RIVER GAUGE · S. SANTIAM RIVER
S. Santiam River at Waterloo
Linn County, Oregon
Water level3.32 ft
Flow1,350 cfs
Last readingSep 16, 2026, 5:00 PM UTC (last recorded)
Action10.2 ft19,000 cfs
Minor flood12 ft25,700 cfs
Moderate flood14 ft33,700 cfs
Major flood16 ft42,700 cfs
The past week
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What floods at each level
- 16 ft
expect widespread flooding of low-lying farmland and property from Sweet Home downstream to Lebanon, with some flooding of secondary roads near the South Santiam.
- 12 ft
expect flooding of low-lying areas along the river.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Dec 21, 1964 | 24.5 ft | 95,200 cfs |
| Dec 27, 1945 | 22.85 ft | 74,200 cfs |
| Mar 30, 1931 | 22 ft | 70,000 cfs |
More on S. Santiam River
UpstreamS. Santiam River near Foster ↗
DownstreamSantiam River at Jefferson
Get an alert when S. Santiam River rises
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