One thing was clear, crews needed to build support for this bridge, which required deep foundations—more than 160 ft deep in most locations. The ?nal design used the largest pile in the U.S. to date. Drilled shafts were required for the piers on the relatively soft slope of the western bluff. The contractor removed more than 300,000 cu yd of soil to prevent the slope failures that had contributed to previous structural damage on the existing bridge.
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