OFFICIAL HYDROGRAPHIC OBSERVATION REPORT US

Merrimack River Water Level & Telemetry

Gauge Station: Merrimack River below Concord River At Lowell • Northeast• United States

▲ HIGH WATER

Water Level (STAGE)

43.32 ft

Relative to baseline datum

Discharge / Flow

5,140 ft3/s

Instantaneous volumetric discharge

Elevation

4 ft

Elevation above sea level

VERIFIED TELEMETRY • SOURCE: USGS NWIS • GAUGE ID: 01100000 • COORD: 42.646°, -71.298°

OBSERVED: Oct 2, 2026, 12:27 AM

Merrimack River Where It Flows & Gauge Station

HYDROGRAPHIC MAP & GAUGING LOCATION

PRECIPITATION RADAR

Water Level & Flow Hydrograph (Merrimack River)

WATER LEVEL & FLOW HYDROGRAPH: GAGE HEIGHT, FT (ft)

CURRENT READING: 43.32 ft

Recorded Telemetry

Continuous Observations

GEOGRAPHIC COURSE & HYDROLOGICAL REACH

Where It Flows: Merrimack River

The Merrimack River is a vital waterway situated within United States, flowing predominantly across the Northeast basin. Continuous hydrological surveillance at the Merrimack River below Concord River At Lowell gauging station (coordinates: 42.6459°N, -71.2984°W) allows real-time quantification of upstream runoff, seasonal snowmelt pulses, and meteorological flood crests.

COUNTRY

United States

REGION / STATE

Northeast

CATCHMENT BASIN

Regional Watershed

GAUGING LOCATION

Merrimack River belo

MONITORING STATIONS & GAUGES ALONG (2) UPSTREAM & DOWNSTREAM POINTS

Station / Location	REGION / STATE	Coordinates	Station ID	Action
Merrimack River below Concord River At Lowell CURRENT GAUGE	Northeast	42.646°, -71.298°	01100000	Viewing
Merrimack River At Franklin Junction	Northeast	43.423°, -71.653°	01081500	View Level →

FREQUENTLY ASKED QUESTIONS ABOUT WATER LEVELS

Frequently Asked Questions About Water Levels: Merrimack River

What is the current Merrimack River water level today? ↓

As of the latest continuous telemetry report, the Merrimack River water level at Merrimack River below Concord River At Lowell is measured at 43.32 ft with an observed discharge of 5,140 ft3/s.

Where is the official monitoring gauge for Merrimack River located? ↓

The primary monitoring station for Merrimack River is located at coordinates 42.6459° Latitude and -71.2984° Longitude in Northeast. Telemetry is recorded under site identifier 01100000.

What are normal water levels and flood stages for Merrimack River? ↓

Typical hydrological levels on the Merrimack River generally fluctuate within the standard median band and seasonal bankfull discharge. When stage exceeds these parameters, localized bank overflow and flood advisories may be triggered.

Where does the Merrimack River flow? ↓

The Merrimack River courses through United States across the Northeast basin. It provides critical natural drainage and freshwater replenishment across its catchment reach.