SAN FRANCISCO (KCBS) – The Millennium Tower in San Francisco is still sinking, but now engineers hired by the building’s developers have apparently come up with a fix.
KCBS and Chronicle Insider Phil Matier reports in Wednesday’s Matier and Ross column that this solution will reportedly stop the sinking and fix the building’s lean.
The plan involves drilling as many as 100 new piles down to bedrock from the building’s basement.
Cost of the plan would be somewhere between $100 million and $150 million, a far cry from the $1 billion some experts had anticipated.
The building has sunk one inch in the last seven months and a total of 17 inches since construction began in 2005.
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“The plan involves drilling as many as 100 new piles down to bedrock from the building’s basement.”… and I bet the current tenants are just going to LOVE listening to the noise, as they step over construction debris for five years.
Now I’m not an engineer but as this building was going up, it always concerned me that the building is 645 feet tall and the pilings only go down 60 to 90 feet into bay fill rather than 200 feet into bedrock. It just never felt right to me.