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September 4th, 2012
07:12 AM ET

Inside the world's largest surge barrier

It cost $1.1 billion, and it's the biggest part of a $14.5 billion overhaul of New Orleans' flood protection system. Authorities say it worked during Hurricane Isaac. The world is taking notice.
Here, we take you inside the Lake Borgne Surge Barrier.

Filed under: Fredricka Whitfield • Josh Levs • Weather
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