Major Flood
14 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
12 ft
Minor Flood
10 ft
Action Stage
9 ft
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jan 28, 1994 | 14.26 ft | 2,000 cfs |
| Aug 28, 2011 | 12.92 ft | — |
| Jan 24, 1979 | 12.07 ft | 6,910 cfs |
About This Gauge
USGS Site
NWS LID
HBRN4
River
South Branch Raritan River
County
Hunterdon, NJ
Coordinates
40.6778°N, 74.8792°W
Get Flood Alerts for South Branch Raritan 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 South Branch Raritan River at High Bridge?
The South Branch Raritan River at High Bridge gauge is maintained by USGS (site 01396500) 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 South Branch Raritan River at High Bridge?
The NWS-defined flood stage for South Branch Raritan River at High Bridge is 10 feet. Action stage begins at 9 feet. Moderate flooding starts at 12 feet, and major flooding at 14 feet.
How do I get alerts when South Branch Raritan River rises?
Download StormCast free on Google Play, go to River Gauges, and add South Branch Raritan River at High Bridge 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 South Branch Raritan River at High Bridge gauge located?
The gauge is located in Hunterdon County, New Jersey at coordinates 40.6778°N, 74.8792°W. USGS site number: 01396500. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on South Branch Raritan River
On This River
Downstream: South Branch Raritan River at Stanton
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey