Rivers in Virginia
Difficult Run at Browns Mill Road / Wolf Trap
Below flood stage
193.75ftStage
Observed Mon, Sep 21, 2:05 PM EDT
- Flood stage
- 195.00 ft
- Record crest
- 196.37 ft2025
Flood stages and impacts
| Category | Stage |
|---|---|
| Minor flood | 195.00 ft |
| Action | 194.30 ft |
- 195.00 ftSix inches of water covers the road at its lowest point.
Crest history
11 crests on NOAA’s list since 2019.
| # | Date | Stage |
|---|---|---|
| 1 | July 13, 2025 | 196.37 ft |
| 2 | August 11, 2022 | 196.24 ft |
| 3 | May 7, 2022 | 196.09 ft |
| 4 | July 9, 2022 | 196.03 ft |
| 5 | October 26, 2021 | 195.89 ft |
| 6 | April 13, 2020 | 195.85 ft |
| 7 | January 25, 2020 | 195.60 ft |
| 8 | October 29, 2021 | 195.51 ft |
| 9 | November 1, 2019 | 195.45 ft |
| 10 | May 23, 2022 | 195.05 ft |
| 11 | May 14, 2025 | 195.01 ft |
Most recent crests
- July 13, 2025: 196.37 ft
- May 14, 2025: 195.01 ft
- August 11, 2022: 196.24 ft
- July 9, 2022: 196.03 ft
- May 23, 2022: 195.05 ft
- May 7, 2022: 196.09 ft
- October 29, 2021: 195.51 ft
- October 26, 2021: 195.89 ft
- April 13, 2020: 195.85 ft
- January 25, 2020: 195.60 ft
Nearby
Upstream, downstream and the gauges around this one.
- Colvin Run at Lake Fairfax near Reston
- Old Courthouse Spring Branch at Carrington Regional Park
- Rocky Run at Tysons Corner (Pulte/McLean Regional Pond)
- Difficult Run at Great Falls
- Piney Run at Reston (Northern Sector Pond 1)
- Horsepen Run at Oak Hill (West Ox Road Regional Pond)
- Dead Run at McLean
- Unnamed Tributary at Dulles Station near Herndon
What this means
Forecasts by the Middle Atlantic River Forecast Center. Forecasts are not available. Only observed stages are available for this point.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service.