Green Brook at Rock Avenue at Plainfield NJ

Somerset County, New Jersey · USGS gauge 01403600 · NWS GRBN4 · New Jersey river levels

Nearby: river levels near Rahway · river levels near Manville

Is Green Brook at Rock Avenue at Plainfield NJ flooding right now?

Green Brook at Rock Avenue at Plainfield NJ measured 0.96 ft on 2026-09-11 01:30:00 UTC. No NWS minor flood stage is published for this gauge. Its action level is 7 ft; action level is not flood stage.

Gauge height
0.96 ft
as of 41 min ago
Streamflow
data refreshed 9 min ago

The highest crest on record was 13.6 ft on Thu, Aug 2, 1973.

Flood stages at this gauge

CategoryStageCurrent distance
Action7 ft6.0 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
13.6 ft1973-08-02
12.24 ft2021-09-02
12.17 ft1999-09-16
11.4 ft1996-10-19
10.92 ft2010-03-14

Nearby gauges

GaugeDistanceCounty
Green Brook at Plainfield NJ1.6 miSomerset County
Stony Brook at North Plainfield NJ1.8 miSomerset County
Stony Brook at Watchung NJ2.4 miSomerset County
East Br Stony Brook at Best Lake at Watchung NJ2.7 miSomerset County
Bound Brook at Middlesex NJ2.9 miSomerset County
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast