Good thing no one has to depend on them in life-and-death situations.
A friend who lived in the Ninth Ward though explained how he worried more about a hurricane bringing a storm surge in Lake Pontchartrain and collapsing the industrial canal -- which is exactly what Katrina did. One could not miss the canal because it loomed over that section of the city. So why wasn't it maintained and reinforced?
Unfortunately, in the 1980s, the rise of black political machine power led to the election of corrupt and incompetent city officials, who then appointed and hired loyalists who comprehensively looted and mismanaged local government. This wrecked the essential housekeeping of municipal flood protection. The old white political and business elite of New Orleans had limited corruption by keeping it an elite enterprise and paying attention to essentials.