| 38.0 | The levees in and around Sioux City downstream of the gage begin to be overtopped. | | 36.0 | Flooding begins to affect the town of James. | | 34.5 | Approximately 3700 acres of farm land are flooded. | | 34.0 | The northbound lane of Highway 75 is flooded...and the railroad company begins to shut down operations. | | 31.5 | Flooding begins to affect the farm levees...and about 3200 acres of farm land are flooded. | | 30.0 | County Highway C70 begins to flood. | | 28.5 | Approximately 2100 acres of farm land are flooded. | | 27.5 | Approximately 1500 acres of farm land are flooded. | | 26.0 | Flooding begins to affect the low lying agricultural lands. | | 23.0 | The lowest banks are overtopped with minor lowland flooding. |
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1) 28.85 ft on 06/21/1983
2) 28.19 ft on 03/23/1979
3) 28.13 ft on 02/19/1971
4) 25.35 ft on 06/22/1996
5) 25.30 ft on 06/08/1953
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Low water records are unavailable.
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