Rivers in New Hampshire
Upper Ammonoosuc River near Groveton
Below flood stage
1.78ftStage
Observed Sun, Sep 20, 12:30 PM EDT
- Flood stage
- 7.50 ft
- Record crest
- 12.01 ft1969
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 10.00 ft |
| Moderate flood | 9.00 ft |
| Minor flood | 7.50 ft |
| Action | 6.50 ft |
- 10.00 ftMajor flooding occurs. Homes on Brooklyn Street flooded in Groveton. Water up to homes off West Street.
- 9.50 ftCumberland Road and Northside Road flooded in numerous places in Groveton.
- 9.00 ftModerate flooding occurs. Non-residential properties off West Street inundated. Water up to Winter Street and Route 110 in Groveton.
- 8.50 ftIn Stark, water is up to properties on Corkum Road and Northside Roads.
- 8.00 ftWater up to Cumberland Street or Northside Road in Northumberland. Northside Road in Stark flooded.
- 7.50 ftMinor floooding occurs. Mechanics Street inundated along industrial areas in Groveton. Water encroaching on properties on Brooklyn Street and Mountain View Avenue.
- 6.00 ftRiver at bankfull.
Crest history
9 crests on NOAA’s list since 1953.
| # | Date | Stage |
|---|---|---|
| 1 | May 20, 1969 | 12.01 ft |
| 2 | March 27, 1953 | 9.44 ft |
| 3 | April 23, 1954 | 9.01 ft |
| 4 | March 31, 1998 | 8.97 ft |
| 5 | April 14, 2002 | 8.91 ft |
| 6 | April 15, 2014 | 8.78 ft |
| 7 | April 21, 2019 | 8.64 ft |
| 8 | April 24, 1996 | 8.64 ft |
| 9 | December 28, 2023 | 6.96 ft |
Most recent crests
- December 28, 2023: 6.96 ft
- April 21, 2019: 8.64 ft
- April 15, 2014: 8.78 ft
- April 14, 2002: 8.91 ft
- March 31, 1998: 8.97 ft
- April 24, 1996: 8.64 ft
- May 20, 1969: 12.01 ft
- April 23, 1954: 9.01 ft
- March 27, 1953: 9.44 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Northeast River Forecast Center.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.