Marys River Near Philomath, OR
USGS Site No: 14171000 • Marys River • Benton County, OR
Marys River Near Philomath, OR on the Marys River is currently at 78 cfs (Normal — 35th percentile for this date) . Gage height: 3.01 ft.
Reading from
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 | 55 | |
| 25th | Low threshold | 70 | |
| 50th (Median) | Normal (median) | 91 | Today: 78 cfs |
| 75th | High threshold | 132 | |
| 95th | Very High threshold | 312 |
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.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 82 | — |
| May 27, 2026 | 85 | — |
| May 26, 2026 | 85 | — |
| May 25, 2026 | 81 | — |
| May 24, 2026 | 83 | — |
| May 23, 2026 | 85 | — |
| May 22, 2026 | 87 | — |
| May 21, 2026 | 93 | — |
| May 20, 2026 | 97 | — |
| May 19, 2026 | 100 | — |
| May 18, 2026 | 109 | — |
| May 17, 2026 | 119 | — |
| May 16, 2026 | 113 | — |
| May 15, 2026 | 108 | — |
| Apr 20, 2026 | 347 | — |
| Apr 19, 2026 | 406 | — |
| Apr 18, 2026 | 486 | — |
| Apr 17, 2026 | 601 | — |
| Apr 16, 2026 | 748 | — |
| Apr 15, 2026 | 562 | — |
| Apr 14, 2026 | 202 | — |
| Apr 13, 2026 | 219 | — |
| Apr 12, 2026 | 243 | — |
| Apr 11, 2026 | 185 | — |
| Apr 10, 2026 | 174 | — |
| Apr 9, 2026 | 180 | — |
| Apr 8, 2026 | 188 | — |
| Apr 7, 2026 | 198 | — |
| Apr 6, 2026 | 212 | — |
| Apr 5, 2026 | 230 | — |
Station Information
- USGS Site No
- 14171000
- State
- OR
- County
- Benton County
- Coordinates
- 44.5250, -123.3340
- Drainage Area
- 159 mi²
- Datum (ft)
- 224.0
- HUC Code
- 17090003
Flood Stage Thresholds
- Action Stage
- 16.0 ft
- Flood Stage
- 20.0 ft
- Moderate Flood
- 21.0 ft
- Major Flood
- 21.5 ft
Currently 16.99 ft below flood stage.
Recent Extremes
- Max discharge
-
5,290 cfsDec 19, 2025
- Min discharge
-
7 cfsAug 25, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Willamette River at Corvallis, ORNormal4.8 mi · 6,540 cfs
-
Calapooia River at Albany, ORLow12.1 mi · 119 cfs
-
Willamette River at Albany, ORLow13.7 mi · 6,800 cfs
-
Long Tom River at Monroe, ORNormal14.8 mi · 81 cfs
-
Luckiamute River Near Buena Vista, ORVery High16.5 mi · 124 cfs