Patapsco River near Elkridge below Patapsco Valley State Park
Maryland — Water Level & Flood Stage
Located in Howard County, Maryland on the Patapsco River. Live water level data from USGS, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: ELKM2). Live data may be limited. View on NWS AHPS →
Flood Stages
Minor Flood
16 ft
Action Stage
15 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
16 ft
Hammonds Ferry Road floods and is closed at the Patapsco River. Backwater flooding likely also leads to the closure of Furnace Avenue in Elkridge.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Aug 4, 2018 | 21.38 ft | — |
| Aug 4, 2018 | 21.38 ft | — |
| Sep 28, 2018 | 20.29 ft | — |
| Sep 28, 2018 | 20.29 ft | — |
| Jul 26, 2018 | 19.69 ft | — |
About This Gauge
NWS LID
ELKM2
River
Patapsco River
County
Howard, MD
Coordinates
39.2147°N, 76.7044°W
Get Flood Alerts for Patapsco 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 Patapsco River near Elkridge below Patapsco Valley State Park?
The Patapsco River near Elkridge below Patapsco Valley State Park gauge is maintained by USGS 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 Patapsco River near Elkridge below Patapsco Valley State Park?
The NWS-defined flood stage for Patapsco River near Elkridge below Patapsco Valley State Park is 16 feet. Action stage begins at 15 feet. Moderate flooding starts at N/A feet, and major flooding at N/A feet.
How do I get alerts when Patapsco River rises?
Download StormCast free on Google Play, go to River Gauges, and add Patapsco River near Elkridge below Patapsco Valley State Park 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 Patapsco River near Elkridge below Patapsco Valley State Park gauge located?
The gauge is located in Howard County, Maryland at coordinates 39.2147°N, 76.7044°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
- Stage may be affected by ice.
- Gauge readings inaccurate - awaiting repair.