Hurricane Katrina, a Category 2 storm with winds of 135 mph, made landfall at Empire, La., at about 7 a.m. ET on Aug. 29, 2005.
A mandatory evacuation of New Orleans was ordered in advance of the storm, though some 10,000 refugees sought shelter in the Superdome.
At least 1,836 people were killed in the hurricane and subsequent flooding, making it the deadliest U.S. hurricane since 1928.
Total property damage was estimated at $81 billion, nearly triple the damage wrought by Hurricane Andrew in 1992.
Water more than 12 feet high in some places flooded nearly 80 percent of New Orleans after the levee system failed.
A police car is submerged in New Orleans East after Hurricane Katrina hit the area.
Refugees of Hurricane Katrina fill the floor of the Astrodome in Houston.
A house in New Orleans is marked with the words "Dead Body Inside" and "Help."
Jane Ryan (R) and her husband Richard (L) rescue their daughter's cat, Princess, who had been stranded for three weeks since both Hurricanes Katrina and Rita struck, from their Saint Bernard Parish home in New Orleans.
Prisoner inmates are held at the end of a sunken highway in New Orleans after Hurricane Katrina struck.
Earl Dunbar of the Louisiana State Capitol Police carries a 5-day-old baby, an evacuee brought for treatment near the Superdome in downtown New Orleans.
Residents wait on a roof top to be rescued from the floodwaters of Hurricane Katrina in New Orleans.
Hurricane Katrina survivors taunt a National Guardsman for arriving too late to help some who have died waiting for food and water, just before food distribution by the National Guard at the New Orleans Convention Center.
A man holding a baby uncovers the body of a dead man, suspected to have been sitting there for two days, outside the New Orleans Convention Center.
A man clings to the top of a vehicle before being rescued by the U.S. Coast Guard from the flooded streets of New Orleans.
Eric Leese sits on a couch in his flooded living room in Metairie outside New Orleans.
Antonio Bustillos of the National Guard of New Mexico enters through a window in a flooded house of Port Sulphur, 30 miles south of New Orleansj.
Hurricane Katrina holdout Joshua Creek sits on the porch of his house in front of the Memorial Medical Center of New Orleans.
An Army National Guard helicopter drops sandbags in an effort to fill a breach in a levee that runs along the Industrial Canal in New Orleans.
Doris Radosti looks through what is left of the Hospital Drug Store, which had been broken into and looted in the aftermath of Hurricane Katrina, in downtown New Orleans.
Maribel Beltrain throws wood on a pile as she helps friends to clean up in Orleans Parish in New Orleans.
Irene Mackenroth, 69, of Orleans Parish looks at her ruined Mardi Gras gowns. Mackenroth has lived at the same address for 27 years and has made it through 13 floods, but Hurricane Katrina brought floods of six and a half feet into her home after the levees gave way, ruining most of her possessions.