Shoring & Underpinning



UC Berkeley - Naval Architecture
Building Expansion, Berkeley

San Francisco-based Gensler Architects designed the new wing and restored the Naval Architecture Building in conjunction with historic preservation specialist Knapp Architects based in San Francisco. Bordered by the existing Northgate Hall, which houses the Graduate School of Journalism, and the College of Engineering's Sutardja Dai Hall, the Blum Hall complex is designed to integrate both craftsman and modernist architecture.

Rockridge Geotechnical performed a geotechnical investigation for the project and provided recommendations for temporary drilled soldier pile shoring and underpinning for excavation beneath the existing Naval Architecture Building, and foundation design of the new structures. We also provided geotechnical observation and testing services during construction.




Highland Hospital - Acute Tower Replacement Project, Oaklandhighlandhospital

Rockridge Geotechnical provided observation and testing services during construction of Alameda County's Acute Tower Replacement (ATR) Project at Highland Hospital in Oakland. Our services included providing geotechnical oversight during:

  • installation of soldier piles, lagging, and tieback anchors for the 21-foot-high temporary shoring system
  • performance and proof load testing of tieback anchors
  • drilled pier installation




River Oaks Apartments, San Jose

Rockridge Geotechnical provided geotechnical services during construction of this 293-unit apartment building that will consist of four stories of wood-framed residential units over a two-level concrete parking garage podium, the lower level of which is below grade. Our services included monitoring installation of a soldier pile-and-lagging shoring system installed through vibratory methods.







St. Joseph's Family Apartments, Oakland

Rockridge Geotechnical provided geotechnical services during construction of this affordable housing apartment building consisting of 2 to 4 stories of wood-framed residential units above a below-grade concrete podium parking level. The excavation was supported with drilled, cantilevered soldier pile-and-lagging shoring, which required casing the drilled holes to prevent granular soils from caving below the relatively shallow groundwater table.






Featured Shoring & Underpinning Projects

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St. Joseph's Family Apartments
River Oaks Apartments Highland Hospital-Acute Tower UC Berkeley-Naval Building
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