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Delaware River at Trenton, NJ (TREN4)


Data Type




Inundation Levels
NAVD88 Stage

33.5* 34.6*
32.9* 34.0*
31.6* 32.7*
30.2* 31.3*
Record Crest: 30.6 ft
29.0 30.1
27.8 28.9
26.6 27.7
25.4 26.5
24.2 25.3

Major Flooding Begins

23.5 24.6
23.0 24.1
22.3 23.4

Moderate Flooding Begins

21.5 22.6
21.1 22.2
20.4 21.5
19.7 20.8
18.9 20.0

Minor Flooding Begins

17.5 18.6
16.2 17.3

Near Flooding Begins

14.9 16.0
13.7 14.8
* = Extended rating
Weather Forecast Office Philadelphia/Mount Holly, NJ Middle Atlantic River Forecast Center

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Current Stage:
8.8 ft at 07/31/2014 04:15:00 UTC
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Inundation Legend Inundation Legend
USGS Gauge Location Gauge Location

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.

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Map Overlays

Flood Categories (in feet)
Major Flood Stage:25
Moderate Flood Stage:23
Flood Stage:20
Action Stage:17

Historical Crests
(1) 30.60 ft on 03/08/1904
(2) 28.60 ft on 08/20/1955
(3) 28.50 ft on 10/11/1903
(4) 25.33 ft on 04/04/2005
(5) 25.09 ft on 06/29/2006
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(P): Preliminary values subject to further review.

Low Water Records

Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.

Site-specific information:
These maps represent unobstructed flow conditions and may be unrepresentative when ice jams and/or debris are in place.

Extended rating:
Rating Curve Extension - The Rating Curve Extension is calculated by using either a linear, logarithmic, or hydraulic technique to extend the rating curve above the currently established relationship between stage and flow.

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If you notice any errors in the below information, please contact our Webmaster
25 The Delaware River meets the Delaware Canal, backfilling the Rivermawr and Flats neighborhoods making all roads east of the canal impassable.
24.5 Carr's Lane in Yardley begins to flood.
23 North and South Bell Avenues in Yardley begin to flood.
22 Route 32 in Yardley is flooded in both directions. Up to two feet of water covers portions of Morgan Avenue, Brown Street, Maple avenue, and Fuld Avenue.
21.5 Ferry Street in Yardley begins to flood.
20.5 Route 32 South at East College Avenue in Yardley Borough begins to flood.
20 Houses on Brown Street in Yardley begin to take on water. Houses on Afton Avenue also take on water. Southbound lanes are closed along stretches of Route 29 in Trenton. Route 32 North is closed in Yardley Borough.
19.5 Morgan Avenue in Yardley Borough begins to flood.
18.5 Water begins to enter Level 1 of the parking garage at state capitol building. Sections of Stacey Park in Trenton are closed.
18 Route 32 North is closed between Brown Street and Maple Avenue.
17 PA Route 32 North in Yardley Borough begins to flood between Brown Street and Maple Avenue.
Photos
(1) Ice at the Trenton Gage
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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.
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Page last modified: 16-Jul-2014 2:12 AM
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Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.