Summary
Total streamflow across the
Rahway River
was last observed at
44
cfs, and is expected to yield approximately
88
acre-ft of water today; about 61%
of normal.
River levels are low and may signify a drought.
Average streamflow for this time of year is
73 cfs,
with recent peaks last observed
on
2021-09-02 when daily discharge volume was observed at
6,130 cfs.
Maximum discharge along the river is currently at the
Rahway River At Rahway Nj
reporting a streamflow rate of 29.8 cfs.
This is also the highest stage along the Rahway River, with a gauge stage of
1.6 ft at this location.
This river is monitored from 2 different streamgauging stations along the Rahway River, the highest being situated at an altitude of 67 ft, the
Rahway River Near Springfield Nj.
River Details
| Last Updated | 2025-12-04 |
| Discharge Volume | 88 ACRE-FT |
| Streamflow |
44.2 cfs
-178.3 cfs (-80.13%) |
| Percent of Normal | 60.68% |
| Maximum |
6,130.0 cfs
2021-09-02 |
| Seasonal Avg | 73 cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Rahway River Near Springfield Nj
USGS 01394500 |
14 cfs | 1.4 ft | -69.03 | |||||
|
Rahway River At Rahway Nj
USGS 01395000 |
30 cfs | 1.6 ft | -83.07 |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
The Rahway River is a river in Essex, Middlesex and Union Counties, New Jersey in the United States. The Rahway, along with the Elizabeth River, Piles Creek, Passaic River, Morses Creek, the Fresh Kills river (in Staten Island) mouths at the Arthur Kill.
Part of the extended area of New York-New Jersey Harbor Estuary, draining part of the suburban and urbanized area of New Jersey west of Staten Island, New York, the river is approximately 24 miles (39 km) long. The upper reaches are lined with several parks while the mouth serves as an industrial access channel on the Chemical Coast.
The river was once on the lands of the Lenape Native Americans, and tradition states that the name is after Rahwack, a local tribal chief.The river is the source of drinking water for the City of Rahway. Each spring, the river is stocked with approximately 6,000 trout.The river is also the source of the name for the Rahway Valley Railroad which has a bridge over it on the Springfield/Union border.