Excavation And Trenching:
Almost every month somewhere in the news you can read about a worker being injured or killed when a trench they were working in collapses. These injuries and fatalities and are preventable with planning and proper execution of safety precautions.
Trench collapses can occur without warning, regardless of the depth. The vast majority of trenching fatalities occurs in trenches 5- to 15-feet deep. These depths invite taking chances, and often times it is the good, safe-looking material that turns out to be the unsuspecting killer. But trench cave-ins don't have to happen.