This development is a modular residential development designed to serve a diverse population of veterans and their families who have recently experienced homelessness. The development includes construction of a six-story building. This is the first building constructed as part of the master-planned redevelopment of Treasure Island.
Site Square Footage: 104,500 sq. ft.
Date Completed: 2022
Construction Cost: $54 million
Client: Chinatown Community Development Center & Swords to Plowshares
Structural Engineer: Structus, Inc.
Civil Engineer: Luk & Associates
General Contractor: Cahill Contractors
The master developer implemented several geotechnical mitigation measures to address the presence of loose sand fill, which is susceptible to cyclic densification and liquefaction, as well as the presence of highly compressible clay (Bay Mud) underlying the site. The mitigation measures include dynamic compaction to densify the sand fill, along with the implementation of a wick drain and surcharge program to pre-consolidate the Bay Mud.
Rockridge Geotechnical (RG) reviewed the performance of the mitigation measures and provided input on the wick drain and surcharge program. RG also performed a supplemental geotechnical investigation to confirm subsurface conditions following the implementation of mitigation measures and to develop design-level geotechnical recommendations.
RG provided consultation during the final design and construction permit application. RG is currently providing geotechnical observation and testing services during the construction of the project.