Big Sioux River above Flandreau

1. 1550.0 ftThe Powwow grounds are completely under water, and flooding reaches onto the football field at the high school.
2. 1549.0 ftWater reaches the bottom of the bridge on Hwy 13
3. 1545.0 ftHighway 13 north of the gauge begins to flood, and the roads leading into the Powwow Grounds are flooded. Also, the areas around 2nd Avenue and Water Street are flooded.
4. 1542.0 ftN. Crescent Street north of the bridge floods, the golf course at the Flandreau Country Club begins to flood, and 230th Street floods near the park.
5. 1541.5 ftWater begins to approach some structures within Flandreau Park
6. 1541.0 ft479th Avenue between 224th and 225th Streets begins to flood.
7. 1540.0 ftWidespread agricultural flooding begins, Flandreau Park begins flooding, the parking lot at the weir dam is flooded, and the road behind the football field at the high school begins to flood.
8. 1537.0 ftWater may begin to cross the road at the north end of the park in Flandreau.

Most recent crests

• July 3, 2025: 1538.4 ft
• June 22, 2024: 1540.0 ft
• April 9, 2023: 1540.7 ft
• April 1, 2020: 1538.3 ft
• September 13, 2019: 1545.3 ft
• March 23, 2019: 1543.5 ft
• April 25, 2018: 1542.4 ft
• March 25, 2011: 1543.8 ft

• UpstreamBig Sioux River at Brookings
• DownstreamBig Sioux River at Egan
• Spring Creek
• Flandreau Creek at Flandreau
• Pipestone Creek at Pipestone
• Big Sioux River at Trent
• Bachelor Creek (SD) at Trent
• North Branch Pipestone Creek at Pipestone

Forecasts by the Missouri Basin River Forecast Center. Forecasts are not available. Only observed stages are available for this point. No forecasts are available for this location Gauge reading may be affected by ice.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service.