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Big Pipe Creek at Bruceville, MD Water Level Today

Maryland · USGS gauge 01639500 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 01639500 sits on Big Pipe Creek and reads everything draining 102 square miles of the Monocacy basin. Its datum sits 336 feet above sea level NAVD88. Daily flow has been on record here since 1948, 79 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 at Monocacy Blvd at Frederick, MD at 703 square miles, so what passes this gauge is about 15% of the water measured there. Water passing here goes on to Monocacy River at Jug Bridge near Frederick, MD and Monocacy River near Dickerson, MD.

Normal flows here

Big Pipe Creek runs a median of 68 cfs at this gauge across 79 years of record. March is the fullest month at a median 131 cfs, and September the leanest at 30 cfs. The highest daily mean on record is 14,400 cfs in 1972, and the lowest is 0.1 cfs in 2002.

Median flow by month
MonthMedian flowShare of annual median
Jan90 cfs133%
Feb112 cfs166%
Mar131 cfs194%
Apr116 cfs171%
May88 cfs130%
Jun60 cfs88%
Jul42 cfs62%
Aug34 cfs50%
Sep30 cfs44%
Oct34 cfs50%
Nov49 cfs73%
Dec78 cfs116%

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

Big Pipe Creek reaches flood stage at this gauge at 8 feet. NWS starts watching it at 6 feet. The highest crest on record is 19 feet, in September 1975.

NWS flood categories
CategoryGage height
Action6 ft
Minor flooding8 ft
Moderate flooding16 ft
Major flooding19 ft
Highest crests on record
WhenCrest
September 197519 ft
June 197217.9 ft
January 199613.7 ft
September 202113.6 ft
September 201112.1 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge BRUM2. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 01639500. Percentile context computed against the gauge's period of record. Not for navigation.

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