Structure in General
- Chicago Spire would have been the tallest building in the United States and the Western Hemisphere.
- According to the architect, the tower's shape was derived by imagining the plume of smoke from a campfire lit centuries ago by Native Americans at the mouth of the Chicago River.
- Each floor is rotated about two degrees from the one below, forming a tapered tower which twists 270° from the base to the roof.
- Chicago Spire's lot is situated by the mouth of the Chicago River, and also guards the entrance to Ogden Slip, a short branch of the river to the north.
- This is the third serious proposal in Chicago for an extremely narrow tapering skyscraper passing Sears Tower in height; the earlier proposals were the Miglin-Beitler Skyneedle and 7 South Dearborn.
- This building would have had the longest elevator run in the world.
- The slender twisting structure resembles a narwhal's horn.
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Also recorded for this building:
wind surveyor, elevator consultant, structural engineering, concrete supplier, developer, rebar supplier, geotechnical engineering, real estate agent, foundation company, facade consultant, MEP engineering, excavation company