Sunday, September 11, 2005

Make It an Island

Bruce Babbit wrote in NYT After the victims are interred and public officials held to account for the destruction of a great American city, Congress must determine what to rebuild and what to abandon to the encroaching waters of the Gulf of Mexico. New Orleans will survive only as an island surrounded by miles of open water. It will take a national effort, led by our best scientists, engineers and city planners, to achieve even this reduced vision of an American Venice.

I do not believe we should rebuild anything that is currently below sea level, and based on the statement below that "sea levels are likely to rise two to three feet in this century", maybe we should not rebuild anything that is currently less than 3 feet above sea level. If that means all of New Orleans (I am not sure of the elevations in the French Quarter), then so be it.
We must take the time to redesign the city to function as an island, with an island infrastructure, including relocated streets, highways and utilities. The island will need higher, stronger seawalls and levees sufficient to withstand new threats, including the rising sea levels and bigger hurricanes spawned in warming Atlantic waters. Sea levels are likely to rise two to three feet in this century. Coastal maps drawn from consensus estimates show that virtually all of the delta lands south of Baton Rouge and below Interstate 10 - some 5,000 square miles - will be submerged by the end of this century.

State and local officials are understandably in denial about the impending loss of so much Louisiana land and heritage. The depth of their paralysis is underlined by a recent program to collect discarded Christmas trees from New Orleans to stack on barrier islands against the tides.
If state and local officials want to rebuild, let them spend state and local dollars. Dont expects people in Texas, Oregon, Maine, and Florida, as well as the other states, to pay for it.
In recent years state agencies assembled a $14 billion project called Coastal 2050. One of its proposals was to cut gaps in the Mississippi River levees, which would provide outlets for the river to deposit some of its sediment onshore to help rebuild the delta. This idea may help in a few areas, but it will do little to offset the vastly larger forces of a rising sea. Other proposals in the package include building coastal barriers, plugging delta channels dredged by oil companies and re-vegetating barrier islands. But overall the Coastal 2050 projects have as much chance of success as King Canute commanding the tides to recede. Congress should resist the urge to appropriate huge sums for piecemeal reconstruction efforts.
I agree completely
Restoration of the city and the delta will be a national effort, and it should be guided by a national plan. Congress should charge a commission of our best scientists, engineers and planners to asses the alternatives, draw up a regional land plan and recommend a realistic course of action.

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