| 24.0 | Flood problems begin. Water backs up into oil well south and east of town of Williston. Game Management areas flood. City of Williston will not flood. | | 22.0 | Low lying farmland floods. City of Williston does not flood. | | 20.0 | Ditches in the direct vicinity of river will fill and land near the south banks will flood. |
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1) 28.00 ft on 04/01/1912
2) 27.15 ft on 07/14/1975
3) 26.60 ft on 03/08/1994
4) 26.46 ft on 03/26/1978
5) 26.10 ft on 06/26/1997
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1) 7.80 ft on 11/02/1966
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