Is the Ammonoosuc River flooding?

New Hampshire · 2 gauges · New Hampshire river levels

The Ammonoosuc River is tracked by 2 USGS streamgauges in New Hampshire. 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 Ammonoosuc River is running normal, rising toward flood stage, or already flooding. 1 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 New Hampshire river levels.

data refreshed 7 min ago

Readings may be delayed; check each observation time below. This gauge summary does not rule out flooding on unmonitored stretches or nearby streets.

River facts

The longest-running gauge on this river is Ammonoosuc River at Bethlehem Junction, NH. The highest level ever recorded there was 12.34 ft on 12 November 1995, carrying 11,300 cfs. Peak records there go back to 1940 (86 annual peaks). It is currently at 1.52 ft, 10.8 ft below that record.

Drains 88 sq mi · gauge elevation 1,180 ft · source: USGS peak-flow record

GaugeStatusStageFlood stageUpdated
Ammonoosuc River at Bethlehem Junction, NHNo flooding1.52 ft8 ft
Ammonoosuc River below Lisbon Dam, at Lisbon, NHNo current data
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.