Providing premier environmental and geotechnical solutions since 1988.

215 Fremont Street

San Francisco County

Treadwell & Rollo completed Article 22A environmental and geotechnical investigations for the renovation of the 215 Fremont building.  Site characterization for suspected soil and groundwater contamination included testing of stockpiled ...

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301 Mission Street

San Francisco County

Treadwell & Rollo performed geotechnical, environmental, and earthquake services for this 60-story tower with retail and living space, 12-story structure with office and living space, 5-story structure with retail and ...

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Neuroscience Lab, Building 19a, UCSF Mission Bay Campus

San Francisco County

Reclaimed in the 1880s, the Building 19a site in the new UCSF Mission Bay campus is underlain by heterogeneous fill, weak and compressible Bay Mud, dense sand, and bedrock. ...

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City College of San Francisco (CCSF) Chinatown/North Beach Campus

San Francisco County

Treadwell & Rollo performed a geotechnical investigation, geologic hazard evaluation, and site-specific seismic response study for the Chinatown/North Beach Campus of City College of San Francisco (CCSF) in San Francisco, California. ...

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EcoCenter

San Francisco County

Located at Heron's Head Park, a former landfill, this urban educational center was built using recycled materials and boasts a vegetation roof. Now open, the building operates 100 percent by ...

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Four Seasons Hotel and Tower

San Francisco County

Treadwell & Rollo performed environmental, geotechnical and earthquake engineering services for this 34-story, mixed-use development that includes a hotel, luxury residential condominiums, a fitness facility, upscale retail shops, and subgrade parking. We ...

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J. David Gladstone Institute – Parcel 2, Blocks 41-43, Mission Bay

San Francisco County

Treadwell & Rollo performed a geotechnical investigation to evaluate subsurface conditions at the site and provided geotechnical recommendations for this six-story laboratory and research facility.  We provided recommendations for pile ...

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One Rincon Hill

San Francisco County

Completed in 2008, the 60-story South Tower of One Rincon Hill is the tallest residential building in California; the North Tower will be 47 stories when completed in 2010.  The ...

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The Radiance (Blocks 10 and 10A) Mission Bay Residential Development

San Francisco County

This two-building residential development required environmental and geotechnical services.  Our engineers evaluated seismic hazards, settlement and foundation support. Once we ascertained that there was a potential for liquefaction, Rapid Impact ...

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