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A new USGS gauge is being installed on the new Route 213 Bridge near Langhorne.  During the gage checkout period, continue to click here for forecast hydrograph, click here to access temporary USGS observations from a gage 0.55 miles downstream located at Brownsville Rd.

Hydrograph River at a Glance Download Inundation
Mapping
Assunpink Creek at Trenton Stage (ft)Flow (kcfs)Observed: 2.79 ft at 8:00AM Dec 15, 2017Observed: 2.79 ft at 8:15AM Dec 15, 2017Observed: 2.79 ft at 8:30AM Dec 15, 2017Observed: 2.79 ft at 8:45AM Dec 15, 2017Observed: 2.79 ft at 9:00AM Dec 15, 2017Observed: 2.79 ft at 9:15AM Dec 15, 2017Observed: 2.8 ft at 9:30AM Dec 15, 2017Observed: 2.8 ft at 9:45AM Dec 15, 2017Observed: 2.81 ft at 10:00AM Dec 15, 2017Observed: 2.81 ft at 10:15AM Dec 15, 2017Observed: 2.81 ft at 10:30AM Dec 15, 2017Observed: 2.82 ft at 10:45AM Dec 15, 2017Observed: 2.82 ft at 11:00AM Dec 15, 2017Observed: 2.82 ft at 11:15AM Dec 15, 2017Observed: 2.82 ft at 11:30AM Dec 15, 2017Observed: 2.82 ft at 11:45AM Dec 15, 2017Observed: 2.82 ft at 12:00PM Dec 15, 2017Observed: 2.82 ft at 12:15PM Dec 15, 2017Observed: 2.83 ft at 12:30PM Dec 15, 2017Observed: 2.83 ft at 12:45PM Dec 15, 2017Observed: 2.83 ft at 1:00PM Dec 15, 2017Observed: 2.83 ft at 1:15PM Dec 15, 2017Observed: 2.83 ft at 1:30PM Dec 15, 2017Observed: 2.83 ft at 1:45PM Dec 15, 2017Observed: 2.83 ft at 2:00PM Dec 15, 2017Observed: 2.83 ft at 2:15PM Dec 15, 2017Observed: 2.83 ft at 2:30PM Dec 15, 2017Observed: 2.83 ft at 2:45PM Dec 15, 2017Observed: 2.83 ft at 3:00PM Dec 15, 2017Observed: 2.84 ft at 3:15PM Dec 15, 2017Observed: 2.84 ft at 3:30PM Dec 15, 2017Observed: 2.84 ft at 3:45PM Dec 15, 2017Observed: 2.84 ft at 4:00PM Dec 15, 2017Observed: 2.85 ft at 4:15PM Dec 15, 2017Observed: 2.85 ft at 4:30PM Dec 15, 2017Observed: 2.85 ft at 4:45PM Dec 15, 2017Observed: 2.85 ft at 5:00PM Dec 15, 2017Observed: 2.85 ft at 5:15PM Dec 15, 2017Observed: 2.86 ft at 5:30PM Dec 15, 2017Observed: 2.86 ft at 5:45PM Dec 15, 2017Observed: 2.86 ft at 6:00PM Dec 15, 2017Observed: 2.86 ft at 6:15PM Dec 15, 2017Observed: 2.86 ft at 6:30PM Dec 15, 2017Observed: 2.87 ft at 6:45PM Dec 15, 2017Observed: 2.87 ft at 7:00PM Dec 15, 2017Observed: 2.87 ft at 7:15PM Dec 15, 2017Highest Observation: 2.88 ft at 7:30PM Dec 15, 2017Highest Observation: 2.88 ft at 7:45PM Dec 15, 2017Highest Observation: 2.88 ft at 8:00PM Dec 15, 2017Highest Observation: 2.88 ft at 8:15PM Dec 15, 2017Highest Observation: 2.88 ft at 8:30PM Dec 15, 2017Highest Observation: 2.88 ft at 8:45PM Dec 15, 2017Highest Observation: 2.88 ft at 9:00PM Dec 15, 2017Highest Observation: 2.88 ft at 9:15PM Dec 15, 2017Highest Observation: 2.88 ft at 9:30PM Dec 15, 2017Highest Observation: 2.88 ft at 9:45PM Dec 15, 2017Highest Observation: 2.88 ft at 10:00PM Dec 15, 2017Highest Observation: 2.88 ft at 10:15PM Dec 15, 2017Highest Observation: 2.88 