Mf Stanislaus River at Hells Half Acre Bridge CA
USGS Site No: 11292700 • Mf Stanislaus River • Tuolumne County, CA
Current reading not available.
Nearby gauges with live readings
This gauge isn't reporting right now. These nearby USGS gauges are currently active:
- Tuolumne River near Hetch Hetchy CA 25.0 mi@if($nearby->currentReading) · 366 cfs@endif
- Tuolumne River at Grand Cyn Of Tuolumne above Hetch Hetchy 30.6 mi@if($nearby->currentReading) · 819 cfs@endif
- West Walker Rv below L Walker Rv near Coleville, CA 33.0 mi@if($nearby->currentReading) · 422 cfs@endif
- East Fork Carson Rv below Markleeville Ck near Markleeville 35.4 mi@if($nearby->currentReading) · 407 cfs@endif
- West Walker Rv near Coleville, CA 36.6 mi@if($nearby->currentReading) · 383 cfs@endif
↑ Upstream on Mf Stanislaus River
Mf Stanislaus River at Kennedy Mdws near Dardanelle CA
Downstream on Mf Stanislaus River ↓
Mf Stanislaus River below Beardsley Dam CA
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 | 21 | |
| 25th | Low threshold | 30 | |
| 50th (Median) | Normal (median) | 38 | |
| 75th | High threshold | 47 | |
| 95th | Very High threshold | 189 |
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.
10th–95th historical
Day-of-year median
Recent discharge
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| Oct 1, 2025 | 51 | — |
| Sep 30, 2025 | 49 | — |
| Sep 29, 2025 | 49 | — |
| Sep 28, 2025 | 49 | — |
| Sep 27, 2025 | 49 | — |
| Sep 26, 2025 | 50 | — |
| Sep 25, 2025 | 50 | — |
| Sep 24, 2025 | 49 | — |
| Sep 23, 2025 | 48 | — |
| Sep 22, 2025 | 49 | — |
| Sep 21, 2025 | 49 | — |
| Sep 20, 2025 | 49 | — |
| Sep 19, 2025 | 50 | — |
| Sep 18, 2025 | 50 | — |
| Sep 17, 2025 | 50 | — |
| Sep 16, 2025 | 49 | — |
| Sep 15, 2025 | 49 | — |
| Sep 14, 2025 | 49 | — |
| Sep 13, 2025 | 50 | — |
| Sep 12, 2025 | 50 | — |
| Sep 11, 2025 | 43 | — |
| Sep 10, 2025 | 43 | — |
| Sep 9, 2025 | 43 | — |
| Sep 8, 2025 | 43 | — |
| Sep 7, 2025 | 43 | — |
| Sep 6, 2025 | 43 | — |
| Sep 5, 2025 | 43 | — |
| Sep 4, 2025 | 43 | — |
| Sep 3, 2025 | 44 | — |
| Sep 2, 2025 | 44 | — |
Station Information
- USGS Site No
- 11292700
- State
- CA
- County
- Tuolumne County
- Coordinates
- 38.2471, -120.0346
- Drainage Area
- 287 mi²
- Datum (ft)
- 3,410.9
- HUC Code
- 18040010
Recent Extremes
- Max discharge
-
1,450 cfsMay 12, 2025
- Min discharge
-
42 cfsSep 1, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
Tuolumne River near Hetch Hetchy CAVery High25.0 mi · 366 cfs
-
Tuolumne River at Grand Cyn Of Tuolumne above Hetch HetchyHigh30.6 mi · 819 cfs
-
West Walker Rv below L Walker Rv near Coleville, CAVery High33.0 mi · 422 cfs
-
East Fork Carson Rv below Markleeville Ck near MarkleevilleVery High35.4 mi · 407 cfs
-
West Walker Rv near Coleville, CAVery High36.6 mi · 383 cfs