Oak Grove Fork at Ripplebrook Campground, OR
USGS Site No: 14209250 • Oak Grove Fork • Clackamas County, OR
Oak Grove Fork at Ripplebrook Campground, OR on the Oak Grove Fork is currently at 109 cfs (Normal — 46th percentile for this date) . Gage height: 2.20 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 | 45 | |
| 25th | Low threshold | 97 | |
| 50th (Median) | Normal (median) | 111 | Today: 109 cfs |
| 75th | High threshold | 120 | |
| 95th | Very High threshold | 0 |
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 | 111 | — |
| May 27, 2026 | 110 | — |
| May 26, 2026 | 110 | — |
| May 25, 2026 | 110 | — |
| May 24, 2026 | 110 | — |
| May 23, 2026 | 110 | — |
| May 22, 2026 | 110 | — |
| May 21, 2026 | 110 | — |
| May 20, 2026 | 111 | — |
| May 19, 2026 | 111 | — |
| May 18, 2026 | 112 | — |
| May 17, 2026 | 115 | — |
| May 16, 2026 | 113 | — |
| May 15, 2026 | 111 | — |
| Apr 21, 2026 | 121 | — |
| Apr 20, 2026 | 122 | — |
| Apr 19, 2026 | 123 | — |
| Apr 18, 2026 | 128 | — |
| Apr 17, 2026 | 140 | — |
| Apr 16, 2026 | 151 | — |
| Apr 15, 2026 | 168 | — |
| Apr 14, 2026 | 173 | — |
| Apr 13, 2026 | 184 | — |
| Apr 12, 2026 | 193 | — |
| Apr 11, 2026 | 212 | — |
| Apr 10, 2026 | 215 | — |
| Apr 9, 2026 | 246 | — |
| Apr 8, 2026 | 268 | — |
| Apr 7, 2026 | 269 | — |
| Apr 6, 2026 | 185 | — |
Station Information
- USGS Site No
- 14209250
- State
- OR
- County
- Clackamas County
- Coordinates
- 45.0798, -122.0429
- Drainage Area
- 141 mi²
- Datum (ft)
- 1,420.0
- HUC Code
- 17090011
Recent Extremes
- Max discharge
-
1,400 cfsDec 19, 2025
- Min discharge
-
99 cfsFeb 6, 2026
Computed from the local daily-values archive.
Nearby Gauges
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Breitenbush River below Breitenbush Hot Springs, ORUnknown21.0 mi · 998 cfs
-
Sandy River Near Marmot, ORLow22.6 mi · 697 cfs
-
Breitenbush River above French Creek near Detroit, Or.Low23.0 mi · 339 cfs
-
Little Sandy River Near Bull Run, ORLow24.0 mi · 37 cfs
-
South Fork Bull Run River Near Bull Run, ORLow25.4 mi · 32 cfs