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Related: Editorials & Other Articles, Issue Forums, Alliance Forums, Region ForumsThe tilting on San Francisco's Millennium Tower is causing a plumbing problem
https://www.sfgate.com/local/article/millennium-tower-sinking-plumbing-san-francisco-16485349.phpThe tilting on San Francisco's Millennium Tower is causing a plumbing problem
A new problem may be bubbling up for residents of the lurching Millennium Tower in downtown San Francisco.
The building's tilt now about 22 inches to the west due to the northwest corner sinking about 18 inches may be causing lateral sewage pipes to not drain correctly and has already resulted in some plugging on the third floor, according to a letter from the chief engineer to the city, obtained by NBC News.
A separate San Francisco Department of Building Inspection report filed Aug. 27, obtained by SFGATE, saw "evidence of water intrusion through the basement walls of the subterranean levels and signs of past settlement," from the tower's earlier sinking.
"The team identified several areas in which seals on building drains exiting the building appeared to be leaking ground water from outside the building to the inside," the report reads. The team also observed "water seepage from the basement wall into the sewage ejector room."
The letter states that the inspectors "did not find any observable variation" from their previous inspection in March.
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Chief engineer Ronald Hamburger added, there are not current effects that compromise either building safety or habitability. As settlement and tilting has now returned to pre-construction levels, we do not anticipate any will occur.
Wounded Bear
(58,620 posts)jimfields33
(15,758 posts)SunSeeker
(51,546 posts)Tetrachloride
(7,826 posts)San Francisco should give them a deadline of say: Jan 31.
Mr.Bill
(24,263 posts)I suppose some owners have rented them out, though. You couldn't pay me to live there.
Blue Owl
(50,330 posts)abqtommy
(14,118 posts)this before? Yes, yes we have.
marble falls
(57,063 posts)BlueJac
(7,838 posts)fescuerescue
(4,448 posts)Not San Francisco.
randr
(12,409 posts)Demovictory9
(32,444 posts)randr
(12,409 posts)I can see how they might be able to attach it to bedrock. It is the elevating that could create more stress.
Demovictory9
(32,444 posts)Archae
(46,311 posts)On my trip to CA.
It does look a little cockeyed.
Otherwise it looks like most of the rest of the buildings around it.
electric_blue68
(14,848 posts).... but they never tilted... I worked on the 73rd flr of Tower 2 (South).
I was told in high winds you could see your coffee or tea very slowly slosh back, and forth. I, however, never had coffee, or tea so I never saw that!
On those days, though, I could hear the plumbing
creaking in the women's bathroom. Gah! 😯
I guess they better demolish this building sooner than later! 😮
haele
(12,645 posts)Other skyscrapers along Mission have their pilings down 200 ft. to get to bedrock. The waterfront area is notorious for being fill and mud to as much as 80 ft. down in some places.
Complaints are that the Millennial Tower only went down to the hardened sandstone layer above the bedrock -60 to maybe 120 ft. Within earthquake standards for 2005 for that height of building, but still a bit weak.
There were some slight signs of foundation slipping as far back as 2011. This is just "meeting the minimum standards" to get the building approved and up as quickly as possible.
Haele