TidalMapBeaverdam Run at Cockeysville, MD Water Level Today
NWS river forecast
| When | Stage | Flow |
|---|
Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.
Last 30 days
About this gauge
USGS gauge 01583600 sits on Beaverdam Run and reads everything draining 21 square miles of the Gunpowder-Patapsco basin. Its datum sits 240 feet above sea level NAVD88. Daily flow has been on record here since 1983, 43 years of it.
Normal flows here
Beaverdam Run runs a median of 20 cfs at this gauge across 43 years of record. March is the fullest month at a median 28 cfs, and August the leanest at 14 cfs. The highest daily mean on record is 1,080 cfs in 2014, and the lowest is 3.0 cfs in 2002.
| Month | Median flow | Share of annual median |
|---|---|---|
| Jan | 22 cfs | 110% |
| Feb | 25 cfs | 125% |
| Mar | 28 cfs | 140% |
| Apr | 28 cfs | 140% |
| May | 24 cfs | 120% |
| Jun | 19 cfs | 95% |
| Jul | 17 cfs | 85% |
| Aug | 14 cfs | 70% |
| Sep | 14 cfs | 70% |
| Oct | 15 cfs | 75% |
| Nov | 18 cfs | 90% |
| Dec | 21 cfs | 105% |
Medians from the USGS daily-statistics record, 1983 to 2026. A month at 100% is running at its own long-term median.
Flood stages and record crests
Beaverdam Run reaches flood stage at this gauge at 9 feet. NWS starts watching it at 7 feet. The highest crest on record is 12.1 feet, in July 1984.
| Category | Gage height |
|---|---|
| Action | 7 ft |
| Minor flooding | 9 ft |
| Moderate flooding | 10 ft |
| Major flooding | 11 ft |
| When | Crest |
|---|---|
| July 1984 | 12.1 ft |
| September 2011 | 11.6 ft |
| May 1989 | 11.2 ft |
| July 2018 | 11.2 ft |
| April 2014 | 11.2 ft |
Flood categories and crest history from the NOAA National Water Prediction Service, gauge CKYM2. Stages are gage height, not depth. Not for navigation.
Nearby river gauges
- Baisman Run at Broadmoor, MD
- Western Run at Western Run, MD
- Pond Branch at Oregon Ridge, MD
- Long Quarter Branch at Lutherville, MD
- Minebank Run near Glen Arm, MD
- Piney Run at Dover, MD
- West Branch Herring Run at Idlewylde, MD
- Red Run near Owings Mills, MD
- Long Green Creek at Glen Arm, MD
- Scotts Level Branch at Rockdale, MD
- Whitemarsh Run near Fullerton, MD
- Tributary to Dead Run Tributary at Woodlawn, MD
Live streamflow and gage height: USGS gauge 01583600. Percentile context computed against the gauge's period of record. Not for navigation.
Open Beaverdam Run at Cockeysville, MD on the live chart →
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