Merrimack River

States: New Hampshire, Massachusetts Length: 110 miles HUC Basin: 01 3 active gauges

Live and historical streamflow for every active USGS gauge on the Merrimack River — current discharge (CFS), gage height, and how today's flow ranks against the long-term record for this date. Latest reading .

Station Discharge (CFS) Gage Ht (ft) Condition Flood Stage (ft)
Merrimack River at Franklin Junction, NH
NH
3,570 6.51 High 16.0 ft
Merrimack River below Concord River at Lowell, MA
MA
7,160 44.00 Normal 52.0 ft
Merrimack River near Goffs Falls, Below Manchester, NH
NH
5,950 5.39 High 11.0 ft

About the Merrimack River

The Merrimack River is monitored by 3 active USGS stream gauges across New Hampshire and Massachusetts. The river runs approximately 110 miles. 2 of 3 gauges are running above normal for this date. The strongest flow on the river right now is at Merrimack River below Concord River at Lowell, MA (7,160 cfs).

See the glossary for how percentile rank and flow conditions are calculated from the long-term USGS record.

Data source: USGS National Water Information System