Major Flood
28 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
22 ft
Minor Flood
16 ft
Action Stage
14 ft
What Floods at Each Level
16 ft
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 | 36.4 ft | 83,000 cfs |
| Nov 4, 1927 | 30.85 ft | 63,000 cfs |
| Sep 21, 1938 | 29.5 ft | 59,200 cfs |
About This Gauge
USGS Site
NWS LID
FRJN3
River
Merrimack River
County
Merrimack, NH
Coordinates
43.4229°N, 71.6529°W
Get Flood Alerts for Merrimack 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 Merrimack River at Franklin Jct.?
The Merrimack River at Franklin Jct. gauge is maintained by USGS (site 01081500) 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 Merrimack River at Franklin Jct.?
The NWS-defined flood stage for Merrimack River at Franklin Jct. is 16 feet. Action stage begins at 14 feet. Moderate flooding starts at 22 feet, and major flooding at 28 feet.
How do I get alerts when Merrimack River rises?
Download StormCast free on Google Play, go to River Gauges, and add Merrimack River at Franklin Jct. 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 Merrimack River at Franklin Jct. gauge located?
The gauge is located in Merrimack County, New Hampshire at coordinates 43.4229°N, 71.6529°W. USGS site number: 01081500. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Merrimack River
On This River
Downstream: Merrimack River at Goffs Falls
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey, Observations courtesy of U.S. Army Corps of Engineers