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Structurally Sound: It'S A Bird! It'S A Plane! It'S Super Crane!

The first massive section of structural steel for the approach span of the new Tappan Zee Bridge was installed using the "I Lift NY" super crane. Weighing 1,110 tons and measuring 410 feet long, the steel girder assembly is the first of 133 that will gradually form the bridge over the Hudson River. Made up of welded girders that will support the road deck, the assembly was placed near the Rockland County side of the bridge. When complete, the girders for the new bridge would stretch over 30 miles if laid end to end.

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Sathish Kumar
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84 views1 page

Structurally Sound: It'S A Bird! It'S A Plane! It'S Super Crane!

The first massive section of structural steel for the approach span of the new Tappan Zee Bridge was installed using the "I Lift NY" super crane. Weighing 1,110 tons and measuring 410 feet long, the steel girder assembly is the first of 133 that will gradually form the bridge over the Hudson River. Made up of welded girders that will support the road deck, the assembly was placed near the Rockland County side of the bridge. When complete, the girders for the new bridge would stretch over 30 miles if laid end to end.

Uploaded by

Sathish Kumar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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structurally IT’S A BIRD! IT’S A PLANE!

sound IT’S… SUPER CRANE!

Photo credits: New York State Thruway Authority

THE FIRST MASSIVE SECTION OF structural steel for than 100,000 tons of domestically produced steel. High
the approach span of New York’s new Tappan Zee Bridge was Steel Structures, Inc., and Hirschfeld Industries (both AISC/
successfully installed recently using the “I Lift NY” super crane. NSBA Members and AISC Certified fabricators), have joined
Placed near the Rockland County side of the bridge, the to furnish the approach span steel, while Canam-Bridges
1,110-ton, 410-ft-long section—made up of welded girders (an AISC/NSBA Member and AISC Certified fabricator) is
that will support the road deck—will be joined by 133 addi- fabricating the main span steel. If laid end to end, the new
tional girder assemblies in the coming months to gradually bridge’s girders would stretch for over 30 miles. In addition
form the bridge over the Tappan Zee, a natural widening of to supporting the road deck, the assemblies include infra-
the Hudson River a few miles upriver from Metropolis—er, structure to carry communications, electrical power, water
New York City. and compressed air to support bridge operations.
The assembly was prepared at the Port of Coeymans in As more steel continues to connect the concrete piers over
Albany County, where crew members used approximately the coming months, the new crossing’s final form will become
6,600 bolts to connect the individual 12-ft-tall steel girders, increasingly recognizable to all. The super crane, capable of
according to the New York State Thruway Authority. The lifting nearly 2,000 tons, uses a series of anchor lines to pivot in
assembly was then placed on a barge and floated down the place and make adjustments while installing the assemblies.
Hudson River to the project site, a 95-mile journey. Visit newnybridgegallery.com for additional photos and
The Thruway Authority says the bridge will use more videos of the installation.  ■

AUGUST 2015

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