Photos: Engineering New Orleans, post-Katrina

This reinforced concrete safe house is designed to allow someone to control the new hurricane protection gates at the mouth of the 17th Street Canal, even during a hurricane. If it looks like a storm is going to be strong enough to destroy the safe house, the people inside can escape out the back and then the gates can be remotely controlled.

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Photo by Daniel Terdiman/CNET News.com

Caption by Daniel Terdiman