Rivers in New Jersey
Rockaway River at Boonton below reservoir
Below flood stage
1.90ftStage
Observed Wed, Sep 23, 1:00 AM EDT
- Flood stage
- 5.00 ft
- Forecast crest
- 2.00 ftWed, Sep 23, 8:00 AM EDT
- Record crest
- 9.73 ft2011
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 8.00 ft |
| Moderate flood | 7.00 ft |
| Minor flood | 5.00 ft |
| Action | 4.50 ft |
- 8.00 ftDue to high water on the Rockaway River, water backs up through storm drains and flood portions of Lancaster Avenue, Normandy Drive, Buckingham Circle, Sheffield Place, Manchester Drive and Konner Avenue in Montville. High water on the Rockaway also backs up Hatfield Creek in Montville and causes additional flooding on Lancaster Avenue.
- 7.70 ftChange Bridge Road in Montville, north of Woodmont Road and south of Stiles Lane, floods. River Road in Montville floods near Condurso's Garden Center. Both roads are closed.
- 6.00 ftFlooding occurs on Vail Road in Montville. The Road heading into Parsippany is subject to closures.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 60% |
| 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
57 crests on NOAA’s list since 1903.
| # | Date | Stage |
|---|---|---|
| 1 | August 29, 2011 | 9.73 ft |
| 2 | January 25, 1979 | 8.30 ft |
| 3 | May 29, 1968 | 8.20 ft |
| 4 | April 6, 1984 | 8.17 ft |
| 5 | March 14, 2010 | 8.12 ft |
| 6 | April 16, 2007 | 8.09 ft |
| 7 | March 12, 1936 | 8.03 ft |
| 8 | October 20, 1996 | 7.96 ft |
| 9 | March 12, 2011 | 7.95 ft |
| 10 | December 19, 2023 | 7.84 ft |
| 11 | January 10, 2024 | 7.82 ft |
| 12 | October 10, 1903 | 7.80 ft |
| 13 | May 17, 1990 | 7.40 ft |
| 14 | June 1, 1972 | 7.36 ft |
| 15 | January 28, 1996 | 7.27 ft |
| 16 | December 22, 1973 | 7.26 ft |
| 17 | September 9, 2011 | 7.23 ft |
| 18 | February 3, 1973 | 7.22 ft |
| 19 | April 3, 2005 | 7.19 ft |
| 20 | June 2, 1952 | 7.18 ft |
| 21 | April 3, 1970 | 7.16 ft |
| 22 | March 23, 1977 | 7.13 ft |
| 23 | September 2, 2021 | 7.03 ft |
| 24 | March 7, 2011 | 6.92 ft |
| 25 | April 8, 2022 | 6.82 ft |
Most recent crests
- June 1, 2025: 5.03 ft
- January 10, 2024: 7.82 ft
- December 29, 2023: 6.03 ft
- December 19, 2023: 7.84 ft
- June 27, 2023: 5.86 ft
- April 8, 2022: 6.82 ft
- September 2, 2021: 7.03 ft
- August 23, 2021: 6.15 ft
- December 26, 2020: 5.34 ft
- December 1, 2020: 5.00 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.