“Mr. Johnson saw a way to keep traffic flowing for all but 10 days of the three-year project, helping shave $28 million from its estimated cost. As the new bridge is constructed on temporary piers, cars whiz past it a scant 55 feet upstream on the old bridge. When work on the new bridge is finished, traffic will be briefly rerouted onto it, so the old one can be demolished. In the grand finale this July, the new 15,260-ton steel bridge, pulled by powerful strand jacks, will slide slowly upstream on steel beams lubricated with high-grade silicon grease, before finally coming to rest in the footprint of the original bridge.”

http://online.wsj.com/article/SB10001424127887323611604578398431649165410.html

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