NORTHWEST BRANCH ANACOSTIA RIVER NR COLESVILLE, MD

MARYLAND39.0655°N, -77.0294°W Updated 1 hr ago

FLOW RATE

4cfs

GAUGE HT

1.47ft

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

4cfs 46.2% vs avg

Optimal band: 4–6 cfs

PERIOD HIGH

282cfs

PERIOD LOW

1cfs

RUNNABLE

36%

last 1 year in band

Gauge Height

1.47ft

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39.0655, -77.0294

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DATA · USGS · NOAA · NWSUPDATED 2026-10-17 00:00 UTC

Site #01650500·USGS

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