1900 Broadway

1900 Broadway

– Oakland, California –  This excavation in downtown Oakland extended to depths of over 30 feet.  Limitations and added challenges included multiple adjacent structures, in particular the 19th Street BART Station located almost directly behind the shoring...
30 Otis

30 Otis

 San Francisco, California  30 Otis is the latest addition to San Francisco’s revitalization of Van Ness Street. The thirty foot excavation involved a soil-cement mix cut-off system, soldier beams, and tiebacks. Slant-drilled underpinning was used to support the...
300 Grant

300 Grant

San Francisco, California This excavation within an existing building basement in San Francisco, CA involved careful coordination between the shoring, demolition, and new construction. Limited access on site promoted creative solutions for the temporary support of...
1100 Broadway

1100 Broadway

Oakland, California This 20 foot deep excavation at the corner of 12th St and Broadway in Oakland, CA consisted of soldier beams with wood lagging, tiebacks, internal bracing, and underpinning. The 12th street BART station is only 4 feet beyond the site property line...
555 Mission Street

555 Mission Street

San Francisco, California The 555 Mission project included soil-cement mix “cut-off” shoring and slant-drill underpinning with jet-grout cut-off. The excavation depth was approximately 30-feet. Our design constraints included the presence of Bay Mud soil, high...
UCSF Parnassus

UCSF Parnassus

San Francisco, California This project involved a combination of temporary and permanent shoring methods. The temporary shoring system consisted of soil nail and shotcrete walls. Hand-dug underpinning piers and tiebacks were used to underpin the existing spread...