Floyd River at James
Observed Mon, Sep 21, 11:00 PM CDT
- Flood stage
- 26.00 ft
- Record crest
- 32.39 ft2024
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 34.00 ft |
| Moderate flood | 30.00 ft |
| Minor flood | 26.00 ft |
| Action | 24.00 ft |
- 38.00 ftThe levees in and around Sioux City downstream of the gage begin to be overtopped. The bridge at the gauge location on CR 70 is overtopped.
- 36.00 ftFlooding begins to affect the town of James.
- 35.50 ftThe railroad tracks in Sioux City should be closed.
- 34.50 ftApproximately 3700 acres of farm land are flooded.
- 34.00 ftThe northbound lane of Highway 75 is flooded, and the railroad company begins to shut down operations.
- 32.00 ftWater approaches the railroad tracks and may overtop them in some locations.
- 31.50 ftThe lowest portions of County Highway C70 begin to flood. Flooding begins to affect the farm levees, and about 3200 acres of farm land are flooded.
- 30.00 ftOutbuildings near the gauge location may begin to flood.
- 28.50 ftApproximately 2100 acres of farm land are flooded.
- 27.50 ftApproximately 1500 acres of farm land are flooded.
- 26.00 ftFlooding begins to affect the low lying agricultural lands.
- 24.00 ftThe lowest banks are overtopped with minor lowland flooding.
- 18.00 ftThe Floyd River levee gates in Sioux City begin closing.
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 August 26, 2026.
Crest history
90 crests on NOAA’s list since 1935.
| # | Date | Stage |
|---|---|---|
| 1 | June 23, 2024 | 32.39 ft |
| 2 | March 15, 2019 | 31.48 ft |
| 3 | June 21, 1983 | 28.85 ft |
| 4 | March 23, 1979 | 28.19 ft |
| 5 | February 19, 1971 | 28.13 ft |
| 6 | September 22, 2018 | 27.70 ft |
| 7 | May 28, 2013 | 27.59 ft |
| 8 | June 22, 1996 | 25.35 ft |
| 9 | June 8, 1953 | 25.30 ft |
| 10 | June 17, 2014 | 23.15 ft |
| 11 | April 23, 1985 | 22.84 ft |
| 12 | March 29, 1962 | 22.41 ft |
| 13 | March 29, 1993 | 22.34 ft |
| 14 | March 20, 1978 | 21.94 ft |
| 15 | March 29, 1960 | 21.93 ft |
| 16 | April 5, 1969 | 21.54 ft |
| 17 | March 18, 1986 | 21.34 ft |
| 18 | June 21, 1984 | 21.18 ft |
| 19 | February 19, 1994 | 21.00 ft |
| 20 | May 19, 1990 | 20.70 ft |
| 21 | March 12, 1997 | 20.69 ft |
| 22 | March 4, 1973 | 20.46 ft |
| 23 | March 31, 1952 | 20.32 ft |
| 24 | March 16, 2010 | 20.27 ft |
| 25 | April 2, 1965 | 20.20 ft |
Most recent crests
- August 1, 2025: 17.24 ft
- June 23, 2024: 32.39 ft
- February 27, 2023: 13.73 ft
- April 10, 2021: 9.13 ft
- December 30, 2019: 13.18 ft
- March 15, 2019: 31.48 ft
- September 22, 2018: 27.70 ft
- February 14, 2017: 14.53 ft
- June 18, 2016: 16.31 ft
- August 17, 2015: 13.89 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Missouri Basin River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. Gauge reading may be affected by 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.