The part they don't really point out is that the levees that were overtopped were 2 foot piles of gravel and sandbags, used to patch holes in the canal floodwall. They were NOT nearly full height levees.
And the floodwall in question wasn't overtopped initially -- they are now reporting that a massive chunk of it is gone because a drifting barge riding the storm surge hit the wall and destroyed it. It was also by far the biggest breech and the largest source of water.
Looking like bad luck mostly.
In any case they've already repaired what needed to be and have managed to pump out quite a bit of what came in. The areas that reflooded were already flooded so badly for so long I doubt this is going to have much financial impact -- most of those houses are losses by now anyway.
But...
And the floodwall in question wasn't overtopped initially -- they are now reporting that a massive chunk of it is gone because a drifting barge riding the storm surge hit the wall and destroyed it. It was also by far the biggest breech and the largest source of water.
Looking like bad luck mostly.
In any case they've already repaired what needed to be and have managed to pump out quite a bit of what came in. The areas that reflooded were already flooded so badly for so long I doubt this is going to have much financial impact -- most of those houses are losses by now anyway.