Siuslaw River Near Mapleton, OR
USGS Site No: 14307620 • Siuslaw River • Lane County, OR
Siuslaw River Near Mapleton, OR on the Siuslaw River is currently at 358 cfs (Low — 17th percentile for this date) . Gage height: 3.68 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 | 309 | |
| 25th | Low threshold | 408 | Today: 358 cfs |
| 50th (Median) | Normal (median) | 533 | |
| 75th | High threshold | 770 | |
| 95th | Very High threshold | 1,800 |
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 | 374 | — |
| May 27, 2026 | 399 | — |
| May 26, 2026 | 414 | — |
| May 25, 2026 | 377 | — |
| May 24, 2026 | 379 | — |
| May 23, 2026 | 390 | — |
| May 22, 2026 | 404 | — |
| May 21, 2026 | 419 | — |
| May 20, 2026 | 433 | — |
| May 19, 2026 | 450 | — |
| May 18, 2026 | 473 | — |
| May 17, 2026 | 502 | — |
| May 16, 2026 | 514 | — |
| May 15, 2026 | 490 | — |
| Apr 20, 2026 | 1,400 | — |
| Apr 19, 2026 | 1,560 | — |
| Apr 18, 2026 | 1,800 | — |
| Apr 17, 2026 | 2,110 | — |
| Apr 16, 2026 | 2,560 | — |
| Apr 15, 2026 | 2,140 | — |
| Apr 14, 2026 | 1,030 | — |
| Apr 13, 2026 | 1,060 | — |
| Apr 12, 2026 | 1,080 | — |
| Apr 11, 2026 | 980 | — |
| Apr 10, 2026 | 975 | — |
| Apr 9, 2026 | 1,020 | — |
| Apr 8, 2026 | 1,080 | — |
| Apr 7, 2026 | 1,170 | — |
| Apr 6, 2026 | 1,290 | — |
| Apr 5, 2026 | 1,450 | — |
Station Information
- USGS Site No
- 14307620
- State
- OR
- County
- Lane County
- Coordinates
- 44.0623, -123.8832
- Drainage Area
- 588 mi²
- Datum (ft)
- 41.0
- HUC Code
- 17100206
Flood Stage Thresholds
- Action Stage
- 15.0 ft
- Flood Stage
- 18.0 ft
- Moderate Flood
- 22.0 ft
- Major Flood
- 28.0 ft
Currently 14.32 ft below flood stage.
Recent Extremes
- Max discharge
-
22,800 cfsDec 19, 2025
- Min discharge
-
51 cfsSep 28, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Lake Creek at Swisshome, ORUnknown4.4 mi · 181 cfs
-
Siuslaw River Near Alma, ORUnknown16.7 mi · 58 cfs
-
East Fork Lobster Creek Near Alsea, Or.Low17.7 mi · 3 cfs
-
Alsea River Near Tidewater, ORLow22.5 mi · 275 cfs
-
Long Tom River Near Noti, ORLow22.7 mi · 42 cfs