Big Sioux River at Watertown Broadway Avenue
Codington County, South Dakota
The past week
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What floods at each level
- 18 ft
The bridge on Hwy 81 is overtopped.
- 17.5 ft
The Broadway Avenue bridge at the gauge is overtopped.
- 17 ft
4th Avenue SW begins to flood near Kampeska Blvd.
- 16.5 ft
Broadway Avenue begins to flood.
- 16 ft
The levees on the north side of the river upstream of the gauge are overtopped, and the gas station will begin flooding.
- 15 ft
The railroad upstream of Thunder Road begins to flood, and water reaches the bottom of the bridges on Broadway Ave and 4th Ave SW.
- 14 ft
The levee on the south side of the river upstream from the gauge is overtopped.
- 11 ft
The lower banks on both sides of the river downstream of the gauge are overtopped, and the lower lying areas along Kampeska Blvd, 4th Ave SW, and Riverside Park on Kemp Ave begin to flood.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Apr 5, 1997 | 13.67 ft | 2,760 cfs |
| Apr 6, 2001 | 12.71 ft | 2,020 cfs |
| Apr 11, 2011 | 11.97 ft | 1,350 cfs |
More on Big Sioux River
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