Since 2011, 16 metal and nonmetal miners have died in accidents involving machinery and non-haulage mobile and quarry equipment, and many more have been seriously injured or disabled. Of the 16 persons fatally injured, six were supervisors and three were contractors. Seven miners died when they were struck by the equipment they or a co-worker were operating, four miners drowned when their equipment ran into or overturned into water, and five more died when they were caught in crushers, on drill steel or between reciprocating machinery. The equipment involved represented a wide variety of mining equipment: drills, dozers, excavators, graders, dredges and crushers.
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