Big Sioux River near Richland
Highest listed crest 1,128.70 ftFlood stage 1,117.0 ft9 crests since 2014
The Big Sioux River near Richland crested at major flood stage 5 times among the 9 crests the National Weather Service lists from 2014 to 2025. The highest, 1,128.70 ft on June 23, 2024, was major flooding, 11.70 feet above flood stage. 15 other gauges on the Big Sioux River crested above flood stage within a week of it, 5 at their own highest listed crest.
The gauge
- Highest listed crest
- 1,128.70 ft
- June 23, 2024
- Flood stage
- 1,117.0 ft
- Major flooding from 1,123.0 ft
- Crests at major
- 5
- 49th of 203 gauges in Iowa
- Most recent flood crest
- June 23, 2024
- 1,128.70 ft, major flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Action stage | 1,116.0 | 0 | — |
| Flood stage (minor) | 1,117.0 | 3 | Apr 15, 2023 |
| Moderate flood stage | 1,119.0 | 0 | — |
| Major flood stage | 1,123.0 | 5 | Jun 23, 2024 |
Every listed crest
9 crests from 2014 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.
Crests at or above flood stage, by decade
- These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
- Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
Highest crests
| 1 | Jun 23, 2024 | 1,128.70 | +11.70 | Major |
| 2 | Jun 18, 2014 | 1,125.63 | +8.63 | Major |
| 3 | Mar 16, 2019 | 1,124.50 | +7.50 | Major |
| 4 | Jun 24, 2018 | 1,124.40 | +7.40 | Major |
| 5 | Sep 17, 2019 | 1,123.51 | +6.51 | Major |
| 6 | Apr 1, 2018 | 1,118.80 | +1.80 | Minor |
| 7 | Apr 1, 2020 | 1,118.67 | +1.67 | Minor |
| 8 | Apr 15, 2023 | 1,118.36 | +1.36 | Minor |
| 9 | Jul 6, 2025 | 1,111.57 | −5.43 | Below flood stage |
The worst floods along the Big Sioux River
For this gauge's highest crests, the other gauges on the Big Sioux River that crested above flood stage within a week.
June 23, 2024: 1,128.70 ft here, major flooding
- BrandonSD · Jun 22, 2024 · 1,312.32 ft · Major
- CantonSD · Jun 22, 2024 · 1,248.35 ft · Major · its highest
- Sioux CitySD · Jun 23, 2024 · 44.90 ft · Major · its highest
- JeffersonIA · Jun 24, 2024 · 44.50 ft · Major · its highest
- HawardenSD · Jun 22, 2024 · 39.92 ft · Major · its highest
- AkronIA · Jun 22, 2024 · 27.35 ft · Major · its highest
- EganSD · Jun 23, 2024 · 1,519.36 ft · Moderate
- TrentSD · Jun 22, 2024 · 1,497.33 ft · Moderate
- Sioux Falls N. Cliff AvenueSD · Jun 23, 2024 · 22.62 ft · Moderate
- Sioux Falls Western AvenueSD · Jun 22, 2024 · 15.44 ft · Moderate
June 18, 2014: 1,125.63 ft here, major flooding
- CantonSD · Jun 16, 2014 · 1,246.72 ft · Major
- AkronIA · Jun 18, 2014 · 25.46 ft · Major
- Sioux CitySD · Jun 20, 2014 · 37.70 ft · Minor
- Sioux Falls N. Cliff AvenueSD · Jun 17, 2014 · 17.63 ft · Minor
- Sioux Falls Western AvenueSD · Jun 16, 2014 · 10.73 ft · Minor
- FlorenceSD · Jun 19, 2014 · 8.01 ft · Minor
March 16, 2019: 1,124.50 ft here, major flooding
- EganSD · Mar 23, 2019 · 1,522.48 ft · Major
- JeffersonIA · Mar 17, 2019 · 40.42 ft · Major
- HawardenSD · Mar 15, 2019 · 35.20 ft · Major
- AkronIA · Mar 16, 2019 · 23.94 ft · Major
- Sioux Falls Western AvenueSD · Mar 14, 2019 · 16.90 ft · Major · its highest
- FlandreauSD · Mar 23, 2019 · 1,543.53 ft · Moderate
- BrandonSD · Mar 15, 2019 · 1,310.85 ft · Moderate
- CantonSD · Mar 15, 2019 · 1,244.68 ft · Moderate
- FairviewSD · Mar 15, 2019 · 1,212.63 ft · Moderate
- Sioux CitySD · Mar 17, 2019 · 37.46 ft · Minor
Gauges on the Big Sioux River
Flood gauges sharing the river's name, linked within 80 miles of one another.
| Canton | SD | 1,248.35 ft, Jun 22, 2024 | 3 |
| Dell Rapids | SD | 1,490.00 ft, Sep 13, 2019 | 2 |
| Flandreau | SD | 1,545.29 ft, Sep 13, 2019 | 1 |
| Hawarden | SD | 39.92 ft, Jun 22, 2024 | 4 |
| Akron | IA | 27.35 ft, Jun 22, 2024 | 24 |
| Fairview | SD | 1,213.14 ft, Sep 14, 2019 | 0 |
| Lake Kampeska | SD | 22.40 ft, Mar 15, 2010 | 0 |
| Lake Poinsett Inlet/Outlet | SD | 1,657.60 ft, Apr 5, 2011 | 2 |
| Sioux City | SD | 44.90 ft, Jun 23, 2024 | 1 |
| Sioux Falls I-90 | SD | 18.91 ft, Sep 14, 2019 | 1 |
| Sioux Falls N. Cliff Avenue | SD | 26.08 ft, Sep 14, 2019 | 0 |
| Sioux Falls Western Avenue | SD | 16.90 ft, Mar 14, 2019 | 4 |
| Trent | SD | 1,501.42 ft, Sep 13, 2019 | 2 |
| Watertown Broadway Avenue | SD | 13.67 ft, Apr 6, 1997 | 1 |
| Watertown Sioux Conifer Road | SD | 11.18 ft, Apr 13, 2023 | 0 |
| Watertown | SD | 13.13 ft, Apr 2, 1997 | 5 |
| Brandon | SD | 1,313.53 ft, Sep 14, 2019 | 2 |
| Brookings | SD | 14.77 ft, Apr 9, 1969 | 0 |
| Bruce | SD | 12.16 ft, Mar 28, 2011 | 0 |
| Castlewood | SD | 13.19 ft, Apr 7, 1997 | 0 |
| Dell Rapids | SD | 16.70 ft, Sep 13, 2019 | 10 |
| Egan | SD | 1,524.20 ft, Sep 12, 2019 | 2 |
| Estelline | SD | 1,647.03 ft, Jun 30, 2025 | 0 |
| Florence | SD | 9.70 ft, Apr 13, 2023 | 6 |
| Jefferson | IA | 44.50 ft, Jun 24, 2024 | 2 |
| Richland this gauge | IA | 1,128.70 ft, Jun 23, 2024 | 5 |
| Watertown | SD | 12.33 ft, Apr 7, 2001 | 2 |
Other gauges in Plymouth County
Plymouth County: every hazard · River floods across the country · Iowa
NOAA National Water Prediction Service, gauge BSRS2, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.