Beaverdam Run at Cockeysville, MD
River level and flood forecast · Baltimore County
The river is 5.8 ft below flood stage (9 ft).
Flow: 53 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 Beaverdam Run at Cockeysville to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 11 ft |
| Moderate flood stage | 10 ft |
| Flood stage | 9 ft |
| Action stage | 7 ft |
| Record crest (July 1, 1984) | 12.1 ft |
What floods at each level
From the National Weather Service, highest first.
- 12 ftWidespread flooding is occurring near the stream with several feet of water in buildings in part of Cockeysville.
- 11 ftFlooding becomes widespread near the intersection of York Road and Beaver Run Road with numerous buildings flooded and water flowing across York Road.
- 10 ftFloodwaters begin to cover York Road. Businesses north of Beaver Run Road and east of York Road are flooded.
- 9 ftBeaver Run Lane begins to flood. Water begins to surround nearby buildings.
Highest crests on record
- 12.1 ft — July 1, 1984
- 11.58 ft — September 7, 2011
- 11.2 ft — May 6, 1989
- 11.17 ft — July 25, 2018
- 11.15 ft — April 30, 2014
Recent crests: 10.27 ft (January 10, 2024) · 9.62 ft (December 18, 2023) · 9.04 ft (April 13, 2020) · 11.17 ft (July 25, 2018) · 9.28 ft (July 24, 2018)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (CKYM2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.