Trump Tower rises on 230 caissons – both rock bearing and hardpan – installed on a narrow footprint along the Chicago River.
State-of-the-art caissons provide support for a 92 story highrise tower. The 57 core caissons utilized a record breaking 500 ksf bearing capacity and relied on innovative techniques to drill rock sockets up to 10’ diameter. At many locations, concrete-filled bells of old hand-dug caissons were removed by coring to allow construction of the new shafts. Over 16,000 cy of concrete and 2,360 tons of steel reinforcement and casing was put in place in only 6 months.
Owner/Developer: Trump Organization
Construction Manager: Bovis Lend Lease
Architect/Engineer: Skidmore, Owings & Merrill
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Case Foundation Company
1325 West Lake Street
Roselle, Illinois 60172