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Manasquan River at Squankum

Highest listed crest 13.06 ftFlood stage 8.5 ft16 crests since 1938

The Manasquan River at Squankum crested at major flood stage 2 times among the 16 crests the National Weather Service lists from 1938 to 2024. The highest, 13.06 ft on August 28, 2011, was major flooding, 4.56 feet above flood stage. 1 other gauge on the Manasquan River crested above flood stage within a week of it, 1 at its own highest listed crest.

The gauge

Highest listed crest
13.06 ft
August 28, 2011
Flood stage
8.5 ft
Major flooding from 11.0 ft
Crests at major
2
49th of 125 gauges in New Jersey
Most recent flood crest
January 10, 2024
8.77 ft, minor flooding
Location
Monmouth County
Near Point Pleasant (7.3 mi), Tinton Falls (7.9 mi), Asbury Park (8.7 mi)

Flood stages

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

Flood categories, Manasquan River at Squankum
Action stage7.05Mar 30, 2014The level at which the NWS or its partners begin to take action
Flood stage (minor)8.56Jan 10, 2024Minimal or no property damage, but possibly some public threat
Moderate flood stage10.03Nov 8, 1977Some inundation of structures and roads near the stream
Major flood stage11.02Aug 28, 2011Extensive inundation of structures and roads

Every listed crest

16 crests from 1938 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Manasquan River at Squankum, 1938 to 2024 68101214ft Flood stage 8.5 ftMajor 11.0 ft Sep 21, 1938: 12.45 ft, major flooding; 2,940 cubic feet per secondOct 27, 1943: 10.15 ft, moderate flooding; 2,360 cubic feet per secondSep 13, 1960: 10.13 ft, moderate flooding; 2,040 cubic feet per secondNov 8, 1977: 10.37 ft, moderate flooding; 2,040 cubic feet per secondMar 29, 1984: 9.28 ft, minor flooding; 1,630 cubic feet per secondJan 4, 1999: 7.38 ft, action stage; 1,060 cubic feet per secondSep 17, 1999: 7.05 ft, action stage; 955 cubic feet per secondMar 30, 2001: 8.27 ft, action stage; 1,320 cubic feet per secondSep 29, 2004: 7.77 ft, action stage; 1,170 cubic feet per secondOct 14, 2005: 9.58 ft, minor flooding; 1,740 cubic feet per secondAug 28, 2011: 13.06 ft, major floodingMar 30, 2014: 7.70 ft, action stageMay 28, 2018: 9.62 ft, minor floodingNov 25, 2018: 9.59 ft, minor floodingDec 18, 2023: 9.51 ft, minor floodingJan 10, 2024: 8.77 ft, minor flooding Highest, 13.06 ft, Aug 28, 2011 19401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Manasquan River at Squankum 1930s: 1 1940s: 1 1950s: 0 1960s: 1 1970s: 1 1980s: 1 1990s: 0 2000s: 1 2010s: 3 3 2020s: 2 1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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, Manasquan River at Squankum
1Aug 28, 201113.06+4.56Major—
2Sep 21, 193812.45+3.95Major2,940
3Nov 8, 197710.37+1.87Moderate2,040
4Oct 27, 194310.15+1.65Moderate2,360
5Sep 13, 196010.13+1.63Moderate2,040
6May 28, 20189.62+1.12Minor—
7Nov 25, 20189.59+1.09Minor—
8Oct 14, 20059.58+1.08Minor1,740
9Dec 18, 20239.51+1.01Minor—
10Mar 29, 19849.28+0.78Minor1,630
11Jan 10, 20248.77+0.27Minor—
12Mar 30, 20018.27−0.23Action1,320
13Sep 29, 20047.77−0.73Action1,170
14Mar 30, 20147.70−0.80Action—
15Jan 4, 19997.38−1.12Action1,060
16Sep 17, 19997.05−1.45Action955

The worst floods along the Manasquan River

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

August 28, 2011: 13.06 ft here, major flooding

  • AllenwoodNJ · Aug 28, 2011 · 20.38 ft · Major · its highest

Gauges on the Manasquan River

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

Flood gauges on the Manasquan River
Squankum this gaugeNJ8.513.06 ft, Aug 28, 20112
AllenwoodNJ14.520.38 ft, Aug 28, 20111

Other gauges in Monmouth County

Flood gauges in Monmouth County
Allenwood14.520.38 ft, Aug 28, 20111
New Jersey Atlantic Coast at Sandy Hook (IN MLLW)6.714.40 ft, Oct 29, 201214
Raritan Bay at Keansburg (IN MLLW)7.016.73 ft, Oct 29, 20126
Belmar (IN MLLW)5.913.22 ft, Oct 29, 20125
Neptune City7.07.94 ft, Dec 26, 19690
Sea Bright (IN MLLW)5.211.73 ft, Oct 29, 201210
Red Bank7.07.73 ft, May 1, 20140
Manasquan (IN MLLW)5.712.28 ft, Oct 29, 20124

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

NOAA National Water Prediction Service, gauge SAMN4, 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.