Rivers in Idaho
St Joe River at Calder
Below flood stage
5.26ftStage
Observed Thu, Sep 24, 8:30 PM PDT
- Flood stage
- 13.00 ft
- Forecast crest
- 5.31 ftSat, Sep 26, 5:00 PM PDT
- Record crest
- 18.20 ft1938
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 16.00 ft |
| Moderate flood | 15.00 ft |
| Minor flood | 13.00 ft |
| Action | 12.00 ft |
- 13.00 ftBear Creek will begin to back up from the St Joe River and may start to spill into the town of Calder, flooding the low spots in yards, roads and parking lots.
- 11.00 ftFlooding in riverside RV areas near Meadow and Oxbow Lanes downstream of Calder to the Cutthroat Resort.
- 10.00 ftWater may cover the low spots on Calder Road between the St Joe River Road and the Calder Bridge.
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 24, 2026.
Crest history
102 crests on NOAA’s list since 1911.
| # | Date | Stage |
|---|---|---|
| 1 | April 18, 1938 | 18.20 ft |
| 2 | December 23, 1933 | 17.50 ft |
| 3 | February 10, 2017 | 17.04 ft |
| 4 | December 2, 1975 | 16.04 ft |
| 5 | January 16, 1974 | 15.87 ft |
| 6 | January 15, 1984 | 15.40 ft |
| 7 | February 9, 1996 | 15.22 ft |
| 8 | January 6, 1969 | 15.21 ft |
| 9 | February 4, 1925 | 15.20 ft |
| 10 | December 23, 1964 | 15.04 ft |
| 11 | November 30, 1995 | 14.61 ft |
| 12 | November 25, 1990 | 14.46 ft |
| 13 | December 26, 1980 | 14.17 ft |
| 14 | February 21, 1982 | 14.10 ft |
| 15 | May 28, 1948 | 14.04 ft |
| 16 | December 15, 1946 | 13.98 ft |
| 17 | May 11, 1976 | 13.84 ft |
| 18 | May 15, 1979 | 13.72 ft |
| 19 | May 21, 1956 | 13.66 ft |
| 20 | April 12, 1936 | 13.65 ft |
| 21 | May 19, 1954 | 13.60 ft |
| 22 | June 1, 1972 | 13.53 ft |
| 23 | May 13, 1971 | 13.49 ft |
| 24 | March 19, 2017 | 13.46 ft |
| 25 | March 29, 1934 | 13.43 ft |
Most recent crests
- April 15, 2024: 9.47 ft
- May 3, 2023: 12.49 ft
- May 7, 2022: 12.57 ft
- May 2, 2021: 10.46 ft
- May 1, 2020: 11.21 ft
- May 8, 2019: 11.21 ft
- May 7, 2018: 12.64 ft
- March 19, 2017: 13.46 ft
- March 16, 2017: 13.10 ft
- February 10, 2017: 17.04 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Northwest River Forecast Center. Forecasts are issued routinely year-round. Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.
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.