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Steel Work Complete at 1 and 4 World Trade Center
Posted by Tasha Weiss on September 11, 2012 at 4:12 PM.

As the nation observes the 11th anniversary of 9/11 today, signs of recovery are shown in the progress of rebuilding the World Trade Center, which reached two major milestones this summer. Steel has topped out at the 1 World Trade Center and 4 World Trade Center towers.


img_0004.JPGOne World Trade Center, formerly known as the Freedom Tower, without the spire has reached its full height of 1,368 ft (the spire atop the 104-story building will reach the symbolic height of 1,776 ft when installed). The building topped out on August 30 when the last of the spandrel beams were installed between the parapet columns. A special steel beam, signed by the President Obama, local officials and the construction workers, was raised to the top of the building a few weeks prior. The building will open in 2014 on the northwest corner of the trade center site, with 3 million sq. ft of office space. (Photo: Jacinda Collins, AISC)


The final steel beam was lifted atop 4 World Trade Center in June, ceremonially signifying the completion of its structural steel framework. During the topping out ceremony, ironworkers and public officials signed the beam before it was lifted 977 ft by a crane and installed on top of the building. The 72-story tower is scheduled to open late next year and is expected to be the first tower completed on the 16-acre site since the 9/11 attacks.


For more information on the World Trade Center’s construction progress, including live camera images, visit

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