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Dozens of luxury high-rise buildings in South Florida are sinking
FOX Business ^ | December 17, 2024 | Aislinn Murphy

Posted on 12/20/2024 7:30:42 AM PST by george76

Condos and hotels in Sunny Isles Beach, Surfside, Miami Beach and Bal Harbour are at risk..

Miami’s barrier islands are home to many tall luxury buildings .. about three dozen are sinking.

Thirty-five luxury condos and hotels across Florida's Sunny Isles Beach, Surfside, Miami Beach and Bal Harbour have faced subsidence in the past handful of years..

...

The sinking of the high-rises amounted to 2-8 centimeters over a multiyear span running 2016 through 2023..

High-rises expect to see "up to several tens of centimeters" of settlement "during and immediately after construction," the University of Miami Rosenstiel School said ...

Builders constructed a "majority" of the affected condos and hotels after 2014,

...

We found that subsidence in most high-rises slows down over time, but in some cases, it continues at a steady rate. This suggests that subsidence could persist for an extended period,

...

The sinking "is primarily due to the gradual reconfiguration of the sand grains into a denser packing within sandy layers interbedded in the limestone" in the area, the study said.

The researchers hypothesized a link between construction-related vibrations or groundwater flow and the sinking, according to the study. Other things like daily tidal flow and stormwater injection could also have factored into the phenomenon.

(Excerpt) Read more at foxbusiness.com ...


TOPICS: Chit/Chat
KEYWORDS: florida; sinking; southflorida
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1 posted on 12/20/2024 7:30:42 AM PST by george76
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To: george76

Water flowing underneath can hollow out the land above. It’s a different kind of erosion.


2 posted on 12/20/2024 7:36:26 AM PST by Jonty30 (Genghis Khan did not have the most descendants. His father had more. )
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To: george76

I get the point of owning a house - basically NO ONE has the right to go into your house with your permission (unless it’s the police with a warrant or the case of real emergency, like a fire).

But with a condo, you have hand over your keys to the property manager, so they can enter ‘in an emergency. Pretty much the same for an apartment, except in an apartment, if the building is about to collapse or need major repairs (or if insurance, property taxes, or association fees skyrocket), you have the option to move out of an apartment without financial loss, rather than being stuck with a worthless condo that no one will buy, as now happening in Florida.

So what’s the big deal with condos? Low interest rates? LOL.


3 posted on 12/20/2024 7:36:57 AM PST by BobL
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To: george76

“up to several tens of centimeters” of settlement


Since this is happening in the U.S. wouldn’t ‘several inches’ be informative? And if one insists on using the oh-so-superior metric system, why not say ‘several decimeters’ of settlement?


4 posted on 12/20/2024 7:38:43 AM PST by hanamizu ( )
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To: george76

BTTT


5 posted on 12/20/2024 7:42:28 AM PST by nopardons
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To: george76

IIRC, the bedrock in Miami is primarily limestone (Miami Oolite), a porous rock formed from reefs and marine sediments. And the limestone under the barrier islands is more porous than that of the mainland, increasing possible problems from groundwater flow, saltwater intrusion, etc., making it less stable for high-rise foundations.


6 posted on 12/20/2024 7:56:40 AM PST by RoosterRedux (Emerson (paraphrased): "If you strike at the king, don't fail." The Democrats failed. )
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To: george76
Matthew 7:24-27

24 “Therefore everyone who hears these words of mine and puts them into practice is like a wise man who built his house on the rock. 25 The rain came down, the streams rose, and the winds blew and beat against that house; yet it did not fall, because it had its foundation on the rock.

26 But everyone who hears these words of mine and does not put them into practice is like a foolish man who built his house on sand. 27 The rain came down, the streams rose, and the winds blew and beat against that house, and it fell with a great crash.”


7 posted on 12/20/2024 7:58:12 AM PST by KarlInOhio (Now unburdened by the Biden/Harris administration that has been.)
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To: hanamizu

To be dramatic, they could express the settlement in millimeters.


8 posted on 12/20/2024 7:59:44 AM PST by fwdude (Why is there a "far/radical right," but damned if they'll admit that there is a far/radical left?)
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To: hanamizu

“And if one insists on using the oh-so-superior metric system, why not say ‘several decimeters’ of settlement?”

Centimeters, the more common term, is used.


9 posted on 12/20/2024 8:07:40 AM PST by TexasGator
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To: george76
Umm, not sure I'd want to live in a Miami condo.

On June 24, 2021, at approximately 1:22 a.m. EDT,[a] Champlain Towers South, a 12-story beachfront condominium in the Miami suburb of Surfside, Florida, United States, partially collapsed, causing the deaths of 98 people.

10 posted on 12/20/2024 8:09:16 AM PST by spankalib
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To: BobL

I can only speak on my observation as I do live in the area. The majority of these condos are 2nd and 3rd homes. At certain times of the year, some structures will be nearly 90% shuttered. The restrictions that come with them become a positive when you only live there part time.


11 posted on 12/20/2024 8:10:58 AM PST by bak3r
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To: george76
High-rises expect to see "up to several tens of centimeters" of settlement "during and immediately after construction," the University of Miami Rosenstiel School said

Ummmmm, we use inches in the United States - guess 'several tens of centimeters' sounds like a bigger number than 'a little under three inches'.

12 posted on 12/20/2024 8:12:06 AM PST by GOPJ (https://files.catbox.moe/rwi6a2.jpeg //files.catbox.moe/14hch9.jpg <img src="[image url]">)
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To: hanamizu

‘Cause writer is a pretentious TWOT and writing for the EU.


13 posted on 12/20/2024 8:20:16 AM PST by bobbo666
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To: george76

A house built on sand .....


14 posted on 12/20/2024 8:25:13 AM PST by SkyDancer ( ~ Am Yisrael Chai ~)
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To: george76

Are we sure it’s not caused by climate change? </sarc>


15 posted on 12/20/2024 8:25:17 AM PST by smokingfrog ( sleep with one eye open (<o> --- )
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To: BobL

You WANT your property manager to have a key - for too many reasons to list.

One being to save your property/belongings if you’re not around when something bad happens.


16 posted on 12/20/2024 8:29:21 AM PST by AAABEST (That time Washington DC became a corrupted, existential threat to us all...)
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To: george76

17 posted on 12/20/2024 8:29:32 AM PST by montag813
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To: george76
"The bedrock underlying much of Manhattan consists of three rock formations: Inwood marble, Fordham gneiss, and Manhattan schist, and is well suited for the foundations of Manhattan's skyscrapers."

So why are they building skyscrapers on sand in Florida?

18 posted on 12/20/2024 8:31:08 AM PST by MinorityRepublican
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To: george76

Couldn’t see that one coming, could we?


19 posted on 12/20/2024 8:40:39 AM PST by metmom (He who testifies to these things says, “Surely I am coming soon." Amen. Come, Lord Jesus)
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To: KarlInOhio

GMTA


20 posted on 12/20/2024 8:41:26 AM PST by metmom (He who testifies to these things says, “Surely I am coming soon." Amen. Come, Lord Jesus)
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