2012 Top 10 Bridges: No. 7

Feb. 21, 2013
PROJECT: CLEVELAND’S I-90 INNERBELT BRIDGE
LOCATION: Cleveland
COST: $290 million
LENGTH: 5,000 ft
DESIGNERS: HNTB Corp.
CONTRACTOR: Walsh Construction Co.
OWNER: Ohio DOT

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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