Rivers in New Jersey

South Branch Raritan River at Stanton

Hunterdon County, New JerseyNWS STTN4USGS 01397000Mount Holly office

Below flood stage
2.54ftStage

Observed Wed, Sep 23, 6:00 AM EDT

Flood stage
8.00 ft
Forecast crest
2.60 ftFri, Sep 25, 8:00 AM EDT
Record crest
15.22 ft1955

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood12.00 ft
Moderate flood10.00 ft
Minor flood8.00 ft
Action7.00 ft
  1. 13.50 ftBridge is completely submerged under water.
  2. 10.00 ftHouses downstream begin to take on water.
  3. 8.00 ftRight bank and approach to bridge is flooded.
  4. 5.00 ftMinor low land flooding downstream of gauge.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor flooding13%
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

49 crests on NOAA’s list since 1903.

#DateStage
1August 19, 195515.22 ft
2September 2, 202115.16 ft
3September 16, 199913.90 ft
4August 28, 201113.61 ft
5January 25, 197912.72 ft
6October 14, 195512.55 ft
7January 7, 190512.51 ft
8April 16, 200712.27 ft
9January 10, 202412.24 ft
10July 19, 194512.22 ft
11March 15, 194012.19 ft
12July 7, 198412.04 ft
13November 7, 195112.01 ft
14September 8, 201111.98 ft
15April 2, 197011.96 ft
16December 18, 202311.19 ft
17July 9, 193510.80 ft
18September 21, 193810.72 ft
19March 14, 201010.57 ft
20October 9, 190310.50 ft
21August 13, 195510.29 ft
22June 22, 197210.25 ft
23April 2, 200510.10 ft
24February 3, 198210.02 ft
25October 19, 19969.91 ft

Most recent crests

  • January 10, 2024: 12.24 ft
  • December 28, 2023: 9.82 ft
  • December 18, 2023: 11.19 ft
  • July 10, 2023: 8.86 ft
  • April 8, 2022: 9.09 ft
  • September 2, 2021: 15.16 ft
  • August 23, 2021: 8.55 ft
  • December 25, 2020: 8.26 ft
  • December 1, 2020: 8.92 ft
  • August 4, 2020: 8.45 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. NEW! Click <a href='https://experience.arcgis.com/experience/942c8d33434e49228a47c7c9335aff75'>Here</a> for Partner Flood Inundation Maps for the South Branch Raritan River at Stanton

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.