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Started By
Message
re: New Orleans levees sinking faster than planned
Posted on 7/9/19 at 2:39 pm to Capt ST
Posted on 7/9/19 at 2:39 pm to Capt ST
quote:i know for a fact settlement, subsidence, and freeboard were taken into account in the design of the system. Thats not to say some elevations were reduced to cut costs and allow for overtopping.
What's sad is the fact that settlement in this region is well known and taken into consideration in the design phase. Why they chose to overlook after being told by Van Heerden is criminal.
This post was edited on 7/9/19 at 2:48 pm
0
Posted on 7/9/19 at 2:41 pm to Emteein
quote:wrong, you can include freeboard to account for anything.
What exactly does this mean?
quote:
“freeboard,” extra room at the top of the levees to account for anticipated sinking for the whole life of the project
so when these elevations are set, they run the model on what is a 100yr or 500 year storm ELevation. that take that elevation and add sea level rise and freeboard, than they is your design elevation.
Posted on 7/9/19 at 3:23 pm to Hangover Haven
quote:
They need to put gates on the Chef and the Rigolets a
Apparently you don't get out that way much.
Posted on 7/9/19 at 3:26 pm to KiwiHead
quote:
Apparently you don't get out that way much.
When did they put gates out in Chef Pass and the Rigolets?
This post was edited on 7/9/19 at 3:28 pm
Posted on 7/9/19 at 3:30 pm to doubleb
quote:
That’s not correct. The first payment is due next year.
You’re wrong, they were supposed to start paying when construction began years ago but they don’t HAVE to until next summer.
In the mean time, the interest accruing is being added to the original principal increasing the final cost.
Posted on 7/9/19 at 3:50 pm to BowDownToLSU
"that global sea-level rise"
LOL, hasn't happened.
LOL, hasn't happened.
Posted on 7/9/19 at 7:40 pm to NolaAg04
quote:
You’re wrong, they were supposed to start paying when construction began years ago but they don’t HAVE to until next summer.
So you are saying that they could have began paying earlier, but they don’t have to pay until next Summer?
Posted on 7/9/19 at 7:58 pm to doubleb
It’s absolutely true! The state could have been making payments from Day 1, but chose to DEFER payments while interest accrued. Original payments were supposed to be much lower, around $30-40M annually. They’re now a $100M. Seems like a wasted opportunity to me...
Posted on 7/9/19 at 8:01 pm to BowDownToLSU
Can someone give me the Cliff's Notes on why someone decided to build a city there? What did they do before levee's?
Thanks
Thanks
Posted on 7/9/19 at 8:07 pm to DCTiger
quote:
It’s absolutely true! The state could have been making payments from Day 1, but chose to DEFER payments while interest accrued. Original payments were supposed to be much lower, around $30-40M annually. They’re now a $100M. Seems like a wasted opportunity to me..
It’s like a mortgage.If you can afford it then it’s best to pay it down.
La. never thinks ahead. We seldom take a business like approach. Instead we take care of special interests.
Posted on 7/9/19 at 9:10 pm to sacrathetic
quote:
On a long enough timeline, nature always wins.
That's an ignorant statement.
Posted on 7/9/19 at 9:29 pm to DCTiger
quote:
Seems like a wasted opportunity to me...
They will get more money from FEMA next time it happens.
Posted on 7/10/19 at 2:40 pm to tgrbaitn08
quote:
When did they put gates out in Chef Pass and the Rigolets?
If you know the area out there you would know of the massive surge barrier at Lake Borgne that runs the length of MRGO from Canaervon to the Inter coastal and runs along the north shore of the intercoastal along with the flood gates at Bayou Bienvenu and Dupre the Chef and Rigolets pose very little to no threat to flooding the city . MRGO intersecting with the Inter coastal is the dagger because it hooks up with the Industrial Canal in the middle of Nola.
Besides the structures that worry them are the 17th Orleans and London Avenue canals further to the west on the lake that are used for drainage and have flood gates with massive pumps
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