Oak Grove Fork at Ripplebrook Campground, OR

USGS Site No: 14209250Oak 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

109
CFS Discharge
2.20
Gage Height (ft)
Normal
Flow Condition
N/A
Flood Status

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.

291 145 0 cfs Apr 6 May 28
10th–95th historical Day-of-year median Recent discharge

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
Coordinates
45.0798, -122.0429
Drainage Area
141 mi²
Datum (ft)
1,420.0
HUC Code
17090011
View on USGS NWIS →

Recent Extremes

Max discharge
1,400 cfs
Dec 19, 2025
Min discharge
99 cfs
Feb 6, 2026

Computed from the local daily-values archive.