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Much of the San Francisco Bay Area's waterfront is built on artificial fill placed over soft bay deposits. This ground is susceptible to liquefaction and lateral spreading during a design earthquake, which threatens the stability of essential shoreline infrastructure. This presentation reviews the geotechnical methods used to mitigate these hazards, including ground improvement, structural retention, pile pinning, and setback with numerical modeling. The methods are presented through four ENGEO projects: Potrero Power Station, Port of San Francisco Wharf J9, the Treasure Island Wastewater Treatment Plant, and the WETA Central Bay O&M Facility. Each case covers the site conditions, the mitigation approach and alternatives evaluated, and the resulting performance.
Speaker Chris Stouffer, GE, QSD, is a Senior Engineer at ENGEO, providing geotechnical design and construction services for public- and private-sector projects throughout the Bay Area. His experience includes foundation design, ground improvement, and construction quality control, including extensive work on the Treasure Island redevelopment. He holds a master’s degree in GeoSystems Engineering from UC Berkeley and a bachelor’s degree in civil engineering from Villanova University.