Oswegatchie HUC8 04290003
A 2,720 km² sub-basin of the Great Lakes region in NY. Drought coverage is from the US Drought Monitor; streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
79
Healthy
Drought index
—
—
Area in D2+
—
Gauges below normal
0%
of 2 reporting
Median flow
88%
p42 of record
Water assets
792
0 springs · 54 wells
USGS gauges (2)
- WEST BRANCH OSWEGATCHIE RIVER NEAR HARRISVILLE NY0426250092 cfsp32 · normal
- OSWEGATCHIE RIVER NEAR HEUVELTON NY04263000516 cfsp51 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | — | — | 0/2 | p42 |
Top water assets
- 67Middle Branch Oswegatchie Riverriver
- 66Browns Fallsreservoir
- 66Benson Mines Plant Damreservoir
- 66Flat Rockreservoir
- 66South Edwardsreservoir
- 66Hollow Damreservoir
- 66Newton Falls Stabilization Pond #4 Damreservoir
- 65Ogdensburgreservoir
- 65Newton Falls Lowerreservoir
- 65Bassetts Creekriver