Each year, more than 40 construction workers are killed in trenches. The Hazards A trench is a confined space with many special problems. Most deaths in trenches are from cave- ins . Other risks are falls, electrocution, being struck by falling objects, and bad air. Bad air can hurt your breathing, help cause a fire, or poisonyou.
Many workers die trying to rescue other workers.
Protect Yourself OSHA says your contractor must train you about the hazards and how to protect yourself. If a trench will be dug, the contractor must name a competent person. OSHA has special rules to protect workers in trenches. Make sure all equipment is in good condition. This includes water pumps and ventilators.