ft at 10:30PM Dec 15, 2017Observed: 2.87 ft at 10:45PM Dec 15, 2017Observed: 2.87 ft at 11:00PM Dec 15, 2017Observed: 2.87 ft at 11:15PM Dec 15, 2017Observed: 2.87 ft at 11:30PM Dec 15, 2017Observed: 2.87 ft at 11:45PM Dec 15, 2017Observed: 2.86 ft at 12:00AM Dec 16, 2017Observed: 2.86 ft at 12:15AM Dec 16, 2017Observed: 2.86 ft at 12:30AM Dec 16, 2017Observed: 2.85 ft at 12:45AM Dec 16, 2017Observed: 2.85 ft at 1:00AM Dec 16, 2017Observed: 2.85 ft at 1:15AM Dec 16, 2017Observed: 2.85 ft at 1:30AM Dec 16, 2017Observed: 2.84 ft at 1:45AM Dec 16, 2017Observed: 2.84 ft at 2:00AM Dec 16, 2017Observed: 2.84 ft at 2:15AM Dec 16, 2017Observed: 2.83 ft at 2:30AM Dec 16, 2017Observed: 2.83 ft at 2:45AM Dec 16, 2017Observed: 2.83 ft at 3:00AM Dec 16, 2017Observed: 2.82 ft at 3:15AM Dec 16, 2017Observed: 2.82 ft at 3:30AM Dec 16, 2017Observed: 2.82 ft at 3:45AM Dec 16, 2017Observed: 2.81 ft at 4:00AM Dec 16, 2017Observed: 2.81 ft at 4:15AM Dec 16, 2017Observed: 2.8 ft at 4:30AM Dec 16, 2017Observed: 2.8 ft at 4:45AM Dec 16, 2017Observed: 2.79 ft at 5:00AM Dec 16, 2017Observed: 2.79 ft at 5:15AM Dec 16, 2017Observed: 2.79 ft at 5:30AM Dec 16, 2017Observed: 2.78 ft at 5:45AM Dec 16, 2017Observed: 2.78 ft at 6:00AM Dec 16, 2017Observed: 2.77 ft at 6:15AM Dec 16, 2017Observed: 2.77 ft at 6:30AM Dec 16, 2017Observed: 2.76 ft at 6:45AM Dec 16, 2017Observed: 2.76 ft at 7:00AM Dec 16, 2017Observed: 2.76 ft at 7:15AM Dec 16, 2017Observed: 2.75 ft at 7:30AM Dec 16, 2017Observed: 2.75 ft at 7:45AM Dec 16, 2017Observed: 2.75 ft at 8:00AM Dec 16, 2017Observed: 2.75 ft at 8:15AM Dec 16, 2017Observed: 2.74 ft at 8:30AM Dec 16, 2017Observed: 2.74 ft at 8:45AM Dec 16, 2017Observed: 2.74 ft at 9:00AM Dec 16, 2017Observed: 2.73 ft at 9:15AM Dec 16, 2017Observed: 2.73 ft at 9:30AM Dec 16, 2017Observed: 2.73 ft at 9:45AM Dec 16, 2017Observed: 2.72 ft at 10:00AM Dec 16, 2017Observed: 2.72 ft at 10:15AM Dec 16, 2017Observed: 2.72 ft at 10:30AM Dec 16, 2017Observed: 2.72 ft at 10:45AM Dec 16, 2017Observed: 2.72 ft at 11:00AM Dec 16, 2017Observed: 2.72 ft at 11:15AM Dec 16, 2017Observed: 2.72 ft at 11:30AM Dec 16, 2017Observed: 2.72 ft at 11:45AM Dec 16, 2017Observed: 2.72 ft at 12:00PM Dec 16, 2017Observed: 2.72 ft at 12:15PM Dec 16, 2017Observed: 2.72 ft at 12:30PM Dec 16, 2017Observed: 2.73 ft at 12:45PM Dec 16, 2017Observed: 2.73 ft at 1:00PM Dec 16, 2017Observed: 2.73 ft at 1:15PM Dec 16, 2017Observed: 2.73 ft at 1:30PM Dec 16, 2017Observed: 2.73 ft at 1:45PM Dec 16, 2017Observed: 2.74 ft at 2:00PM Dec 16, 2017Observed: 2.74 ft at 2:15PM Dec 16, 2017Observed: 2.74 ft at 2:30PM Dec 16, 2017Observed: 2.74 ft at 2:45PM Dec 16, 2017Observed: 2.74 ft at 3:00PM Dec 16, 2017Observed: 2.74 ft at 3:15PM Dec 16, 2017Observed: 2.74 ft at 3:30PM Dec 16, 2017Observed: 2.75 ft at 3:45PM Dec 16, 2017Observed: 2.75 ft at 4:00PM Dec 16, 2017Observed: 2.75 ft at 4:15PM Dec 16, 2017Observed: 2.75 ft at 4:30PM Dec 16, 