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SwedenColumbia Slough at Portland water level
Tidal gauge, Columbia Slough, Oregon, United States
Right now
Very high for mid-October
Water level
- Flow
- 442 cfs
History
What this means
The gauge at Columbia Slough at Portland shows 1.75 ft, well above normal for mid-October.
The level has held steady over the past 24 hours. Over the past 30 days it has moved between 0.47 ft and 4.08 ft.
Compared with 5 years of daily readings for this time of year. How to read levels
High water at Columbia Slough at Portland
The National Weather Service splits flooding into minor, moderate and major flood stage, each tied to what starts to go under water at this particular gauge. Minor flooding usually means low roads, parks and farmland; major flooding reaches homes and businesses.
Keep children and dogs well back from the edge, and stay off flooded footpaths and towpaths.
Weather at the gauge
No rain in the last 3 days.
Forecast: Open-Meteo
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Columbia River at VancouverTidal gauge, Columbia River | 1.00 ft | Very low | −0.08 ft | 4.5 mi |
| Willamette River at PortlandTidal gauge, Willamette River | 1.19 ft | Below flood stage | −0.12 ft | 10 mi |
| Fanno Creek at 56th Ave, at PortlandRiver gauge, Fanno Creek | 8.34 ft | Below flood stage | −0.01 ft | 11 mi |
| Crystal Springs Creek at Bybee St, PortlandRiver gauge, Crystal Springs Creek | 14.1 cfs | Normal | −0.4 cfs | 13 mi |
| Johnson Creek at MilwaukieRiver gauge, Johnson Creek | 23.76 ft | Below flood stage | ±0 | 14 mi |
| Tualatin River at Highway 219 near HillsboroRiver gauge, Tualatin River | 119 cfs | Normal | −3.0 cfs | 15 mi |
| Tryon Creek near Lake OswegoRiver gauge, Tryon Creek | 0.5 cfs | Very low | −0.1 cfs | 15 mi |
| Ef Dairy Creek above Murtaugh Creek near Meacham CornerRiver gauge, Ef Dairy Creek | 7.4 cfs | Very low | ±0 | 15 mi |
Questions and answers
What is the water level of Columbia Slough at Portland today?
On Oct 20, 2026, 07:20 PM PDT, the water level was 1.75 ft. Steady over the last 24 hours.
Is Columbia Slough at Portland rising or falling?
Steady over the last 24 hours.
Is the level of Columbia Slough at Portland normal?
Very high for mid-October. Compared with 5 years of daily readings for this time of year.
How often is this data updated?
The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.
Where does this data come from?
The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:14211820(Agency page)- Coordinates
45.63901, -122.76315(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 | 1.75 ft | 2026-10-21 02:20 | Provisional |
| Flow | 442 cfs | 2026-10-21 02:20 | Provisional |
Download
Embed this gauge
Add a live card for this gauge to your website. It updates on its own and links back here.
How to cite
U.S. Geological Survey: Columbia Slough at Portland (usgs:14211820). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/oregon/columbia-slough-at-portland
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