| Flood Impacts |
| 40.6 | The 500 year Flood Level is reached |
| 40.0 | This is the RECORD FLOOD LEVEL that was reached on August 2 1993. |
| 38.2 | The 100 year Flood Level is reached |
| 38.0 | Floor of the gage house. |
| 37.5 | This flood level was reached on October 7 1986. |
| 37.2 | The 50 year Flood Level is reached |
| 37.0 | Residences north of St Charles become cut off due to flood waters. |
| 36.5 | This flood level was reached on May 21 1995. |
| 36.0 | Major flooding begins. The levee at the Highway 370 bridge is overtopped. |
| 35.0 | Levee at the Highway 370 bridge is overtopped. |
| 34.5 | Greens Bottom Road floods. This road connects Pittman Hill Road and Jungs Station Road south of 94. |
| 34.0 | Terry Road at Highway 94 (near Matson) floods. |
| 33.9 | MK&T Railroad tracks flood. |
| 33.5 | Highway 94, downstream of St Charles, floods. |
| 33.0 | Up to 7 non-Federal levees are overtopped. (USACE) |
| 30.0 | Moderate flooding begins. Highway 94 at Matson, upstream from St Charles, floods. |
| 25.0 | Flood Stage. Minor flooding begins. The right bank downstream overflows, flooding agricultural bottomland. |
