PJM Oversees Restoration of Union Station’s Great Hall Staircase

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CBRE’s Project Management Group (PJM), in partnership with Clune Construction, recently completed the restoration of Union Station’s iconic Great Hall Staircase in Chicago.

After 90 years of foot traffic, the famous Travertine stairs had begun to realize “cupping” and other wear-and-tear. The project not only restored the Chicago Landmark space, but also implemented ADA code compliances to bring it up-to-date.

To match the same look and feel of the staircase, new Travertine blocks were mined from Italy, very close to where the original materials were mined 91 years ago.

Other project highlights included:

  • Cataloging, salvaging and retrofitting the existing bronze hand rails
  • Structural upgrades to the existing steel substructure for another 90 years of preservation
  • Maintaining a safe construction site in a very highly-used area with no incidents in public space.

Because of the Great Hall Staircase’s landmark designation, the original Travertine treads and risers were removed intact and preserved for either museum display or for another decorative staircase project in the future.

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