Clackamas River near Oregon City, OR
River level and flood forecast · Clackamas County
The river is 16.1 ft below flood stage (39 ft).
Forecast to rise to 23.2 ft Mon 11 PM, below the 39 ft flood stage.
Flow: 693 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 8:22 AM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Clackamas River near Oregon City to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 46 ft |
| Moderate flood stage | 42 ft |
| Flood stage | 39 ft |
| Action stage | 38 ft |
| Record crest (December 19, 2025) | 46.56 ft |
What floods at each level
From the National Weather Service, highest first.
- 46 ftexpect major flooding of some residences and buildings along the lower Clackamas River, including the mobile home park just downstream of Carver Bridge.
- 42 ftexpect flooding of parks, agricultural land, and low-lying areas along the lower Clackamas River from the Carver Bridge down to the confluence with the Willamette.
- 39 ftexpect minor flooding of low areas along the lower Clackamas River, including Clackamette Park, the Oregon City shopping center, and some agricultural land downstream of Carver Bridge.
Highest crests on record
- 46.56 ft — December 19, 2025
- 45.41 ft — January 2, 2009
- 42.52 ft — January 17, 2011
- 40.64 ft — January 11, 2006
- 40.61 ft — December 31, 2005
Recent crests: 46.56 ft (December 19, 2025) · 39.53 ft (January 20, 2012) · 42.52 ft (January 17, 2011) · 45.41 ft (January 2, 2009) · 39.35 ft (November 7, 2006)
Up and down the river, and nearby
- UpstreamClackamas River near Estacada, OR
- Willamette River below Falls at Oregon City, OR
- Willamette River above Falls at Oregon City, OR
- Tualatin River at West Linn, OR
- Tryon Creek near Lake Oswego, OR
- Johnson Creek at Milwaukie, OR
- Johnson Creek near Sycamore, OR
- Fanno Creek at Durham, OR
- Willamette River at Portland, OR
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (COCO3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.