Major Flood
12 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
10 ft
Minor Flood
7 ft
Action Stage
4 ft
What Floods at Each Level
21.5 ft
Water covers the Route 1 bridge over Four Mile Run.
13 ft
Significant flooding begins on both sides of the stream, with major flooding of homes and businesses.
9 ft
Flooding begins on both sides of the stream, with homes and businesses likely to be affected.
5 ft
Water reaches the Four Mile Run Park Trail on the Alexandria side of the stream.
4 ft
Portions of the Four Mile Run Trail are flooded.
3.8 ft
Water begins to cover the lowest spots of the Four Mile Run Trail near Route 1.
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 |
|---|---|---|
| Sep 2, 2006 | 4.99 ft | — |
| Sep 10, 2018 | 4.66 ft | — |
| Sep 8, 2011 | 3.8 ft | — |
About This Gauge
USGS Site
NWS LID
ALEV2
River
Four Mile Run
County
City of Alexandria, VA
Coordinates
38.8403°N, 77.0533°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 above Highway 1 at Alexandria?
The Four Mile Run above Highway 1 at Alexandria gauge is maintained by USGS (site 01652545) 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 above Highway 1 at Alexandria?
The NWS-defined flood stage for Four Mile Run above Highway 1 at Alexandria is 7 feet. Action stage begins at 4 feet. Moderate flooding starts at 10 feet, and major flooding at 12 feet.
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 above Highway 1 at Alexandria 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 above Highway 1 at Alexandria gauge located?
The gauge is located in City of Alexandria County, Virginia at coordinates 38.8403°N, 77.0533°W. USGS site number: 01652545. 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: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Gauge reading affected by tides.
- Stage may be affected by ice.