Alamo Cn near Pleasanton CA

USGS Site No: 11174600 • Alameda County, CA

Alamo Cn near Pleasanton CA is currently at 7 cfs (Very High — 95th percentile for this date) . Gage height: 1.87 ft.

Reading from

7
CFS Discharge
1.87
Gage Height (ft)
Very High
Flow Condition
Normal
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 2
25th Low threshold 3
50th (Median) Normal (median) 4
75th High threshold 6
95th Very High threshold 0

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.

163 82 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 46 —
May 27, 2026 4 —
May 26, 2026 4 —
May 25, 2026 3 —
May 24, 2026 3 —
May 23, 2026 3 —
May 22, 2026 3 —
May 21, 2026 3 —
May 20, 2026 3 —
May 19, 2026 3 —
May 18, 2026 3 —
May 17, 2026 4 —
May 16, 2026 4 —
May 15, 2026 5 —
Apr 20, 2026 12 —
Apr 19, 2026 5 —
Apr 18, 2026 5 —
Apr 17, 2026 6 —
Apr 16, 2026 7 —
Apr 15, 2026 9 —
Apr 14, 2026 16 —
Apr 13, 2026 50 —
Apr 12, 2026 151 —
Apr 11, 2026 146 —
Apr 10, 2026 66 —
Apr 9, 2026 4 —
Apr 8, 2026 3 —
Apr 7, 2026 3 —
Apr 6, 2026 4 —
Apr 5, 2026 4 —

Station Information

USGS Site No
11174600
State
CA
County
Alameda County
Coordinates
37.6944, -121.9194
Drainage Area
40 mi²
Datum (ft)
306.6
HUC Code
18050004
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
20.6 ft
Flood Stage
21.6 ft

Currently 19.72 ft below flood stage.

Recent Extremes

Max discharge
504 cfs
Feb 17, 2026
Min discharge
1 cfs
Aug 11, 2025
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges

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