Northeast Branch Anacostia River at Riverdale, MD
River level and flood forecast · Prince Georges County
The river is 6.9 ft below flood stage (8 ft).
Flow: 69 cubic feet per second (USGS).
River camera
Watch the time-lapse
Camera by the U.S. Geological Survey. Most take a picture every hour, some every few minutes; many stop at night.
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Northeast Branch Anacostia River at Riverdale to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 16 ft |
| Moderate flood stage | 13 ft |
| Flood stage | 8 ft |
| Action stage | 7 ft |
| Record crest (July 3, 2022) | 13.37 ft |
What floods at each level
From the National Weather Service, highest first.
- 16 ftNumerous roads and structures are flooded.
- 14 ftMuch of Tanglewood Drive is flooded, along with some structures.
- 13 ftWater approaches homes and businesses.
- 12 ftWater reaches Tanglewood Drive in spots, as well as a parking lot near Riverdale.
- 11 ftAthletic fields off Tanglewood Drive are fully flooded.
- 8 ftThe Northeast Branch Trail begins to flood in spots.
- 7 ftWater leaves the banks and begins to cover an athletic field off Tanglewood Drive. No other impacts are noted.
Highest crests on record
- 13.37 ft — July 3, 2022
- 11.19 ft — July 4, 2004
- 10.85 ft — October 16, 1942
- 10.83 ft — June 26, 2006
- 10.64 ft — July 18, 1945
Recent crests: 8.93 ft (July 19, 2025) · 8.86 ft (January 10, 2024) · 9.97 ft (August 10, 2022) · 13.37 ft (July 3, 2022) · 8.04 ft (August 9, 2021)
Up and down the river, and nearby
- Hickey Run at National Arboretum, DC
- Watts Branch at Washington, DC
- Sligo Creek near Takoma Park, MD
- Paint Branch near White Oak, MD
- Rock Creek at Joyce Road in Washington, DC
- Anacostia River at Buzzard Point in Washington DC, DC
- Potomac River at Georgetown / Wisconsin Ave, DC
- Northwest Branch at Kemp Mill, MD
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (RVDM2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.