River Levels Streamgages Weather

Total streamflow across the Hackensack River was last observed at 94 cfs, and is expected to yield approximately 186 acre-ft of water today; about 87% of normal. Average streamflow for this time of year is 107 cfs, with recent peaks last observed on 2011-08-29 when daily discharge volume was observed at 14,660 cfs.

Maximum discharge along the river is currently at the Hackensack River At Rivervale Nj reporting a streamflow rate of 73.7 cfs. However, the streamgauge with the highest stage along the river is the Hackensack River At West Nyack Ny with a gauge stage of 2.59 ft. This river is monitored from 3 different streamgauging stations along the Hackensack River, the highest being situated at an altitude of 57 ft, the Hackensack River At West Nyack Ny.

The Hackensack River is a 45-mile long waterway that flows through northeastern New Jersey into Newark Bay, separating Bergen and Hudson counties. It was once a major transportation route for Native American tribes, Dutch traders, and American Revolutionary soldiers. The river's hydrology has been significantly altered over time, with wetlands drained and channels dredged for navigation and industry. Today, there are several reservoirs and dams along the river, including the Oradell Reservoir and the Woodcliff Lake Dam, which provide drinking water to millions of people in northern New Jersey. The river is also used for recreational activities such as fishing, boating, and hiking. However, it continues to face pollution challenges from urban runoff and industrial waste, and efforts are underway to improve water quality and restore habitat for wildlife.

July 19, 2024







Last Updated 2024-07-18
Discharge Volume 186 ACRE-FT
Streamflow 93.6 cfs
+53.55 cfs (+133.71%)
Percent of Normal 87.43%
Maximum 14,660.0 cfs
Seasonal Avg 107 cfs
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Hackensack River At West Nyack Ny
USGS 01376800
20 cfs 2.59 ft 115.14
Hackensack River At Rivervale Nj
USGS 01377000
74 cfs 1.93 ft 139.29
Hackensack River At New Milford Nj
USGS 01378500
15 cfs 1.55 ft 115.94

Regional Streamflow


Cubic Feet Per Second


Cubic Feet Per Second


Cubic Feet Per Second


Cubic Feet Per Second

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Historical River Levels

The Hackensack River is a river, approximately 45 miles (72 km) long, in the U.S. states of New York and New Jersey, emptying into Newark Bay, a back chamber of New York Harbor. The watershed of the river includes part of the suburban area outside New York City just west of the lower Hudson River, which it roughly parallels, separated from it by the New Jersey Palisades. It also flows through and drains the New Jersey Meadowlands. The lower river, which is navigable as far as the city of Hackensack, is heavily industrialized and forms a commercial extension of Newark Bay. Once believed to be among the most polluted water courses in the United States, it staged a modest revival by the late 2000s.

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