According to an article from The Chief Engineer, the roof of the Athens Olympic Stadium will become the trademark of the 2004 Olympic Games.

The roof's design of a double bowstring tied arch has a total span of 1,00 feet and a maximum height of 262 feet. The structure is constructed of metal and glass and uses a coating designed to reflect 60 percent of the sun, a feature considered particularly important during the Greek summer. The two arches support the cables that hold the polycarbonate roof panels.

Because the arches were constructed and erected off-site while the existing stadium was refurbished, contractors were faced with the problem of moving and positioning the two roof halves, each weighing 8,500 tons. Enerpac Integrated Solutions Specialist found a solution with long stroke-pulling cylinders powered by PLC-controlled hydraulic pumps.

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