Working in an unprotected trench is dangerous. The walls can collapse suddenly and without warning. When this happens, workers do not have time to move out of the way.
While a small amount of dirt may not seem dangerous, one square yard of dirt can weigh more than 3,000 pounds. This weighs the same as a compact car. This small amount of dirt is enough to fatally crush and suffocate workers.
Injuries and deaths related to trench collapses continue to happen. From the years 2003 to 2017, there were a total of 373 trenching deaths. More than 80% of those deaths happened in the construction industry. Workers do not often survive trench collapses, but we can prevent them.
To prevent trench collapses, employers must plan before the job begins. Employers should:
The OSHA standard for excavations, including trenches, is 29 CFR* 1926 Subpart P. This standard describes the precautions needed for safe excavation work. OSHA requires that all excavations 5 feet deep or greater make use of one of the following protective system options:
Workers can take training to increase their knowledge, become a competent person or be trained in trench rescue. Some of the training available from UT Center for Industrial Services includes:
We can offer these trainings on-site at your location, or you can register for a scheduled event listed on the UT CIS training calendar. Contact Dustin Housewright at dustin.housewright@tennessee.edu for more information.