For anyone in the New York metro area the news about the design of the new $3.1 billion Tappan Zee bridge has been with us for a few months, however a video was just released last week that shows the chosen design in a computer animation that was just posted on Monday.
By 2016 the first span will be completed and all traffic will be diverted to this half of the new bridge allowing for demolition of the old bridge. Once the original bridge is gone construction begins on the second span. All work is expected to be finished by 2018.
The consortium that won the bid possesses a barge with a huge crane mounted on it that I believe is the largest in the world. It was this crane that allowed for enhanced construction speed and lower cost resulting in this group becoming the lowest bidder and winner of the contract.