N Santiam River at Mehama, OR
River level and flood forecast · Marion County
The river is 7.4 ft below flood stage (11 ft).
Forecast to fall to 3.3 ft by Mon, Oct 19, 11 PM.
Flow: 1,680 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.
Get flood alerts for this river
An email when the National Weather Service forecasts N Santiam River at Mehama to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 13.5 ft |
| Moderate flood stage | 12.5 ft |
| Flood stage | 11 ft |
| Action stage | 8.6 ft |
| Record crest (January 6, 1923) | 17.5 ft |
What floods at each level
From the National Weather Service, highest first.
- 13.5 ftmajor flood stage, expect widespread flooding along the North Santiam River from Gates downstream to Stayton.
- 11 ftexpect minor flooding of low-lying areas along the North Santiam from Gates downstream to Stayton.
Highest crests on record
- 17.5 ft — January 6, 1923
- 17.5 ft — November 20, 1921
- 16 ft — April 1, 1931
- 15.37 ft — December 28, 1945
- 14.5 ft — March 18, 1932
Recent crests: 12.11 ft (December 19, 2025) · 8.85 ft (April 8, 2019) · 9.83 ft (December 17, 2015) · 10.68 ft (January 19, 2012) · 11.7 ft (January 16, 2011)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MEHO3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.