About this river
Clackamas River is an 8.3 mile river near Northwest Whitewater Adventures in Oregon. Streamflow is measured at the USGS gauge Clackamas River near Oregon City, OR (site 14211010). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
2002 to 2026
Clackamas River typically runs highest in April, at a median 4,170 cfs, and lowest in August, at 821 cfs. The highest flow on record for any single day is 50,000 cfs, in 2009.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 4,120 | 2,910 to 7,250 | |
| February | 3,440 | 2,710 to 5,600 | |
| March | 4,020 | 2,920 to 5,760 | |
| April | 4,170 | 3,360 to 5,310 | |
| May | 3,220 | 2,340 to 4,910 | |
| June | 1,920 | 1,330 to 3,090 | |
| July | 1,030 | 851 to 1,210 | |
| August | 821 | 754 to 935 | |
| September | 886 | 800 to 981 | |
| October | 1,080 | 880 to 1,340 | |
| November | 2,580 | 1,545 to 4,415 | |
| December | 3,500 | 2,180 to 6,370 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 24 years of record. Statistics published by the US Geological Survey for Clackamas River near Oregon City, OR (site 14211010). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
3 mapped launches sit in the mapped area of Clackamas River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
- Barton ParkClackamas RiverPublic
- CarverClackamas RiverPublic
- Riverside ParkClackamas RiverPublic
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Clackamas River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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