USGS Streamgage 14015350
Mill Creek at Last Chance Rd Br near College Place, WA
Mill Creek at Last Chance Rd Br near College Place, WA is USGS streamgage 14015350 in Washington, monitoring river discharge in hydrologic subbasin 17070102. It sits on the Mill Creek, alongside 3 other gauges Rivermatics tracks on the same river. Discharge records at this site go back to 2021. Typical flow runs near 7.1 cfs in July and 147.9 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- Washington
- Subbasin (HUC-8)
- 17070102
- Coordinates
- 46.05127, -118.4505
- USGS site number
- 14015350
- Records begin
- 2021-02-03 (5 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Mill Creek at Last Chance Rd Br near College Place, WA. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 18.6 | 19.8 | 21.6 | ||
| 18.1 | 20 | 22.9 | ||
| 22.6 | 32.5 | 63.8 | ||
| 22.3 | 31.6 | 60.6 | ||
| 20.7 | 27.3 | 42.3 | ||
| 18.9 | 24 | 34.2 | ||
| 17.5 | 22 | 30.2 | ||
| 16.6 | 20.9 | 28.5 | ||
| 17.2 | 22 | 30.8 | ||
| 16.4 | 20.9 | 28.9 | ||
| 16.8 | 21.8 | 30.8 | ||
| 16.1 | 20.8 | 29.2 | ||
| 14.6 | 18.5 | 25.1 | ||
| 14.3 | 18.3 | 24.8 |
All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 5 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | — | 148.1 | — | |
| February | — | 157 | — | |
| March | — | 210.1 | — | |
| April | — | 147.9 | — | |
| May | — | 89.7 | — | |
| June | — | 22.1 | — | |
| July | — | 7.1 | — | |
| August | — | 12.5 | — | |
| September | — | 19.5 | — | |
| October | — | 23.8 | — | |
| November | — | 61.5 | — | |
| December | — | 125 | — |
All values in cubic feet per second (cfs).
Common questions
- When does Mill Creek at Last Chance Rd Br near College Place, WA normally run highest?
- March, on the long-term record. The median daily flow that month is about 210.1 cfs, against 7.1 cfs in July, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- How long has Mill Creek at Last Chance Rd Br near College Place, WA been measured?
- Discharge records at USGS site 14015350 begin in 2021, about 5 years, covering roughly 2,011 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Mill Creek at Last Chance Rd Br near College Place, WA?
- Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
- Where is Mill Creek at Last Chance Rd Br near College Place, WA?
- The gauge sits at 46.05127, -118.4505, in Washington, in hydrologic subbasin 17070102.
- Can I use Mill Creek at Last Chance Rd Br near College Place, WA data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.
Upstream and downstream on the Mill Creek
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Mill Creek in full.
- Mill Creek near Walla Walla, WA 60 sq mi
- Mill Creek at Five Mile Rd Br near Walla Walla, WA 93 sq mi
- Mill Creek at Walla Walla, WA 96 sq mi
- Mill Creek at Last Chance Rd Br near College Place, WA this page