The inflatable roof over the Hubert H. Humphrey Metrodome in Minneapolis, Minnesota was made from ten (10) acres of fabric, weighing approximately 580,000 pounds.  Its dual layer construction consisted of a Teflon-coated fiberglass outer layer and an inner layer of acoustical material.  During winter months, warm air circulated between the layers to help melt snow on the roof.   Continuously monitoring weather, a sophisticated environmental control system managed the temperature and air flow in the roof.  However, on December 10, 2010, a severe winter storm dropped over 17 inches of snow on the Metrodome, causing three roof panels to tear and resulting in a catastrophic collapse of the roof.  

Pinnacle was a first responder after the collapse and emerged as a principal critical services provider during the removal of the collapsed roof and installation of a new roof.  Elements of Pinnacle's Metrodome solutions strategy included:

  • Performing a hazard analysis and resulting plan to mitigate potential safety/ health exposures.
  • Creating a site-specific Health and Safety Plan, including documentation processes.
  • Providing on-site personnel to serve in the critical roles of Site Safety Officer and Assistants.
  • Credentialing and documentation of all on-site responders.
  • Coordinating consultations with emergency management personnel.
  • Conducting daily safety briefings and liaising with Minnesota OSHA.
  • Maintaining records of all on-site contractors and equipment.
  • Providing incident reporting on safety and response activities.
  • Providing continuous plan and scene monitoring with necessary critique, assuring continuous improvement throughout the project.