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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 14483952 - One Killed, One Injured When Buried In Stone Bin

Accident: 14483952 -- Report ID: 0213100 -- Event Date: 02/12/1985
InspectionOpen DateSICEstablishment Name
102448802/12/19853273Bonded Concrete Inc

A supervisor at a concrete ready-mix plant assigned Employees #1 and #2 to determine why stone was not running from the holding bin. Upon examination they found that the bin contained approximately 75 tons of #4 ASTM stone and decided that it was probably frozen. The two employees entered a tunnel below the bins that contained the hoppers and conveyor. They tried unsuccessfully to loosen the stone by banging on the side of the hopper with a sledgehammer. They then went to the front of the bin, Employee #1 with the sledgehammer and Employee #2 with a 4 in. by 4 in. by 3/8 in. angle iron and a 10 ft long pry bar. They entered the bin and climbed on top of the stone, directly over the grate-covered hopper. The hopper gates were open and the conveyor belt was running (350 fpm). When Employees #1 and #2 succeeded in loosening the stone, it gave way beneath them. They were quickly drawn down into the flowing material. Employee #1 was buried entirely and Employee #2 was buried up to his chin. It took about 1 1/2 hours of digging with hand shovels to free both employees. Employee #1 died of asphyxia. Employee #2 was hospitalized for multiple bruises, contusions, and lacerations.

Keywords: asphyxiated, lifeline, work rules, flowing material, laceration, unstable surface, bridged material, buried, contusion

Employee Details
Employee # Inspection Age Sex Degree Nature Occupation
1 1024488 Fatality Asphyxia Occupation not reported
2 1024488 Hospitalized injury Bruise/Contus/Abras Occupation not reported

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