Defending New York City Against Hurricanes With Barriers

In the aftermath of Hurricane Sandy, there have been a number of proposals to waterproof the New York waterfront. One idea is to erect large—and expensive—storm surge barriers. Alex Marshall, author of "The $5.9 Billion Question" in the February issue of Metropolis magazine and author of the new book The Surprising Design of Market Economies, Malcolm Bowman, distinguished professor of oceanography at SUNY Stonybrook, Piet Dircke, and global director for water management for ARCADIS, talk about the proposals.

Proposed Outer Harbor Gateway. Courtesy of Halcrow Inc.
Proposed Outer Harbor Gateway. Courtesy of Halcrow Inc. ( Halcrow Inc. )
 Piet Dircke's conceptual design for a flood barrier in the Verrazano Narrows, as part of an integrated flood protection plan for the Hudson Bay
Piet Dircke's conceptual design for a flood barrier in the Verrazano Narrows, as part of an integrated flood protection plan for the Hudson Bay ( Piet Dirke )
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