Big Sioux River above Hawarden
Sioux County, Iowa
The past week
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What floods at each level
- 39 ft
Significant flooding continues in Hawarden with roughly the western half of the town flooded.
- 35 ft
Water overtops 10th St and floods the lower portions of Hawarden south of 10th St and west of Highway 10.
- 34 ft
Several structures near the river off of 10th St in Haward are flooded or surrounded by water.
- 32 ft
Water backs up into the park in Hawarden, and some basements and sewers could begin to have problems.
- 30.5 ft
Iowa Highway 10 begins to flood.
- 30 ft
South Dakota Highway 46 begins to flood north of Hawarden.
- 29.5 ft
County Road 13 begins to flood west of Hawarden. The lowest campsites at the Big Sioux Recreation Area are flooded.
- 27.5 ft
River Road between 304th St and County Road 13 begins to flood.
- 25.5 ft
Water may begin to backup the drainage ditches into the lakes at the Big Sioux Recreation Area in Hawarden.
- 24 ft
Some farm houses on the South Dakota side of the river are isolated by high water.
- 20.5 ft
Agricultural flooding begins on the South Dakota side of the river.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Jun 21, 2024 | 39.92 ft | 164,000 cfs |
| Mar 14, 2019 | 35.2 ft | 58,100 cfs |
| Jun 21, 2018 | 34 ft | 50,800 cfs |
More on Big Sioux River
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