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Maps: New Orleans Before & After Hurricane Katrina's Floods

Broadmoor rebuilt to 85% of pre-Katrina population with community centers and gardens, while the Lower Ninth Ward lost two-thirds of its residents and faces ongoing infrastructure deficits.

  • It’s been 20 years since Hurricane Katrina roared ashore on Aug. 29, 2005, and Broadmoor neighborhood, New Orleans, has rebuilt to about 85% of its pre-Katrina population while Lower Ninth Ward, New Orleans, shows empty lots and fewer residents.
  • After Katrina, federal levees failed and roughly 80% of New Orleans flooded, while the Road Home program awarded grants based on pre-storm home value or repair costs, a formula found discriminatory by a U.S. District Court against African-American homeowners.
  • Federal data show Hurricane Katrina caused nearly 1,400 deaths and about $190 billion in damage, while NOAA reported 103,513 housing units flooded at least 2 feet and nearly 20,000 flooded by 7 feet or more.
  • Through the Broadmoor Improvement Association, community institutions like a library and center were restored, while Lower Ninth Ward residents face empty lots and neglected services.
  • At a cost of $14.5 billion, the U.S. Army Corps of Engineers rebuilt defenses, but experts on climate-driven extreme weather stress restoring coastal wetlands and investing in vulnerable areas to prevent future floods.
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The failure in the dikes turned a natural disaster into a human tragedy, submerging much of the city. Despite the persistent challenges, there are signs of recovery, including improvements in the educational system and the rebirth of the musical scene.

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USA Today broke the news in United States on Thursday, August 28, 2025.
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