Rivers in Oregon
Molalla River near Canby
Below flood stage
8.83ftStage
Observed Sun, Sep 20, 2:00 PM PDT
- Flood stage
- 20.00 ft
- Forecast crest
- 8.82 ftSat, Sep 19, 5:00 PM PDT
- Record crest
- 26.76 ft1964
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 25.00 ft |
| Moderate flood | 22.40 ft |
| Minor flood | 20.00 ft |
| Action | 18.00 ft |
- 25.00 ftExpect major flooding from near the Canby gauge to the Willamette River. Historically, businesses along Hwy 99E in West Canby have been threatened by high water at this point. Flooding in the community of Barlow can be expected at this and higher stages, along with flooding of numerous homes and agricultural land. Channel migration is possible.
- 22.40 ftExpect widespread flooding of agricultural land and secondary roads. Historically, buildings and other structures in the lower sections of the river near the Canby gauge to the confluence with the Pudding River begin to flood at this point. Bank scour along the river is possible.
- 20.00 ftExpect flooding of low-lying agricultural land from Canby downstream to the confluence with the Pudding River. Some secondary roads and a few structures may begin to flood.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | Under 5% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 20, 2026.
Crest history
11 crests on NOAA’s list since 1948.
| # | Date | Stage |
|---|---|---|
| 1 | December 22, 1964 | 26.76 ft |
| 2 | January 21, 1972 | 25.45 ft |
| 3 | November 24, 1960 | 25.00 ft |
| 4 | January 7, 1948 | 24.90 ft |
| 5 | February 7, 1996 | 24.60 ft |
| 6 | January 15, 1974 | 24.43 ft |
| 7 | November 10, 1996 | 24.00 ft |
| 8 | February 11, 1961 | 24.00 ft |
| 9 | December 19, 2025 | 23.48 ft |
| 10 | January 2, 2009 | 23.06 ft |
| 11 | January 20, 2012 | 23.00 ft |
Most recent crests
- December 19, 2025: 23.48 ft
- January 20, 2012: 23.00 ft
- January 2, 2009: 23.06 ft
- November 10, 1996: 24.00 ft
- February 7, 1996: 24.60 ft
- January 15, 1974: 24.43 ft
- January 21, 1972: 25.45 ft
- December 22, 1964: 26.76 ft
- February 11, 1961: 24.00 ft
- November 24, 1960: 25.00 ft
Nearby
Upstream, downstream and the gauges around this one.
- UpstreamMolalla River at Shady Dell near Molalla 2ESE
- Pudding River at Aurora
- Willamette River at Canby Ferry near Canby
- Tualatin River at West Linn
- Willamette River at Falls at Oregon City
- Pudding River at Woodburn
- Willamette River at Falls at Oregon City
- Abernethy Creek at Mompano Reservoir
- Butte Creek at Monitor
What this means
Forecasts by the Northwest River Forecast Center. Forecasts are issued routinely year-round.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.