Summary
Total streamflow across the
Raritan River
was last observed at
941
cfs, and is expected to yield approximately
1,866
acre-ft of water today; about 26%
of normal.
River levels are low and may signify a drought.
Average streamflow for this time of year is
3,600 cfs,
with recent peaks last observed
on
2021-09-02 when daily discharge volume was observed at
108,800 cfs.
Maximum discharge along the river is currently at the
Raritan River Below Calco Dam At Bound Brook Nj
reporting a streamflow rate of 558 cfs.
This is also the highest stage along the Raritan River, with a gauge stage of
17.52 ft at this location.
This river is monitored from 2 different streamgauging stations along the Raritan River, the highest being situated at an altitude of 43 ft, the
Raritan River At Manville Nj.
River Details
| Last Updated | 2025-12-24 |
| Discharge Volume | 1,866 ACRE-FT |
| Streamflow |
941.0 cfs
-132.0 cfs (-12.3%) |
| Percent of Normal | 26.14% |
| Maximum |
108,800.0 cfs
2021-09-02 |
| Seasonal Avg | 3,600 cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Raritan River At Manville Nj
USGS 01400500 |
383 cfs | 4.38 ft | -8.81 | |||||
|
Raritan River Below Calco Dam At Bound Brook Nj
USGS 01403060 |
558 cfs | 17.52 ft | -14.55 |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
The Raritan River is a major river of central New Jersey in the United States. Its watershed drains much of the mountainous area of the central part of the state, emptying into the Raritan Bay on the Atlantic Ocean.