In June 2008, a record flood event exceeded the once - in -500-year flood level by more than 5 feet, causing $ 5 to $ 6 billion in damages from flooding, or more than $ 40,000 per resident of the city of Cedar Rapids.85 The flood inundated much of the downtown, damaging more than 4,000 structures, including 80 % of government offices, and displacing 25,000 people.86 The record flood at Cedar Rapids was the result of low reservoir capacity and extreme rainfall on
soil already
saturated from unusually wet
conditions.