I think the worse is yet to come as people start finding out that their homes and property aren't covered by insurance. I bet 1 in 20 people have flood insurance since nothing like this has even been thought possible. Many people outside the 500 year flood mark still got hit and they likely never even thought that flood insurance was available.
CR is looking at 3/4 of a billion alone. Add in Iowa City and you are easily over a billion in lost homes, cars, businesses, ect.
And that doesn't include any "soft" costs like lost production and time off from work, ect.
It's just hard to compare this to a hurricane because it just sort of snuck up quietly. A hurricane, tornado, or earthquake are fairly quick, high powered natural disasters that just level almost immediately.
This was just a silent assassin that just kept creeping along inching up by the hour. Nothing flashy. Nothing that makes headlines. Just 5 days later you find your house or business 7 feet deep in water.