Cook_County_Administration_Building_fire
Cook County Administration Building
Skyscraper in Chicago, Illinois
The Cook County Administration Building (formerly known as the Brunswick Building) is a skyscraper located at 69 West Washington Street in Chicago, Illinois.[1][2] The building, constructed between the years 1962 and 1964, is 475 ft (144.8 m) tall, and contains 35 floors.[1] It has a concrete structure.[1] The building, engineered by Fazlur Khan of the firm Skidmore, Owings & Merrill, is notable for innovating the tube-within-a-tube structural system.[2]
Originally a corporate office building, the tower was later acquired by the Cook County government and now holds government offices and courtrooms.[2]