Allegheny River at Salamanca NY
USGS Site No: 03011020 • Allegheny River • Cattaraugus County, NY
Allegheny River at Salamanca NY on the Allegheny River is currently at 2,060 cfs (Normal — 70th percentile for this date) . Gage height: 4.00 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 539 | |
| 25th | Low threshold | 772 | |
| 50th (Median) | Normal (median) | 1,150 | |
| 75th | High threshold | 2,300 | Today: 2,060 cfs |
| 95th | Very High threshold | 7,190 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 2,440 | — |
| May 27, 2026 | 2,790 | — |
| May 26, 2026 | 3,470 | — |
| May 25, 2026 | 3,650 | — |
| May 24, 2026 | 2,920 | — |
| May 23, 2026 | 1,830 | — |
| May 22, 2026 | 1,650 | — |
| May 21, 2026 | 1,840 | — |
| May 20, 2026 | 2,040 | — |
| May 19, 2026 | 2,300 | — |
| May 18, 2026 | 2,650 | — |
| May 17, 2026 | 3,090 | — |
| May 16, 2026 | 3,570 | — |
| May 15, 2026 | 4,310 | — |
| Apr 21, 2026 | 6,800 | — |
| Apr 20, 2026 | 8,460 | — |
| Apr 19, 2026 | 9,470 | — |
| Apr 18, 2026 | 8,940 | — |
| Apr 17, 2026 | 10,900 | — |
| Apr 16, 2026 | 6,810 | — |
| Apr 15, 2026 | 3,830 | — |
| Apr 14, 2026 | 3,110 | — |
| Apr 13, 2026 | 3,160 | — |
| Apr 12, 2026 | 3,680 | — |
| Apr 11, 2026 | 4,310 | — |
| Apr 10, 2026 | 4,760 | — |
| Apr 9, 2026 | 5,650 | — |
| Apr 8, 2026 | 7,130 | — |
| Apr 7, 2026 | 8,820 | — |
| Apr 6, 2026 | 10,100 | — |
Station Information
- USGS Site No
- 03011020
- State
- NY
- County
- Cattaraugus County
- Coordinates
- 42.1568, -78.7156
- Drainage Area
- 1,608 mi²
- Datum (ft)
- 1,357.5
- HUC Code
- 05010001
Flood Stage Thresholds
- Action Stage
- 9.0 ft
- Flood Stage
- 12.0 ft
- Moderate Flood
- 14.0 ft
- Major Flood
- 21.0 ft
Currently 8.00 ft below flood stage.
Recent Extremes
- Max discharge
-
15,700 cfsMar 8, 2026
- Min discharge
-
118 cfsSep 22, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Allegheny River at Olean NYNormal14.8 mi · 1,510 cfs
-
Allegheny River at Eldred, PAHigh21.5 mi · 761 cfs
-
Thatcher Brook at Gowanda NYVery High23.5 mi · 9 cfs
-
Cattaraugus Creek at Gowanda NYNormal24.0 mi · 424 cfs
-
Chadakoin River at Falconer NYNormal25.2 mi · 70 cfs