1000M, 1000 S. Michigan

scope of work

  • O-Cell Test Performed
  • Deep Foundation for 74 Story High Rise
  • Rock Drilling Over 100' Deep
  • Shafts up to 8' in Diameter
  • Bells over 15' in Diameter


Deep Foundation


February 2020

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Project Summary

Stalwoth Underground was contracted to install caissons that would eventually serve as the deep foundation for a 74 story Hi-Rise. Overall, we took out more rock in the sockets than expected in order to find solid rock. By utilizing our growing knowledge of rock socketed caissons from our IDOT experience this project was completed without any tremmie pour issues or other delays. In fact, the job came in a couple days under schedule, on budget and without major obstructions or delay time.

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