Floyd River at James
Iowa — Water Level & Flood Stage
Located in Plymouth County, Iowa on the Floyd River. Live water level data from USGS gauge 06600500, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Major Flood
34 ft
Moderate Flood
30 ft
Minor Flood
26 ft
Action Stage
24 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
38 ft
The 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 ft
Flooding begins to affect the town of James.
35.5 ft
The railroad tracks in Sioux City should be closed.
34.5 ft
Approximately 3700 acres of farm land are flooded.
34 ft
The northbound lane of Highway 75 is flooded, and the railroad company begins to shut down operations.
32 ft
Water approaches the railroad tracks and may overtop them in some locations.
31.5 ft
The 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 ft
Outbuildings near the gauge location may begin to flood.
28.5 ft
Approximately 2100 acres of farm land are flooded.
27.5 ft
Approximately 1500 acres of farm land are flooded.
26 ft
Flooding begins to affect the low lying agricultural lands.
24 ft
The lowest banks are overtopped with minor lowland flooding.
18 ft
The Floyd River levee gates in Sioux City begin closing.
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 |
|---|---|---|
| Jun 22, 2024 | 32.39 ft | 40,800 cfs |
| Jun 22, 2024 | 32.39 ft | 40,800 cfs |
| Mar 14, 2019 | 31.48 ft | 33,500 cfs |
| Mar 14, 2019 | 31.48 ft | 33,500 cfs |
| Jun 20, 1983 | 28.85 ft | 18,000 cfs |
About This Gauge
Get Flood Alerts for Floyd 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 Floyd River at James?
The Floyd River at James gauge is maintained by USGS (site 06600500) 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 Floyd River at James?
The NWS-defined flood stage for Floyd River at James is 26 feet. Action stage begins at 24 feet. Moderate flooding starts at 30 feet, and major flooding at 34 feet.
How do I get alerts when Floyd River rises?
Download StormCast free on Google Play, go to River Gauges, and add Floyd River at James to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Floyd River at James gauge located?
The gauge is located in Plymouth County, Iowa at coordinates 42.5764°N, 96.3116°W. USGS site number: 06600500. Data is provided by the U.S. Geological Survey and the National Weather Service.
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On This River
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Source & Notes
Data provided by: Observations courtesy of U.S. Geological Survey, Observations courtesy of U.S. Army Corps of Engineers
- 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.