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New sinking in tilting San Francisco high-rise halts restore | State & Regional



This September 26, 2016 photo shows the Millennium Tower in San Francisco. A $ 100 million fix to keep the San Francisco luxury skyscraper from sinking and toppling even more is suspended while engineers try to figure out why the building fell another inch during the repair.



New sinking in tiltable high-rise in San Francisco stops repair

On this September 26, 2016, file photo, independent soil engineers are installing data collection equipment and taking soil samples outside of the Millennium Tower in San Francisco. A $ 100 million fix to keep the San Francisco luxury skyscraper from sinking and toppling even more is suspended while engineers try to figure out why the building fell another inch during the repair.

Associated press

SAN FRANCISCO – A $ 100 million fix to prevent a luxury San Francisco skyscraper from sinking and tipping even more is suspended while engineers try to figure out why the building fell another 2.5 centimeters during the repair .

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Doug Elmets, spokesman for the Millennium Tower, said in a statement that the pile installation to reinforce the building’s foundation has been suspended for two to four weeks in an attempt to understand why the “increased settlement rate and means available to mitigate it” is .

Elmets said the building was safe, the San Francisco Chronicle reported Thursday.

The 58-story tower opened to fanfare in 2009 and all 419 apartments quickly sold out. Celebrity residents included former San Francisco 49er Joe Montana, late venture capitalist Tom Perkins, and Giants outfielder Hunter Pence.

But by 2016, the building had sunk four inches into the soft ground and landfill of San Francisco’s dense financial district. It was also sloped, creating a 5 cm slope at the base and a 15 cm slope at the top. Local residents sued the developer and designers.

A confidential agreement reached with homeowners last year included $ 100 million to install 52 63,500 kilograms of concrete piles to anchor the building 76 meters into the bedrock. Piles provide foundation support.

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