Major Flood
25 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
23 ft
Minor Flood
21 ft
Action Stage
20 ft
What Floods at Each Level
30 ft
All delaware water gap recreation resources are impacted, including natural and cultural resources, archeological sites, visitor use facilities, and infrastructure such as roads, bridges, and utilities.
25 ft
Campsites in Worthington State Forest in New Jersey flood.
23 ft
Route 209 is closed.
22 ft
Many local roads that connect to Route 209, River Road, and other park roads are closed.
21 ft
Approach roads to the Shawnee Inn flood. Route 209 begins to flood.
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 18, 1955 | 37.4 ft | 260,000 cfs |
| Jun 28, 2006 | 33.87 ft | 225,000 cfs |
| Apr 3, 2005 | 33.24 ft | 215,000 cfs |
About This Gauge
Get Flood Alerts for Delaware 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 Delaware River at Tocks Island?
The Delaware River at Tocks Island gauge is maintained by USGS (site 01440200) 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 Delaware River at Tocks Island?
The NWS-defined flood stage for Delaware River at Tocks Island is 21 feet. Action stage begins at 20 feet. Moderate flooding starts at 23 feet, and major flooding at 25 feet.
How do I get alerts when Delaware River rises?
Download StormCast free on Google Play, go to River Gauges, and add Delaware River at Tocks Island 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 Delaware River at Tocks Island gauge located?
The gauge is located in Warren County, New Jersey at coordinates 41.0133°N, 75.0861°W. USGS site number: 01440200. 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