Progress at 4 World Trade Center
By Christina Bohnstengel

Four World Trade Center, also known as T4, is finally making progress that people can see and more is on the way.
The project was delayed last year after geologists determined that rocks found at the site including red shale, sandstone and gray basalt were deposits from a 20,000-year-old glacier. Excavations revealed a glacier pit that had to be filled with high-grade concrete, causing expensive and unexpected scheduling delays.
But the real work has started again and Scott Thompson from Silverstein Properties who is the leaseholder and developer says that it’s full steam ahead.
With the tower’s sub-cores already forming, the first of three tower cranes will make an appearance in mid-February. Thompson indicates that in the coming months the cores will raise several levels, creating the sub-grade mechanical floors and lower level retails concourses. Other infrastructure features like electrical and the fuel cell are also underway. The tower base is expected to be visible above street level by September.
Japanese architect Fumihiko Maki used a minimalist approach in designing the 64-story tower that complements Daniel Libeskind’s four-tower plan. Maki’s T4 draws attention because of features like the sleek glass façade and use of parallelogram and trapezoidal shaped-floors. The scheduled completion date for Maki’s design of 4 World Trade Center is slated for 2012.
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