16-story LEED Gold high-rise tower in Downtown Berkeley

Located approximately 1/2-mile from Hayward Fault

Previously developed site with subsurface foundations, basements, and undocumented fills and debris

Complex and congested site in densely developed urban area 

Subsurface obstructions and undocumented fills and debris

Irregular bedrock contact with variable rock quality

Deep foundation system with large quantity of auger-cast piles in dense groups

Developed resourceful investigation plans and research for design and site characterization

Assessment and consultation regarding subsurface obstructions and undocumented materials, providing economical solutions

Verified embedment depths and rock qualities needed for performance, with pre-production pile testing