Allentown Arena Starts To Get Its Roof Overhead

English: City of Allentown from east side

English: City of Allentown from east side (Photo credit: Wikipedia)

A milestone of sorts for Allentown’s new arena has begun.

Three massive cranes this morning began lifting the seven 236-foot-long roof supports, called trusses, into place above the 8,500-seat PPL Center. Workers hoisted 85 feet in the air in high-reach cherry-pickers will use pneumatic wrenches to fasten the trusses into place with massive bolts.

Each truss, a curved structural support laced with a series of steel triangles, weighs between 125,000 and 212,000 pounds.

The first truss is expected to take 14 to 16 hours to install. The trusses were constructed on the arena floor last week.

Read more: http://www.mcall.com/news/breaking/mc-arena-truss-installation-20131003,0,5253395.story#ixzz2glgUA0Eu
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