Skyscraper over moving trains (video)

Instructional Video of the Day: How to Build Skyscrapers Over Moving Trains – 2:46 min video shows method of construction to be used by ‘mega-developer’ Brookfield in Manhattan West.

The company intends to develop two 60-story towers without interrupting train traffic, though a dozen tracks connecting Penn Station to the New Jersey tunnels run right through the site

How is this possible? With an ingenious decking system of interlocking concrete bridges, moved into place by giant machines.

More on projects, including this one, in the Manhattan West development.