Minor Flood
195 ft
Current Water Level
Gage Height
Loading...
Streamflow
Loading...
Last Reading
Loading...
This is an NWS forecast point (LID: DRBV2). 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.
Action Stage
194.3 ft
What Floods at Each Level
195 ft
Six inches of water covers the road at its lowest point.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
Loading chart data...
Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jul 12, 2025 | 196.37 ft | — |
| Aug 10, 2022 | 196.24 ft | — |
| May 7, 2022 | 196.09 ft | — |
About This Gauge
NWS LID
DRBV2
River
Difficult Run
County
Fairfax, VA
Coordinates
38.9528°N, 77.2911°W
Get Flood Alerts for Difficult 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 Difficult Run at Browns Mill Road / Wolf Trap?
The Difficult Run at Browns Mill Road / Wolf Trap 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 Difficult Run at Browns Mill Road / Wolf Trap?
The NWS-defined flood stage for Difficult Run at Browns Mill Road / Wolf Trap is 195 feet. Action stage begins at 194.3 feet. Moderate flooding starts at N/A feet, and major flooding at N/A feet.
How do I get alerts when Difficult Run rises?
Download StormCast free on Google Play, go to River Gauges, and add Difficult Run at Browns Mill Road / Wolf Trap 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 Difficult Run at Browns Mill Road / Wolf Trap gauge located?
The gauge is located in Fairfax County, Virginia at coordinates 38.9528°N, 77.2911°W. Data is provided by the U.S. Geological Survey and the National Weather Service.