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SwedenSouth Santiam River at Waterloo water level
River gauge, South Santiam River, Oregon, United States
Right now
Below flood stage
Water level
- Flow
- 1,150 cfs
- Water temperature
- 58 °F
History
The forecast expects the river to fall to 3.11 ft by Sunday, October 18 at 05:00 PM. Issued Sunday, October 18 at 09:05 AM by NOAA National Weather Service.
What this means
The gauge at South Santiam River at Waterloo reads 3.15 ft, a normal level.
It is 8.85 ft below the flood stage of 12.00 ft.
The level has held steady over the past 24 hours. The forecast expects the river to fall to 3.11 ft by Sunday, October 18 at 05:00 PM. Over the past 30 days it has moved between 3.12 ft and 3.29 ft.
The sensor also reports a water temperature of 58 °F.
Judged against the official flood stage for this gauge. How to read levels
Key numbers
- Highest on record
- 24.50 ftDecember 22, 1964
- Forecast peak
- 3.13 ftSunday, October 18 at 11:00 AM
What the stage means on the water
A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.
The National Weather Service puts flood stage for this gauge at 12.00 ft, still 8.85 ft away.
What happens at each level
- 16.00 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.
- 12.00 ft
- expect flooding of low-lying areas along the river.
- 3.15 ft
- Right now
Impact statements from the U.S. National Weather Service.
Highest crests on record
| Rank | Level | Date |
|---|---|---|
| 1 | 24.50 ft | December 22, 1964 |
| 2 | 22.85 ft | December 28, 1945 |
| 3 | 22.00 ft | March 31, 1931 |
| 4 | 21.10 ft | December 11, 1956 |
| 5 | 21.08 ft | February 10, 1961 |
| 6 | 20.20 ft | November 22, 1953 |
| 7 | 20.10 ft | January 1, 1943 |
| 8 | 19.60 ft | December 21, 1955 |
| 9 | 19.40 ft | January 18, 1954 |
| 10 | 19.40 ft | February 21, 1927 |
Weather at the gauge
The forecast is not available right now.
Map
Other gauges on the South Santiam River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| South Santiam River below CascadiaRiver gauge, South Santiam River | 30.8 cfs | Very low | ±0 | 18 mi |
| South Santiam River near FosterRiver gauge, South Santiam River | 1,140 cfs | Low | +20.0 cfs | 9 mi |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Lebanon Santiam Canal near LebanonCanal gauge, Lebanon Santiam Canal | 75.0 cfs | Normal | ±0 | 2.3 mi |
| Foster Dam Tailwater at FosterRiver gauge, Foster Dam Tailwater | 526.07 ft | Normal | −0.05 ft | 9 mi |
| Wiley Creek near FosterRiver gauge, Wiley Creek | 6.9 cfs | Low | +0.3 cfs | 13 mi |
| Middle Santiam River below Green Peter Dam near FosterRiver gauge, Middle Santiam River | 700.58 ft | Normal | +0.04 ft | 14 mi |
| Green Peter Dam Tailwater near FosterRiver gauge, Green Peter Dam Tailwater | 696.64 ft | Normal | +0.01 ft | 14 mi |
| Thomas Creek near ScioRiver gauge, Thomas Creek | 3.83 ft | Below flood stage | ±0 | 15 mi |
| North Santiam River at Greens Bridge, near JeffersonRiver gauge, North Santiam River | 1,160 cfs | Very low | −50.0 cfs | 16 mi |
| Willamette River at AlbanyRiver gauge, Willamette River | 3.05 ft | Below flood stage | +0.08 ft | 17 mi |
Questions and answers
What is flood stage for the South Santiam River at Waterloo?
The official flood stage is 12.00 ft. The level is currently 8.85 ft below it.
Is gage height the same as water depth?
No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.
What is the water level of South Santiam River at Waterloo today?
On Oct 18, 2026, 09:45 AM PDT, the water level was 3.15 ft. Steady over the last 24 hours.
Is South Santiam River at Waterloo rising or falling?
Steady over the last 24 hours.
Is the level of South Santiam River at Waterloo normal?
Below flood stage. Judged against the official flood stage for this gauge.
What is the highest water level ever recorded at South Santiam River at Waterloo?
The highest level on record is 24.50 ft on December 22, 1964.
Is South Santiam River at Waterloo expected to rise?
The forecast expects the river to fall to 3.11 ft by Sunday, October 18 at 05:00 PM.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:14187500(Agency page)- Coordinates
44.49846, -122.82342(WGS84)- Vertical datum
- NGVD29
- Update interval
- every 15 minutes
- Licence
- Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision
Published series
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Water level | 3.15 ft | 2026-10-18 16:45 | Provisional |
| Flow | 1,150 cfs | 2026-10-18 16:45 | Provisional |
| Water temperature | 58 °F | 2026-10-18 16:45 | Provisional |
Download
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How to cite
U.S. Geological Survey: South Santiam River at Waterloo (usgs:14187500). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/oregon/south-santiam-river-at-waterloo
How we check values
Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer