| Flood Impacts |
| 33.0 | The business district in LaSalle floods. |
| 31.0 | Some flood damage begins in Ottawa. |
| 30.0 | Water reaches the top of the LaSalle water pumping station pit. |
| 29.0 | Flooding begins in sections of Peru. |
| 27.5 | Hennepin Levee is overtopped at road crossing. |
| 27.0 | Some basement flooding begins to low lying residents in Ottawa. |
| 22.0 | Riverside parking lot at Starved Rock State park floods. |
| 21.0 | low lying agricultural areas from 6 miles upstream to 12 miles downstream are flooded. |
| 20.0 | agricultural areas in LaSalle, Spring Valley, and Peru lowlands are flooded. |
| 17.5 | some flooding of agricultural land begins. |
