Merrimack River at Franklin Jct.
New Hampshire — Water Level & Flood Stage
Located in Merrimack County, New Hampshire on the Merrimack River. Live water level data from USGS gauge 01081500, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Major Flood
28 ft
54,500 cfs
Moderate Flood
22 ft
36,200 cfs
Minor Flood
16 ft
21,800 cfs
Action Stage
14 ft
18,000 cfs
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
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 |
| Mar 18, 1936 | 36.4 ft | 83,000 cfs |
| Nov 4, 1927 | 30.85 ft | 63,000 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 — even when your screen is off.
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.
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey, Observations courtesy of U.S. Army Corps of Engineers