The U.S. Army Corps of Engineers is doing a study looking at raising sinking levees across Metro New Orleans.
Officials say the study will look at the environmental and economic costs associated with it.
Corps spokesman Matt Roe says it's common for levees to gradually sink, which can make them stronger and more compact. Roe says although sinking isn't necessarily bad, it is important to make sure they maintain a certain height to provide maximum protection against flooding.
The federal government invested over $14.6 billion in the levee system across Metro New Orleans after Hurricane Katrina to ensure it could with stand a 100-year storm.
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