USGS Streamgage 14312000
South Umpqua River near Brockway, OR
South Umpqua River near Brockway, OR is USGS streamgage 14312000 in Oregon, monitoring river discharge in hydrologic subbasin 17100302. It sits on the South Umpqua River, alongside 2 other gauges Rivermatics tracks on the same river. It drains a watershed of about 1,670 square miles. Discharge records at this site go back to 1905. Typical flow runs near 228.8 cfs in July and 2,724 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, alongside daily high and low water-temperature forecasts.
View live conditions & forecast →
Gauge details
- State
- Oregon
- Drainage area
- 1,670 sq mi
- Subbasin (HUC-8)
- 17100302
- Coordinates
- 43.13317, -123.39841
- USGS site number
- 14312000
- Records begin
- 1905-12-01 (121 years)
- Rivermatics forecast
- 14-day flow outlook + water temperature
14-day flow forecast
Based on observations through for South Umpqua River near Brockway, OR. 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 |
|---|---|---|---|---|
| 104 | 114 | 122 | ||
| 100 | 114 | 134 | ||
| 99.9 | 122 | 157 | ||
| 96.4 | 121 | 158 | ||
| 91.4 | 115 | 151 | ||
| 85.6 | 108 | 141 | ||
| 79.6 | 101 | 132 | ||
| 75.4 | 96.6 | 126 | ||
| 73.8 | 94.8 | 122 | ||
| 73.7 | 95.1 | 123 | ||
| 70.2 | 90.9 | 118 | ||
| 68.5 | 88.6 | 114 | ||
| 67.1 | 87.1 | 113 | ||
| 64.9 | 85 | 110 |
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 120 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 | 1,139.2 | 3,889.7 | 16,019.4 | |
| February | 1,375.5 | 3,998.6 | 12,603.4 | |
| March | 1,460 | 3,611.6 | 9,621.9 | |
| April | 1,221.5 | 2,724 | 5,827.3 | |
| May | 673 | 1,564.2 | 3,275.2 | |
| June | 307.5 | 673.9 | 1,621.7 | |
| July | 113.9 | 228.8 | 416.2 | |
| August | 65.4 | 116.5 | 221.9 | |
| September | 73.8 | 124 | 232.5 | |
| October | 118.8 | 219.5 | 730.7 | |
| November | 240.1 | 982.2 | 5,915 | |
| December | 622.4 | 2,780 | 14,213.5 |
All values in cubic feet per second (cfs).
Common questions
- When does South Umpqua River near Brockway, OR normally run highest?
- February, on the long-term record. The median daily flow that month is about 3,998.6 cfs, against 116.5 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for South Umpqua River near Brockway, OR?
- It depends on the month. In January, half of days historically fall near 3,889.7 cfs, with the middle 80% of days between 1,139.2 and 16,019.4 cfs. The month-by-month table on this page gives the full range.
- How long has South Umpqua River near Brockway, OR been measured?
- Discharge records at USGS site 14312000 begin in 1905, about 121 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for South Umpqua River near Brockway, OR?
- 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. A companion model forecasts each day's water-temperature high and low. 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 South Umpqua River near Brockway, OR?
- The gauge sits at 43.13317, -123.39841, in Oregon, in hydrologic subbasin 17100302, draining roughly 1,670 square miles.
- Can I use South Umpqua River near Brockway, OR 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 South Umpqua River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the South Umpqua River in full.
- South Umpqua River at Tiller, OR 449 sq mi
- South Umpqua River near Brockway, OR this page
- South Umpqua River at Melrose, OR 1,770 sq mi