Frontera Materials Inc operator

An over the road truck driver was crushed while trying to unload gravel. Driver was parked in a jackknife position while trying to unload some of the gravel in EE's bed. While attempting to dump, EE's lift cylinder snapped and the trucks trailer fell on top of the driver's side killing the driver. 911 was called immediately and MSHA was called after.

Miner left haul truck running without setting the parking brake and/or chocking the wheels. The haul truck rolled forward and pinned the miner between the haul truck and miner's personal vehicle. Miner did not survive miner's injury.