Big Sioux River near Brookings

The past week

What floods at each level

• 16 ft

  The bridges on 473rd Avenue and 475th Avenue are overtopped.

• 14 ft

  The water reaches the bottom of the bridges on 473rd Avenue and 475th Avenue.

• 13 ft

  223rd St west of the bridge begins to flood. The bridge 1 mile south of Medary on 471st Avenue is overtopped.

• 12 ft

  475th Avenue and 222nd Street begin to flood.

• 11.5 ft

  473rd Avenue at 221st Street begins to flood.

• 11 ft

  Some farm outbuildings begin to flood.

• 10.5 ft

  473rd Avenue north of the gauge begins to flood.

• 10 ft

  Flooding begins to affect agricultural lands along the right bank of the river.

• 9 ft

  Significant amounts of pasture and farm lands begin flooding on the left bank of the river. The road south of the Brookings water treatment plant is flooded, as is 217th Street between 468th and 469th Avenues.

• 8 ft

  There is some minor overflow of the lowest banks along this stretch of the river.

Highest crests on record

More on Big Sioux River