The Ramapo River is a tributary of the Pompton River, located in northeastern New Jersey.
Total streamflow across the
Ramapo River
was last observed at
173
cfs, and is expected to yield approximately
344
acre-ft of water today; about 29%
of normal.
River levels are low and may signify a drought.
Average streamflow for this time of year is
596 cfs,
with recent peaks last observed
on
2011-08-29 when daily discharge volume was observed at
37,320 cfs.
Maximum discharge along the river is currently at the
Ramapo River Near Mahwah Nj
reporting a streamflow rate of 73.4 cfs.
However, the streamgauge with the highest stage along the river is the
Ramapo River At Pompton Lakes Nj
with a gauge stage of 6.95 ft.
This river is monitored from 4 different streamgauging stations along the Ramapo River, the highest being situated at an altitude of 300 ft, the
Ramapo River At Ramapo Ny.
| Last Updated | 2025-11-16 |
| Discharge Volume | 344 ACRE-FT |
| Streamflow |
173.4 cfs
+18.4 cfs (+11.87%) |
| Percent of Normal | 29.07% |
| Maximum |
37,320.0 cfs
2011-08-29 |
| Seasonal Avg | 596 cfs |
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Ramapo River At Ramapo Ny
USGS 01387400 |
36 cfs | 1.79 ft | -5.82 | |||||
|
Ramapo River At Suffern Ny
USGS 01387420 |
34 cfs | 2.72 ft | 0 | |||||
|
Ramapo River Near Mahwah Nj
USGS 01387500 |
73 cfs | 3.08 ft | 23.36 | |||||
|
Ramapo River At Pompton Lakes Nj
USGS 01388000 |
64 cfs | 6.95 ft | 11.61 |
The Ramapo River is a tributary of the Pompton River, approximately 30 mi (48 km) long, in southern New York and northern New Jersey in the United States.