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Started By
Message
re: A billion-dollar coastal project begins in Louisiana
Posted on 8/10/23 at 10:18 am to Bigfishchoupique
Posted on 8/10/23 at 10:18 am to Bigfishchoupique
quote:
You can’t replicate the Mississippi River running full bore for centuries with a diversion project.
Like most everyone, I'm rooting for this to succeed (despite graft), but Bigfish raises a great point.
There is nowhere near the amount of sediment available in the Mississippi River as when it created S. Louisiana.
Previous government projects upstream have limited the amount of sediment in the water. How does a partial diversion of the river rebuild land when it carries 60 percent less sediment than when it originally accomplished the task?
USGS Brief history on effects of engineering on MS river
"Prior to major river engineering, the estimated average annual sediment yield of the Mississippi River Basin was approximately 400 million metric tons. The construction of large main-channel reservoirs on the Missouri and Arkansas Rivers, sedimentation in dike fields, and protection of channel banks by revetments throughout the basin, have reduced the overall sediment yield of the MRB by more than 60 percent."
2
Posted on 8/10/23 at 10:20 am to DeCat ODahouse
They’ve admitted it basically won’t do anything. The only way to rebuild coastal Louisiana is to build the land yourself like they’ve been doing in some locations. The 2070 projection map is hilariously small and pathetic for a project like this.
This post was edited on 8/10/23 at 10:23 am
Posted on 8/10/23 at 10:23 am to Bigfishchoupique
quote:
You can’t replicate the Mississippi River running full bore for centuries with a diversion project.
Posted on 8/10/23 at 10:26 am to member12
Just don't get the obsession with trying to combat mother nature and save the coast. If we let the Mississippi do its own thing this would not be an issue.
People also forgot most of this "land" was not here a few thousand years ago.
People also forgot most of this "land" was not here a few thousand years ago.
Posted on 8/10/23 at 10:31 am to dewster
quote:
help build additional marsh and hopefully build some protection for New Orleans.
This won’t do shite, this gets promised for all the diversion and then there are a pile of excuses why the next one will work.
Posted on 8/10/23 at 10:41 am to dewster
quote:
Wondering how much may be used as seed money for research into trying this again somewhere else along the river.
There’s already a second one planned further upriver on the opposite bank.
Posted on 8/10/23 at 10:42 am to DeCat ODahouse
quote:Mardi Gras Pass has been building land on the east side of the river with a flow rate of 30,000 CFS. This new diversion will be capable of 2.5x that flow rate
How does a partial diversion of the river rebuild land when it carries 60 percent less sediment than when it originally accomplished the task?
NOLA.com article about Mardi Gras Pass land building and area near the breach faring better after Ida
Posted on 8/10/23 at 10:42 am to member12
quote:
A billion-dollar coastal project begins in Louisiana
will translate to throwing $500 worth of dirt along the coast.
Posted on 8/10/23 at 10:45 am to Meauxjeaux
with that hedge, they can claim "it worked" when people bitch about the billion + they spend.
Posted on 8/10/23 at 11:16 am to GREENHEAD22
quote:
Ooorrr we could just blow the levees like we need to.
quote:
blow the levees
Posted on 8/10/23 at 11:26 am to Atttaboy
quote:
And they should divert part of the Miss River through Bayou Lafourche
I have lived on the bayou side of bayou Lafourche in Raceland for more than 30 years and have never seen it so low during the summertime as what is has been this year. They had to close a lock so the water could rise for the water plant in Lockport. It is unbelievable.
When they opened the lock, the bayou dropped at least 3 feet in a day.
Posted on 8/10/23 at 11:28 am to member12
quote:
even as climate change-induced rising sea levels threaten the disappearing coast
So, even as they begin a project to solve the coastal erosion that they admit is caused by the River levee and diversion systems, they still have to pretend this is ALSO related to climate change?
It's like they are fricking AI robots following a script.
This post was edited on 8/10/23 at 11:39 am
Posted on 8/10/23 at 11:31 am to member12
I only care what this will do to the trout.
Posted on 8/10/23 at 11:34 am to member12
Sound in principal and it should work. Hope it works.
Posted on 8/10/23 at 11:35 am to member12
quote:
State coastal officials call it a first-of-its-kind project they are certain will work
quote:
“Without question, we are confident that this project will build land within the Barataria Basin,” Bren Haase, chair of Louisiana’s Coastal Protection and Restoration Authority, said Tuesday.
I'm guessing they kind of have to say this, as instead saying "we're hoping this will work" is going to be quite a bit less likely to get the taxpayers to cough up 3 billion dollars.
Posted on 8/10/23 at 11:49 am to Upshift Downshift
quote:
You can’t replicate the Mississippi River running full bore for centuries with a diversion project.
Are we all supposed to move to the mouth of Wax Lake Outlet ?
Nuts. It’s too late. I’ve been watching it go since the ‘60’s. A very short time as a geologic period.
I can’t be fixed.
We would have to have done something like the Netherlands did years ago. It ain’t gonna happen.
This post was edited on 8/10/23 at 11:50 am
Posted on 8/10/23 at 11:53 am to member12
quote:
as climate change-induced rising sea levels
Posted on 8/10/23 at 12:01 pm to lsu13lsu
quote:No. This is very location specific. sediment transport in the river is almost its own degree.
Couldn't they just open the various gates we have such as the Bonne Carre and Atchafalaya and it be a lot cheaper?
Posted on 8/10/23 at 12:02 pm to BoogaBear
quote:
Blow the levees and let the river do river shite.
Posted on 8/10/23 at 12:24 pm to BoogaBear
quote:
Blow the levees and let the river do river shite.
W already did that...It didn't work out.
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