Completed in 1903, the Colorado State Capitol is the defining structure of downtown Denver’s Civic Center Historic District, with a majestic dome that rises 172 feet above the main roof of the building.

After more than a century of water infiltration, the cast iron tower and dome were deteriorating and in need of comprehensive repair and restoration. The project represented a unique opportunity to combine traditional construction techniques to preserve and restore the original structure while introducing contemporary building technologies to protect the dome for decades to come.


  • Restored momentous dome atop Colorado state capitol
  • Repaired, refinished, and restored decorative finishes
  • Ensured a waterproof envelope using new technologies
  • Four-year, multi-phased restoration
  • Originally built from 1886 to 1903 and listed on the National Register of Historic Places