Oak Grove Fork Above Powerplant Intake, Or.
USGS Site No: 14209000 • Oak Grove Fork • Clackamas County, OR
Oak Grove Fork Above Powerplant Intake, Or. on the Oak Grove Fork is currently at 300 cfs (Low — 18th percentile for this date) . Gage height: 4.91 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 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 | 275 | |
| 25th | Low threshold | 320 | Today: 300 cfs |
| 50th (Median) | Normal (median) | 368 | |
| 75th | High threshold | 449 | |
| 95th | Very High threshold | 596 |
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 | 294 | — |
| May 27, 2026 | 288 | — |
| May 26, 2026 | 293 | — |
| May 25, 2026 | 294 | — |
| May 24, 2026 | 294 | — |
| May 23, 2026 | 295 | — |
| May 22, 2026 | 296 | — |
| May 21, 2026 | 296 | — |
| May 19, 2026 | 310 | — |
| May 18, 2026 | 318 | — |
| May 17, 2026 | 325 | — |
| May 16, 2026 | 321 | — |
| May 15, 2026 | 309 | — |
| Apr 20, 2026 | 362 | — |
| Apr 19, 2026 | 366 | — |
| Apr 18, 2026 | 389 | — |
| Apr 17, 2026 | 423 | — |
| Apr 16, 2026 | 440 | — |
| Apr 15, 2026 | 431 | — |
| Apr 14, 2026 | 385 | — |
| Apr 13, 2026 | 390 | — |
| Apr 12, 2026 | 388 | — |
| Apr 11, 2026 | 385 | — |
| Apr 10, 2026 | 377 | — |
| Apr 9, 2026 | 394 | — |
| Apr 8, 2026 | 397 | — |
| Apr 7, 2026 | 396 | — |
| Apr 6, 2026 | 382 | — |
| Apr 5, 2026 | 393 | — |
| Apr 4, 2026 | 451 | — |
Station Information
- USGS Site No
- 14209000
- State
- OR
- County
- Clackamas County
- Coordinates
- 45.0712, -121.9406
- Drainage Area
- 124 mi²
- Datum (ft)
- 2,100.0
- HUC Code
- 17090011
Recent Extremes
- Max discharge
-
1,670 cfsDec 19, 2025
- Min discharge
-
262 cfsAug 21, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
Breitenbush River below Breitenbush Hot Springs, ORUnknown20.5 mi · 998 cfs
-
Breitenbush River above French Creek near Detroit, Or.Normal23.9 mi · 339 cfs
-
Sandy River Near Marmot, ORNormal24.6 mi · 697 cfs
-
Little Sandy River Near Bull Run, ORNormal26.3 mi · 37 cfs
-
north Santiam River below Boulder Crk, near Detroit, ORHigh26.4 mi · 724 cfs