In the Midwest, the Corp of Engineers mandates you have to leave after the flood wipes you out.
Unless you are a large town, or rich. Then the money keeps flowing.
The madness that is our disaster management policy is a sore point for me.
There was a neighborhood in Pittsburgh called Ansonia Place. Just a handful of streets alongside a creek, down in a valley. It would routinely flood out every other year. Eventually the city realized that it would be more cost effective to just buy everyone out and bulldoze it.