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Demovictory9

(32,449 posts)
Wed Aug 25, 2021, 07:09 PM Aug 2021

Repairs of sf millenial tower halted after it sinks an inch in one week!!

https://www.sfgate.com/local/article/Millennium-Tower-sinking-repairs-cracks-sf-16410954.php?IPID=SFGate-HP-CP-Spotlight



San Francisco's Millennium Tower fix halted after further sinking observed


Justin Sullivan/Getty Images
The major construction fix to stop San Francisco's beleaguered Millennium Tower from sinking further into the earth has been halted after the building suddenly sunk another inch within a few weeks, as first reported by NBC Bay Area.

The $100 million “perimeter pile upgrade” project began in November, and was seen as a final resolution to the lopsided building's woes after an inspection in 2018 revealed the northwest corner had descended at least 18 inches into the bay fill at Mission and Fremont streets.

The fix has been likened to putting a bumper jack next to a flat tire, and involves the installation of piles 250 feet deep along the north and west sides of the tower, to be tied beneath the sidewalk to the original foundation.


That plan has now been put on pause after the unexpected sinking observed in recent weeks.

NBC's report claims that after thirty-nine piles of the 52 piles had been installed, something then went "seriously wrong." That alleged sudden drop of an inch on the Fremont Street side occurred after crews had reportedly drilled half way down to bedrock to install new piles, and translates to five inches of lean on the 58th floor.


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Repairs of sf millenial tower halted after it sinks an inch in one week!! (Original Post) Demovictory9 Aug 2021 OP
It's a lot bigger than that condo building in Florida. NT mahatmakanejeeves Aug 2021 #1
its huuuuge Demovictory9 Aug 2021 #2
It's a good thing that the RepubliQans want..... MyOwnPeace Aug 2021 #3
If I lived in that motherfucker, I would be OUT OUT OUT Celerity Aug 2021 #4
Me, too. Do not pass go, do not collect $200. Just leave. Arkansas Granny Aug 2021 #7
couple highlighted on.60.min.a few yrs ago..sold at loss and left Demovictory9 Aug 2021 #12
I'd love to see the real estate listing for that one.... PoliticAverse Aug 2021 #18
Act now, this one won't last long! NameAlreadyTaken Aug 2021 #26
Sales arent brisk. One sold in july after price cut Demovictory9 Aug 2021 #34
Grotesque!!! 😬😳🤭 ailsagirl Aug 2021 #21
In 2015 I helped move a couple in the millennium towers kimbutgar Aug 2021 #5
I dunno but maybe if it starts sinking more you want to hurry up the stop sinking project PoliticAverse Aug 2021 #6
It's when you decide whether to continue the "stop sinking" project or... JHB Aug 2021 #14
I have a feeling that building is doomed. smirkymonkey Aug 2021 #31
Precisely JHB Aug 2021 #32
I'm guessing that the "stop sinking" project, ramming i-beams into the earth, ... JustABozoOnThisBus Aug 2021 #36
That's what I was thinking. lagomorph777 Aug 2021 #40
Disturbing the already unstable sand might indeed make the problem worse before it gets better. PoliticAverse Aug 2021 #41
Maybe they disturbed a void in the landfill Klaralven Aug 2021 #43
I wouldn't want to be anywhere near it. lpbk2713 Aug 2021 #8
But think what a great tourist attraction it could become Ligyron Aug 2021 #38
I used to work in a 51 story very thin building in New York City. During high wind days... PoliticAverse Aug 2021 #42
Note to self: stay the hell away from Mission and Fremont Auggie Aug 2021 #9
I would.hate living in.bldg on leaning side Demovictory9 Aug 2021 #13
Got earthquakes to think about too Auggie Aug 2021 #15
So today I learned they are building skyscrapers in a earthquake zone on sand... PoliticAverse Aug 2021 #16
That's nuts. I worked next door to 101 California for three years ... Auggie Aug 2021 #19
Oh hell yes Hekate Aug 2021 #27
They're going to have to tear it down. The insurance payouts will be humongous. brush Aug 2021 #10
this reminds me of a tv show called " thunderbirds " epi called terror in nyc AllaN01Bear Aug 2021 #11
Ask and ye shall receive JHB Aug 2021 #17
Oh Man I am not going to get any work done now. NT cinematicdiversions Aug 2021 #25
Well, not for 48 minutes, anyways JHB Aug 2021 #29
Aaaahhhhh memories dickthegrouch Aug 2021 #30
The classic line - "The masks! Put the masks on!" muriel_volestrangler Aug 2021 #39
Hilarious to see puppets smoking Demovictory9 Aug 2021 #45
The repairs are to sink the pylons into the granite which should have be done in the first place PortTack Aug 2021 #20
There is no way to tear down a building this size. They will have to implode it. localroger Aug 2021 #24
The bedrock is a dirty Franciscan Complex sandstone (greywacke) Brother Buzz Aug 2021 #35
Evacuate the sucker and tear it down. Martin68 Aug 2021 #22
+10000000000000000 Celerity Aug 2021 #28
eek barbtries Aug 2021 #23
OK that's terrifying Withywindle Aug 2021 #33
Time to evacuate. NT ecstatic Aug 2021 #37
Why weren't the piling required to be set into bedrock instead of sand ripcord Aug 2021 #44

