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Would failure of Morganza structure solve coastal erosion?

Posted on 5/13/11 at 8:36 am
Posted by hawkster
Member since Aug 2010
6262 posts
Posted on 5/13/11 at 8:36 am
If the Mississippi diverted to the Atchafalaya could we use the billions that are being sought for coastal erosion to maintain a deep draft lake in the old Mississippi channel?
This post was edited on 5/13/11 at 8:37 am
Posted by AlxTgr
Kyre Banorg
Member since Oct 2003
84264 posts
Posted on 5/13/11 at 8:37 am to
Posted by bayoudude
Member since Dec 2007
25532 posts
Posted on 5/13/11 at 8:38 am to
It would definitely help out our parish.
Posted by choupiquesushi
yaton rouge
Member since Jun 2006
32674 posts
Posted on 5/13/11 at 8:38 am to
no... but.

restoring natural flow at about 30 points along the ms river would slow it down.
Posted by Croacka
Denham Springs
Member since Dec 2008
61448 posts
Posted on 5/13/11 at 8:38 am to
river changing course is the worst possible scenario

life as we know it would change greatly


maybe a few positives, but a thousand negatives
Posted by bencoleman
RIP 7/19
Member since Feb 2009
37887 posts
Posted on 5/13/11 at 8:39 am to
I dont understand where all of this failure of Morganza is coming from. Morganza is not in danger of failing. If anything orcs could possibly be but I think it would have to be a bigger flood event for that to happen
Posted by bayoudude
Member since Dec 2007
25532 posts
Posted on 5/13/11 at 8:40 am to
quote:

I think it would have to be a bigger flood event for that to happen


Anything bigger and we would all be heading for the hills
Posted by hawkster
Member since Aug 2010
6262 posts
Posted on 5/13/11 at 8:41 am to
quote:

AlxTgr


My post goes beyond the permanent diversion of the river, to the issue of extreme sediment deposition on the central Louisiana coast. Although erosion of the current Mississippi delta would continue, there would be a massive development of new delta at the southern end of the Atchafalaya basin.
Posted by AlxTgr
Kyre Banorg
Member since Oct 2003
84264 posts
Posted on 5/13/11 at 8:42 am to
quote:

I dont understand where all of this failure of Morganza is coming from
It really explains the number of shitty posts on the Rant.
Posted by LSUJuice
Back in Houston
Member since Apr 2004
17931 posts
Posted on 5/13/11 at 8:43 am to
quote:

Would failure of Morganza structure solve coastal erosion?

Maybe. In about 200 years.
Like someone said before, there would be about 6 positives and a thousand negatives.
Posted by bayoudude
Member since Dec 2007
25532 posts
Posted on 5/13/11 at 8:44 am to
Extreme eastern LA would wash away and LA would form a huge belly and expand rather quickly IMO due to the shallow bottom contours in the Marsh Island, Eugene Island and Ship Shoal areas. Remember these areas are so shallow because the river DID discharge there at one time.
Posted by Quidam65
Q Continuum
Member since Jun 2010
20457 posts
Posted on 5/13/11 at 8:44 am to
quote:

Anything bigger and we would all be heading for the hills


At that point I'm looking for an old man on a boat filled with animals.
Posted by AlxTgr
Kyre Banorg
Member since Oct 2003
84264 posts
Posted on 5/13/11 at 8:45 am to
quote:

My post goes beyond the permanent diversion of the river,
No, your post has a fundamental misunderstanding that necessitates a reading the thread I posted. "Failure of Morganza structure" is not even a concept.
Posted by hawkster
Member since Aug 2010
6262 posts
Posted on 5/13/11 at 8:46 am to
quote:

I dont understand where all of this failure of Morganza is coming from. Morganza is not in danger of failing.


I agree with your take. I don't think a permanent diversion of the river is a remote possibility. But if it did happen, one of the few positives would be the virtual end of the political religion of coastal restoration, which I believe is much too costly and unfeasible to succeed on a meaningful scale.
Posted by AlxTgr
Kyre Banorg
Member since Oct 2003
84264 posts
Posted on 5/13/11 at 8:46 am to
quote:

But if it did happen,
It would not be at Morganza.
Posted by Mudminnow
Houston, TX
Member since Aug 2004
34166 posts
Posted on 5/13/11 at 8:47 am to
No, wetland loss would still occurr. Its a multifaceted problem with about 9 factors in play and leveeing the Mississippi is just one of the factors.

The Atchafalaya and wax lake deltas are building land and its interesting to see the changes on a yearly basis.
Posted by Croacka
Denham Springs
Member since Dec 2008
61448 posts
Posted on 5/13/11 at 8:48 am to
some of these folks need to look at a map or something before concocting their ideas



there have been dozens of resources posted on this board, yet most of you idiots shoot from the hip


get educated
Posted by bencoleman
RIP 7/19
Member since Feb 2009
37887 posts
Posted on 5/13/11 at 8:48 am to
If you think this is the rivers best shot think again I remember 73 well and my family talked about 27 with fear in their voices 45 to. Again, ORCS has been improved since 73 it would have to be a bigger flood event to cause a failure and Morganza is not in any danger at all of failing and if it did so what when the water falls rebuild it
Posted by AlxTgr
Kyre Banorg
Member since Oct 2003
84264 posts
Posted on 5/13/11 at 8:50 am to
quote:

so what when the water falls rebuild it
People can't grasp that apparently. They seem to view it as just another ORCS complete with a ready channel and constant supply of water.
Posted by hawkster
Member since Aug 2010
6262 posts
Posted on 5/13/11 at 8:50 am to
quote:

quote:
I dont understand where all of this failure of Morganza is coming from
It really explains the number of shitty posts on the Rant.


If this site were the scientific forum charged with prioritizing actions and evaluating preparation and responses, then I agree that failure of the Morganza structure would be a low priority to assign resources to. But, even though this is a newborn board, the tradition of TD posting has commonly been the discussion of far-fetched bullshite scenarios, of which my post is a proud example. Now, if you are a Corps employee who can't be bothered with such drivel, please go back to work.


I do agree with you that a better thread title would have been, "Would the permanent diversion of the Miss. River to the Atchafalaya basin solve coastal erosion?", but to edit that now would make the rest of the posts in the thread incoherent.
This post was edited on 5/13/11 at 8:54 am
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