Project case study
CM/GC: City of Los Angeles, Sixth Street Viaduct Replacement
Replacing a beloved Los Angeles bridge with an equally iconic landmark
When the famed 1932 Sixth Street Bridge needed replacing due to alkali-silica reaction, the City of Los Angeles embarked on a plan to establish a new, iconic landmark to continue its tradition of historical significance. Skanska rose to the challenge under a CM/GC contract to deliver the new $364 million replacement.
The 3,500-foot-long viaduct spans the Los Angeles River, multiple railroad tracks, U.S. 101 and several local streets. Our team provided extensive preconstruction phase maintenance of traffic planning and construction sequencing development to deliver the complex work.
The bridge utilized an elaborate temporary falsework system and intricate concrete formwork, designed by Skanska’s in-house temporary engineering team.
Skanska collaborated with local stakeholders, Caltrans, and multiple rail and transit agencies to safely plan and execute the work within a highly congested site—while maintaining live vehicle, rail and commuter traffic.
Our team also leveraged in-house BIM and virtual design and construction modeling to create visual tools for construction planning and clash detection.
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