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PaR - Olmsted Dam Rolling Gantry Crane
Construction of the Oldsted Dam on the Ohio River involved lifting and placing 5,304 capacity crane in the riverbed to form the dam`s foundation. The United States Army Corps of Engineers worked with PAR Systems to design and build the world`s largest rolling gantry crane in order to achieve this task.
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The crane was designed so that the two uppermost beams, known as strand jack beams, could be hydraulically adjusted to adapt to various lifting frame configurations. The concrete shells, while extremely heavy, were also very thin and fragile, so a specialty steel frame was built to handle them with care.