Its first resident was Ray Heckla, the original building engineer, responsible for the residential floors from 44 to 92. The Skidmore, Owings & Merrill building stands 343.5 meters to the roof and is an additional 114 meters to the top of the tall antenna. The one hundred story tall John Hancock Center, is recognized as an icon to local Chicago and skyscraper enthusiasts worldwide. Once the tallest building in the world outside of New York when it was completed in 1970, the John Hancock Center stands along with the Willis (Sears. Text description provided by the architects. The owner went bankrupt, which resulted in John Hancock taking over the project, which retained the original design, architect, engineer and main contractor. ![]() This forced the owner to stop development until the engineering problem could be resolved, and resulted in a credit crunch. ![]() The engineers were getting the same soil settlements after the first 20 stories had been built as they expected for the entire 99 stories. Construction of the tower was interrupted in 1967 due to a flaw that was discovered in an innovative engineering method used to pour concrete in stages. Financed by the John Hancock Mutual Life Insurance Company, the building was originally conceived to be the world's second tallest building.
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