Yes, but that bedrock is way down there. From [0] : “Construction of the John Hancock Center began in 1965; however, was stopped in 1967 because the building k

Yes, but that bedrock is way down there. From [0] : “Construction of the John Hancock Center began in 1965; however, was stopped in 1967 because the building kept sinking. Because of the John Hancock Center's lakeside location, 57 concrete caissons had to be sunk into 10 ft wide holes drilled 197-feet below grade into bedrock, resulting in the John Hancock Center having the deepest foundation of any building at the time.” [0] - https://www.beck-technology.com/blog/how-did-they-build-that-john-hancock-center-chicago?hs_amp=true https://www.beck-technology.com/blog/how-did-they-build-that...