MyOwnPeace

(16,925 posts)
3. It's a good thing that the RepubliQans want.....
Wed Aug 25, 2021, 07:18 PM
Aug 2021

to do away with too much 'government regulation' - otherwise we could have building collapsing and people be poisoned by polluted water and killed by collapsing dams and ...........

Demovictory9

(32,449 posts)
12. couple highlighted on.60.min.a few yrs ago..sold at loss and left
Wed Aug 25, 2021, 08:15 PM
Aug 2021

I respect their decision. They couldnt tolerate living in the bldg

PoliticAverse

(26,366 posts)
18. I'd love to see the real estate listing for that one....
Wed Aug 25, 2021, 08:36 PM
Aug 2021
Condo in beautiful high rise building with evolving views. Motivated seller.

kimbutgar

(21,130 posts)
5. In 2015 I helped move a couple in the millennium towers
Wed Aug 25, 2021, 07:25 PM
Aug 2021

And before the news came out. When we put a box on the floor it slid a little across the floor. We kept doing this and noticed it happened several times. We laughed saying it’s probably a ghost. But it kind of freaked me out. I wasn’t surprised when I heard about the sinking considering it was built on landfill not solid rock.

PoliticAverse

(26,366 posts)
6. I dunno but maybe if it starts sinking more you want to hurry up the stop sinking project
Wed Aug 25, 2021, 07:27 PM
Aug 2021

rather than stop it.

JHB

(37,158 posts)
14. It's when you decide whether to continue the "stop sinking" project or...
Wed Aug 25, 2021, 08:26 PM
Aug 2021

...or start the "begin dismantling" project.

When a fundamental part of the building's foundation is not acting as anticipated in the plans, you have to decide whether a fix will actually fix it, or if it needs to come down so it's not a hazard to everything in the area.

 

smirkymonkey

(63,221 posts)
31. I have a feeling that building is doomed.
Wed Aug 25, 2021, 11:54 PM
Aug 2021

Even if it doesn't collapse, if it is the perception of most buyers/investors that it eventualy will, they will avoid it like the plague and it's doomed all the same. They might as well just pull the plug and write it off.

JHB

(37,158 posts)
32. Precisely
Wed Aug 25, 2021, 11:59 PM
Aug 2021

Even if reinforcement can correct the flaws in its design, lack of faith that changes will sufficiently compensate for it will be quite sufficient to doom it in terms of economic viability.

JustABozoOnThisBus

(23,338 posts)
36. I'm guessing that the "stop sinking" project, ramming i-beams into the earth, ...
Thu Aug 26, 2021, 06:15 AM
Aug 2021

... might create vibrations that cause the building to sink faster.

It's a race to some kind of finish.

