In San Francisco, high-profile project rising through collaboration

Transbay Transit Center site

Crews are gearing up to begin work on our $189 million project to erect the structural steel for the new Transbay Transit Center. This project will be one of our most visible in the San Francisco area, but even more importantly, One Skanska collaboration is making this undertaking possible.

“Without a true One Skanska effort this project would not be possible” said Project Manager Ryan Clayton. “This was a tight bid for us, but the difference came in combining Skanska Koch’s knowledge of complex steel erection, USA Civil’s regional large-scale infrastructure experience and USA Building’s expertise in building construction. Additionally, not one business unit or office would have the ability to staff this job properly on its own. It was absolutely necessary that we marry all our resources for success.”

With the win in place, months of planning will soon transition into two years of execution. Steel fabricators are already up and running and our first crane will be assembled in July. Steel will start to go up in late August. While the team hopes to make it look easy, a crew of 80-100 ironworkers will be needed, working in multiple shifts.

On top of that, challenging logistics will require excellent communication and planning throughout the project.

“All work must be done off of an access trestle that runs down center of building,” Clayton said. “We’re going to have to share that space with the excavation/bracing contractor, the foundation contractor and, ultimately, with the follow-on trades. There will be a lot to coordinate.”

The site footprint does the team no favors, either. The project is adjacent to a heavily-trafficked entrance and exit to the San Francisco-Oakland Bay Bridge, so street closures are not an option.

“We’re looking at 1,500 truckloads delivering 24,000 tons of steel over the life of the project, and there is nowhere on-site for laydown and storage,” Clayton said. “Loads need to be coordinated in from Bay Area staging to the hook, and it will all have to be just-in-time.”

That steel will be one of the defining features of the landmark terminal, which in and of itself is a challenge.

“Architecturally, this is a very unique structure with a lot of complex geometric features,” Clayton said. “It all comes together in a complicated configuration that needs to be fit up to within 1/16th of an inch or less. There is very little tolerance for misalignment.”

Steel erection is scheduled to wrap in early 2016.

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