Bosa Developments of Vancouver, BC, is one of the biggest companies presently redeveloping large areas of downtown San Diego. Bosa selected Condon-Johnson & Associates (CJA) to install shoring for the Santa Fe Station project.

The Challenge
The Santa Fe Station project consisted of a forty-five foot deep cut adjacent to the primary north-south rail line of Burlington Northern railway in San Diego County. The soil consisted of silty sand, which predominates the downtown geology.

The Solution
A shoring system of soldier pile and lagging was utilized to shore the site. The intricate wall setbacks indicate the accuracy possible when placing installations of this type.

Soldier piles were installed utilizing a drill/drive method. A Soil Mec 825 performed the drilling and the piles were subsequently driven with an ABI. Three rows of removable tiebacks were installed by duplex drilled methods utilizing Klemm 806’s.

The Result
CJA as shoring contractor, coordinated carefully with the excavating contractor and the dewatering contractor to deliver this project on time and under budget.

Featured Expertise:

Soldier Pile & Lagging