WTC transportation hub taking shape in NYC
Reaching three levels underground, the 800,000-square-foot complex will link the PATH trains with Hudson River ferries to New Jersey, and 11 city subway lines - all already operating.Under construction are the two wing-like sections to be separated by a special feature: a skylight that will open like a huge eye.
On each Sept. 11, this "oculus" will be aligned so direct sunlight will shine through the glass at 10:28 a.m. - the time when the second tower collapsed in 2001.
The $3.9 billion cost of the steel-concrete-and-glass structure falls into a budget under the Federal Transit Administration and the Port Authority of New York and New Jersey that owns the trade center site.Plate compared the hub's 150-foot high main hall to that of Grand Central Terminal, with 100,000 square feet of upscale retail space planned to serve about 250,000 World Trade Center commuters passing through each day.
More than 12,000 tons of steel is needed to complete the complex, with up to 500 people working there in any given 24-hour period.On Wednesday, they braved a heat index that hit 100 to keep the labyrinth of construction equipment, scaffolding and cranes going.
Among the engineering challenges was the destruction wreaked by Superstorm Sandy last October, Plate said.
Salty water flooded the lower level, destroying electrical conduits and half-built escalators that had to be entirely replaced.
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NEW YORK (AP), Verena Dobnik, July 23, 2013,
http://www.wtc.com/news/wtc-transpor...g-shape-in-nyc