Millenium Tower in San Francisco, image - MLS
Miscellaneous

San Francisco Millennium Tower Has Settled 16 Inches

Millenium Tower in San Francisco, image - MLSThe residential high-rise Millennium Tower in San Francisco has settled a total of 16 inches since opening, 2 inches deferentially.  A spokesman for the tower owner blames the settlement on the excavation next door for the Transbay Transit Center, a  $2.4 billion dollar project being constructed 60 feet underground.

However, the Transbay Joint Powers Authority (Transbay) hired geotechnical firm Arup in 2010.  Their initial report indicated that the tower had already settled 10 inches by the time excavation began for the Transit center.  Arup seems to have been tasked with design, installation, and perhaps monitoring of a geotechnical monitoring program, some information on the scope is available in a 2012 presentation given by Arup available on the Transbay website.

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Available Resources

Geotechnical Monitoring Technology Seminar

Hexagon Geosystems is offereing an inexpensive short course on geotechnical monitoring in Denver in on July 21.  Time is short, but it’s not too late to register. July 21 2016 – Hexagon Geosystems – Denver, […]