PoliticAverse

(26,366 posts)
41. Disturbing the already unstable sand might indeed make the problem worse before it gets better.
Thu Aug 26, 2021, 01:17 PM
Aug 2021

A literal race to the bottom.

lpbk2713

(42,753 posts)
8. I wouldn't want to be anywhere near it.
Wed Aug 25, 2021, 07:36 PM
Aug 2021

Last edited Wed Aug 25, 2021, 08:42 PM - Edit history (1)



I would jump at every loud noise or tremor.





PoliticAverse

(26,366 posts)
42. I used to work in a 51 story very thin building in New York City. During high wind days...
Thu Aug 26, 2021, 01:20 PM
Aug 2021

you'd hear creaks, clicks and pops all day. It was like being in a movie on an old wooden ship.

Auggie

(31,163 posts)
15. Got earthquakes to think about too
Wed Aug 25, 2021, 08:26 PM
Aug 2021

I lived in S.F for 18 years. Loved it! But I also lived under the threat of seismic activity, experiencing one large one in 1989 and few small rollers after and before. Leaving, admittedly, was a bit of relief.

San Francisco will be Hell on Earth when The Big One strikes. Ground zero just might be Mission and Fremont.

PoliticAverse

(26,366 posts)
16. So today I learned they are building skyscrapers in a earthquake zone on sand...
Wed Aug 25, 2021, 08:32 PM
Aug 2021
The foundation at 301 Mission was built into deep, dense sand but not bedrock, unlike other downtown towers. (Though many other large downtown buildings are also constructed in the same way, including the Embarcadero Center, SFMOMA, the Marriott and 101 California.)

Auggie

(31,163 posts)
19. That's nuts. I worked next door to 101 California for three years ...
Wed Aug 25, 2021, 08:38 PM
Aug 2021

watched it being built from the ground up. Also worked in Embacadero Center.

That's why I was happy to leave San Francisco.

brush

(53,764 posts)
10. They're going to have to tear it down. The insurance payouts will be humongous.
Wed Aug 25, 2021, 07:45 PM
Aug 2021

There will be bankruptcies. And considering it's in San Francisco where earthquakes are not that unusual, the tear down should start soon.

AllaN01Bear

(18,159 posts)
11. this reminds me of a tv show called " thunderbirds " epi called terror in nyc
Wed Aug 25, 2021, 08:01 PM
Aug 2021

moving the empire state building and it collapses . hem . but this building is standing still.

PortTack

(32,755 posts)
20. The repairs are to sink the pylons into the granite which should have be done in the first place
Wed Aug 25, 2021, 09:49 PM
Aug 2021

Tallest bldg in SF and they thought it would be “okay” to not go down to the granite..simply amazing!

localroger

(3,626 posts)
24. There is no way to tear down a building this size. They will have to implode it.
Wed Aug 25, 2021, 10:08 PM
Aug 2021

Not that much of a risk to be on the "lee" side of its tilt since it will come straight down, as 9/11 demonstrated. But yeah a lot of bad ideas went into building it and apparently those same bad ideas went into the building of some other SF skyscrapers. That will make a hell of a dent in an already weird SF real estate market.

Brother Buzz

(36,416 posts)
35. The bedrock is a dirty Franciscan Complex sandstone (greywacke)
Thu Aug 26, 2021, 03:13 AM
Aug 2021

The only granite you're going to find in the Bay Area is west of the San Andreas fault, like the granite found out at point Reyes which originated in the Baja California region. Of course there's a boatload of granite in the Sierra, but that's totally another story.

barbtries

(28,787 posts)
23. eek
Wed Aug 25, 2021, 10:07 PM
Aug 2021

my son's best friend since grade school lives there. he just got married, is 29 years old, and I really hope he moves out of there!

Withywindle

(9,988 posts)
33. OK that's terrifying
Thu Aug 26, 2021, 01:17 AM
Aug 2021

I am not an architect or an engineer so I don't know exactly HOW terrifying, but I would not want to be anywhere near that building, much less in it.

ripcord

(5,346 posts)
44. Why weren't the piling required to be set into bedrock instead of sand
Fri Aug 27, 2021, 01:19 PM
Aug 2021

And how many others were built to that code?

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