Trenching involves digging long, narrow excavations of soil for a variety of purposes. These can range from removing old utility lines to installing new ones. Because trenching often takes place in confined spaces, workers must follow a number of safety precautions. These include preparing a confined space entry permit and providing adequate protective systems such as trench boxes or shields. Safety Despite the best plans and precautions, accidents can still happen when digging. This is why it’s important that safety measures are constantly implemented and re-examined. For example, before beginning excavation , a worker should contact a utility locating service to identify any underground lines that may be encountered during the project. This will prevent the accidental destruction of gas, water, or electrical lines, which can cause injury and even death. A competent person should also inspect the trenches before work begins and as conditions change throughout the day. The inspec...
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