| Flood Impacts |
| 26.0 | This is the height of the Waterloo levee design protection. |
| 24.5 | Water reaches the underside of the railroad bridge just upstream of the gage site. |
| 22.0 | Water wells are endangered. |
| 19.0 | Chicago-Illinois Central RR inundated between Cedar Falls and Waterloo, nearly 30,000 acres are flooded. Water is at the underside of RR bridge just upstream from the river gage. |
| 13.5 | The Virden Creek outlet is closed in Waterloo. Depending on the situation the Virden Creek outlet will be closed between 12 and 14 ft. |
| 13.0 | There is minor street flooding in Evansdale along with about 22,000 acres flooded. |
| 11.5 | At this level adjacent lowland agricultural flooding occurs. |
| 11.0 | Exchange and the Cedar River parks in Waterloo are affected. |
| 10.5 | Flooding begins in the Sherwood park area on the northwest edge of Waterloo proper. |
| 10.0 | This is the bankfull stage for most areas of Waterloo. |
| 8.0 | Activation stage for NWR broadcasts. City of Waterloo begins closing storm drains. |
