Mad River above Ruth Reservoir near Forest Glen CA

USGS Site No: 11480390 • Mad River • Trinity County, CA

Mad River above Ruth Reservoir near Forest Glen CA on the Mad River is currently at 27 cfs (Normal — 58th percentile for this date) . Gage height: 2.78 ft.

Reading from

Downstream on Mad River ↓
Mad River below Ruth Reservoir near Forest Glen CA
27
CFS Discharge
2.78
Gage Height (ft)
Normal
Flow Condition
N/A
Flood Status

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 6
25th Low threshold 14
50th (Median) Normal (median) 21
75th High threshold 40 Today: 27 cfs
95th Very High threshold 145

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.

1.7k 837 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 29 —
May 27, 2026 25 —
May 26, 2026 24 —
May 25, 2026 24 —
May 24, 2026 26 —
May 23, 2026 27 —
May 22, 2026 27 —
May 21, 2026 28 —
May 20, 2026 29 —
May 19, 2026 31 —
May 18, 2026 32 —
May 17, 2026 33 —
May 16, 2026 35 —
May 15, 2026 36 —
Apr 20, 2026 101 —
Apr 19, 2026 82 —
Apr 18, 2026 89 —
Apr 17, 2026 99 —
Apr 16, 2026 114 —
Apr 15, 2026 130 —
Apr 14, 2026 159 —
Apr 13, 2026 211 —
Apr 12, 2026 183 —
Apr 11, 2026 64 —
Apr 10, 2026 50 —
Apr 9, 2026 49 —
Apr 8, 2026 48 —
Apr 7, 2026 51 —
Apr 6, 2026 54 —
Apr 5, 2026 58 —

Station Information

USGS Site No
11480390
State
CA
County
Trinity County
Coordinates
40.2843, -123.3353
Drainage Area
94 mi²
Datum (ft)
2,668.7
HUC Code
18010102
View on USGS NWIS →

Recent Extremes

Max discharge
6,200 cfs
Dec 21, 2025
Min discharge
0 cfs
Sep 27, 2025

Computed from the local daily-values archive.

Nearby Gauges

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