USGS Streamgage 12080010
Deschutes River at E St Bridge at Tumwater, WA
Deschutes River at E St Bridge at Tumwater, WA is USGS streamgage 12080010 in Washington, monitoring river discharge in hydrologic subbasin 17110016. It sits on the Deschutes River, alongside 1 other gauge Rivermatics tracks on the same river. It drains a watershed of about 162 square miles. Discharge records at this site go back to 1945. Typical flow runs near 127.4 cfs in July and 412 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
- Drainage area
- 162 sq mi
- Gauge elevation
- 96 ft
- Subbasin (HUC-8)
- 17110016
- Coordinates
- 47.01173, -122.90317
- USGS site number
- 12080010
- Records begin
- 1945-05-01 (81 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Deschutes River at E St Bridge at Tumwater, 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 |
|---|---|---|---|---|
| 69.8 | 72 | 74.1 | ||
| 69.8 | 73.5 | 79.6 | ||
| 75.6 | 92 | 136 | ||
| 81.6 | 105 | 154 | ||
| 79.4 | 99.1 | 138 | ||
| 75.4 | 91.4 | 122 | ||
| 72.4 | 85.9 | 110 | ||
| 69.8 | 81.6 | 102 | ||
| 68.5 | 79.3 | 96.6 | ||
| 67.4 | 77.7 | 93.1 | ||
| 66.4 | 76.2 | 90.2 | ||
| 64.9 | 74.8 | 88.5 | ||
| 63.9 | 73.8 | 87 | ||
| 63.4 | 73.4 | 86.5 |
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 81 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 | 272.1 | 590.7 | 1,611 | |
| February | 276.9 | 558.5 | 1,389.3 | |
| March | 279.3 | 508.8 | 1,135.4 | |
| April | 266.2 | 412 | 789.8 | |
| May | 180.7 | 274.9 | 474.2 | |
| June | 128.4 | 185.7 | 286.6 | |
| July | 93.6 | 127.4 | 169.6 | |
| August | 77.5 | 103.3 | 134.2 | |
| September | 64 | 92.9 | 137.5 | |
| October | 76.4 | 122.1 | 295.9 | |
| November | 121.2 | 343.9 | 1,131.9 | |
| December | 209.9 | 514.6 | 1,559 |
All values in cubic feet per second (cfs).
Common questions
- When does Deschutes River at E St Bridge at Tumwater, WA normally run highest?
- January, on the long-term record. The median daily flow that month is about 590.7 cfs, against 92.9 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Deschutes River at E St Bridge at Tumwater, WA?
- It depends on the month. In January, half of days historically fall near 590.7 cfs, with the middle 80% of days between 272.1 and 1,611 cfs. The month-by-month table on this page gives the full range.
- How long has Deschutes River at E St Bridge at Tumwater, WA been measured?
- Discharge records at USGS site 12080010 begin in 1945, about 81 years, covering roughly 9,199 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Deschutes River at E St Bridge at Tumwater, 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 Deschutes River at E St Bridge at Tumwater, WA?
- The gauge sits at 47.01173, -122.90317, in Washington, in hydrologic subbasin 17110016, at an elevation of about 96 feet, draining roughly 162 square miles.
- Can I use Deschutes River at E St Bridge at Tumwater, 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 Deschutes River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Deschutes River in full.
- Deschutes River near Rainier, WA 90 sq mi
- Deschutes River at E St Bridge at Tumwater, WA this page