Minor Flood
11 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Action Stage
9 ft
What Floods at Each Level
15 ft
Backwater flooding into feeder streams results in multiple road closures in the Florence section of Northampton. In addition, Meadow Street in Northampton is flooded. Floodwaters inundate Maines Field, and floodwaters affect lowest lying homes in Leeds Center as well as lowest lying industries above the Pine Street Dam in Florence. Farm roads in the Oxbow floodplain are closed, as well as the Smith College River Walk Path.
14 ft
Floodwaters inundate Maines Field and result in the closure of Meadow Street. Floodwaters encroach on low lying homes in Leeds Center as well as lowest lying industries along the mill above the Pine Street Dam in Florence. Farm roads in the Oxbow floodplain are inundated as well as portions of the Smith College River Walk Path.
13 ft
River flooding result in the closure of Meadow Street. Floodwaters encroach on lowest lying homes in Leeds Center and lowest lying industries above the Pine Street Dam in Florence. Farm roads in the Oxbow floodplain near the Mill River are inundated and the Smith College River Walk Path is closed.
12 ft
The Smith College River Walk Path is flooded. Farm roads in the Oxbow floodplain near the Mill River in Northampton are inundated.
11 ft
Flooding occurs along the Smith College River Walk Path in Northampton.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Aug 28, 2011 | 16.42 ft | 7,486 cfs |
| Apr 16, 2007 | 15.58 ft | 6,553 cfs |
| Dec 18, 2023 | 14.37 ft | 4,970 cfs |
About This Gauge
Get Flood Alerts for Mill River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Mill River at Northampton?
The Mill River at Northampton gauge is maintained by USGS (site 01171500) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Mill River at Northampton?
The NWS-defined flood stage for Mill River at Northampton is 11 feet. Action stage begins at 9 feet. Moderate flooding starts at N/A feet, and major flooding at N/A feet.
How do I get alerts when Mill River rises?
Download StormCast free on Google Play, go to River Gauges, and add Mill River at Northampton to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Mill River at Northampton gauge located?
The gauge is located in Hampshire County, Massachusetts at coordinates 42.3190°N, 72.6651°W. USGS site number: 01171500. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Mill River
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Stage may be affected by ice.