A hole punched into a 4-in.-dia gas pipeline during fiber-optic line laying is blamed for an explosion that killed a 34-year-old fire captain and injured nine other people, including four firefighters, in downtown Sun Prairie, Wis., on July 10. The injured were treated at nearby hospitals and have since been released.
Investigators Eye Fiber Optic Work in Deadly Wisconsin Explosion
July 18, 2018
Jeff Yoders – Engineering News-Record
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