Rivers in New Jersey

Passaic River near Millington

Somerset County, New JerseyNWS MILN4USGS 01379000Mount Holly office

Below flood stage
4.91ftStage

Observed Tue, Sep 22, 4:30 AM EDT

Flood stage
8.00 ft
Forecast crest
5.00 ftTue, Sep 22, 8:00 AM EDT
Record crest
10.26 ft2011

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood9.80 ft
Moderate flood9.00 ft
Minor flood8.00 ft
Action7.00 ft
  1. 12.00 ftThe Somerset County Environmental Education Center in Benards Township is surrounded by water.
  2. 11.00 ftWhitebridge Road in Millington begins to flood.
  3. 9.80 ftSignificant residential and commercial flooding in Long Hill Township.
  4. 9.00 ftFlooding along Lord Sterling Road in Millington increases. Old Forge Road in Millington begins to flood. Residential evacuations possible in Long Hill Township.
  5. 8.50 ftCommercial properties along Valley Road in Long Hill Township begin to flood.
  6. 8.00 ftBungalow Terrace in Millington begins to flood. Lord Sterling Road in Millington begins to flood. Parking lots along Valley Road in Long Hill Township begin to flood.
  7. 7.50 ftFlooding along Morristown Road in the Gillette section on Long Hill Township. Flooding along Warren Avenue in the Stirling Section of Long Hill Township. Both due to backwater.
  8. 7.00 ftBackyards floods along Madison Street in Long Hill Township due to backwater.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor flooding16%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.

Crest history

30 crests on NOAA’s list since 1924.

#DateStage
1August 29, 201110.26 ft
2October 20, 19969.89 ft
3August 29, 19719.73 ft
4March 15, 20109.38 ft
5April 17, 20079.35 ft
6March 12, 19369.18 ft
7September 17, 19998.91 ft
8April 5, 19848.87 ft
9September 2, 20218.86 ft
10September 27, 19758.81 ft
11January 25, 19798.73 ft
12December 31, 19488.71 ft
13August 14, 19428.57 ft
14September 14, 19718.39 ft
15January 10, 20248.30 ft
16December 14, 19838.23 ft
17December 20, 20238.23 ft
18February 26, 19798.19 ft
19November 9, 19728.14 ft
20September 22, 19388.11 ft
21May 29, 19688.04 ft
22April 18, 19868.04 ft
23September 9, 20118.04 ft
24June 23, 19728.02 ft
25April 7, 19248.00 ft

Most recent crests

  • January 10, 2024: 8.30 ft
  • December 20, 2023: 8.23 ft
  • September 2, 2021: 8.86 ft
  • September 9, 2011: 8.04 ft
  • August 29, 2011: 10.26 ft
  • March 11, 2011: 7.91 ft
  • March 31, 2010: 7.95 ft
  • March 15, 2010: 9.38 ft
  • April 17, 2007: 9.35 ft
  • September 17, 1999: 8.91 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Middle Atlantic River Forecast Center. Forecasts are issued routinely year-round.

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.