What is the procedure for entering an excavation deeper than 4 feet?

Using a ladder or stairway for access is crucial when entering an excavation deeper than 4 feet due to safety regulations and best practices. This depth is significant enough that the risk of cave-ins increases, and it becomes essential to have reliable means of access and egress to avoid accidents. A ladder or stairway provides a stable and secure way to enter and exit the excavation, allowing workers to avoid slipping or falling, which could lead to serious injuries.

Furthermore, when working in excavations, it's critical to follow Occupational Safety and Health Administration (OSHA) guidelines and industry standards, which mandate the use of appropriate structures for safe access in excavations over this depth. These structures help ensure that all personnel can navigate entering and exiting the site safely, thus minimizing the risk of falls and improving overall site safety for those working in and around the excavation.