Capability:
Cranes
Special Projects
Location:
San Francisco Bay Area, California
Client:
American Bridge/Fluor Enterprises (ABF)

Design Review of the Pacific Titan, formerly known as the Left Coast Lifter

Design assistance and engineering review for the largest barge crane ever deployed on the US Pacific Coast

When the 1989 Loma Prieta earthquake exposed the seismic vulnerability of the eastern span of the San Francisco-Oakland Bay Bridge, engineers determined the span would need to be replaced entirely. The new self-anchored suspension design required lifting sections weighing more than 1,700 tons into place — loads no existing floating crane on the Pacific Coast could handle. So, one was built. Liftech provided structural engineering design assistance and review services to American Bridge/Fluor Enterprises to help bring the Left Coast Lifter to life.

The Challenge

Building a floating crane capable of lifting 1,700-ton bridge sections required solving problems that had no existing playbook on the West Coast. The crane had to deliver extraordinary lifting capacity while remaining transportable and designed not just for the job at hand, but for ocean voyages across the Pacific and beyond. Coordinating fabrication across multiple countries added further logistical complexity to an already demanding engineering effort.

Our Approach

Liftech provided structural engineering consulting services to ABF for the crane structure, including technical specifications, design, and fabrication review. The design was a collaborative effort between ZPMC, Liftech, and ABF, with Liftech's role focused on ensuring the structure could meet its lifting demands while remaining safe and stable for long-distance transport. The crane was fabricated in China, the barge built in Oregon, and the two assembled before making the transoceanic journey to the Bay Area. The Left Coast Lifter went on to assist with bridge work on the Hudson River before being purchased by StorKran and renamed the Pacific Titan. Liftech's relationship with the crane continued, with StorKran engaging Liftech to provide engineering oversight for the Pacific Titan's journey back to the West Coast in 2025, a testament to the depth of expertise Liftech developed on the original project.

Featured Insight
The Left Coast Lifter earned three major structural engineering awards recognizing the innovation and complexity of its design: 2010 SEAONC Excellence in Structural Engineering Award, Study/Research Guidelines; 2010 SEAOC Excellence in Structural Engineering Award, Special-Use Structures; 2011 NCSEA Excellence in Structural Engineering Award, Outstanding Project — the highest honor in the program.
project details
Year completed
2009
location
San Francisco Bay Area, California
client
American Bridge/Fluor Enterprises (ABF)
services provided
Crane Design
Design-build
Mechanical Engineering
Crane Procurement
Structural Engineering

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