Accident Description

Accident: Loy Lange Box Company Pressure Vessel Explosion

Location: Location: St. Louis , MO

Accident Occurred On: 04/03/2017 | Final Report Released On: 07/29/2022

Accident Type: Community Impact

Investigation Status: The CSB's final report was released at a public meeting on 7.29.2022.

A massive steam explosion caused a steel vessel weighing approximately 2,000 pounds to launch itself into the air. The initial explosion killed one worker and critically injured another. The vessel flew several hundred feet and landed on a nearby company, fatally injuring three members of the public.