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Started By
Message
re: Morganza Spillway may or may not open for a 3rd time -- lack of clear info from ACoE
Posted on 5/23/19 at 2:12 pm to uway
Posted on 5/23/19 at 2:12 pm to uway
While I know it makes up only a small part of the overall capacity of the Mississippi, all of that flooding you are reading about on the Arkansas, Oklahoma and Missouri Rivers is going to work its way down here at some point. I have to figure that's part of the calculus going into this decision.
When they open Morganza, it's going to be open for a while.
When they open Morganza, it's going to be open for a while.
0
Posted on 5/23/19 at 2:15 pm to Y.A. Tittle
Morgan city went completely under in the 73 flood.
Posted on 5/23/19 at 2:15 pm to GusMcRae
quote:
I never said anything about the ORCS failing.
You said
quote:
My guess is a lack of confidence in a control structure which was built 75 years ago.
Which I interpreted to mean ORCS. Then you said
quote:
Once you start opening gates, the volume of water under the kind of pressure shooting through there... the whole thing could disintegrate.
The above quote alone sounds like you were talking about Morganza but your previous use of the term "control structure" threw me off
Posted on 5/23/19 at 2:15 pm to TDsngumbo
quote:do you know that officially.
The ORCS is already operating at maximum capacity
quote:you should see the amount of concrete pumped under the low sill after '73 and people done realized the Aux structure was built after that to a ton of flow can be release there.
They don't think ORCS is in any danger, for starters. They open Morganza WELL before there is any real threat to ORCS.
Bingo. The only people who think the ORCS may fail are the fear mongerers in this thread.
Hell id be for putting another hydro plant there.
Posted on 5/23/19 at 2:16 pm to CarRamrod
quote:
I see they want to put a barge gate there on the south east side of Avoca Island.
Same one they installed in '11 and '16. Probably a little late with the install. Everything is at record heights on that side and that hampers drainage. Got a bunch of workers from Pierre Part, all say its the worst they've seen, and some aren't spring chickens.
Posted on 5/23/19 at 2:18 pm to CarRamrod
quote:
quote:
The ORCS is already operating at maximum capacity
do you know that officially.
I don't know that officially but I assume it's operating at max capacity. Why would it not be with the river so high?
Posted on 5/23/19 at 2:18 pm to NYNolaguy1
quote:this is very true. there are plans to mitigate this at ORCS.
The general silting condition that is as at Morganza exists at ORCS as well.
Posted on 5/23/19 at 2:20 pm to CarRamrod
quote:
there are plans to mitigate this at ORCS.
They going to fluff the bottom?
Posted on 5/23/19 at 2:20 pm to fillmoregandt
quote:well yes and no.
Dumb question: is the sediment build-up at the bottom of the river a partial result of the levee system not allowing the river to go where it wants?
Yes. Without the levees, the river could dump that sediment elsewhere during floods.
fun fact, if you own a dredge you have a job for life. the US government pays to have sediment dredged up into the water column just to flow down stream and collect just to be dredged and put into the water column again. year round up and down the river.
Posted on 5/23/19 at 2:21 pm to Y.A. Tittle
quote:yea dredging on the river happens all the time as i just said.
My mind implodes when I try to imagine the ways dredging would take place in a river as violent and large as the Mississippi River even when it's "gentle".
They dredge areas along the New Orleans riverfront all the time. I assume other places where deep draft ships need to dock as well.
Posted on 5/23/19 at 2:22 pm to CarRamrod
quote:
tell you the truth i havent looked at what the water is doing right now. but from a quick google search that better be one huge barge.
I see they want to put a barge gate there on the south east side of Avoca Island.
Yeah, the same place they put it in 2011. I figured with your expertise you would have known that
Posted on 5/23/19 at 2:24 pm to GusMcRae
quote:
There has been a huge dredging ship at the Head of Passes, below Venice where the mouth of the river splits into is 5 main mouths, for as long as I’ve been fishing down there. It appears to run 24/7/365, trying to keep shipping lanes open.
Every time I pass, I wonder who has that contract? Never ending contract. How much money is someone stacking up doing this?
yep. Probably Weeks or Great Lakes. they own most of the dredges in the world. Posted on 5/23/19 at 2:25 pm to tgrbaitn08
quote:
Yeah, the same place they put it in 2011.
quote:who said i was an expert on the outflow of Bayou Chene?
I figured with your expertise you would have known that
oohh yea you just trying to be prick.
Posted on 5/23/19 at 2:30 pm to CarRamrod
not a direct reply, but it seems that the only permanent solution to the avulsion above the ORCS is to either dredge a whole hell of a lot of riverbed at enormous cost or allow the river to do what the hell it wants and switch to the Achafalaya.
So can someone explain why the USACE isn't increasing dredging efforts or hiring private contractors to do it?
The cost of that project has got to be less than the losses incurred by all the industry and shipping downriver getting screwed if / when the river switches channels no?
So can someone explain why the USACE isn't increasing dredging efforts or hiring private contractors to do it?
The cost of that project has got to be less than the losses incurred by all the industry and shipping downriver getting screwed if / when the river switches channels no?
Posted on 5/23/19 at 2:44 pm to CarRamrod
"We can keep the things the way they are but can't guarantee a natural disaster killing thousands, or we open the river slowly and you have 20-30 years to move."
Or however long it would take.
Or however long it would take.
Posted on 5/23/19 at 2:47 pm to CarRamrod
quote:
the US government pays to have sediment dredged up into the water column just to flow down stream and collect just to be dredged and put into the water column again
They want 70% royalties if you keep what you dredge up. Use to be some people locally that rand dredges for years here and would get several barges a day in gravel until they were told it would cost the 70% in royalties. They shut the operation down after that
Posted on 5/23/19 at 2:51 pm to FelicianaTigerfan
Can you imagine if the river changed course? Holy hell that would be interesting.
Posted on 5/23/19 at 2:55 pm to GeorgeTheGreek
quote:
Can you imagine if the river changed course? Holy hell that would be interesting.
It would make Katrina look like a popcorn fart.
In fact, the national economic impact would be a combination of 9/11, Katrina, Sandy and Mt. St. Helens eruption x 4.
Posted on 5/23/19 at 3:08 pm to udtiger
quote:
It would make Katrina look like a popcorn fart.
In fact, the national economic impact would be a combination of 9/11, Katrina, Sandy and Mt. St. Helens eruption x 4.
Lets elaborate on this thought.
This is the most interesting aspect to me. My whole family, and all my inlaws live in Pierre Part.
Could the Atchafalaya basin handle the load if it were to become the new Mississippi?
Posted on 5/23/19 at 3:10 pm to nopants
quote:why do you think the river wants to do that?
r allow the river to do what the hell it wants and switch to the Achafalaya.
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