Rivers in New Jersey

Green Brook at Plainfield

Somerset County, New JerseyNWS GRBN4USGS 01403600Mount Holly office

Below flood stage
0.97ftStage

Observed Mon, Sep 21, 5:30 PM EDT

Record crest
13.60 ft1973

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Action7.00 ft

Crest history

14 crests on NOAA’s list since 1973.

#DateStage
1August 2, 197313.60 ft
2September 2, 202112.24 ft
3September 16, 199912.17 ft
4October 19, 199611.40 ft
5March 14, 201010.92 ft
6August 28, 201110.76 ft
7April 15, 200710.18 ft
8December 18, 20239.94 ft
9May 1, 20149.92 ft
10October 19, 19759.66 ft
11January 10, 20249.43 ft
12December 28, 20238.90 ft
13March 6, 20268.74 ft
14December 1, 20208.52 ft

Most recent crests

  • March 6, 2026: 8.74 ft
  • January 10, 2024: 9.43 ft
  • December 28, 2023: 8.90 ft
  • December 18, 2023: 9.94 ft
  • September 2, 2021: 12.24 ft
  • December 1, 2020: 8.52 ft
  • May 1, 2014: 9.92 ft
  • August 28, 2011: 10.76 ft
  • March 14, 2010: 10.92 ft
  • April 15, 2007: 10.18 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Middle Atlantic River Forecast Center. Forecasts are not available. Only observed stages are available for this point.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.