Levees can't save New Orleans from floods: report

HOUSTON (Reuters) – Bigger, higher and stronger levees cannot save New Orleans from the worst floods and the city remains vulnerable to a repeat of Hurricane Katrina, the National Academy of Sciences said on Friday.

New Orleans had the flood protection of a 350-mile network of levees, I-walls and T-walls ringing the city when Hurricane Katrina slammed ashore on August 29, 2005. The levees broke, flooding 80 percent of the city.

The hurricane killed about 1,500 people along the U.S. Gulf Coast and caused $80 billion in damages, making it the costliest U.S. natural disaster.

As Katrina demonstrated, “the risks of inundation and flooding never can be fully eliminated by protective structures no matter how large or sturdy those structures may be,” said the report by the National Academy of Engineering and the National Research Council.

Reuters