Summary
Total streamflow across the
Oswegatchie River
was last observed at
7,360
cfs, and is expected to yield approximately
14,598
acre-ft of water today; about 185%
of normal.
River levels are high.
Average streamflow for this time of year is
3,972 cfs,
with recent peaks last observed
on
2014-04-15 when daily discharge volume was observed at
16,160 cfs.
Maximum discharge along the river is currently at the
Oswegatchie River Near Heuvelton Ny
reporting a streamflow rate of 5,740 cfs.
This is also the highest stage along the Oswegatchie River, with a gauge stage of
5.1 ft at this location.
This river is monitored from 2 different streamgauging stations along the Oswegatchie River, the highest being situated at an altitude of 1,033 ft, the
Oswegatchie River Near Oswegatchie Ny.
15-Day Weather Outlook
River Details
| Last Updated | 2026-03-10 |
| Discharge Volume | 14,598 ACRE-FT |
| Streamflow |
7,360.0 cfs
+1370.0 cfs (+22.87%) |
| Percent of Normal | 185.29% |
| Maximum |
16,160.0 cfs
2014-04-15 |
| Seasonal Avg | 3,972 cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Oswegatchie River Near Oswegatchie Ny
USGS 04262000 |
1620 cfs | 4.59 ft | 15.71 | |||||
|
Oswegatchie River Near Heuvelton Ny
USGS 04263000 |
5740 cfs | 5.1 ft | 25.05 |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
The Oswegatchie River is a 137-mile-long (220 km) river in northern New York that flows from the Adirondack Mountains north to the Saint Lawrence River. The Oswegatchie River begins at Partlow Lake in Hamilton County, New York. The river continues through Cranberry Lake which was 'doubled in size' through construction of a dam in the late 1860s. The river continues from the dam to Gouverneur, to near Talcville in St. Lawrence County, where it joins the West Branch. Much of it is within Adirondack State Park. The city of Ogdensburg developed at the mouth of the river at its confluence with the St. Lawrence.