While I'm a fan of modeling, any number that is shared needs to come with a very big asterisk attached to it as more of a guess. One commercial insurance modeler is estimating 110,000 home damaged along with 100,000 vehicles. The grand total they are projecting is $15 billion.
See this story for more information: Louisiana Flood of 2016 seen costing up to $15 billion, mostly uninsured.
The key word above is "uninsured." It will be interesting to see what the administration or Congress might do. It is an election year after all. Is Louisiana a "swing state?"
Claire Rubin shared the link.