Snake River above Eagle Rock near Idaho Falls ID
USGS Site No: 13057155 • Snake River • Bonneville County, ID
Snake River above Eagle Rock near Idaho Falls ID on the Snake River is currently at 6,680 cfs (Very High — 98th percentile for this date) . Gage height: 8.11 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 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 | 2,140 | |
| 25th | Low threshold | 2,630 | |
| 50th (Median) | Normal (median) | 3,240 | |
| 75th | High threshold | 3,750 | |
| 95th | Very High threshold | 5,140 |
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 | 6,600 | — |
| May 27, 2026 | 6,540 | — |
| May 26, 2026 | 6,520 | — |
| May 25, 2026 | 6,350 | — |
| May 24, 2026 | 6,280 | — |
| May 23, 2026 | 6,350 | — |
| May 22, 2026 | 6,230 | — |
| May 21, 2026 | 6,190 | — |
| May 20, 2026 | 6,500 | — |
| May 19, 2026 | 6,750 | — |
| May 18, 2026 | 6,770 | — |
| May 17, 2026 | 6,810 | — |
| May 16, 2026 | 6,670 | — |
| May 15, 2026 | 6,030 | — |
| Apr 20, 2026 | 3,900 | — |
| Apr 19, 2026 | 4,260 | — |
| Apr 18, 2026 | 4,510 | — |
| Apr 17, 2026 | 4,150 | — |
| Apr 16, 2026 | 3,920 | — |
| Apr 15, 2026 | 3,950 | — |
| Apr 14, 2026 | 4,220 | — |
| Apr 13, 2026 | 4,370 | — |
| Apr 12, 2026 | 4,430 | — |
| Apr 11, 2026 | 4,600 | — |
| Apr 10, 2026 | 4,380 | — |
| Apr 9, 2026 | 3,440 | — |
| Apr 8, 2026 | 2,740 | — |
| Apr 7, 2026 | 2,730 | — |
| Apr 6, 2026 | 2,980 | — |
| Apr 5, 2026 | 3,300 | — |
Station Information
- USGS Site No
- 13057155
- State
- ID
- County
- Bonneville County
- Coordinates
- 43.6047, -112.0586
- Drainage Area
- 9,533 mi²
- Datum (ft)
- 4,733.2
- HUC Code
- 17040201
Flood Stage Thresholds
- Action Stage
- 12.6 ft
- Flood Stage
- 13.2 ft
Currently 5.09 ft below flood stage.
Recent Extremes
- Max discharge
-
13,200 cfsMay 15, 2025
- Min discharge
-
2,060 cfsMar 9, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Great Western Spillback near Idaho Falls IDHigh0.3 mi · 65 cfs
-
Willow Creek Floodway Channel at Mouth near ID Falls IDLow2.1 mi · 1 cfs
-
Willow Creek Floodway Channel near Ucon IDLow7.5 mi · 0 cfs
-
Willow Creek below Floodway Channel near Ucon IDVery High7.6 mi · 120 cfs
-
Sand Creek Near Ucon IDVery High8.5 mi · 384 cfs