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Plumtree Run near Bel Air, MD Water Level Today

Maryland · USGS gauge 01581752 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 01581752 sits on Plumtree Run and reads everything draining 2.5 square miles of the Gunpowder-Patapsco basin. Its datum sits 182 feet above sea level NAVD88. Daily flow has been on record here since 2002, 24 years of it.

Normal flows here

Plumtree Run runs a median of 2.1 cfs at this gauge across 24 years of record. March is the fullest month at a median 3.0 cfs, and September the leanest at 1.1 cfs. The highest daily mean on record is 235 cfs in 2010, and the lowest is 0.1 cfs in 2002.

Median flow by month
MonthMedian flowShare of annual median
Jan2.4 cfs114%
Feb2.6 cfs124%
Mar3.0 cfs143%
Apr2.8 cfs133%
May2.4 cfs114%
Jun1.9 cfs88%
Jul1.7 cfs81%
Aug1.5 cfs71%
Sep1.1 cfs52%
Oct1.5 cfs71%
Nov1.6 cfs76%
Dec2.6 cfs124%

Medians from the USGS daily-statistics record, 2002 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

Plumtree Run reaches flood stage at this gauge at 6 feet. NWS starts watching it at 5 feet. The highest crest on record is 6.7 feet, in June 2021.

NWS flood categories
CategoryGage height
Action5 ft
Minor flooding6 ft
Moderate flooding7 ft
Major flooding10 ft
Highest crests on record
WhenCrest
June 20216.7 ft
August 20186.6 ft
June 20066.6 ft
August 20036.2 ft
August 20205.8 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge PTRM2. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 01581752. Percentile context computed against the gauge's period of record. Not for navigation.

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