Rivers in Massachusetts
Neponset River at Norwood
Below flood stage
5.52ftStage
Observed Wed, Sep 23, 5:00 AM EDT
- Flood stage
- 9.00 ft
- Forecast crest
- 5.50 ftWed, Sep 23, 8:00 AM EDT
- Record crest
- 14.65 ft1955
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 11.00 ft |
| Moderate flood | 10.00 ft |
| Minor flood | 9.00 ft |
| Action | 8.00 ft |
- 12.00 ftSignificant flooding is expected along the river in Walpole and Norwood. If evacuations are needed, do so immediately. Know alternate routes for travel in case your normal route becomes flooded. Norwood Memorial Airport is substantially impacted. A portion of Route 27 in Walpole near the commuter rail station is impassable. Backwater flooding occurs on Neponset Street in Canton. Floodwaters affect homes along Dean Street in Norwood near Route 1.
- 11.50 ftFlooding impacts homes and businesses along the river in Walpole and Norwood, including homes along the river on Dean Street in Norwood near Route 1. A portion of Route 27 in Walpole near the commuter rail station is impassable. Backwater flooding occurs on a portion of Neponset Street in Canton. Flooding also occurs at the Norwood Memorial Airport.
- 11.00 ftFlooding impacts homes and businesses along the river in Walpole and Norwood, including homes along the river on Dean Street in Norwood near Route 1. A portion of Route 27 in Walpole near the commuter rail station is impassable. Norwood Memorial Airport is substantially impacted.
- 10.50 ftFlood waters reach homes along the river on Dean Street in Norwood near Route 1. Flooding may also affect a portion of Route 27 in Walpole near the commuter rail station.
- 10.00 ftMinor flooding affects homes along the river on Dean Street near Route 1 in Norwood. Widespread lowland flooding can also be expected.
- 9.00 ftMinor lowland flooding occurs along the Neponset River in Norwood.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | Under 5% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 21, 2026.
Crest history
50 crests on NOAA’s list since 1938.
| # | Date | Stage |
|---|---|---|
| 1 | August 19, 1955 | 14.65 ft |
| 2 | November 5, 1955 | 11.32 ft |
| 3 | March 30, 2010 | 11.16 ft |
| 4 | March 15, 2010 | 11.07 ft |
| 5 | July 24, 1938 | 11.05 ft |
| 6 | May 9, 1954 | 10.90 ft |
| 7 | June 14, 1998 | 10.89 ft |
| 8 | January 27, 1958 | 10.69 ft |
| 9 | March 18, 1968 | 10.48 ft |
| 10 | December 7, 1945 | 10.38 ft |
| 11 | March 21, 1948 | 10.30 ft |
| 12 | March 7, 1959 | 10.25 ft |
| 13 | May 31, 1984 | 10.22 ft |
| 14 | March 30, 1953 | 10.14 ft |
| 15 | March 12, 1952 | 10.08 ft |
| 16 | October 15, 2005 | 9.96 ft |
| 17 | January 26, 1979 | 9.89 ft |
| 18 | February 8, 1941 | 9.86 ft |
| 19 | April 3, 1951 | 9.64 ft |
| 20 | January 23, 1957 | 9.55 ft |
| 21 | April 22, 1940 | 9.55 ft |
| 22 | March 7, 1945 | 9.52 ft |
| 23 | June 28, 2020 | 9.46 ft |
| 24 | June 17, 2001 | 9.46 ft |
| 25 | October 21, 1996 | 9.45 ft |
Most recent crests
- January 13, 2024: 9.04 ft
- January 10, 2024: 9.41 ft
- December 19, 2023: 9.07 ft
- June 28, 2020: 9.46 ft
- March 30, 2010: 11.16 ft
- March 15, 2010: 11.07 ft
- June 8, 2006: 9.28 ft
- October 15, 2005: 9.96 ft
- March 29, 2005: 8.48 ft
- April 2, 2004: 8.26 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Northeast River Forecast Center. Forecasts are issued routinely year-round. Stage may be affected by ice.
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.