ONE WORLD TRADE CENTER SPIRE

One World Trade Center, also known as the Freedom Tower is the primary building of the new World Trade Center complex in New York City's Lower Manhattan and is the tallest building in the United States and Western Hemisphere. The 104-story super tall skyscraper stands on the northwest corner of the16-acre (6.5 ha) World Trade Center site, on the site of the original 6 World Trade Center.

At 1,776 feet, One World Trade Center is among the tallest buildings in the world.  1,776 feet straight up is also a less than ideal location for corrosion maintenance!  Therefore, low cost, long-life hot-dip galvanizing was specified for the spire of One World Trade Center.

The tower's steel structure topped out on August 30, 2012. On May 10, 2013, the final component of the skyscraper's spire was installed, making One World Trade Center the tallest building in the Western Hemisphere and the fourth-tallest skyscraper inthe world by pinnacle height. Its spire reaches a symbolic height of 1,776 feet (541 m) in reference to the year of the United States Declaration of Independence. The tower’s 133-meter (440 foot) tall spire (formely known as the antenna), which include both its base and mast. The bottom section of the spire has an 18-meter or 5.5-foot diameter,its heaviest section weights over 54 tons and the top of the spire is in stainless steel.

Because of its size and dimension, the spire in 18 sections and travelled by barge from Montreal to New York passing through the St.Lawrence Seaway. Topping the OneWorld Trade Center tower, the spire brought the height of the tower to a symbolic 1 776 feet high (541 meters) as it marks the year America signed its declaration of independence.

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