| 22.0 | Water reaches to near the top of the levee of the south bank at Marengo. | | 18.0 | Water breaches the mill race dikes near Middle Amana affecting the Amana Refrigeration parking lot and southeast exterior of the plant. | | 16.0 | Water affects agricultural land along the river. Water is several feet deep in places. | | 14.0 | Water affects low-lying agricultural land along the river. | | 11.0 | Water affects the lowest agricultural land along the river. |
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1) 21.38 ft on 06/12/2008
2) 20.31 ft on 07/19/1993
3) 20.26 ft on 07/12/1993
4) 19.79 ft on 07/12/1969
5) 19.57 ft on 08/19/1993
6) 19.40 ft on 03/19/1979
7) 19.21 ft on 03/31/1960
8) 18.92 ft on 06/30/1998
9) 18.82 ft on 03/24/1975
10) 18.82 ft on 05/19/1974
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1) 0.00 ft on 01/29/1977
2) 5.58 ft on 10/24/2003
3) 5.73 ft on 11/26/2005
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