Green Brook at Rock Avenue at Plainfield NJ water level

Name: Green Brook at Rock Avenue at Plainfield NJ water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Green Brook, New Jersey, United States

Directions

Latest reading

Water level

1.03ft Steady over the last 24 hours

Measured Oct 21, 2026, 05:30 AM EDT (23 min ago)

History

7 days

Water level

What this means

Green Brook at Rock Avenue at Plainfield NJ reads 1.03 ft as of Oct 21, 2026, 05:30 AM EDT. There is no published reference for this river yet, so we can't say whether that is high or low for the season.

It has barely moved over the past 24 hours. In the last month it has stayed between 0.98 ft and 1.19 ft.

Over the past seven days the change adds up to −0.10 ft.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

Key numbers

Highest on record: 13.60 ftAugust 2, 1973

Floating and fishing near Green Brook at Rock Avenue at Plainfield NJ

Use the recent trend as your guide, and ask locally which gage height makes for a good float.

Highest crests on record

Rank	Level	Date
1	13.60 ft	August 2, 1973
2	12.24 ft	September 2, 2021
3	12.17 ft	September 16, 1999
4	11.40 ft	October 19, 1996
5	10.92 ft	March 14, 2010
6	10.76 ft	August 28, 2011
7	10.18 ft	April 15, 2007
8	9.94 ft	December 18, 2023
9	9.92 ft	May 1, 2014
10	9.66 ft	October 19, 1975

Weather at the gauge

No rain in the last 3 days.

21 Wed 64° 47° – Wind 13 mph

22 Thu 67° 42° – Wind 11 mph

23 Fri 61° 48° – Wind 10 mph

24 Sat 62° 46° – Wind 5 mph

25 Sun 64° 46° – Wind 7 mph

26 Mon 68° 47° – Wind 7 mph

27 Tue 71° 54° – Wind 8 mph

Forecast: Open-Meteo

Sunrise 07:16 AM Sunset 06:10 PM Daylight 10 hr, 54 min Waxing gibbous 76%

Map

Other gauges on Green Brook

Gauge	Level	Compared with normal	24 hours	Distance
Green Brook at Seeley Mills NJRiver gauge, Green Brook	1.80 ft	Below flood stage	−0.01 ft	5.2 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Stony Brook at North Plainfield NJRiver gauge, Stony Brook	1.86 ft	Below flood stage	−0.02 ft	1.8 mi
Stony Brook at Watchung NJRiver gauge, Stony Brook	9.56 ft	Below flood stage	−0.02 ft	2.4 mi
Bound Brook at Middlesex NJRiver gauge, Bound Brook	1.67 ft	Below flood stage	−0.02 ft	2.9 mi
Middle Brook at Bound Brook NJRiver gauge, Middle Brook	4.07 ft	Below flood stage	−0.05 ft	5.6 mi
Raritan River below Calco Dam at Bound Brook NJRiver gauge, Raritan River	17.05 ft	Below flood stage	−0.20 ft	5.9 mi
Passaic River near Millington NJRiver gauge, Passaic River	4.90 ft	Below flood stage	−0.08 ft	7 mi
West Branch Middle Brook near Martinsville NJRiver gauge, West Branch Middle Brook	2.02 ft	Below flood stage	±0	7 mi
Raritan River at Manville NJRiver gauge, Raritan River	4.23 ft	Below flood stage	−0.04 ft	7 mi

Questions and answers

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Green Brook at Rock Avenue at Plainfield NJ today?

On Oct 21, 2026, 05:30 AM EDT, the water level was 1.03 ft. Steady over the last 24 hours.

Is Green Brook at Rock Avenue at Plainfield NJ rising or falling?

Steady over the last 24 hours. Down 0.10 ft over the last 7 days.

Is the level of Green Brook at Rock Avenue at Plainfield NJ normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

What is the highest water level ever recorded at Green Brook at Rock Avenue at Plainfield NJ?

The highest level on record is 13.60 ft on August 2, 1973.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01403600 (Agency page)
Coordinates: 40.60194, -74.45750 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	1.03 ft	2026-10-21 09:30	Provisional

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How to cite

U.S. Geological Survey: Green Brook at Rock Avenue at Plainfield NJ (usgs:01403600). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-jersey/green-brook-at-rock-avenue-at-plainfield-nj

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer