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Floodwalls in Swampy New Orleans `Like Putting Bricks on Jell-O'
Newhouse News ^ | 11/10/2005 | John McQuaid

Posted on 11/10/2005 9:28:36 AM PST by Incorrigible

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Count on engineers to make honest assessments about the viability of floodwalls in Mississippi River soil around a major metropolitan area.

Alas, when will politicians ever listen.

1 posted on 11/10/2005 9:28:37 AM PST by Incorrigible
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To: Incorrigible

No insurance company in their right mind is going to be issuing any more policies in low lying NO.


2 posted on 11/10/2005 9:30:20 AM PST by Semper Paratus
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Comment #3 Removed by Moderator

To: Incorrigible

It was the engineers trying to get out the information about the Challenger. Politicians failed to listen then. I wonder if we should start electing more engineers to political office. They seem to be connected to the real world.


4 posted on 11/10/2005 9:33:08 AM PST by saganite (The poster formerly known as Arkie 2)
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To: Incorrigible

How about a floating swamp? Rebuild the city on stilts, or we could have the Venice of the South. Oh, well, they've probably already thought of that. However, the Dutch have new ideas about reclaiming land from the sea that might bear looking into.


5 posted on 11/10/2005 9:34:27 AM PST by hershey
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To: Incorrigible

Level the place. Make it for business and shipping lanes only. Build homes OUTSIDE of the city of N.O. and smarten up. Sick of paying taxes and funding this sin hole for nothing. Besides...it's too "French" for my taste.


6 posted on 11/10/2005 9:35:20 AM PST by My Favorite Headache ("Scientology is dangerous stuff,it's like forming a religion based around Johnny Quest and Haji.")
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To: Incorrigible
Would it be cheaper to create an enormous concrete raft and build the city on that? Water rises, city rises. Water leaves, city comes back down to earth.

Or relocate New Orleans a little to the West. Like, in Texas.

7 posted on 11/10/2005 9:35:25 AM PST by ClearCase_guy
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To: Incorrigible
AquaTerra workers tried driving steel sheet piling down to the 55-foot depth the design required for the walls' foundation

I keep reading about "sheet-steel pilings". How long is steel going to last while buried in a swamp?

8 posted on 11/10/2005 9:35:36 AM PST by wideminded
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To: saganite
"I wonder if we should start electing more engineers to political office. They seem to be connected to the real world."

I doubt you could get them to run. And given the engineer's propensity for truth, I can't see any of them winning.

9 posted on 11/10/2005 9:37:24 AM PST by Wonder Warthog (The Hog of Steel)
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To: Semper Paratus

Any fool knows that a building {or dam} is only as strong as its foundation. Put cement on top of swamp and water will go under the cement collapsing the cement wall. Even my 11 year old grandson can understand this.


10 posted on 11/10/2005 9:37:37 AM PST by USS Alaska (Nuke the terrorist savages - In Honor of Standing Wolf)
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To: wideminded

Ssshhhhhh! It will last ... long enough.


11 posted on 11/10/2005 9:38:08 AM PST by ClearCase_guy
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To: Incorrigible

Maybe just a big pile of money will hold back the flood water. Just keep adding more.


12 posted on 11/10/2005 9:38:39 AM PST by JustAnotherOkie
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To: Incorrigible
Count on engineers to make honest assessments about the viability of floodwalls in Mississippi River soil around a major metropolitan area.

The problem is always that political and business leaders never like what engineers have to say and force a solution with a small fraction of the needed resources.

Sometimes, the solution is acceptable. Many times, clueless leaders just manage to produce crap. Sometimes, no matter how much effort you put into educating them, they still make the worst possible decisions.

13 posted on 11/10/2005 9:39:14 AM PST by hopespringseternal (</i>)
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To: Incorrigible

Jello would be a better foundation than much of what NOLA sits on.


14 posted on 11/10/2005 9:40:42 AM PST by SWAMPSNIPER (LET ME DIE ON MY FEET IN MY SWAMP, ALEX KOZINSKI FOR SCOTUS)
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To: hershey

In a way, it is a city on stilts. You should see them driving the piles for a multistory building there....


15 posted on 11/10/2005 9:43:39 AM PST by Knitting A Conundrum (Act Justly, Love Mercy, and Walk Humbly With God Micah 6:8)
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To: Incorrigible

"Listen, lad. I built this kingdom up from nothing. When I started here, all there was was swamp. Other kings said I was daft to build a castle on a swamp, but I built it all the same, just to show 'em. It sank into the swamp. So, I built a second one. That sank into the swamp. So, I built a third one. That burned down, fell over, then sank into the swamp, but the fourth one... stayed up! And that's what you're gonna get, lad: the strongest castle in these islands." -- Monty Python and the Holy Grail.


16 posted on 11/10/2005 9:45:38 AM PST by Ingtar (Understanding is a three-edged sword : your side, my side, and the truth in between ." -- Kosh)
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To: Semper Paratus
No insurance company in their right mind is going to be issuing any more policies in low lying NO.

I was just at an insurance seminar for the AE community (Architectural/Engineering) and a geotechnical engineer complained he was having a very difficualt time getting insurance for their firm which does mostly dam work. Very high risk, and the premiums easily could put you out of buisness.

BTW, expect a few insurance companies to go under as a result of Katrina.

17 posted on 11/10/2005 9:45:53 AM PST by finnman69 (cum puella incedit minore medio corpore sub quo manifestu s globus, inflammare animos)
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To: jeffers; Brilliant; Gumdrop; nuconvert; visitor; Barnyard; carola; 1903A3; babble-on

PING!!!


18 posted on 11/10/2005 9:47:52 AM PST by Bigun (IRS sucks @getridof it.com)
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To: Incorrigible

Oh, oh! It can be done, but at what cost? Leave the part that is on high ground, but no development in the swamp areas except in small increments. Cheaper for the government to buy out the landowners and let them settle elsewhere.


19 posted on 11/10/2005 9:50:20 AM PST by RobbyS ( CHIRHO)
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To: Incorrigible

Good report. Having lived and worked as an architect in Houston 20 years ago I know all about soil plasticity(up to 20% expansion)from sedimentary deposits. I live in my native Montana now but am working on my FLOOD ROAD concept/table sized model, in response to Katrina. I thought of this 4 years ago after the flood in Des Moines : buoyant road panels, 20' x 20', piano-hinged on the landward side, dead man anchors on the river/sea side. The rising flood water naturally lifts the panels up into a vertical seawall, then back down into a roadway again as the waters recede. No sandbagging needed, no power requirements; natural forces do all the flood water containment work for you. Will video tape it in action and send to GOVERNORS of coastal states. I've already sent it to state transportation depts : no response as you would suspect. W=P


20 posted on 11/10/2005 9:51:06 AM PST by timer
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