Piscataquog River at Goffstown, NH
River level and flood forecast · Hillsborough County
The river is 5.6 ft below flood stage (9 ft).
Forecast to fall to 3.1 ft by Thu, Oct 15, 8 AM.
Flow: 45 cubic feet per second (USGS).
Normal for October 13.
Usual for October 13: 19 to 148 cubic feet per second (the middle half of 48 years).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 11:14 AM. Forecasts change as rain falls and as upstream water arrives.
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An email when the National Weather Service forecasts Piscataquog River at Goffstown to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 12 ft |
| Moderate flood stage | 10 ft |
| Flood stage | 9 ft |
| Action stage | 7 ft |
| Record crest (September 21, 1938) | 17.52 ft |
What floods at each level
From the National Weather Service, highest first.
- 13 ftFlooding of primary and secondary roads along the river occurs. In Goffstown this includes Henry Bridge Road, Water Road, Sarette Road, and Dumont Park Road. In Manchester, Bass Island and Piscqtaquog River Park flood.
- 11 ftFlooding begins near the village of Riverdale and areas below Glen Lake.
- 9 ftMinor lowland flooding begins.
Highest crests on record
- 17.52 ft — September 21, 1938
- 16.03 ft — March 19, 1936
- 13.05 ft — April 16, 2007
- 12.55 ft — May 15, 2006
- 11.28 ft — April 6, 1987
Recent crests: 9.31 ft (May 10, 2025) · 10.15 ft (December 19, 2023) · 9.13 ft (December 23, 2022) · 9.79 ft (March 31, 2010) · 10.1 ft (March 15, 2010)
Highest flow on record
21,900 cubic feet per second — September 21, 1938. From the USGS's yearly peaks since 1936.
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (GFFN3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.