| 50.0 | Ste. Genevieve, Ft. Chartess, Ivy Landing, and Kaskaskia Island levees overtopped. | | 49.7 | This is the RECORD FLOOD LEVEL that was reached on August 7 1993. | | 49.4 | Stringtown and Prairie DuRocher levees overtopped. | | 49.0 | Degognia and Fountain Bluff Levee overtopped. | | 47.5 | Mill on IL Route 3 floods. | | 47.0 | Menard Correctional Facility floods. | | 45.0 | Highway 51 bridge closes as the highway floods on the Missouri side and the waterworks pumphouse floods. | | 44.0 | Balwin Water Treatment Plant is Flooded | | 43.3 | This flood level was reached on April 30 1973. | | 42.0 | Damage begins at the Menard Prison Water Plant. | | 40.8 | Main Street in Evansville inundated. | | 39.0 | Illinois Highway 3 south of Chester and Highway 155 near Prairie du Rocher floods. | | 38.5 | Highway J is closed just west of Highway 61 between Ste. Genevieve and St. Marys. | | 38.4 | Serious flooding begins in St Marys. Also at this level IL Route 3 at levee east of Cora inundated. | | 38.0 | Major flooding begins. Also at this level... Fonda Street in Chester... IL Route 3 in Rockwood and Rockwood homes are flooded. | | 37.0 | Union Pacific property along Water Street begins to flood. | | 36.5 | Chester water intake house is flooded... damage begins to occur to 4 homes and administration buildings at Menard State Prison. Also at this level Route 3 at Rockwood Closes. Prairie DuRocher pump station damaged and road to Kaskaskia Lock inundated. | | 36.0 | Water works pumphouse is threatened by flood waters. Highway 61 is closed at the bend at St. Marys and a detour is set up through town. | | 35.5 | In Perry County, Highway C is closed between County Roads 352 and 354 (the Levee Road). | | 35.0 | U.S. Highway 61 in Ste. Genevieve County begins to flood. Also, Ste. Genevieve flood gates are closed at this level. | | 33.5 | Water Street in Chester is inundated | | 33.0 | Businesses along the river front begin to flood. | | 32.0 | In Perry County, Highway E is closed between County Road 322 and Levee Road (County Road 354). Also, Highway A is closed between County Roads 448 and 460 in southern Perry County. | | 30.0 | Moderate flooding begins. | | 28.0 | Unleveed islands near Chester and the prison farm floods. | | 27.0 | Flood Stage. Unprotected farmland on right bank begins to flood. | | 25.0 | Degognia Fountain Bluff Levee gates are closed. |
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1) 49.74 ft on 08/07/1993
2) 44.00 ft on 05/23/1995
3) 43.32 ft on 04/30/1973
4) 41.02 ft on 05/05/1983
5) 40.58 ft on 05/17/2002
6) 39.83 ft on 06/30/1844
7) 39.79 ft on 04/16/1979
8) 39.54 ft on 10/10/1986
9) 39.50 ft on 12/09/1982
10) 39.46 ft on 07/01/2008
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1) 0.00 ft on 12/25/1999
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