Services & Projects
Berlex Biosciences
Contra Costa County
Treadwell & Rollo provided geotechnical services for design and during construction of a large research and development center located near the Hayward Fault. We performed a detailed geotechnical investigation and ...
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Brentwood Civic Center
Contra Costa County
Treadwell & Rollo is providing geotechnical services during design and construction of the new Brentwood Civic Center project in Brentwood, California. Treadwell & Rollo performed a review and value ...
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Carquinez Bridge Temporary Trestle Piles
Contra Costa County
Under contract to Power Engineering, Treadwell & Rollo provided geological and geotechnical services for the California Department of Transportation for the new Carquinez suspension bridge west of the existing southbound ...
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Conoco Phillips Marine Terminal Upgrade and MOTEMS Evaluation
Contra Costa County
This T-shaped, 1250-foot-wide terminal on the south side of the Carquinez Straits was upgraded to moor larger tankers. Treadwell & Rollo performed two field investigations (in 2000 and 2008), including ...
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John Muir Medical Center Expansion
Contra Costa County
Treadwell & Rollo performed a geologic hazards evaluation, seismic studies, and geotechnical investigation for the John Muir Medical Center building expansion. This project included two hospital towers with a utility/service ...
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Pleasant Hill BART Station – Transit Village
Contra Costa County
Treadwell & Rollo performed the geotechnical investigation for proposed Transit Village, an approximately 18-acre site around BART that will include commercial (retail and office) and residential structures. The project consists ...
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Tesoro Golden Eagle Refinery - Avon Wharf Expansion and MOTEMs Evaluation
Contra Costa County
The Avon Wharf, in Suisun Bay, is an oil terminal approximately 1,300 feet offshore consisting of a 950-foot-long concrete and timber pier. Treadwell & Rollo provided geotechnical services and observation ...
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