Rivers in New Jersey

Raritan River at Bound Brook

Somerset County, New JerseyNWS BDKN4USGS 01403060Mount Holly office

Below flood stage
17.61ftStage

Observed Tue, Sep 22, 3:15 AM EDT

Flood stage
28.00 ft
Forecast crest
16.90 ftTue, Sep 22, 8:00 AM EDT
Record crest
42.13 ft2021

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood33.00 ft
Moderate flood30.00 ft
Minor flood28.00 ft
Action26.00 ft
  1. 33.00 ftA large portion of Bound Brook is protected by the flood reduction project. Pump station operations become critical, at this stage, for the continued protection of the borough.
  2. 30.00 ftMain Street is protected by flap valves/sluice gates. This level triggers the gate closures to protect Main Street.
  3. 28.00 ftBackyard and low areas are protected by levees and the flood wall. Without the levees or if there is a breach in the levees, minor flooding will occur.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor flooding20%
Moderate flooding8%
Major floodingUnder 5%

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

Crest history

43 crests on NOAA’s list since 1970.

#DateStage
1September 2, 202142.13 ft
2September 17, 199942.13 ft
3August 28, 201141.90 ft
4April 16, 200738.38 ft
5August 28, 197137.47 ft
6March 14, 201036.04 ft
7October 20, 199635.58 ft
8May 1, 201434.65 ft
9December 19, 202333.72 ft
10January 10, 202433.70 ft
11January 20, 199633.34 ft
12January 25, 197933.18 ft
13September 9, 201133.14 ft
14July 7, 198432.00 ft
15April 16, 198331.84 ft
16December 21, 197331.73 ft
17January 26, 197831.33 ft
18April 17, 201131.10 ft
19April 3, 197031.02 ft
20April 5, 198430.94 ft
21April 3, 200530.54 ft
22August 24, 202130.53 ft
23February 1, 197330.47 ft
24July 14, 197530.27 ft
25September 21, 198930.22 ft

Most recent crests

  • January 10, 2024: 33.70 ft
  • December 28, 2023: 29.62 ft
  • December 19, 2023: 33.72 ft
  • April 8, 2022: 29.89 ft
  • September 2, 2021: 42.13 ft
  • August 24, 2021: 30.53 ft
  • December 25, 2020: 28.01 ft
  • November 25, 2018: 29.65 ft
  • May 1, 2014: 34.65 ft
  • September 9, 2011: 33.14 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.