Why would they breach the levee downriver from Nola? To me that wouldn't do anything to flooding up river. They should've breached levee btwn BR and Nola. That would've lessened cubic flow rate through New Orleans. Seems to me they learned from that dumb mistake by inputting the Morganza spillway and the Bonnet Carre spillway. Both are upriver from New Orleans, and Morganza is upriver from Baton Rouge. How dumb were they in 1927 to do that?