Sediment on wetland marshes to create new solid ground is seen near New Orleans, Louisiana, United States August 19, 2015. Experts believe that the rebuilding of artificial barrier islands and wetlands near New Orleans will help protect the city from rising sea levels during future storms. In 2005, Hurricane Katrina triggered floods that inundated New Orleans and killed more than 1,500 people as storm waters overwhelmed levees and broke through floodwalls. Congress authorized spending more than $14 billion to beef up the city's flood protection after Katrina and built a series of new barriers that include manmade islands and new wetlands. Reuters photographer Carlos Barria returned to New Orleans after documenting events in 2005 and found a city much rebuilt and renovated, although abandoned homes show Katrina’s lingering impact. REUTERS/Carlos BarriaPICTURE 5 OF 28 FOR WIDER IMAGE STORY "HURRICANE KATRINA 10 YEARS ON"SEARCH "CARLOS HURRICANE" FOR ALL IMAGES