Marsh Run at Grimes, MD
River level and flood forecast · Washington County
The river is 4.8 ft below flood stage (6 ft).
Flow: 12 cubic feet per second (USGS).
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 Marsh Run at Grimes to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 10 ft |
| Moderate flood stage | 7 ft |
| Flood stage | 6 ft |
| Action stage | 4 ft |
| Record crest (February 12, 1985) | 4.45 ft |
What floods at each level
From the National Weather Service, highest first.
- 10 ftSignificant flooding is occurring, with homes, buildings, and roads flooded.
- 7 ftWater covers the bridge on Sprecher Road near the camp entrance, and also covers the bridges upstream on Sprecher Road and Bakersville Road.
- 6 ftLowlands and fields on both sides of the river flood.
- 4 ftWater begins to overflow the banks downstream of the gage, but there is no impact.
Highest crests on record
- 4.45 ft — February 12, 1985
- 4.41 ft — February 26, 1979
- 4.1 ft — September 4, 2003
Recent crests: 4.1 ft (September 4, 2003) · 4.45 ft (February 12, 1985) · 4.41 ft (February 26, 1979)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (GRMM2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.