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Bennett Creek at Park Mills, MD Water Level Today

Maryland · USGS gauge 01643500 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 01643500 sits on Bennett Creek and reads everything draining 63 square miles of the Monocacy basin. Its datum sits 233 feet above sea level NAVD88. Daily flow has been on record here since 1948, 70 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 Monocacy River near Dickerson, MD at 961 square miles, so what passes this gauge is about 7% of the water measured there. Water passing here goes on to Potomac River at Edwards Ferry near Poolesville,md and Potomac River near Wash, Dc Little Falls Pump Sta.

Normal flows here

Bennett Creek runs a median of 44 cfs at this gauge across 70 years of record. March is the fullest month at a median 80 cfs, and September the leanest at 17 cfs. The highest daily mean on record is 5,500 cfs in 1972, and the lowest is 0.4 cfs in 1966.

Median flow by month
MonthMedian flowShare of annual median
Jan58 cfs133%
Feb69 cfs159%
Mar80 cfs184%
Apr74 cfs170%
May57 cfs131%
Jun40 cfs93%
Jul26 cfs60%
Aug21 cfs48%
Sep17 cfs39%
Oct19 cfs44%
Nov28 cfs64%
Dec47 cfs108%

Medians from the USGS daily-statistics record, 1948 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

Bennett Creek reaches flood stage at this gauge at 11 feet. NWS starts watching it at 6 feet. The highest crest on record is 22.1 feet, in June 1972.

NWS flood categories
CategoryGage height
Action6 ft
Minor flooding11 ft
Moderate flooding17 ft
Major flooding20 ft
Highest crests on record
WhenCrest
June 197222.1 ft
September 200314.6 ft
September 197114.3 ft
May 198812.7 ft
September 201112.1 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge PMBM2. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 01643500. Percentile context computed against the gauge's period of record. Not for navigation.

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