Major Flood
11 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
9.5 ft
Minor Flood
8.5 ft
Action Stage
7 ft
What Floods at Each Level
15 ft
The Trenton Transit Center is flooded.
13 ft
NJ Transit and Amtrak rail lines are flooded shutting down service. Amtrak service between Philadelphia and Boston are cancelled. The neighborhood in the vicinity of North Clinton and North Olden Avenues flood. Homes and businesses take on water.
11 ft
North Olden Avenue begins to flood.
10 ft
Mulberry Street flooding increases. Evacuations possible.
9 ft
Mulberry Street begins to flood.
6.5 ft
Assunpink Park floods. George Page Park floods. Minor street flooding in Trenton.
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 28, 2011 | 15.12 ft | — |
| Jul 20, 1975 | 14.61 ft | 5,450 cfs |
| Sep 15, 1999 | 14.01 ft | 4,510 cfs |
Flood Inundation Map
NOAA has mapped what areas flood at different water levels for this gauge. View the interactive flood inundation map →
About This Gauge
USGS Site
NWS LID
TACN4
River
Assunpink Creek
County
Mercer, NJ
Coordinates
40.2242°N, 74.7492°W
Get Flood Alerts for Assunpink Creek
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 Assunpink Creek at Trenton?
The Assunpink Creek at Trenton gauge is maintained by USGS (site 01464000) 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 Assunpink Creek at Trenton?
The NWS-defined flood stage for Assunpink Creek at Trenton is 8.5 feet. Action stage begins at 7 feet. Moderate flooding starts at 9.5 feet, and major flooding at 11 feet.
How do I get alerts when Assunpink Creek rises?
Download StormCast free on Google Play, go to River Gauges, and add Assunpink Creek at Trenton 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 Assunpink Creek at Trenton gauge located?
The gauge is located in Mercer County, New Jersey at coordinates 40.2242°N, 74.7492°W. USGS site number: 01464000. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Assunpink Creek
On This River
Upstream: Assunpink Creek at Clarksville
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey