Indiana State Fair | Temporary Canopy Structure Collapse

Indianapolis, Indiana

Investigation into the cause of the temporary canopy structure collapse by a sudden wind gust due to the onset of a severe thunderstorm. Examination of the wreckage, review of weather data, structural analysis of the stage canopy structure, testing of tie-back components, and review of documents defining policies, authority, procedures, and protocols that were to have been used if evacuation was required were studied to determine what can be learned from the events on that day leading up to the collapse.