Re: engineering questions re. Katrina

From: Rich Blinne <>
Date: Wed Sep 21 2005 - 12:10:46 EDT

On 9/20/05, Bill Yoder <> wrote:
> Ruth,
> In my mind the biggest immediate issue in this disaster is that the
> levees broke. Why did the levees break? They should not have broken. I
> suspect that the amount of water that flowed over the levees would not
> have caused anywhere near the amount of flooding that was caused by the
> water that flowed through the breaches.
> Apparently the water that overflowed the levees ran down the other side
> and washed out the foundation of the levees. This soon weakened them and
> they failed. Is this a reasonable way to design a levee? IMO this is
> represents a major failure in levee design. I am confident that levees
> can be designed to preclude this.

  The following NY Times article is good summary of the engineering issues
with the flood walls and why they probably failed.
Received on Wed Sep 21 12:14:50 2005

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