MERRIMACK RIVER BL CONCORD RIVER AT LOWELL, MA

LOWELL, MA42.6459°N, -71.2984°W Updated 49 min ago

FLOW RATE

2,710cfs

GAUGE HT

42.36ft

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

2,710cfs 51.4% vs avg

Optimal band: 2,440–3,300 cfs

PERIOD HIGH

3,080cfs

PERIOD LOW

2,380cfs

RUNNABLE

86%

last 1 day in band

Gauge Height

42.36ft

Precipitation History

Your History · MERRIMACK RIVER BL CONCORD RIVER AT LOWELL, MA

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42.6459, -71.2984

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DATA · USGS · NOAA · NWSUPDATED 2026-07-12 11:30 UTC

Site #01100000·USGS

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