Downtown will be iffy. The Warehouse District was in bad shape already, and it'll get worse. The Ninth Ward and St Bernard's Parish will be obliterated.
The city's drainage and sewer systems are atrocious under the best of circumstances. Worst of all, the fucking pumps don't even work properly, because they were apparently put it by Bush cronies Conservatives want live babies so they can raise them to be dead soldiers. - George Carlin