NEW ORLEANS -- Within a space of 15 hours on Aug. 29, three massive, concrete floodwalls in separate parts of the city suddenly fractured and burst under the weight of surging waters from Hurricane Katrina. The breaches unleashed a wall of water that swept entire buildings from their foundations... -
Investigators Link Levee Failures to Design Flaws
NEW ORLEANS -- Within a space of 15 hours on Aug. 29, three massive, concrete floodwalls in separate parts of the city suddenly fractured and burst under the weight of surging waters from Hurricane Katrina. The breaches unleashed a wall of water that swept entire buildings from their foundations...-
By Joby Warrick and Michael Grunwald