| Flood Impacts |
| 32.0 | Flood waters reach the floor of the Highway 61 bridge. |
| 29.7 | This is the RECORD FLOOD LEVEL that was reached on April 21 1973. |
| 29.0 | This flood level was reached on July 1 1993. |
| 27.0 | Major flooding begins. |
| 22.0 | Moderate flooding begins. Left bank begins to flood. |
| 21.0 | 1000 acres are flooded. |
| 20.4 | County Road 341, north of Palmyra, begins to flood. |
| 17.5 | Marion County Rd 341 north of Palmyra inundated. Significant agricultural land flooding...right bank. |
| 17.0 | County Road 333, east of Palmyra, begins to flood. |
| 16.0 | FLOOD STAGE. Minor flooding begins. |
