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311 South Wacker

Identification

311 South Wacker
117191

Map

Structure in General

skyscraper
existing [completed]
concrete
caisson foundation
granite
light pink
postmodernism
irregular roof

Usages

commercial office
shop(s) restaurant mercantile

Facts

  • World's tallest reinforced concrete building when completed; surpassed two years later by Central Plaza in Hong Kong.
  • The front lobby is a large two-level winter garden with glazed palm trees and an 86-foot high glass roof.
  • Raymond Kaskey's bronze sculpture "Gem of the Lakes" looks over the winter garden from the Wacker entrance. It depicts a large Neptunian figure drying himself over a seashell fountain.
  • The lower level of the winter garden was designed to connect via underground passageway to Union Station.
  • 311 South Wacker Drive is the tallest building in the world known only by its street address.
  • Two towers similar to this one were planned for the lots on either side. Both sites are reserved for future development, and the northwest plot is a temporary park.
  • The canopy over the sidewalk in front of the winter garden was added to the building in 2002.
  • The building's top is a large cylinder surrounded by four smaller cylinders. One prototype design included four spires around the circumference.
  • The lantern at the top changes colors for various holidays and special events.
  • The five cylinders on top are lit at night by 1,852 fluorescent tubes, creating a light bright enough to compete with the full moon.

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More Information

Location

311 South Wacker Drive
312 South Franklin Street, 300 West Van Buren Street, 301 West Jackson Boulevard
311 South Wacker
60606
Loop
Downtown
Chicago
Illinois
U.S.A.

Certificates

Certified as LEED – Silver (2015)

Technical Data

961.01 ft
961.01 ft
952.84 ft
882.01 ft
842.51 ft
12.50 ft
65
3
1988
1990
35
4

Involved Companies


Kohn Pedersen Fox Associates
HKS, Inc.

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Features & Amenities

  • Doorman is available
  • Fountain is present in building
  • Ornamental illumination is installed
  • Skylobby is present
  • Wintergarden is present
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