Levees will continue to work nicely even when saturated. The thing you have to watch for is a boat bumping a levee hard inorder to brek it when saturated or a large wake.
After some experiences in 1993 floods in Missouri, we post farmers on levees with scoped .30-06s in order to keep boaters from breaking the levees. One guy did it in 1993 and flooded 40,000 acres in Illinois and he is now in the state pen and will never see the sunlight except over a guard tower.
The armed people on the levees are given the authority to shoot to kill and they will. This is very serious stuff.
I hope you’re right..I wish those people all the luck. It’s just that when you build one so quickly, it’s really hard to compact the dirt enough that it holds up. <>
I understand what you’re saying about boats damaging the levees ( that’s why the stopped/slowed barge traffic for some time on the Mississippi..but a levee, over the years, well it hardens...a new one isn’t quite the same...