Big Wood River below Magic Dam near Richfield ID
USGS Site No: 13142500 • Big Wood River • Blaine County, ID
Big Wood River below Magic Dam near Richfield ID on the Big Wood River is currently at 923 cfs (Very High — 179th percentile for this date) . Gage height: 4.73 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 | |
| 25th | Low threshold | 4 | |
| 50th (Median) | Normal (median) | 8 | |
| 75th | High threshold | 13 | |
| 95th | Very High threshold | 98 |
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 | 921 | — |
| May 27, 2026 | 903 | — |
| May 26, 2026 | 897 | — |
| May 25, 2026 | 897 | — |
| May 24, 2026 | 891 | — |
| May 23, 2026 | 889 | — |
| May 22, 2026 | 892 | — |
| May 21, 2026 | 895 | — |
| May 20, 2026 | 899 | — |
| May 19, 2026 | 911 | — |
| May 18, 2026 | 922 | — |
| May 17, 2026 | 922 | — |
| May 16, 2026 | 922 | — |
| May 15, 2026 | 915 | — |
| Apr 20, 2026 | 6 | — |
| Apr 19, 2026 | 6 | — |
| Apr 18, 2026 | 6 | — |
| Apr 17, 2026 | 6 | — |
| Apr 16, 2026 | 6 | — |
| Apr 15, 2026 | 6 | — |
| Apr 14, 2026 | 6 | — |
| Apr 13, 2026 | 6 | — |
| Apr 12, 2026 | 5 | — |
| Apr 11, 2026 | 5 | — |
| Apr 10, 2026 | 5 | — |
| Apr 9, 2026 | 5 | — |
| Apr 8, 2026 | 5 | — |
| Apr 7, 2026 | 5 | — |
| Apr 6, 2026 | 5 | — |
| Apr 5, 2026 | 5 | — |
Station Information
- USGS Site No
- 13142500
- State
- ID
- County
- Blaine County
- Coordinates
- 43.2481, -114.3567
- Drainage Area
- 1,611 mi²
- Datum (ft)
- 4,661.6
- HUC Code
- 17040219
Flood Stage Thresholds
- Action Stage
- 8.5 ft
- Flood Stage
- 9.0 ft
Currently 4.27 ft below flood stage.
Recent Extremes
- Max discharge
-
938 cfsJun 28, 2025
- Min discharge
-
2 cfsNov 7, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Big Wood River at Stanton Crossing near Bellevue IDVery High5.9 mi · 631 cfs
-
Camas Creek near Blaine IDNormal11.0 mi · 6 cfs
-
Big Wood River at Glendale Bridge near Bellevue IDUnknown13.2 mi · 0 cfs
-
Silver Creek at Sportsman Access near Picabo IDLow13.5 mi · 100 cfs
-
Big Wood River at South Broadford Bridge near Bellevue, IDVery High15.8 mi · 1,150 cfs