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Chicago Spire

446 East North Water Street
Chicago IL United States

Construction Dates
Floor Count150
Floor Area81,470 m²
Units / Rooms1,300
Building Uses
 - residential
Structural Types
 - highrise
 - twist-scraper
Architectural Style
 - structural expressionism
 - futurism
 - glass
 - steel
 - aluminium
 - concrete, reinforced

 Heights ValueSource / Comments 
Roof2001 ftCTBUH
Top floor1865 ftCTBUH

• Architect: Santiago Calatrava SA.

• Constructors: Shelbourne Development Ltd., Santiago Calatrava S.A., Buro Happold Consulting Engineers, P.C., Thornton Tomasetti, Inc., Cosentini Associates, STS, Budron Excavating Company, Inc., Case Foundation Company, Barker Mohandas, LLC, Van Deusen & Associates, The Prairie Group, Gerdau, FPD Savills.

• Would have been the tallest building in the United States as and the Western Hemisphere if built. It would have had the highest elevator run in the world.

• Ground was broken in July 2007 with the installation of 32 reinforced concrete caissons. were it completed, the Chicago Spire would have surpassed the Sears Tower as the tallest building in Chicago.

• Inspired by natural forms, each floor of the tower projects seven arms from the central vertical axis - each having a concave edge. As the tower rises, each floor rotates approximately 2 degrees in plan while the length of the radial arms also diminish, forming a tapered tower which twists 270° from the base to the roof. The result is a graceful spiral not unlike shells of the natural world. In addition, the character of the building's spiral shape allows for better disbursement of applied wind forces which is an obvious advantage for any tall structure.

• Located at the edge of Lake Michigan, residents and guests of the five-star hotel would have had incomparable views of the city and the lake front.

• During the financial crises in North-America in 2008, the construction decreased substantially, culminating on-hold situation for some time, leaving only a round hole basement on floor site.

• In October 2010 Shelbourne Development Ltd. was sued by Anglo Irish Bank Corp which gave Shelbourne the money to develop the project. As a result the project has gone into foreclosure effectively cancelling the project.

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