| Flood Impacts |
| 26.0 | The railroad line north of Van Meter is overtopped. |
| 21.0 | The rangers residence at Walnut Woods State Park is affected. |
| 20.0 | Several buildings in Walnut Woods state park are flooded. The road north of the gage site is overflowed. |
| 19.0 | Flooding of several county roads occurs. |
| 17.0 | Secondary bridges are threatened along Highway 6 east of Adel. |
| 15.0 | Flooding begins in the sand and gravel quarries just west of Interstate 35. |
| 13.0 | There is overflow onto much of the left bank. |
| 12.0 | The river begins minor overflow onto agricultural land, primarily affecting the upstream left bank. |
