Note the "armored" shoreline. That's really rich LOL.
Why is it rich? None of those levees or walls failed, only the ones inside the city itself. I don't even know what those are for, except to deposit rainwater pumped out the land below sea (and more importantly lake) level into the lake.
Now that would be ironic, if what flooded the city was the very structure designed to prevent flooding, by allowing the rainwater to be pumped into the lake, the lake that now covers much of the city.