Tioga HUC8 02050104
A 3,585 km² sub-basin of the Mid-Atlantic region in NY, PA. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
80
Healthy
Drought index
0
None
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 12 reporting
Median flow
200%
p76 of record
Water assets
1,297
10 springs · 996 wells
USGS gauges (15)
- Tioga River near Mansfield, PA0151635045 cfsp64 · normal
- Corey Creek near Mainesburg, PA015165001 cfsp67 · normal
- Cowanesque River near Lawrenceville, PA0152000064 cfsp67 · normal
- TIOGA RIVER NEAR ERWINS NY01526500351 cfsp71 · normal
- Tioga River at Tioga, PA01518000100 cfsp72 · normal
- Tioga River at Tioga Junction, PA01518700115 cfsp73 · normal
- Cowanesque River at Westfield, PA0151886227 cfsp78 · above normal
- CANACADEA CREEK NEAR HORNELL NY0152350020 cfsp78 · above normal
- CANISTEO RIVER BELOW CANACADEA CREEK AT HORNELL NY0152450051 cfsp78 · above normal
- TUSCARORA CREEK ABOVE SOUTH ADDISON NY0152598121 cfsp83 · above normal
- CANISTEO RIVER AT WEST CAMERON NY01525500103 cfsp84 · above normal
- CANISTEO RIVER AT ARKPORT NY015215009 cfsp89 · above normal
- Crooked Cr bl Catlin Hollow at Middlebury Center0151842011 cfsno long-term record
- Cowanesque River at Elkland, PA0151920057 cfsno long-term record
- TIOGA RIVER AT LINDLEY NY0152050059 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 0 | 0 | 0/12 | p76 |
Top water assets
- 67Arkport Damreservoir
- 67Hammond Damreservoir
- 67Tioga Damreservoir
- 67Cowanesque Damreservoir
- 66Almond Damreservoir
- 65Canisteo River At Arkport Nyriver
- 65Corey Creek Near Mainesburg, Pariver
- 65Tioga River At Lindley Nyriver
- 65Canisteo River At West Cameron Nyriver
- 65Clayton Herrington Pond Dams A & Breservoir