Supporting documentation please.
Oh, please. I don't have time to go hunting links to satisfy your curiosity. This is from bits and pieces garnered over several years following much of the debate about the COE's supposed failures since Katrina, and was frequently TV snippets.
I'll ask ONE question of you instead. Exactly why is it, that the means and structures designed, built, and maintained by the COE over the entire rest of the the Mississippi valley (and many other places...including the rest of Louisiana) work just fine, with the only significant failure happening in the immediate New Orleans area??