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Lower Manhattan : 1 World Trade Center

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Steel reached the 50th story in December 2010 The Port Authority is making progress on the $3.1 billion 1 World Trade (formerly called the "Freedom Tower"). Located at the northwest corner of the WTC site, installation of steel columns and core concrete continues.

The skyscraper is being built according to a revised design released in June 2005. The new design retains essential elements of the original plan-- soaring 1,776 feet into the sky, its illuminated mast evoking the Statue of Liberty's torch -- but features a smaller, cubic base set back further from West Street to protect the building against future attacks.

Rising from its square base -- which will be constructed of impermeable concrete and steel -- the redesigned 1 WTC will taper into eight tall isosceles triangles, forming a perfect octagon at its center. An observation deck will be located 1,362 feet above ground (105 stories) and there will be a square glass parapet at 1,368 feet, the heights of the original Twin Towers. From these, an illuminated spire containing a television antenna will rise to a final height of 1,776 feet.

Other key elements include; 2.6 million square feet of office space, tenant amenity spaces, world-class restaurants, below-grade retail, and access to the PATH, subway, and World Financial Center. According to the Port Authority schedule, the tower is expected to open in late 2013, with some interior fit out continuing into 2014.

To learn more about this project, please click here.

To view a slide show of the latest 1 WTC renderings, click here.

View animations of the Revised Freedom Tower:

For details about the earlier stages of this project, click here.

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Summary

View the latest 1 WTC slide show from June 2010 here

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Daily Activities

*The following information was last updated on December 9, 2011

  • Facade installation is now above floor 67
  • Tower steel is now above floor 91. It is expected to top out in the first quarter of 2012.
  • Concrete is now being installed above floor 84
  • Spray-on fireproofing underway
  • Elevator shaft fit-out
  • Multiple cranes on site for steel and concrete installation
  • Both the south and north cores are now being erected as the structure rises
  • "Cocoon" safety system now in place around upper perimeter, to rise with structure
  • Utility installation and tie-ins
  • Crews are coordinating substructure construction while maintaining PATH service
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Contact Info

For more information about 1 WTC, contact Thomas Maher at the Port Authority at 212-435-6531 or [email protected].

More information about the building and entire World Trade Center site can be found at www.wtcprogress.com and www.wtc.com.

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Frequently Asked Questions

Q: A: One World Trade Center is currently scheduled to open in late 2013. The finished structure will include 2.6 million square feet of office space, an observation deck, restaurants, and broadcast and antennae facilities. Underground, there will be retail shops and access to the PATH rapid-transit system, as well as a passageway to the World Financial Center. Q: A: One significant delay was the redesign of the tower in the spring 2005, to better accommodate security measures at street level. However, preliminary construction on the then-called "Freedom Tower" started on July 4, 2004, and crews have worked steadily since then.

Since fall 2008, tower construction is underway. Q: A: To address security concerns, the redesigned building's setback distance from West Street has been increased from 25 feet to an average of 90 feet, and its cubic base will be constructed of impermeable concrete and steel. Additionally, the building will feature advanced life safety systems that exceed the city building code, structural redundancy, extra-strong fireproofing, and biological and chemical filters in the air supply system. There will also be extra-wide pressurized staircases, low-level emergency lighting, and interconnected redundant exits. Finally, emergency communication cables will facilitate enhanced emergency response, and there will be a dedicated staircase for use by firefighters and "areas of refuge" on every floor. Q: A: Tower 1 will use the latest technologies to maximize efficiency and minimize waste and pollution in both its construction and eventual operation. It is being built according to World Trade Center Sustainable Design Guidelines and will, at a minimum, conform to the U.S. Green Building Council’s Leadership in Energy and Environmental Design (LEED) standard. According to architectural firm Skidmore, Owings and Merrill, “Specific achievements of 1 WTC will include use of renewable energy for at least 20 percent of the building’s energy needs; state-of-the-art energy conservation technology to reduce energy demand; better interior “daylighting” and views of the outside for occupants due to ultra-clear glass technology; improved indoor air quality due to outside-air ventilation and use of building materials without toxic materials such as volatile organic compounds (VOCs); water conservation due to reuse of rainwater for building cooling and irrigation; reduction of vehicular traffic via proximity to public transportation and provision of facilities for bicycle commuters; waste reduction through recycling of construction debris and use of recycled-content building materials; natural resource protection via use of sustainably harvested wood; and cleaner air in the community due to use of ultra-low-sulfur diesel fuels and particulate filters on construction vehicles, for which the EPA has already given Silverstein Properties (the tower’s developer) a 2004 Environmental Quality Award.” Click here for answers to commonly asked construction questions. < Back to Top >

Related Links

Facade Starts to Wrap 1 WTC Renewed Collaboration Makes WTC Progress Clear 1 WTC June 2010 photo slide show Live webcam of 1 WTC construction "Revised Freedom Tower Reflects Twin Towers' Form," LowerManhattan.info, June 29, 2005 Looking Ahead: Freedom Tower View a slide show of 1 WTC renderings < Back to Top > > Construction Lingo > Construction Questions Answered > Support the Memorial > Envisioning the Future - Pier 42 Joins East River Waterfront Improvements - Governors Island Park Construction Starts in 2012 - BPC Murray Street Triangle Traffic Reduction - Capitalism Realized at Museum of American Finance - John Street Weekend Closure for Utility Work - North FDR Drive-to-Brooklyn Bridge Ramp C Closures You must have Flash player 7 to view this content. Download flash now.

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