2017Observed: 2.75 ft at 4:45PM Dec 16, 2017Observed: 2.74 ft at 5:00PM Dec 16, 2017Observed: 2.74 ft at 5:15PM Dec 16, 2017Observed: 2.74 ft at 5:30PM Dec 16, 2017Observed: 2.74 ft at 5:45PM Dec 16, 2017Observed: 2.74 ft at 6:00PM Dec 16, 2017Observed: 2.74 ft at 6:15PM Dec 16, 2017Observed: 2.74 ft at 6:30PM Dec 16, 2017Observed: 2.74 ft at 6:45PM Dec 16, 2017Observed: 2.74 ft at 7:00PM Dec 16, 2017Observed: 2.74 ft at 7:15PM Dec 16, 2017Observed: 2.74 ft at 7:30PM Dec 16, 2017Observed: 2.74 ft at 7:45PM Dec 16, 2017Observed: 2.75 ft at 8:00PM Dec 16, 2017Observed: 2.75 ft at 8:15PM Dec 16, 2017Observed: 2.75 ft at 8:30PM Dec 16, 2017Observed: 2.75 ft at 8:45PM Dec 16, 2017Observed: 2.75 ft at 9:00PM Dec 16, 2017Observed: 2.75 ft at 9:15PM Dec 16, 2017Observed: 2.75 ft at 9:30PM Dec 16, 2017Observed: 2.75 ft at 9:45PM Dec 16, 2017Observed: 2.75 ft at 10:00PM Dec 16, 2017Observed: 2.75 ft at 10:15PM Dec 16, 2017Observed: 2.75 ft at 10:30PM Dec 16, 2017Observed: 2.75 ft at 10:45PM Dec 16, 2017Observed: 2.75 ft at 11:00PM Dec 16, 2017Observed: 2.75 ft at 11:15PM Dec 16, 2017Observed: 2.76 ft at 11:30PM Dec 16, 2017Observed: 2.76 ft at 11:45PM Dec 16, 2017Observed: 2.76 ft at 12:00AM Dec 17, 2017Observed: 2.76 ft at 12:15AM Dec 17, 2017Observed: 2.76 ft at 12:30AM Dec 17, 2017Observed: 2.76 ft at 12:45AM Dec 17, 2017Observed: 2.76 ft at 1:00AM Dec 17, 2017Observed: 2.76 ft at 1:15AM Dec 17, 2017Observed: 2.76 ft at 1:30AM Dec 17, 2017Observed: 2.76 ft at 1:45AM Dec 17, 2017Observed: 2.76 ft at 2:00AM Dec 17, 2017Observed: 2.76 ft at 2:15AM Dec 17, 2017Observed: 2.76 ft at 2:30AM Dec 17, 2017Observed: 2.76 ft at 2:45AM Dec 17, 2017Observed: 2.76 ft at 3:00AM Dec 17, 2017Observed: 2.76 ft at 3:15AM Dec 17, 2017Observed: 2.76 ft at 3:30AM Dec 17, 2017Observed: 2.76 ft at 3:45AM Dec 17, 2017Observed: 2.75 ft at 4:00AM Dec 17, 2017Observed: 2.75 ft at 4:15AM Dec 17, 2017Observed: 2.75 ft at 4:30AM Dec 17, 2017Observed: 2.75 ft at 4:45AM Dec 17, 2017Observed: 2.75 ft at 5:00AM Dec 17, 2017Observed: 2.75 ft at 5:15AM Dec 17, 2017Observed: 2.75 ft at 5:30AM Dec 17, 2017Observed: 2.75 ft at 5:45AM Dec 17, 2017Observed: 2.75 ft at 6:00AM Dec 17, 2017Observed: 2.75 ft at 6:15AM Dec 17, 2017Observed: 2.75 ft at 6:30AM Dec 17, 2017Observed: 2.75 ft at 6:45AM Dec 17, 2017Observed: 2.74 ft at 7:00AM Dec 17, 2017Observed: 2.74 ft at 7:15AM Dec 17, 2017Observed: 2.74 ft at 7:30AM Dec 17, 2017Observed: 2.74 ft at 7:45AM Dec 17, 2017Observed: 2.74 ft at 8:00AM Dec 17, 2017Observed: 2.74 ft at 8:15AM Dec 17, 2017Observed: 2.74 ft at 8:30AM Dec 17, 2017Observed: 2.74 ft at 8:45AM Dec 17, 2017Observed: 2.74 ft at 9:00AM Dec 17, 2017Observed: 2.74 ft at 9:15AM Dec 17, 2017Observed: 2.74 ft at 9:30AM Dec 17, 2017Observed: 2.74 ft at 9:45AM Dec 17, 2017Observed: 2.75 ft at 10:00AM Dec 17, 2017Observed: 2.75 ft at 10:15AM Dec 17, 2017Observed: 2.75 ft at 10:30AM Dec 17, 2017Observed: 2.76 ft at 