.
How do I get alerts when Monocacy River rises?
Download StormCast free on Google Play, go to River Gauges, and add Monocacy River at Monocacy Blvd. in Frederick to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Monocacy River at Monocacy Blvd. in Frederick gauge located?
The gauge is located in Frederick County, Maryland at coordinates 39.4433°N, 77.3828°W. USGS site number: 01642190. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Stage may be affected by ice.