TidalMapBeaver Run near Finksburg, 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 01586210 sits on Beaver Run and reads everything draining 14 square miles of the Gunpowder-Patapsco basin. Its datum sits 428 feet above sea level NAVD88. Daily flow has been on record here since 1983, 43 years of it.
Where this gauge sits in the drainage
No gauged site sits above this one on the mainstem, so this is the first published reading on the river. Downstream the next reading comes from Patapsco River at Hollofield, MD at 285 square miles, so what passes this gauge is about 5% of the water measured there. Water passing here goes on to Patapsco River near Catonsville, MD and Patapsco River near Elkridge, MD.
Normal flows here
Beaver Run runs a median of 12 cfs at this gauge across 43 years of record. March is the fullest month at a median 20 cfs, and September the leanest at 6.1 cfs. The highest daily mean on record is 528 cfs in 1996, and the lowest is 0.3 cfs in 2002.
| Month | Median flow | Share of annual median |
|---|---|---|
| Jan | 15 cfs | 125% |
| Feb | 18 cfs | 150% |
| Mar | 20 cfs | 167% |
| Apr | 19 cfs | 158% |
| May | 17 cfs | 142% |
| Jun | 11 cfs | 92% |
| Jul | 8.2 cfs | 68% |
| Aug | 6.9 cfs | 58% |
| Sep | 6.1 cfs | 51% |
| Oct | 7.5 cfs | 62% |
| Nov | 9.9 cfs | 83% |
| Dec | 13 cfs | 108% |
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
Beaver Run reaches flood stage at this gauge at 5 feet. NWS starts watching it at 4 feet. The highest crest on record is 6.1 feet, in July 2018.
| Category | Gage height |
|---|---|
| Action | 4 ft |
| Minor flooding | 5 ft |
| Moderate flooding | 8 ft |
| Major flooding | 13 ft |
| When | Crest |
|---|---|
| July 2018 | 6.1 ft |
| May 1989 | 5.7 ft |
| July 2006 | 5.5 ft |
| August 2004 | 5.5 ft |
| August 2018 | 5.5 ft |
Flood categories and crest history from the NOAA National Water Prediction Service, gauge FNKM2. Stages are gage height, not depth. Not for navigation.
Nearby river gauges
- North Branch Patapsco River at Cedarhurst, MD
- Morgan Run near Louisville, MD
- Cranberry Branch near Westminster, MD
- Piney Run at Dover, MD
- Red Run near Owings Mills, MD
- Georges Run near Beckleysville, MD
- Scotts Level Branch at Rockdale, MD
- Grave Run near Beckleysville, MD
- Patapsco River at Hollofield, MD
- Pond Branch at Oregon Ridge, MD
- Baisman Run at Broadmoor, MD
- Tributary to Dead Run Tributary at Woodlawn, MD
Live streamflow and gage height: USGS gauge 01586210. Percentile context computed against the gauge's period of record. Not for navigation.
Open Beaver Run near Finksburg, MD on the live chart →
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