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Whippany River at Pine Brook

Highest listed crest 12.54 ftFlood stage 9.0 ft9 crests since 1996

The Whippany River at Pine Brook crested above flood stage 6 times among the 9 crests the National Weather Service lists from 1996 to 2023. The highest, 12.54 ft on August 30, 2011, was minor flooding, 3.54 feet above flood stage. 1 other gauge on the Whippany River crested above flood stage within a week of it, 1 at its own highest listed crest.

The gauge

Highest listed crest
12.54 ft
August 30, 2011
Flood stage
9.0 ft
No major stage set
Crests at major
0
6 above flood stage
Most recent flood crest
December 20, 2023
9.38 ft, minor flooding
Location
Morris County
Near Florham Park (5.4 mi), Lincoln Park (5.9 mi), Madison (7.0 mi)

Flood stages

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

Flood categories, Whippany River at Pine Brook
Action stage8.03Oct 15, 2005The level at which the NWS or its partners begin to take action
Flood stage (minor)9.06Dec 20, 2023Minimal or no property damage, but possibly some public threat

Every listed crest

9 crests from 1996 to 2023. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Whippany River at Pine Brook, 1996 to 2023 8910111213ft Flood stage 9.0 ft Jan 29, 1996: 8.38 ft, action stageOct 20, 1996: 9.22 ft, minor flooding; 2,080 cubic feet per secondSep 18, 1999: 9.12 ft, minor floodingApr 5, 2005: 8.38 ft, action stage; 1,050 cubic feet per secondOct 15, 2005: 8.67 ft, action stageApr 17, 2007: 10.09 ft, minor flooding; 2,850 cubic feet per secondAug 30, 2011: 12.54 ft, minor floodingSep 3, 2021: 9.70 ft, minor flooding; 1,516 cubic feet per secondDec 20, 2023: 9.38 ft, minor flooding; 1,422 cubic feet per second Highest, 12.54 ft, Aug 30, 2011 20002005201020152020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Whippany River at Pine Brook 1990s: 2 2 2000s: 1 2010s: 1 2020s: 2 1990s2000s2010s2020s
  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, Whippany River at Pine Brook
1Aug 30, 201112.54+3.54Minor—
2Apr 17, 200710.09+1.09Minor2,850
3Sep 3, 20219.70+0.70Minor1,516
4Dec 20, 20239.38+0.38Minor1,422
5Oct 20, 19969.22+0.22Minor2,080
6Sep 18, 19999.12+0.12Minor—
7Oct 15, 20058.67−0.33Action—
8Jan 29, 19968.38−0.62Action—
9Apr 5, 20058.38−0.62Action1,050

The worst floods along the Whippany River

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

August 30, 2011: 12.54 ft here, minor flooding

  • MorristownNJ · Aug 28, 2011 · 9.60 ft · Major · its highest

April 17, 2007: 10.09 ft here, minor flooding

September 3, 2021: 9.70 ft here, minor flooding

  • MorristownNJ · Sep 2, 2021 · 7.31 ft · Moderate

Gauges on the Whippany River

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

Flood gauges on the Whippany River
MorristownNJ6.09.60 ft, Aug 28, 20114
Pine Brook this gaugeNJ9.012.54 ft, Aug 30, 20110

Other gauges in Morris County

Flood gauges in Morris County
Picatinny3.03.84 ft, Aug 28, 20110
Pottersville4.55.94 ft, Jul 7, 19840
Chatham6.09.36 ft, Aug 2, 19730
Pine Brook19.024.12 ft, Aug 30, 201113
Boonton above reservoir4.54.71 ft, Dec 18, 20230
Boonton below reservoir5.09.73 ft, Aug 29, 20117
Morristown6.09.60 ft, Aug 28, 20114
at Midwood7.515.20 ft, Apr 16, 20071
at Ryerson12.017.00 ft, Apr 16, 20071

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

NOAA National Water Prediction Service, gauge PNBN4, 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.