Action Stage
5.5 ft
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: FMHV2). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
6.5 ft
Water from Four Mile Run starts to impact parts of Benjamin Banneker Park.
5.5 ft
Water from Four Mile Run starts to impact parts of Issac Crossman Park.
Impact statements from the National Weather Service, describing what typically happens at each water level.
Low-Water Impacts
5 ft
Stage needed to inundate designated Gulf Sturgeon critical habitat below Jim Woodruff Lock and Dam.
3 ft
Temporary (not sustainable) operating level for of Scholz Power Plant
What happens as water levels drop, per the National Weather Service.
7-Day Water Level Chart
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About This Gauge
NWS LID
FMHV2
River
Four Mile Run
County
City of Falls Church, VA
Coordinates
38.8863°N, 77.1635°W
Get Flood Alerts for Four Mile Run
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 Four Mile Run at HWY 29?
The Four Mile Run at HWY 29 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 Four Mile Run at HWY 29?
This gauge has NWS-defined flood categories. Check the flood stages section above for current thresholds.
How do I get alerts when Four Mile Run rises?
Download StormCast free on Google Play, go to River Gauges, and add Four Mile Run at HWY 29 to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Four Mile Run at HWY 29 gauge located?
The gauge is located in City of Falls Church County, Virginia at coordinates 38.8863°N, 77.1635°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Four Mile Run
More Resources
Source & Notes
Data provided by: United States Geological Survey