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        1. Derrick Crane Barge Grillage

          Tappan Zee Constructors (TZC) contracted with County Fabricators on another temporary works project for the New NY Bridge. The derrick tower barge grillage system consisted of fabricating structural steel spanning 2 – 120’ x 52’ barges with 3 pairs of W36x302 beams welded together to create the 120’ long structural supports. The cross-beam supports were fabricated by welding 6 – W36x302 beams in place. All beam assemblies were fabricated with 1” thick top and bottom cover plates. TZC supplied barges to County Fabricators’ bulkhead with Hudson River access to better accommodate both the build and the delivery of this massive system.

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