| 36.6 | Prairie Island power plant may go to an emergency state to prepare for flooding. | | 29.5 | Prairie Island power plant may go to an alert state to perepare for flooding. | | 22.2 | Prairie Island power plant begins preparations for an unusual event. | | 20.5 | Highway 10 at Point Douglas may be closed due to high water. | | 20.4 | Lock and dam 2 may end operations. | | 20.0 | Flooding begins at Point Douglas. | | 19.0 | Flood waters begin to affect eastern portions of Hastings. |
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1) 25.90 ft on 04/17/1965
2) 24.30 ft on 04/16/1969
3) 22.00 ft on 04/29/2001
4) 21.60 ft on 04/17/2001
5) 21.30 ft on 04/13/1997
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1) 4.05 ft on 01/06/1976
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