Rockridge Geotechnical (RG) performed the geotechnical investigation and provided recommendations for the design of the mixed-use building at 1951 Shattuck Avenue. The 12-story building will have one basement level, which will house all the automobile parking for the project through three-level-high puzzle stacker pits. The development will also include at-grade retail and amenity spaces. Excavation for the basement and foundation will extend up to 30 feet below-grade, which is about 22 feet below the design groundwater table.

The primary geotechnical concern for the project was the potential for lateral movement and settlement of adjacent buildings and the Bay Area Rapid Transit (BART) substructure during the excavation and dewatering required to construct the below-grade level. RG provided economical and feasible recommendations for the design of the shoring and underpinning of adjacent structures. RG concluded a reinforced concrete mat foundation would be the most appropriate foundation type to resist hydrostatic pressures and simplify installation of waterproofing. RG is currently providing geotechnical services during the construction of this project.