Trenching Trenching operations expose workers to cave-ins, falling materials, hazardous atmospheres, underground utilities, water accumulation, and mobile equipment. Because trenches have restricted working space and limited means of escape, hazards must...

Trenches Trenches can expose workers to cave-ins, hazardous atmospheres, falling materials, water accumulation, mobile equipment, and other serious hazards. A trench can collapse suddenly and without warning, so workers must never...

Trenching and Shoring Trenching and shoring operations are common when installing buried utilities, pipelines, drainage systems, and other underground infrastructure. These operations can expose workers to cave-ins, falling materials, hazardous atmospheres,...