In a statement to KPIX, lead engineer Ron Hamburger admitted some of the sinking and tilting could have been avoided by halting construction earlier. In a letter to building officials, he also admitted the new test drilling that started this week could cause even more sinking.
But one thing is for sure: all the problems at Mission Street seem to be having an impact on property values. We found ten 10 condos listed for sale, all at discount prices. Some units have been on the market for months. Pyke believes concern over property values might be one reason why the Millennium Tower Association pushed to continue the job.
The Millennium Tower Association that represents homeowners is still not commenting. Interestingly though, we found an online presentation that Hamburger did in February for students at the University of Minnesota that seems to confirm property values are at the core of all this. Work on the " perimeter pile upgrade " fix was halted on Aug. The tower sunk another inch in just a few weeks in the early summer. A chart obtained by KPIX reportedly now shows that this accelerated sinking started as early as mid-May, though work was not halted until over three months later.
Geotechnical engineer Robert Pyke told the outlet this week that the work should have been stopped months earlier. However, Hamburger wrote that he believed "additional settlement through completion of casing installation would not be a problem. Hamburger went on to say that after settlement rates increased again in July, he recommended a moratorium on the installation of the larger inch casings so the team could observe the effect of the work after installing only the inch piles on Fremont Street.
A major construction project aimed at leveling San Francisco's leaning Millennium Tower was abruptly halted this week after officials noticed the building sank another inch in the past month, CBS San Francisco reports. Work began on the story condo tower, which first made headlines in , earlier this year.
The building had actually been sinking less in the past few years — but then began to sink again when work started earlier this year. Oakland consulting structural engineer David Williams told CBS San Francisco that the pause was a "no brainer" given the amount the building moved.
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