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re: State of Mississippi coming for the Morganza to open to ease Miss River flow
Posted on 1/25/20 at 2:34 pm to RDOtiger
Posted on 1/25/20 at 2:34 pm to RDOtiger
If the structure fails upon opening it and the river switches course the economic impact will make the MS coast losses look like a walk in the park. There not going to open it unless there is no other choice.
Posted on 1/25/20 at 2:36 pm to LSU Tiger Bob
quote:
I think the COE is scared shatless to open it....or to even try.
This is my main question that I’m ignorant about. I know the spillway got damaged pretty bad in the 70s when the bigass flood happened. My question is was the spillway fully “repaired” or not? I understand repairs of this nature are not easy feats because of constantly fighting against the river.
Honestly this is one of the topics I keep up with frequently in Louisiana. The failure of the Morganza during a flood stage would in my opinion be by far the biggest disaster in United States history. I understand the ramifications of a permanent river re-course
Posted on 1/25/20 at 4:31 pm to Folsom
Umm...that would be horrible. All the pterochem industry between br and Nola would go tits up if the river rerouted. Not sure if anyone has done an analysis on that happening. I feel as though it would be the same as blowing up the Henry hub. Like, country crippling type shite.
Posted on 1/25/20 at 4:57 pm to UnitedFruitCompany
quote:
Umm...that would be horrible. All the pterochem industry between br and Nola would go tits up if the river rerouted. Not sure if anyone has done an analysis on that happening. I feel as though it would be the same as blowing up the Henry hub. Like, country crippling type shite.
We’re talking about temporarily diverting a small percentage of the Mississippi River through Morganza, not permanent re-route. Dickhead
Posted on 1/25/20 at 5:17 pm to OBReb6
quote:If the morgana structure fails, you are talking about permanently diverting 100% of the Mississippi River through Morganza, DICKHEAD.
We’re talking about temporarily diverting a small percentage of the Mississippi River through Morganza, not permanent re-route. Dickhead
Posted on 1/25/20 at 5:17 pm to OBReb6
And there are some who think doing so would cause a permanent re-route given the delta in river elevations, the damage opening Morganza sustained last time, and the current silt levels of the river.
Which is what i was referring to, dickhead. Not whether or not to open it or not.
And, as others have said, it’s way more than MS baws and bay St. Louis.
The politicians and the Exxon Mobil’s of the world going to make that call. Not the engineers. Which is why, eventually, we are fricked. Because the river is going to decide what it wants. And no amount of dredging or fishing is going to change that.
Which is what i was referring to, dickhead. Not whether or not to open it or not.
And, as others have said, it’s way more than MS baws and bay St. Louis.
The politicians and the Exxon Mobil’s of the world going to make that call. Not the engineers. Which is why, eventually, we are fricked. Because the river is going to decide what it wants. And no amount of dredging or fishing is going to change that.
Posted on 1/25/20 at 5:43 pm to UnitedFruitCompany
Why hasn't the Morganza damage been fixed? I understand you are vulnerable while work is going on but maybe don't work at LA pace while it's happening.
Posted on 1/25/20 at 6:15 pm to Hurricane Mike
What damage are yall talking about. The damage from the 1970 opening?
Posted on 1/25/20 at 7:40 pm to Hurricane Mike
quote:
Why hasn't the Morganza damage been fixed? I understand you are vulnerable while work is going on but maybe don't work at LA pace while it's happening.
I don’t know what the Morganza scaredy-cats are talking about with a possible failure due to repairs not being done sine the 70s.
The biggest point of failure on the River is the Old River Control Structures. One of those structures started to fail in the major flood of the 70s. That was when they opened Morganza to help with ORCS. Anytime a spillway is opened there is scouring and depositing of materials. From what I understand, the scour spots in the Morganza Spillway in 2011 (the last opening they did the repairs) were repaired.
Sure much work needs to be done the Atchafalaya basin such as more dredging. The state is working and is about to start working on the Bayou Chene floodgate that will protect Morgan City’s eastern flank and points east of the Atchafalaya.
Some people on this board have also commented at times that the USACE does need to address high levels of sediment that has started to be deposited in the river bottom at or near the Morganza structure. What some posters are foreshadowing is that because of the higher water bottoms at that point in the river that is is going to cause the river to shift because of the river will look for a quicker lower slope to the gulf and hence the river switch to the Atchafalaya.
I say if Mississippi doesn’t want the water, then the USACE should look for an alternative. At a time there was talk of a conveyance channel that would follow the flow of Bayou Lafourche to the east and bring more fresh water and sediments like the Wax Lake outlet to Lafourche and Terrebonne.
I have a different approach to this conveyance channel idea. There should be a channel or outlet that connects the Mississippi River with Lake Des Allemands instead of the Bayou Lafourche Conveyance channel. That channel could be the equivalent to the Bonne Carre Spillway, but we are talking about some new levees that will be needed in the Pleasure Bend area, St. Charles Parish, and Kramer.
Another thing is that once major diversions start opening like midBarataria, that could help with the water situation in New Orleans as it will be open nearly year round lowering the water levels in the extreme southern part of the river. Also, other diversions like Davis Pond should be operated at higher levels in extreme high water events. Right now it only operates at 10,000 CFS at its highest. Typically it is much lower. There should be a current in the diversion channel. Every time I pass over it, it looks like a stagnant Bayou. No wonder why it is really isn’t doing much.
This post was edited on 1/26/20 at 7:46 am
Posted on 1/25/20 at 7:47 pm to Mahootney
quote:
If the morgana structure fails, you are talking about permanently diverting 100% of the Mississippi River through Morganza, DICKHEAD.
That is facebook level stupidity and no one other than you has made that claim.
Posted on 1/25/20 at 7:57 pm to OBReb6
quote:
What are the negatives to opening Morganza (in a non catastrophic flood situation)? Any infrastructure or agricultural get flooded?
Lot of meth labs go under water.
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