Stale — older than 1 week No flood stage data USGS

Merrimack River Near Power Lines, Merrimac, MA

Updated September 2, 2020 at 04:28:00 PM EDT · Approved · Site 01100806

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

View all on map

Data courtesy of the U.S. Geological Survey.