| 27.0 | Floodwaters are level with the top of the federal levee Overflows from the mouth of Lincoln Creek can create a lake effect and affect the readings at the Highway 34 bridge gage on the Blue River during extreme floods. | | 25.0 | Highway 34 crossing needs to be closed. | | 22.8 | Extensive flooding occurs along the mainstem of the Big Blue. | | 22.0 | State Highways 15 and 34 may flood. | | 18.0 | Rural lowlands commence to flood. |
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1) 24.33 ft on 06/16/1982
2) 24.09 ft on 06/19/1983
3) 23.46 ft on 09/04/1977
4) 23.07 ft on 03/15/1971
5) 22.83 ft on 06/16/1967
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1) 0.00 ft on 07/26/2007
2) 0.00 ft on 08/29/1995
3) 0.00 ft on 09/21/1994
4) 0.00 ft on 01/29/1993
5) 0.00 ft on 10/01/1991
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