Connecticut River at North Walpole

1. 52.30 ftMaximum reportable stage of river gage.
2. 38.00 ftThis is a life threatening flood. Flooding of this magnitude has not been experienced since the Great New England Hurricane of 1938.
3. 34.00 ftLow lying areas along the river from Walpole to Hinsdale are flooded. Roadways bordering the river may be impassable including stretches of Route 5 in southern Vermont.
4. 32.00 ftExtensive flooding occurs along stretches of Route 5, especially in Westminster, affecting homes and businesses.
5. 31.00 ftLow lying businesses and residences from Walpole and Westminster to the Massachusetts border experience flooding along the river. Significant flooding occurs along route 5 in Vermont, especially in Westminster. Bridges crossing the river could be shut down. Backwater flooding likely along tributary streams.
6. 29.00 ftRoute 5 is inundated with up to 1 foot of water in sections of Westminster. Minor flooding of some farmland along the river occurs from Walpole south to the Massachusetts border.
7. 28.00 ftMinor flooding affects low lying areas along the river from Walpole and Westminster downstream to the Massachusetts border. Portions of low lying roads along the river are affected including Route 5 and some adjacent businesses in Westminster. Farming interests along the river could experience flooding.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 21, 2026.

Most recent crests

• December 19, 2023: 24.53 ft
• July 11, 2023: 28.22 ft
• August 29, 2011: 31.38 ft
• April 23, 2001: 25.31 ft
• April 1, 1998: 25.75 ft
• May 13, 1996: 24.15 ft
• January 18, 1995: 16.75 ft
• April 17, 1994: 25.25 ft
• April 1, 1987: 29.05 ft
• May 31, 1984: 27.82 ft

• UpstreamConnecticut River at West Lebanon
• DownstreamConnecticut River at Montague
• Cold River
• Williams River at Rockingham
• Ashuelot River
• Ashuelot River
• West River at Townshend Lake
• Black River
• North Springfield Dam at North Springfield
• Ashuelot River

Forecasts by the Northeast River Forecast Center. Forecasts are issued routinely year-round.

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.