Major Flood
21 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.
Moderate Flood
18 ft
Minor Flood
13 ft
Action Stage
10 ft
What Floods at Each Level
22 ft
Flood waters 5 to 6 feet deep on route 175A in Holderness.
20.1 ft
Flood waters rise to the doors of the PSU physical education center and the PSU ice arena.
18 ft
South River Road and Avery Street flood in Holderness.
15.5 ft
Flood waters over the road at the Irving station on route 175A in Holderness.
15 ft
Flood waters up to the road at the Irving station on route 175A in Holderness.
14 ft
Water enters the parking lot behind the PSU ice arena.
13 ft
Minor lowland flooding begins.
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 |
|---|---|---|
| Mar 18, 1936 | 29 ft | 65,400 cfs |
| Nov 3, 1927 | 27.4 ft | 60,000 cfs |
| Sep 20, 1938 | 23.62 ft | 50,900 cfs |
About This Gauge
USGS Site
NWS LID
PLMN3
River
Pemigewasset River
County
Grafton, NH
Coordinates
43.7592°N, 71.6856°W
Get Flood Alerts for Pemigewasset 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 Pemigewasset River at Plymouth?
The Pemigewasset River at Plymouth gauge is maintained by USGS (site 01076500) 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 Pemigewasset River at Plymouth?
The NWS-defined flood stage for Pemigewasset River at Plymouth is 13 feet. Action stage begins at 10 feet. Moderate flooding starts at 18 feet, and major flooding at 21 feet.
How do I get alerts when Pemigewasset River rises?
Download StormCast free on Google Play, go to River Gauges, and add Pemigewasset River at Plymouth 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 Pemigewasset River at Plymouth gauge located?
The gauge is located in Grafton County, New Hampshire at coordinates 43.7592°N, 71.6856°W. USGS site number: 01076500. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Pemigewasset River
On This River
Upstream: Pemigewasset River at Woodstock
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey