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Started By
Message
re: Mississippi River changing at Morganza
Posted on 5/12/11 at 2:08 pm to AlxTgr
Posted on 5/12/11 at 2:08 pm to AlxTgr
quote:
This thread is not about the river changing course. It's about people thinking that it could possibly do so at Morganza instead of at ORCS.
Gotcha!
I think we're having multiple discussions going on, it gets confusing.
0
Posted on 5/12/11 at 2:12 pm to DownshiftAndFloorIt
quote:
I think it's just a concern because the gates of the morganza haven't been pressure tested like this since '73.
Even in 73 they weren't put to this big of a test.
Posted on 5/12/11 at 2:13 pm to bakersman
quote:You need to post louder in case they still don't get it
bakersman
Posted on 5/12/11 at 2:14 pm to tgrbaitn08
quote:
Where? Morgan City would be a sand bar.
Dunno. It would definitely move to follow the river though. Since so much of that is so low, it may wind up moving farther north like Simmesport or Krotz Springs.
**Gonna start another thread on this to get out of the Spillway ORCS debate***
Posted on 5/12/11 at 2:17 pm to bakersman
So what are the odds that the river flows through the Atch to get to the Gulf after all of this 
Posted on 5/12/11 at 2:31 pm to Boh
if the orcs fails it will happen, but not at the morganza spillway. At old river
Posted on 5/12/11 at 2:32 pm to bakersman
What would a fail at morganza do to the flow at ORCS? Also I would think that in a few months time with the full force of the MS a new channel would form on its own.
Posted on 5/12/11 at 2:35 pm to bayoudude
quote:It could not flow that long. Water only reaches the structure at very high levels. At the beginning of this flood deal, there wasn't even water touching the structure. Besides, there could never be "the full force of the MS" at Morganza.
Also I would think that in a few months time with the full force of the MS a new channel would form on its own
Posted on 5/12/11 at 3:24 pm to Topwater Trout
quote:
But where water is flowing generally forms a channel and I thought they were worried about it undermining the system(to me that means eroding away sediment thus leaving the structure obsolete)
yes that channel is old river and into the atchafalaya river. this is where the mississippi river wants to go naturally. not the morganza spillway. a new river will not be formed at the morganza spillway.
Posted on 5/12/11 at 3:48 pm to bakersman
quote:LINK
However, what if the control structures necessary to prevent the Mississippi's diversion to the Atchafalaya River were completely undermined and swept away during a flood such as the one in 1973? The ORCS has almost failed in the face of the Mississippi's might before, and it could still do so. Can the Army corps withstand nature's might indefinitely, or will physics and the Mississippi River win out in the end?
Posted on 5/12/11 at 3:54 pm to AlxTgr
quote:
There is no channel.
If the amount of water they are projecting was freely flowing through there it could cut a channel.
Not saying that would happen, but there are obviously some engineers out there who know a lot more than we do who at least have some moderate concerns about this.
Posted on 5/12/11 at 3:56 pm to ItTakesAThief
quote:
If the amount of water they are projecting was freely flowing through there it could cut a channel.
Not saying that would happen, but there are obviously some engineers out there who know a lot more than we do who at least have some moderate concerns about this.
rivers cut channels over decades or centuries
Posted on 5/12/11 at 4:00 pm to ItTakesAThief
quote:
If the amount of water they are projecting was freely flowing through there it could cut a channel.
Not saying that would happen, but there are obviously some engineers out there who know a lot more than we do who at least have some moderate concerns about this.
No, it really would not, and could you link those concerns?
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