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Cook County Administration Building

Identification

Cook County Administration Building
Brunswick Building
116843

Map

Structure in General

skyscraper
existing [completed]
tube-in-tube
concrete
caisson foundation
concrete
exposed structure
light yellow
modernism

Usages

commercial office

Facts

  • The small plaza to the west has an untitled sculpture by Joan Miró, usually likened to a woman with a fork in her head.
  • Originally corporate offices, the Brunswick Building was taken over by Cook County for government offices and courtrooms.
  • The Loop Pedway System makes makes a wide detour as it passes under the building, making room for several retail establishments.
  • The façade above the base sweeps back slightly in a curve similar to that of the Monadnock Building, another landmark of engineering on Dearborn Street.
  • Uses a tube-within-a-tube structural system: both the core and perimeter are hollow, rigid tubes which brace the building and allow column-free interiors. This design is an advance from the single tube used in The Plaza on Dewitt; further variations by the same engineer (Fazlur Khan of S.O.M.) gave rise to the John Hancock Center and Sears Tower.
  • The gravitational force of the outer tube structure is transfered at the base to a set of massive perimeter columns.
  • This office tower is located directly opposite the Richard J. Daley Center and is connected underground by pedway.
  • This was the tallest concrete office building in Chicago when it was completed.
  • Der Büroturm liegt direkt gegenüber dem Richard J. Daley Center.

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More Information

Location

69 West Washington Street
60602
Loop
Downtown
Chicago
Illinois
U.S.A.

Technical Data

475.01 ft
475.01 ft
475.01 ft
35
1962
1964

Involved Companies


Skidmore, Owings & Merrill LLP
client, developer, general contractor, mechanical systems installation, roofing supplier

Features & Amenities

  • Pedway access is available
  • Plaza is available to the public