Scientific American Predicted New Orleans Flood

Scientific American releases its prescient article from 2001, titled "Drowning New Orleans." The article predicts "a major hurricane could swamp New Orleans under 20 feet of water, killing thousands," as a result of land use policies.

1 minute read

September 7, 2005, 7:00 AM PDT

By Chris Steins @planetizen


From the 2001 article:

"New Orleans is a disaster waiting to happen. The city lies below sea level, in a bowl bordered by levees that fend off Lake Pontchartrain to the north and the Mississippi River to the south and west. And because of a damning confluence of factors, the city is sinking further, putting it at increasing flood risk after even minor storms. The low-lying Mississippi Delta, which buffers the city from the gulf, is also rapidly disappearing. A year from now another 25 to 30 square miles of delta marsh--an area the size of Manhattan--will have vanished. An acre disappears every 24 minutes. Each loss gives a storm surge a clearer path to wash over the delta and pour into the bowl, trapping one million people inside and another million in surrounding communities. Extensive evacuation would be impossible because the surging water would cut off the few escape routes. Scientists at Louisiana State University (L.S.U.), who have modeled hundreds of possible storm tracks on advanced computers, predict that more than 100,000 people could die."

Wednesday, September 7, 2005 in Scientific American

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

June 25, 2025 - Diana Ionescu

Two people walking away from camera through pedestrian plaza in street in Richmond, Virginia with purple and white city bus moving in background.

Vehicle-related Deaths Drop 29% in Richmond, VA

The seventh year of the city's Vision Zero strategy also cut the number of people killed in alcohol-related crashes by half.

June 17, 2025 - WRIC

Two small wooden one-story homes in Florida with floodwaters at their doors.

As Trump Phases Out FEMA, Is It Time to Flee the Floodplains?

With less federal funding available for disaster relief efforts, the need to relocate at-risk communities is more urgent than ever.

June 16, 2025 - Governing

Two-story green apartment building in residential neighborhood in Berkeley, California with tall street trees.

Berkeley Approves ‘Middle Housing’ Ordinance

The city that invented single-family zoning is finally reckoning with its history of exclusion.

June 27 - San Francisco Chronicle

SEPTA Station

SEPTA Budget Slashes Service by 45 Percent

The Philadelphia-area transit agency is legally tasked with maintaining a balanced budget. Officials hope the state will come to the rescue with additional funding.

June 27 - Philadelphia Inquirer

Connecticut state capitol with gold dome and modern office buildings in background in Hartford, CT.

Connecticut Governor Vetoes Housing Bill

Gov. Lamont reversed his view on a controversial affordable housing bill that would have required municipalities to zone for set amounts of affordable housing to receive state funding.

June 27 - Housing Wire

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.