| 16.0 | The bridges on 473rd Avenue and 475th Avenue are overtopped. | | 14.0 | The water reaches the bottom of the bridges on 473rd Avenue and 475th Avenue. | | 13.0 | The bridge 1 mile south of Medary on 471st Avenue is overtopped. | | 11.7 | 473rd Avenue south of the gage begins to flood. | | 11.0 | Some farm outbuildings begin to flood. | | 10.3 | 473rd Avenue north of the gage begins to flood. | | 10.0 | Flooding begins to affect agricultural lands along the right bank of the river. | | 9.0 | 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. | | 8.0 | There is some minor overflow of the lowest banks along this stretch of the river. |
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1) 14.77 ft on 04/09/1969
2) 13.70 ft on 06/22/1984
3) 13.50 ft on 07/04/1993
4) 13.19 ft on 04/08/1997
5) 12.95 ft on 03/29/1962
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Low water records are unavailable.
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