Water spills over a levee along the Inner Harbor Navigational Canal in the aftermath of Hurricane Katrina on August 30, 2005, in New Orleans. Katrina struck the Gulf Coast on August 29, 2005. After levees and flood walls protecting New Orleans failed, much of the city was underwater.
Photos: Remembering Hurricane Katrina
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A helicopter rescues a family from a rooftop on September 1, 2005. Floodwaters from Hurricane Katrina stranded thousands of New Orleans residents.
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Evacuees crowd the floor of the Astrodome in Houston on September 2, 2005. The facility housed 15,000 refugees who fled the destruction of Hurricane Katrina.
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A neighborhood east of downtown New Orleans remains flooded on August 30, 2005.
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A woman gets carried out of floodwaters after being trapped in her home in Orleans Parish, Louisiana, on August 30, 2005.
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Police watch over prisoners from Orleans Parish Prison who were evacuated to a highway on September 1, 2005.
Photos: Remembering Hurricane Katrina
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Daryl Thompson and his daughter Dejanae, 3 months old, wait with other displaced residents on a highway to catch a ride out of New Orleans on August 31, 2005. Thousands were looking for a place to go after leaving the Superdome shelter.
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Residents of Saucier, Mississippi, line up to get gas on August 31, 2005.
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Hanging from her roof, a woman waits to be rescued by New Orleans Fire Department workers on August 29, 2005.
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People seek high ground on Interstate 90 as a helicopter prepares to land at the Superdome in New Orleans on August 31, 2005.
Photos: Remembering Hurricane Katrina
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A woman cries after returning to her house and business, destroyed by Hurricane Katrina, on August 30, 2005, in Biloxi, Mississippi.
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People search for their belongings among debris washed up on the beach in Biloxi on August 30, 2005.
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People try to get to higher ground as water rises on August 30, 2005, in New Orleans.
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People wade through high water in front of the Superdome in New Orleans on August 30, 2005.
Photos: Remembering Hurricane Katrina
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President George W. Bush looks out the window of Air Force One on August 31, 2005, as he flies over New Orleans. Returning to Washington from Texas, Air Force One descended to about 5,000 feet to allow Bush to view some of the worst damage from Hurricane Katrina.
Insurance companies have paid an estimated $41.1 billion on 1.7 million different claims for damage to vehicles, homes, and businesses in six states. 63% of the losses occurred in Louisiana and 34% occurred in Mississippi.
By 2007, 99% of the 1.2 million personal property claims had been settled by insurers.
June 2006 - The Government Accountability Office releases a report that concludes at least $1 billion in disaster relief payments made by FEMA were improper and potentially fraudulent.
Impact on the Gulf Coast
More than one million people in the Gulf region were displaced by the storm. At their peak, hurricane relief shelters housed 273,000 people. Later, approximately 114,000 households were housed in FEMA trailers.
During the first ten years after the storm, FEMA provided more than $15 billion to the Gulf states for public works projects, including the repair and rebuilding of roads, schools and buildings. The agency also provided $6.7 billion in recovery aid to more than one million people and households.
70% of New Orleans’ occupied housing, 134,000 units were damaged in the storm.
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Then —
A man in New Orleans' Lower Ninth Ward rides a canoe in high water on August 31, 2005. Hurricane Katrina struck the Gulf Coast on August 29, 2005. After levees and flood walls protecting New Orleans failed, much of the city was underwater. At least 1,833 died in the hurricane and subsequent floods. It was the costliest natural disaster in U.S. history.
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A woman walks with a dog in the Lower Ninth Ward on May 16, 2015.
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Robert Fontaine walks past a burning house fire in New Orleans' Seventh Ward on September 6, 2005.
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Houses stand in the Seventh Ward on May 12, 2015.
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Residents of the B.W. Cooper housing project play on mattresses on June 10, 2007. Before Hurricane Katrina, B.W. Cooper held about 1,000 families and was the city's largest housing project.
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On May 12, 2015, rubble remains at what used to be the B.W. Cooper housing project. The low-income development has been replaced by two-story, townhouse-style buildings.
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Duette Sims stands in the heavily damaged Christian Community Baptist Church in New Orleans' Lower Ninth Ward on August 28, 2007.
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Parishioners gather during Sunday services in the rebuilt church on May 10, 2015.
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On April 25, 2006, workers in the Lower Ninth Ward rebuild the levee that was breached by Hurricane Katrina along the Industrial Canal.
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New homes stand along the rebuilt Industrial Canal levee on May 16, 2015.
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Two men paddle through the streets past the Claiborne Bridge in New Orleans on August 31, 2005.
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A school bus drops off a student in front of the Claiborne Bridge on May 12, 2015.
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A lightning bolt strikes above a destroyed church in the Lower Ninth Ward on August 5, 2006. Dozens of churches were destroyed by Hurricane Katrina.
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New homes stand in the Lower Ninth Ward on May 15, 2015.
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A group of Amish student volunteers tour the Lower Ninth Ward on February 24, 2006.
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On May 16, 2015, new homes stand in a development, built by the Make It Right Foundation, for residents whose homes were destroyed.
Photos: Hurricane Katrina: Then and now
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Water floods a cemetery outside St. Patrick's Church in Plaquemines Parish, Louisiana, on September 11, 2005.