Major Flood
40 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
35 ft
Minor Flood
27 ft
Action Stage
25 ft
What Floods at Each Level
45 ft
major flooding of homes and industrial areas in Gladstone and West Linn has historically occurred at this and higher stages. Also expect flooding of the shopping district and other businesses along the Willamette River in Oregon City adjacent to I-205.
40 ft
major flood stage, numerous homes are threatened with flooding in the vicinity of West Linn and Marylhurst along River St, and also in the Oak Grove area. Expect widespread flooding of lowland areas, parks, roads and a few structures along the Willamette River from Oregon City to Portland.
35 ft
moderate flood stage, expect widespread flooding of low lying areas along the Willamette River from Oregon City to Portland. Clackamette Park at the confluence of the Clackamas and Willamette Rivers is flooded at this and higher stages.
32 ft
islands on the Willamette River between Oregon City and downtown Portland begin to flood. Lowland flooding along the river becomes more widespread at this level.
27 ft
flooding begins in low lying areas along the Willamette River from Oregon City downstream to Lake Oswego. The areas mainly impacted at this level historically have been lows areas in Clackamette Park in Oregon City and River Green Golf Course and Dahl Park in Gladstone.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Feb 4, 1890 | 50.5 ft | -9,999 cfs |
| Dec 24, 1964 | 48.1 ft | — |
| Dec 4, 1861 | 48 ft | — |
About This Gauge
USGS Site
NWS LID
ORCO3
River
Willamette River
County
Clackamas, OR
Coordinates
45.3579°N, 122.6098°W
Get Flood Alerts for Willamette River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Willamette River below Falls at Oregon City?
The Willamette River below Falls at Oregon City gauge is maintained by USGS (site 14207770) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Willamette River below Falls at Oregon City?
The NWS-defined flood stage for Willamette River below Falls at Oregon City is 27 feet. Action stage begins at 25 feet. Moderate flooding starts at 35 feet, and major flooding at 40 feet.
How do I get alerts when Willamette River rises?
Download StormCast free on Google Play, go to River Gauges, and add Willamette River below Falls at Oregon City to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Willamette River below Falls at Oregon City gauge located?
The gauge is located in Clackamas County, Oregon at coordinates 45.3579°N, 122.6098°W. USGS site number: 14207770. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey