Rockaway River at Boonton below reservoir, NJ
River level and flood forecast · Morris County
The river is 1.8 ft below flood stage (5 ft).
Forecast to fall to 2.5 ft by Thu, Oct 15, 2 PM.
Flow: 364 cubic feet per second (USGS).
Much higher than normal for October 13.
Usual for October 13: 1 to 27 cubic feet per second (the middle half of 120 years).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 3:02 PM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Rockaway River at Boonton below reservoir to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 8 ft |
| Moderate flood stage | 7 ft |
| Flood stage | 5 ft |
| Action stage | 4.5 ft |
| Record crest (August 29, 2011) | 9.73 ft |
What floods at each level
From the National Weather Service, highest first.
- 8 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.
- 7.7 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 ftFlooding occurs on Vail Road in Montville. The Road heading into Parsippany is subject to closures.
Highest crests on record
- 9.73 ft — August 29, 2011
- 8.3 ft — January 25, 1979
- 8.2 ft — May 29, 1968
- 8.17 ft — April 6, 1984
- 8.12 ft — March 14, 2010
Recent crests: 5.03 ft (June 1, 2025) · 7.82 ft (January 10, 2024) · 6.03 ft (December 29, 2023) · 7.84 ft (December 19, 2023) · 5.86 ft (June 27, 2023)
Highest flow on record
7,560 cubic feet per second — October 10, 1903. From the USGS's yearly peaks since 1903.
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (BONN4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.