Mill Creek at Last Chance Road Branch near College Place, WA

USGS Site No: 14015350 • Mill Creek • Walla Walla County, WA

Mill Creek at Last Chance Road Branch near College Place, WA on the Mill Creek is currently at 22 cfs (Low — 22th percentile for this date) . Gage height: 7.20 ft.

Reading from

22
CFS Discharge
7.20
Gage Height (ft)
Low
Flow Condition
N/A
Flood Status

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 0
25th Low threshold 28 Today: 22 cfs
50th (Median) Normal (median) 33
75th High threshold 37
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.

529 265 0 cfs Apr 6 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 22 —
May 27, 2026 35 —
May 26, 2026 32 —
May 25, 2026 27 —
May 24, 2026 28 —
May 23, 2026 30 —
May 22, 2026 35 —
May 21, 2026 40 —
May 20, 2026 45 —
May 19, 2026 48 —
May 18, 2026 51 —
May 17, 2026 54 —
May 16, 2026 57 —
May 15, 2026 61 —
Apr 21, 2026 255 —
Apr 20, 2026 230 —
Apr 19, 2026 242 —
Apr 18, 2026 275 —
Apr 17, 2026 324 —
Apr 16, 2026 373 —
Apr 15, 2026 411 —
Apr 14, 2026 490 —
Apr 13, 2026 410 —
Apr 12, 2026 223 —
Apr 11, 2026 194 —
Apr 10, 2026 177 —
Apr 9, 2026 186 —
Apr 8, 2026 191 —
Apr 7, 2026 220 —
Apr 6, 2026 221 —

Station Information

USGS Site No
14015350
State
WA
County
Walla Walla County
Coordinates
46.0513, -118.4505
Datum (ft)
649.1
HUC Code
17070102
View on USGS NWIS →

Recent Extremes

Max discharge
1,630 cfs
Mar 14, 2026
Min discharge
3 cfs
Jul 15, 2025

Computed from the local daily-values archive.

Nearby Gauges

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