Four Seasons Hotel and Tower

San Francisco, CA

Concrete diaphragm (slurry) walls provide watertight basement walls and permanent support for a 60’ deep parking garage in downtown San Francisco.

Case’s prime contract with the Project Management team included both the initial site preparation services – removal of old building foundations and tie-back anchors intersecting the wall alignment – and a new 36” thick slurry wall extending to depths of 125’. Temporary support was later provided by internal bracing and tie-back anchors. With a wall surface area of 120,000 sf., this project is currently the largest commercial application of slurry wall construction in California.

Developer: Millennium Partners
Construction Manager: Bovis Construction Corporation
Engineer: DiSimone Consulting Engineers
Architect: Gary E. Handel & Associates