Oceanwide Center: Malcolm’s Expertise in Deep Foundations and Shoring
Situated next to the new Salesforce Transit Center at the intersection of First and Mission Streets in San Francisco, the Oceanwide Center is a mixed-use project comprising two high-rise towers. The 1st Street Tower will be a 910-foot-tall, 61-story building with a 4-story basement. The Mission Street Tower will be a 54-story building with a 3-story basement and will include the Waldorf Astoria Hotel.
Malcolm Drilling, serving as the design-build subcontractor for cut-off shoring walls, internal bracing systems, drilled shaft foundations, and excavation, was hired by the Swinerton/Webcor Joint Venture for this $1.6 billion project. Their comprehensive scope includes the installation of 330-foot-deep drilled shafts with up to 60-foot-deep rock sockets. Malcolm utilized Bauer BG50 top drives and Leffer Oscillators to case to the top of the rock on all the drilled shafts. The temporary shoring involves the installation of up to 140-foot-deep CSM panels surrounding the two buildings that will be built on the site. The shoring wall also acted as a partial cut-off wall for the higher groundwater levels. Internal bracing is used to support the excavation, which extends up to 74 feet below grade.
