O’Terra Geotech Group, Inc. was founded in January, 2003 as full service firm with expertise in geotechnical and materials engineering with headquarter in Concord, California.
We provide geotechnical engineering services in the greater nine Bay Area counties.
Our professional team consists of licensed Geotechnical and Civil engineers and Engineering geologist, registered in the State of California with decades of experience in geotechnical and materials engineering in San Francisco Bay Area.
We are specialized in geotechnical consulting services for residential and commercial developments. We are expert in preparation of geotechnical (soil) and foundation reports for residential construction to multi-story condominiums and commercial building construction.
We specialize in determining and finding cost effective way to design and build foundations for residential and multi-story commercial buildings and recommending solution to resolve foundation distress problems. We specialized in landslide investigation and recommend cost effective repair strategies. We also specialize in designing various types of retaining walls (on spread footing or drilled piers), Geo-synthetic reinforced embankment, below grade structures, and performing slope stability, seismic, and liquefaction analyses.