Santiam River at Jefferson, OR
River level and flood forecast · Marion County
The river is 12.0 ft below flood stage (15 ft).
Forecast to fall to 2.7 ft by Mon, Oct 19, 5 PM.
Flow: 2,620 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 8:25 AM. Forecasts change as rain falls and as upstream water arrives.
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An email when the National Weather Service forecasts Santiam River at Jefferson to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 23 ft |
| Moderate flood stage | 19 ft |
| Flood stage | 15 ft |
| Action stage | 13 ft |
| Record crest (December 22, 1964) | 24.22 ft |
What floods at each level
From the National Weather Service, highest first.
- 23 ftflooding in Jefferson and the highway east of the river is possible, in addition to widespread flooding of lowlands and low lying roadways.
- 19 ftexpect widespread flooding of lowlands and agricultural areas, along with flooding of some secondary roads.
- 15 ftexpect widespread lowland and agricultural flooding. Some secondary roads in low lying areas will be flooded at this level.
- 13 ftthe river is at bankfull level at this point. There may be some areas where water is spilling over the banks near Jefferson.
Highest crests on record
- 24.22 ft — December 22, 1964
- 23.25 ft — February 7, 1996
- 22.55 ft — December 29, 1945
- 21.8 ft — January 7, 1948
- 21.3 ft — December 15, 1946
Recent crests: 17.79 ft (December 19, 2025) · 15.8 ft (April 9, 2019) · 18.35 ft (January 20, 2012) · 15.38 ft (January 17, 2011) · 15.81 ft (January 3, 2009)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (JFFO3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.