Dead Run near McLean
Virginia — Water Level & Flood Stage
Located in Fairfax County, Virginia on the Dead Run. Live water level data from USGS gauge 01646305, 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
11 ft
Moderate Flood
10 ft
Minor Flood
9 ft
Action Stage
8 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
11 ft
Significant flooding is occurring, with numerous roads flooded.
10 ft
Numerous side streets and footbridges are flooded near Dead Run. Water approaches Georgetown Pike.
9 ft
Water approaches yards near the stream.
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 |
|---|---|---|
| Dec 25, 2022 | 10.54 ft | 3,775 cfs |
| Dec 25, 2022 | 10.54 ft | 3,775 cfs |
| Jul 7, 2019 | 8.18 ft | 4,410 cfs |
| Jul 7, 2019 | 8.18 ft | 4,410 cfs |
| Aug 17, 2010 | 7.42 ft | 1,630 cfs |
About This Gauge
Get Flood Alerts for Dead 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 Dead Run near McLean?
The Dead Run near McLean gauge is maintained by USGS (site 01646305) 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 Dead Run near McLean?
The NWS-defined flood stage for Dead Run near McLean is 9 feet. Action stage begins at 8 feet. Moderate flooding starts at 10 feet, and major flooding at 11 feet.
How do I get alerts when Dead Run rises?
Download StormCast free on Google Play, go to River Gauges, and add Dead Run near McLean 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 Dead Run near McLean gauge located?
The gauge is located in Fairfax County, Virginia at coordinates 38.9597°N, 77.1761°W. USGS site number: 01646305. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Stage may be affected by ice.