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

I have seen sand boils at LSU on the football practice fields and as far away as Nicholson drive. Amazing what water pressure can do. Apparently, they are a real concern.

LINK

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Amazing what water pressure can do. Apparently, they are a real concern.

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Years ago, my Grandfather owned the land where the Brusly Oak is, this is West of Hwy. 1. They had a old hand pump well, when the river was up, like now, the water table would have the well running like an open spigot.

The good news, and it admittedly ain't much, is that all the water going down the Spillway will likely build so more wetlands on the Wax Lake Outlet.

Wax Lake delta is already progradational w/out all the influx that is yet to come.. I'm sure this will rapidly accelerate that progradation

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Wax Lake delta is already progradational w/out all the influx that is yet to come.. I'm sure this will rapidly accelerate that progradation

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I love it when you talk like that.

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Years ago, my Grandfather owned the land where the Brusly Oak is, this is West of Hwy. 1. They had a old hand pump well, when the river was up, like now, the water table would have the well running like an open spigot.

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interesting. i love that oak



my question about the flooding: how long will it last? how long will it be at it's "peak" or whatever before everything starts to recede?

VERY detailed history of levee system and flood control on the lower Mississippi here:

LINK

Has anyone seen the water level in St. Mary Parish - the Atchafalaya and Lake Palourde in Morgan City?

Photos?

Anyone see this on the Wiki page? Of course there's no citation, so take this with about the smallest grain of salt on the planet.

LINK

"The Morganza Spillway was opened for the first and only time in 1973 to relieve pressure from the Old River Control Structure.[1][2] The spillway received minor scouring and slight damage to the stilling basin. After the 1973 flood, the structure was restored to its original condition. In 2008, a flood caused portions of the levee at the spillway to deteriorate and sent floodwaters into cropland located within the floodway. [7] It is because of this damage to the to the levées around the spillway and the extent to which the structure itself was undermined by just the '73 test that the Morganza Spillway has never been opened since, though it would have been useful during several subsequent years to relieve pressure on the Old River Control Structure. Studies by the Army Corps of Engineers after the test determined that once opened, it would likely never close again, and could be ripped from its footings, allowing the Mississippi River to jump its banks and flow primarily through the Atchafalaya Basin. While this would leave New Orleans, Baton Rouge, and the Port of New Orleans practically high and dry, the Atchafalaya Basin would become the the main artery of the Mississippi River below Morganza and several cities along the bucolic Atchafalaya River would be flooded and a new delta would begin forming immediately. The failure of the Morganza structure would be disastrous beyond imagination for the residents of south Louisiana and international commerce."

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Anyone see this on the Wiki page

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Yes, I read somewhere while Googling, that the natural flow of the river would have eventually combined the Atchafayla and MS River, but that's why the Old River Control was built, the article also stated that if it were to take the natural path, then it would severely digress coastal erosion in LA.