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Beetree Run at Bentley Springs, MD Water Level Today

Maryland · USGS gauge 01581960 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 01581960 sits on Beetree Run and reads everything draining 9.7 square miles of the Gunpowder-Patapsco basin. Its datum sits 486 feet above sea level NAVD88. Daily flow is on record here from 2000 to 2024, 25 years in all.

Normal flows here

Beetree Run runs a median of 9.7 cfs at this gauge across 25 years of record. March is the fullest month at a median 14 cfs, and September the leanest at 6.6 cfs. The highest daily mean on record is 389 cfs in 2018, and the lowest is 1.1 cfs in 2002.

Median flow by month
MonthMedian flowShare of annual median
Jan10 cfs103%
Feb12 cfs124%
Mar14 cfs144%
Apr14 cfs144%
May14 cfs144%
Jun10 cfs103%
Jul8.0 cfs82%
Aug7.0 cfs72%
Sep6.6 cfs68%
Oct7.3 cfs75%
Nov8.0 cfs82%
Dec10 cfs103%

Medians from the USGS daily-statistics record, 2000 to 2024. A month at 100% is running at its own long-term median. USGS stopped publishing a daily flow record at this gauge, so these are historical norms, not a baseline for current readings.

Flood stages and record crests

Beetree Run reaches flood stage at this gauge at 5.5 feet. NWS starts watching it at 4.5 feet. The highest crest on record is 7.3 feet, in July 2018.

NWS flood categories
CategoryGage height
Action4.5 ft
Minor flooding5.5 ft
Moderate flooding7 ft
Highest crests on record
WhenCrest
July 20187.3 ft
September 20116.6 ft
July 20185.8 ft
August 20044.9 ft
August 20094.8 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge BSBM2. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 01581960. Percentile context computed against the gauge's period of record. Not for navigation.

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