Big Sioux River near Dell Rapids, SD
Is Big Sioux River near Dell Rapids, SD flooding right now?
Big Sioux River near Dell Rapids, SD measured 3.30 ft on 2026-09-11 00:30:00 UTC. That observation was 8.7 ft below its 12 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
3.30 ft
Streamflow
130 cfs
Minor flooding here begins at 12 ft, with major flooding at 15 ft. The highest crest on record was 16.7 ft on Fri, Sep 13, 2019.
Streamflow outlook
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 10 ft | 6.7 ft below |
| Minor flood | 12 ft | 8.7 ft below |
| Moderate flood | 14 ft | 10.7 ft below |
| Major flood | 15 ft | 11.7 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 16.7 ft | 2019-09-13 |
| 16.47 ft | 1969-04-09 |
| 16.29 ft | 2010-09-25 |
| 16.02 ft | 2007-03-15 |
| 15.69 ft | 2019-03-24 |
Last 7 days
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Skunk Creek near Chester, SD | 6.0 mi | Minnehaha County |
| Willow Creek near Crooks, SD | 11.7 mi | Minnehaha County |
| Silver Creek at Sioux Falls, SD | 13.0 mi | Minnehaha County |
| Skunk Creek near Hartford, SD | 13.1 mi | Minnehaha County |
| Split Rock Creek at Corson, SD | 15.0 mi | Minnehaha County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.