by Misha Lepetic
All the strange things
they come and go, as early warnings
Stranded starfish have no place to hide
~Peter Gabriel, “Here Comes The Flood”
It is entirely unsurprising that much of the post-Sandy talk around New York City has coagulated around the ideology of the technological fix. The optimism that is encoded in this perfectly human response inspires us to emerge better, stronger and wiser from disaster. However, there is a further subspecies of this response, which I will call the monolithic technological fix. Thus, in the wake of catastrophe, we seem to focus our attention on answering the question, “What is the one thing that we could do to ensure that this will never, ever happen again?” In this case of New York City and Sandy, the answer to this question has manifested itself, in full deus ex machina glory, in the form of a sea wall. This brings up two distinct but entangled issues: whether it is a good idea, simply on the face of it, and what this implies for the urban fabric.
Concerning the first point, there are, of course, many opinions as to where said seawall(s) would go. The daftest involve skirting all of Lower Manhattan with a retractable 16’ seawall, which, aside from expressing a certain opinion of the outer boroughs, only works provided all subsequent storm surges agree to play nicely and remain under 16’. Columbia University’s Vishan Chakrabarti speaks for the most commonly considered solution, which would be a series of barriers meant to bottleneck any incoming surge around the general vicinity of New York Harbor: “I think we seriously have to think about doing this in three places probably – at the Verrazano, at Perth Amboy and at Hells Gate – to really protect the city.”
Perhaps most dramatic is the 2009 proposal made by an engineering firm called the New York-New Jersey Outer Harbor Gateway, which would essentially create a causeway stretching from Sandy Hook in New Jersey to the Far Rockaways. As hydrologist Malcolm Bowman notes,
“The thing about the Outer Crossing is that it could have a multipurpose function. It could act as a four-lane highway plus a rail connection between northern New Jersey and Long Island. It could be a very interesting New York City bypass as well as a rapid rail connection with Kennedy airport. You could even make it toll road to pay for it.”
A scenic way to JFK, of course, until it gets washed away by the Son of Sandy.
The problems with building these sorts of giant walls are myriad, and I will only mention the most obvious: The length of time it would take to design and construct a seawall of any appreciable effectiveness is, given today’s bureaucracy and expense, wholly incommensurate with the increasing frequency of these kinds of storms.
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