re: Mississippi River Flooding - Links & Pictures in 1st Post

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What about Angola? Will the prison be evacuated?
yes

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it has already begun from what i'm hearing


but like i posted earlier, most of the prisoners will be relocated to higher ground within angola

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They are related. Higher water levels equals higher flow rates if the velocity is constant. I would think flow rates are used because they are a more accurate measure of whats going on. 40 feet of stagnant water is bad, but it won't erode anything like 35 foot of water hauling arse.

ETA: That was an educated guess BTW. I'm no expert.

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Makes sense.

so when is the big flood coming?

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tetu

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Also, like scottie said, 1000000 CFS is 1000000 CFS no matter what else is going on. It's a much more accurate representation of whats going on because the river changes depth and width constantly. Each section of the river can only handle so many CFS before shite's coming over the top or the pressure is to great and you get catastrophic failure.

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Scottie doesn't know

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Bout cubic feet per second or fiona and me

well, that was quick

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Also, like scottie said, 1000000 CFS is 1000000 CFS no matter what else is going on.

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i just came in on this part. but as the water rises this CFS will stay constant but the velo will reduce. that is of as you say the CFS will remain constant.

Don't think that opening Morganza alone with do any serious damage to infrastructure. River changing course would do serious damage but that is what everyone is trying to control and very probably will succeed.

Rumor has it that crest at Morganza will exceed the hight of the locks (not higher than the road but higher than the lock, meaning water will overtop the locks). If the crest is as projected, it should be about a foot and a half below the top of the levee at Morganza. Opening the floodway would likely drop the level below Morganza 3 feet or more. Supposedly dropped four feet when opened in 73. But remember, it was only opened in 73 because Old River was getting ready to give way. This crest will be higher than 73, though. Farmers in the spillway area behind the Morganza lock have begun to move equipment out of the floodway area. Water is expected in the forebay (betwen the levee and the lock) in the next few days.

I think the only real dangers are the chance of losing the Old River structure and the new one should be stronger and better than the old one, and the chance of a levee breach, which is pretty unlikely.

well yea it is directly proportional to the cross section of river channel.


but like i said i dont know what yall were talking about when i read that.

The Low Sill structure at Old river was permentantly damaged in 1973. The auxillary structure was built to take pressure off of it. I supposedly can only maintain a maximum of 22 ft of head between the Mississippi and Atchafalaya. There is a head of 17.8 ft today. I work on the river in Reserve and it is really starting to roll.

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