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One World Trade Center
Transcript of One World Trade Center
The symbolic cornerstone of One World Trade Center was laid in a ceremony on July 4, 2004
First work on the foundation started on April 27th, 2006,
On June 14, 2012, President Barack Obama visited the construction site and signed a steel beam.
Obama wrote, "We remember, we rebuild, we come back stronger!"
Officially open in late 2013 or early 2014
Planning and development:
Lower Manhattan Development Corporation organized
Criticism at the limited number of floors in an early plan.
Only 82 floors would have been habitable
Concrete base was added in April 2005.
Changed the official title of the building from "Freedom Tower" to "One World Trade Center,"
Since November 12, 2013 the tallest building in the United States.
72 Vesey Street, New York City, New York
April 27, 2006
David Childs and Daniel Libeskind
1,776 ft (541.3 m)
or: Freedom Tower
1,368 ft (417.0 m)
Aluminium and glass
Estimated cost and funding:
Tower's total cost $3.9 billion
Most expensive single building in the world.
1 WTC should $1 billion cost.
Owners and tenants
One World Trade Center is owned by the Port Authority of New York and New Jersey.
By September 2012, around 55 percent of the building's floor space had been leased
Architecture and design:
Estimated cost and funding
Safety and security
One World Trade Center´s final design consisted of simple symmetries and a traditional profile.
The building´s footprint is nearly identical of the original Twin Towers.
The tower rises from a 185 foot (56m) windowless concrete base, designed to protect it against bombs and other ground level terror threats.
One World Trade Center's top floor will be designated as 104.
There will be a sky lobby on floor 64, and then office floors will resume between floors 65- 90.
Meanwhile, floors 91-99 and 103-104 will be designated as mechanical space.
The tower will also make use of off-site hydroelectric and wind power
The windows are made of an ultra-clear glass which allows maximum daylight to pass through.
While interior lighting is equipped with dimmers that automatically lower the lights on sunny days, thereby reducing energy costs.
Safety and security
Other safety features were included in the building’s design
3 foot (91cm) thick reinforced concrete walls for all stairwells
extra wide, pressurized stairwells
a dedicated set of stairwells exclusively for the use of fire fighters.
and sprinkler systems
All vehicles will be screened before they entered the site via the underground roadway, including for radioactive materials.
The roof of the top floor of One World Trade Center is 1,368 feet (417m) tall.
The building´s antenna brings One World Trade Center to a height of 1,776 feet (541m), a figure symbolic of the 1776 United states Declaration of Independence.