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New Orleans Avoids Major Flooding With Dikes Built After Katrina

A $ 14.5 billion dike, valve and pump system largely functioned as planned during Hurricane Ida, sparing New Orleans the catastrophic flooding that devastated the region 16 years ago in the aftermath. of Katrina, officials said. Ida, a destructive Category 4 storm with heavy rains, extreme winds and coastal waves, submerged some levees in communities south of New Orleans and outside of the 350 mile protection ring ( 560 km) completed with federal funding in 2018. But the central area flooded during Hurricane Katrina in 2005, when dikes failed and 80% of the city was underwater, appears to have avoided widespread flooding, suggesting that the improved network of dikes, valves and pumps worked.

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