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Assunpink Creek at Trenton

Highest listed crest 15.12 ftFlood stage 8.5 ft31 crests since 1971

The Assunpink Creek at Trenton crested at major flood stage 9 times among the 31 crests the National Weather Service lists from 1971 to 2024. The highest, 15.12 ft on August 28, 2011, was major flooding, 6.62 feet above flood stage. 1 other gauge on the Assunpink Creek crested above flood stage within a week of it.

The gauge

Highest listed crest
15.12 ft
August 28, 2011
Flood stage
8.5 ft
Major flooding from 11.0 ft
Crests at major
9
13th of 125 gauges in New Jersey
Most recent flood crest
January 10, 2024
8.74 ft, minor flooding
Location
Mercer County
Near Trenton (0.8 mi), Princeton (10.2 mi), Burlington (11.4 mi)

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Assunpink Creek at Trenton
Action stage7.07Mar 7, 2011The level at which the NWS or its partners begin to take action
Flood stage (minor)8.58Jan 10, 2024Minimal or no property damage, but possibly some public threat
Moderate flood stage9.57Nov 25, 2018Some inundation of structures and roads near the stream
Major flood stage11.09Sep 2, 2021Extensive inundation of structures and roads

Every listed crest

31 crests from 1971 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Assunpink Creek at Trenton, 1971 to 2024 6810121416ft Flood stage 8.5 ftMajor 11.0 ft Aug 28, 1971: 13.46 ft, major flooding; 4,123 cubic feet per secondFeb 2, 1973: 10.37 ft, moderate flooding; 2,690 cubic feet per secondJul 21, 1975: 14.61 ft, major flooding; 5,450 cubic feet per secondJan 28, 1994: 11.67 ft, major flooding; 3,230 cubic feet per secondMar 10, 1994: 10.53 ft, moderate flooding; 2,708 cubic feet per secondAug 22, 1994: 8.48 ft, action stageJan 19, 1996: 10.38 ft, moderate floodingJan 27, 1996: 7.80 ft, action stageJun 13, 1996: 11.69 ft, major flooding; 3,230 cubic feet per secondOct 19, 1996: 10.47 ft, moderate flooding; 2,770 cubic feet per secondDec 14, 1996: 8.40 ft, action stage; 1,950 cubic feet per secondJan 23, 1998: 7.86 ft, action stage; 1,740 cubic feet per secondMar 22, 1999: 7.50 ft, action stageSep 16, 1999: 14.01 ft, major flooding; 4,510 cubic feet per secondJun 4, 2003: 7.17 ft, action stageFeb 6, 2004: 8.75 ft, minor flooding; 1,719 cubic feet per secondApr 2, 2005: 8.62 ft, minor flooding; 1,670 cubic feet per secondApr 16, 2007: 13.28 ft, major flooding; 4,050 cubic feet per secondMar 14, 2010: 9.36 ft, minor floodingMar 30, 2010: 8.99 ft, minor floodingMar 7, 2011: 7.40 ft, action stage; 1,540 cubic feet per secondApr 17, 2011: 9.65 ft, moderate floodingAug 28, 2011: 15.12 ft, major floodingSep 8, 2011: 9.28 ft, minor flooding; 2,410 cubic feet per secondMay 1, 2014: 11.62 ft, major flooding; 3,710 cubic feet per secondMay 27, 2018: 10.16 ft, moderate flooding; 2,892 cubic feet per secondNov 25, 2018: 9.94 ft, moderate flooding; 2,772 cubic feet per secondJul 18, 2021: 8.56 ft, minor flooding; 2,063 cubic feet per secondSep 2, 2021: 12.59 ft, major flooding; 4,263 cubic feet per secondDec 18, 2023: 9.29 ft, minor flooding; 2,428 cubic feet per secondJan 10, 2024: 8.74 ft, minor flooding; 2,151 cubic feet per second Highest, 15.12 ft, Aug 28, 2011 19801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Assunpink Creek at Trenton 1970s: 3 1980s: 0 1990s: 6 2000s: 3 2010s: 8 8 2020s: 4 1970s1980s1990s2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Assunpink Creek at Trenton
1Aug 28, 201115.12+6.62Major—
2Jul 21, 197514.61+6.11Major5,450
3Sep 16, 199914.01+5.51Major4,510
4Aug 28, 197113.46+4.96Major4,123
5Apr 16, 200713.28+4.78Major4,050
6Sep 2, 202112.59+4.09Major4,263
7Jun 13, 199611.69+3.19Major3,230
8Jan 28, 199411.67+3.17Major3,230
9May 1, 201411.62+3.12Major3,710
10Mar 10, 199410.53+2.03Moderate2,708
11Oct 19, 199610.47+1.97Moderate2,770
12Jan 19, 199610.38+1.88Moderate—
13Feb 2, 197310.37+1.87Moderate2,690
14May 27, 201810.16+1.66Moderate2,892
15Nov 25, 20189.94+1.44Moderate2,772
16Apr 17, 20119.65+1.15Moderate—
17Mar 14, 20109.36+0.86Minor—
18Dec 18, 20239.29+0.79Minor2,428
19Sep 8, 20119.28+0.78Minor2,410
20Mar 30, 20108.99+0.49Minor—
21Feb 6, 20048.75+0.25Minor1,719
22Jan 10, 20248.74+0.24Minor2,151
23Apr 2, 20058.62+0.12Minor1,670
24Jul 18, 20218.56+0.06Minor2,063
25Aug 22, 19948.48−0.02Action—
26Dec 14, 19968.40−0.10Action1,950
27Jan 23, 19987.86−0.64Action1,740
28Jan 27, 19967.80−0.70Action—
29Mar 22, 19997.50−1.00Action—
30Mar 7, 20117.40−1.10Action1,540
31Jun 4, 20037.17−1.33Action—

The worst floods along the Assunpink Creek

For this gauge's highest crests, the other gauges on the Assunpink Creek that crested above flood stage within a week.

August 28, 2011: 15.12 ft here, major flooding

July 21, 1975: 14.61 ft here, major flooding

August 28, 1971: 13.46 ft here, major flooding

  • ClarksvilleNJ · Aug 28, 1971 · 10.90 ft · Minor · its highest

Gauges on the Assunpink Creek

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the Assunpink Creek
ClarksvilleNJ8.010.90 ft, Aug 28, 19710
MercervilleNJ9.515.82 ft, Sep 2, 20212
Trenton this gaugeNJ8.515.12 ft, Aug 28, 20119

Other gauges in Mercer County

Flood gauges in Mercer County
Clarksville8.010.90 ft, Aug 28, 19710
Mercerville9.515.82 ft, Sep 2, 20212
Extonville12.017.10 ft, Aug 28, 20110
Trenton20.030.60 ft, Mar 8, 19045
Princeton9.016.23 ft, Aug 28, 20113

Mercer County: every hazard · River floods across the country · New Jersey

NOAA National Water Prediction Service, gauge TACN4, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.