Montana State Capitol

Helena, MT

Vertical Access LLC was retained by Comma-Q Architecture, Inc. to perform an intensive survey and evaluation of designated areas of the Montana State Capitol. 

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Building description

Charles Bell and John Kent designed the central portion of Montana State Capitol that was completed in 1902. The East and west wings were finished in 1912 based on Frank Andrews design with assistance from the Montana firm Link & Haire. The dome is topped with Edward Van Landeghem’s copper “Montana” sculpture.

Scope of work

  • Completed a hands-on condition survey of the exterior of the sheet metal dome and masonry drum.
  • Enabled a full characterization of a single truss of which the dome is comprised.
  • Conducted targeted exploration of key transitions that make up the interior of the drum.
  • Provided live feed video to the project team to enable a close-up view and real-time discussion of typical and notable conditions and dimensions.
  • Used a borescope for subsurface documentation of the sculpture “Montana” and targeted points in the façade.
  • Preformed drone flights around the sculpture “Montana” and at the interior of the rotunda.
  • Documented exterior skylight conditions while completing a close inspection. 

Building owner

Montana General Services

In collaboration with

  • Comma-Q Architecture, Inc.
  • Hennebery Eddy Architects
  • DCI Engineers
  • Renaissance Roofing, Inc.