Is the Merrimack River flooding?
The Merrimack River is tracked by 2 USGS streamgauges in Massachusetts. This page compares each gauge’s live water level against its official National Weather Service flood stage, refreshed every 15 minutes, so you can tell whether the Merrimack River is running normal, rising toward flood stage, or already flooding. 2 of 2 gauges have both a usable water-level reading and a published minor flood stage. Gauges without a published flood stage show water level and flow only. For nearby rivers, see all Massachusetts river levels.
River facts
The longest-running gauge on this river is Merrimack River at Lawrence, MA. The highest level ever recorded there was 48.00 ft on 20 March 1936, carrying 174,000 cfs. Peak records there go back to 1852 (73 annual peaks). It is currently at 9.31 ft, 38.7 ft below that record.
| Gauge | Status | Stage | Flood stage | Updated |
|---|---|---|---|---|
| Merrimack River below Concord River at Lowell, MA | No flooding | 41.48 ft | 52 ft | |
| Merrimack River at Lawrence, MA | No flooding | 9.31 ft | 24 ft |