Stale — older than 1 week No flood stage data USGS

Merrimack River Near Tyngsborough Bridge Tyngsborough Ma

Updated August 31, 2020 at 10:15:00 AM EDT · Approved · Site 010965305

Current conditions

Historical trends

Full-year history is still loading for this station. Shorter ranges are available now; the 1 Year chart will fill in as we finish backfilling from USGS.

Hourly measurements

Detailed readings by hour, organized by day

Nearby stations

Other monitoring locations nearby

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Data courtesy of the U.S. Geological Survey.