| 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 Mary's. 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. |
weather.gov 
