Rivers in New Jersey
North Branch Raritan River near Raritan
Below flood stage
2.81ftStage
Observed Wed, Sep 23, 6:00 AM EDT
- Flood stage
- 10.00 ft
- Forecast crest
- 2.70 ftWed, Sep 23, 8:00 AM EDT
- Record crest
- 19.52 ft2021
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 15.00 ft |
| Moderate flood | 12.00 ft |
| Minor flood | 10.00 ft |
| Action | 8.00 ft |
- 20.00 ftUS Route 202 is closed. Flooding extends west of Vanderveer Avenue to Burnt Mill Road.
- 19.00 ftThe bridge on Old York Road between Branchburg and Bridgewater is closed due to flooding.
- 18.00 ftHelfreds Landing in Bridgewater floods.
- 15.00 ftUS Route 202 in Branchburg begins to flood, starting with the northbound lanes. Chambers Brook experiences back water causing flooding to occur along Chambers Brook Road.
- 14.00 ftThe first evacuations begin in Branchburg near Route 28 and Vaanderveer Avenue.
- 12.00 ftVaanderveer Avenue in Branchburg begins to flood.
- 10.00 ftFlooding begins along Old York Road and in Branchburg.
- 8.00 ftNorth Branch Park floods.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 15% |
| Moderate flooding | 7% |
| Major flooding | Under 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 1936.
| # | Date | Stage |
|---|---|---|
| 1 | September 2, 2021 | 19.52 ft |
| 2 | September 16, 1999 | 18.98 ft |
| 3 | August 28, 2011 | 17.97 ft |
| 4 | August 28, 1971 | 15.47 ft |
| 5 | October 19, 1996 | 15.44 ft |
| 6 | July 7, 1984 | 15.30 ft |
| 7 | January 19, 1996 | 14.30 ft |
| 8 | January 10, 2024 | 14.10 ft |
| 9 | March 14, 2010 | 13.90 ft |
| 10 | August 19, 1955 | 13.59 ft |
| 11 | December 18, 2023 | 13.54 ft |
| 12 | May 1, 2014 | 13.29 ft |
| 13 | April 16, 2007 | 13.20 ft |
| 14 | August 13, 1955 | 12.70 ft |
| 15 | September 8, 2011 | 12.70 ft |
| 16 | October 15, 1955 | 12.68 ft |
| 17 | September 21, 1938 | 12.16 ft |
| 18 | July 23, 2004 | 11.95 ft |
| 19 | August 23, 2021 | 11.88 ft |
| 20 | January 25, 1979 | 11.87 ft |
| 21 | August 9, 1942 | 11.78 ft |
| 22 | December 28, 2023 | 11.78 ft |
| 23 | February 3, 1982 | 11.68 ft |
| 24 | April 16, 1983 | 11.59 ft |
| 25 | January 3, 1936 | 11.35 ft |
Most recent crests
- January 10, 2024: 14.10 ft
- December 28, 2023: 11.78 ft
- December 18, 2023: 13.54 ft
- July 10, 2023: 10.64 ft
- April 8, 2022: 10.13 ft
- September 2, 2021: 19.52 ft
- August 23, 2021: 11.88 ft
- November 25, 2018: 10.51 ft
- May 1, 2014: 13.29 ft
- September 8, 2011: 12.70 ft
Nearby
Upstream, downstream and the gauges around this one.
- UpstreamNorth Branch Raritan River at North Branch Village
- DownstreamNorth Branch Raritan River at South Branch
- South Branch Raritan River at South Branch
- Peters Brook at Somerville
- Lamington (Black) River at Burnt Mills
- Raritan River at Manville
- Royce Brook at Hamilton Road
- West Branch Middle Brook at Martinsville
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 North Branch Raritan River near Raritan
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.