10:45AM Dec 17, 2017Observed: 2.76 ft at 11:00AM Dec 17, 2017Observed: 2.77 ft at 11:15AM Dec 17, 2017Observed: 2.77 ft at 11:30AM Dec 17, 2017Observed: 2.78 ft at 11:45AM Dec 17, 2017Observed: 2.78 ft at 12:00PM Dec 17, 2017Observed: 2.79 ft at 12:15PM Dec 17, 2017Observed: 2.79 ft at 12:30PM Dec 17, 2017Observed: 2.8 ft at 12:45PM Dec 17, 2017Observed: 2.8 ft at 1:00PM Dec 17, 2017Observed: 2.81 ft at 1:15PM Dec 17, 2017Observed: 2.81 ft at 1:30PM Dec 17, 2017Observed: 2.81 ft at 1:45PM Dec 17, 2017Observed: 2.81 ft at 2:00PM Dec 17, 2017Observed: 2.82 ft at 2:15PM Dec 17, 2017Observed: 2.82 ft at 2:30PM Dec 17, 2017Observed: 2.82 ft at 2:45PM Dec 17, 2017Observed: 2.82 ft at 3:00PM Dec 17, 2017Observed: 2.82 ft at 3:15PM Dec 17, 2017Observed: 2.82 ft at 3:30PM Dec 17, 2017Observed: 2.82 ft at 3:45PM Dec 17, 2017Observed: 2.82 ft at 4:00PM Dec 17, 2017Observed: 2.82 ft at 4:15PM Dec 17, 2017Observed: 2.82 ft at 4:30PM Dec 17, 2017Observed: 2.82 ft at 4:45PM Dec 17, 2017Observed: 2.82 ft at 5:00PM Dec 17, 2017Observed: 2.82 ft at 5:15PM Dec 17, 2017Observed: 2.82 ft at 5:30PM Dec 17, 2017Observed: 2.82 ft at 5:45PM Dec 17, 2017Observed: 2.82 ft at 6:00PM Dec 17, 2017Observed: 2.82 ft at 6:15PM Dec 17, 2017Observed: 2.82 ft at 6:30PM Dec 17, 2017Observed: 2.82 ft at 6:45PM Dec 17, 2017Observed: 2.82 ft at 7:00PM Dec 17, 2017Observed: 2.82 ft at 7:15PM Dec 17, 2017Observed: 2.82 ft at 7:30PM Dec 17, 2017Observed: 2.82 ft at 7:45PM Dec 17, 2017Observed: 2.82 ft at 8:00PM Dec 17, 2017Observed: 2.82 ft at 8:15PM Dec 17, 2017Observed: 2.82 ft at 8:30PM Dec 17, 2017Observed: 2.82 ft at 8:45PM Dec 17, 2017Observed: 2.82 ft at 9:00PM Dec 17, 2017Observed: 2.82 ft at 9:15PM Dec 17, 2017Observed: 2.82 ft at 9:30PM Dec 17, 2017Observed: 2.82 ft at 9:45PM Dec 17, 2017Observed: 2.82 ft at 10:00PM Dec 17, 2017Observed: 2.82 ft at 10:15PM Dec 17, 2017Observed: 2.82 ft at 10:30PM Dec 17, 2017Observed: 2.82 ft at 10:45PM Dec 17, 2017Observed: 2.82 ft at 11:00PM Dec 17, 2017Observed: 2.82 ft at 11:15PM Dec 17, 2017Observed: 2.82 ft at 11:30PM Dec 17, 2017Observed: 2.82 ft at 11:45PM Dec 17, 2017Observed: 2.82 ft at 12:00AM Dec 18, 2017Observed: 2.82 ft at 12:15AM Dec 18, 2017Observed: 2.82 ft at 12:30AM Dec 18, 2017Observed: 2.82 ft at 12:45AM Dec 18, 2017Observed: 2.82 ft at 1:00AM Dec 18, 2017Observed: 2.82 ft at 1:15AM Dec 18, 2017Observed: 2.82 ft at 1:30AM Dec 18, 2017Observed: 2.82 ft at 1:45AM Dec 18, 2017Observed: 2.82 ft at 2:00AM Dec 18, 2017Observed: 2.82 ft at 2:15AM Dec 18, 2017Observed: 2.82 ft at 2:30AM Dec 18, 2017Observed: 2.82 ft at 2:45AM Dec 18, 2017Observed: 2.82 ft at 3:00AM Dec 18, 2017Observed: 2.82 ft at 3:15AM Dec 18, 2017Observed: 2.82 ft at 3:30AM Dec 18, 2017Observed: 2.81 ft at 3:45AM Dec 18, 2017Observed: 2.81 ft at 4:00AM Dec 18, 2017Observed: 2.81 ft at 4:15AM Dec 18, 2017Observed: 2.81 ft at 4:30AM Dec 18, 2017Observed: 2.81 ft at 4:45AM Dec 18, 2017Observed: 