17' - There is extensive inundation and damage with many primary roads and bridges closed. Many people are to be evacuated.
15' - The 100 year flood level is exceeded. Highway 1050 S in Adams County east of Geneva begins to flood.
14' - Secondary roads are blocked. Roads near the east side of Geneva begin to flood. Some evacuations may be required and property needs to be transferred to higher ground.
12' - The flooding of county roads begin.
11' - Agricultural flooding begins. Low lands east of Geneva begin to flood.