One World Trade Center

Status: under construction Construction Dates   Began 2006   Will finish 2013 Floor Count 105 Basement Floors 4 Floor Area 241,548 m²

Building Uses  - office  - communication  - mechanical  - observation  - restaurant  - retail  - station Structural Types  - highrise  - pole Architectural Style  - modern  - structural expressionism Materials  - glass  - steel  - concrete, reinforced

	Heights		Value		Source / Comments
	Spire		541.3 m		Skidmore, Owings & Merrill
			A spire with an embedded antenna will rise to 1,776 feet.
	Roof		417.0 m		New York Times
			Glass Parapet (Same height as WTC One roof height)
	Main roof		406.9 m		Skidmore, Owings & Merrill
			Height to the bottom of the parapet
	Top floor		400.5 m		Skidmore, Owings & Merrill Stacking Plan
			Height to surface of top floor plate
	Base width		61.0 m		Skidmore, Owings & Merrill
			Width of the glass clad concrete base
	Base length		61.0 m		Skidmore, Owings & Merrill
			Length of the glass clad concrete base
	Base height		56.9 m		Skidmore, Owings & Merrill
			Height of the glass clad concrete base

Description • Companies: - Architect(s): David Childs; Skidmore, Owings & Merrill - Developer: Port Authority of New York & New Jersey - Owner: Port Authority of New York & New Jersey - Construction Manager: Tishman Construction Corporation - Structural Engineer: Cantor Seinuk Group ___________________________________________________________ Facts & Description: • Part of the New World Trade Center, which is expected to be completed in 2012 - 2013. Link to Project Diagram: http://skyscraperpage.com/diagrams/?buildingID=7788,7801,7802,7803,7804,7422&orderby=buildingIDorder • The building will be the tallest in New York City and the country upon completion, and one of the tallest in world. • The building has been renamed by the Port Authority (owner) in spring 2009 from Freedom Tower to One World Trade Center • This is the buildings second official design. The first, designed by David Childs in collaboration with Daniel Libeskind, was disregarded due to concerns raised by the New York Police department that the building would be vulnerable to a car bomb blast. • The building now officialy 105 Floors tall, instead of 82. The base will occupy floors 1 - 19, Floors 20 - 63 will be offices, floor 64 will be a skylobby, floors 65 - 88 will also be offices. Floors 89 - 99 will be Mechanical floors, floors 100 - 102 will be used for Observation and other public uses. Floors 103 - 105 will then be more Mechanical Floors. • The new design attempts to address the NYPD's concerns with its 186.5-foot-high reinforced concrete blast resistant base, which will contain the Freedom Tower's 80-foot tall lobby and three of its mechanical floors. • The base of the tower, which was originally to be clad in polished steel and titanium like 7 WTC, will now be covered in vertical bands of glass prisms. The base will have no windows except for several tall narrow ones which will be placed a minimum of 25 feet above the ground. • The cornerstone of One WTC was laid in July 2004, before the redesign was deemed necessary. The stone was then removed in mid 2006 as foundation work for the tower began. • After lengthy and combative negotiations that resulted in a reconfigured lease agreement between the Port Authority of New York and New Jersey (the owner of the World Trade Center) and Larry Silverstein (the leaseholder of the complex), construction of the Freedom Tower began on April 27, 2006. Not long after the start of construction, a new battle with the insurers of the World Trade Center resulted from the reconfiguration of the lease. The court battle now threatens to delay or end construction. ____________________________________________