Rock Creek at Hwy 47 Bridge at Vernonia
Highest listed crest 10.22 ftFlood stage 9.5 ft2 crests since 2016
The Rock Creek at Hwy 47 Bridge at Vernonia crested above flood stage 2 times among the 2 crests the National Weather Service lists from 2016 to 2025. The highest, 10.22 ft on November 25, 2016, was minor flooding, 0.72 feet above flood stage.
The gauge
- Highest listed crest
- 10.22 ft
- November 25, 2016; 4,947 cubic feet per second
- Flood stage
- 9.5 ft
- No major stage set
- Crests at major
- 0
- 2 above flood stage
- Most recent flood crest
- December 19, 2025
- 9.59 ft, minor flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Action stage | 6.6 | 0 | — |
| Flood stage (minor) | 9.5 | 2 | Dec 19, 2025 |
Every listed crest
2 crests from 2016 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.
Crests at or above flood stage, by decade
- These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
- Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
Highest crests
| 1 | Nov 25, 2016 | 10.22 | +0.72 | Minor |
| 2 | Dec 19, 2025 | 9.59 | +0.09 | Minor |
Other gauges in Columbia County
| St. Helens | 27.10 ft, Jun 14, 1948 | 5 |
| Vernonia | 19.10 ft, Dec 3, 2007 | 1 |
Columbia County: every hazard · River floods across the country · Oregon
NOAA National Water Prediction Service, gauge RCBO3, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.