2.8 ft at 5:00AM Dec 18, 2017Observed: 2.8 ft at 5:15AM Dec 18, 2017Observed: 2.8 ft at 5:30AM Dec 18, 2017Observed: 2.8 ft at 5:45AM Dec 18, 2017Observed: 2.8 ft at 6:00AM Dec 18, 2017Observed: 2.8 ft at 6:15AM Dec 18, 2017Forecast: 2.9 ft 1:00PM Dec 18, 2017Highest Forecast: 3 ft 7:00PM Dec 18, 2017Forecast: 2.9 ft 1:00AM Dec 19, 2017Forecast: 2.9 ft 7:00AM Dec 19, 2017Forecast: 2.9 ft 1:00PM Dec 19, 2017Forecast: 2.9 ft 7:00PM Dec 19, 2017Forecast: 2.8 ft 1:00AM Dec 20, 2017Forecast: 2.8 ft 7:00AM Dec 20, 2017USGS--Water Resources of the United StatesTACN4(plotting HGIRG) Graph Created (7:48AM Dec 18, 2017)ObservedForecast (issued 11:55AM Dec 17)Latest observed value: 2.8 ft at 6:15 AM EST 18-Dec-2017. Flood Stage is 8.5 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts for the Assunpink Creek at Trenton are issued routinely year-round.
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Upstream Gauge - at Clarksville Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 11
Moderate Flood Stage: 9.5
Flood Stage: 8.5
Action Stage: 7
Low Stage (in feet): 0

Historic Crests
(1) 15.12 ft on 08/28/2011
(2) 14.61 ft on 07/21/1975
(3) 14.01 ft on 09/16/1999
(4) 13.46 ft on 08/28/1971
(5) 13.28 ft on 04/16/2007
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.62 ft on 05/01/2014
(2) 8.49 ft on 04/30/2014
(3) 9.28 ft on 09/08/2011
(4) 15.12 ft on 08/28/2011
(5) 9.65 ft on 04/17/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.25 ft on 08/21/1931
(2) 0.25 ft on 10/21/1931
(3) 2.10 ft on 07/05/1963
(4) 2.37 ft on 07/18/1971
(5) 2.39 ft on 08/24/1976
Show More Low Water Records
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
15 The Trenton Transit Center is flooded.
13 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 North Olden Avenue begins to flood.
10 Mulberry Street flooding increases. Evacuations possible.
9 Mulberry Street begins to flood.
6.5 Assunpink Park floods. George Page Park floods. Minor street flooding in Trenton.
About This Location Collapse

Latitude: 40.224167° N, Longitude: 74.749167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 8.5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 24.76 ft 33.26 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
3 Day (SREF) 7 Day (NAEFS) 7 Day (GEFS)
SREF Ensemble NAEFS Ensemble  GEFS Ensemble 

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics. 

Click individual graphics to enlarge.

During winter months, cold and ice may result in inaccurate real-time stream stage and streamflow data. Adjustments or deletions of this data can only be done after detailed analysis.
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Philadelphia/Mount Holly Weather Forecast Office
732 Woodlane Road
Mount Holly, NJ 08060-9615
(609) 261-6600
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Page last modified: 21-Dec-2016 5:21 PM
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