I just checked the map, and my niece's house is in that area that is in danger of flooding now. She's a mile or two east of the New Orleans Country Club and the Metairie Cemetery, two place that were mentioned in the news reports has beginning to flood because of those levees having broken.
They're talking about flying in sandbags and positioning them using helicopters. Maybe they'll be able to stop the flooding.
At this point, cleaning up the flood that's already there is going to be a massive undertaking, though, even if they stave off worse flooding.