Riverbot

MERRIMACK RIVER BL CONCORD RIVER AT LOWELL, MA

MERRIMACK RIVER MA USGS

MERRIMACK RIVER BL CONCORD RIVER AT LOWELL, MA (01100000) is a real-time streamflow monitoring station on the MERRIMACK RIVER in MA, operated by the U.S. Geological Survey. Riverbot tracks its streamflow and alerts anglers the moment flow and temperature hit their fishing window. 21 fish species are associated with this station in public fish records.

USGS site number
01100000
Agency
USGS
State
MA
Coordinates
42.6459, -71.2984

Live conditions & history

Create a free account to see live flow, temperature, and recent history for this station

Riverbot reads this gauge every 15 minutes and emails you when the river hits the flow and temperature you fish. Sign up free to unlock the live chart and set your window.

7-day weather

Create a free account to see the 7-day weather forecast for this station

Wind, rain, and sky conditions for the week ahead at this gauge's coordinates — sign up free to plan your next trip around it.

Fish recorded near this station

Community observations nearby

Merrimack River Bl Concord River At Lowell, MA has 21 fish species documented via iNaturalist research-grade observations within 10 km. These community-sourced records indicate fish presence in the vicinity.

Species include: White Catfish (Ameiurus catus), Yellow Bullhead (Ameiurus natalis), Brown Bullhead (Ameiurus nebulosus), White Sucker (Catostomus commersonii), European Carp (Cyprinus carpio), and 16 others.

One species above is flagged non-native or potentially invasive (European Carp). Records show what has been observed near this station, not what is native to the watershed.

Where these records come from

Evidence
Community observations nearby
Research-grade community observations (iNaturalist) recorded near this station, not a formal survey.
Records
21 species
from 65 individual records
Observed
Apr 28, 2018 – Nov 26, 2025
65 dated records