Which type of excavation requires a means of egress due to depth considerations?

Excavations that are 4 feet deep or deeper require a means of egress due to safety considerations related to the potential for cave-ins. OSHA regulations specify that when excavations reach a depth of 5 feet or more, specific safety measures must be implemented to prevent accidents, including providing a safe way for workers to enter and exit the excavation site. While excavations at various depths can have their own hazards, the 4-foot threshold is particularly significant as it marks the point where additional safety measures become critical to protect workers from the risks associated with deeper excavations. Ensuring that workers have a proper means of egress helps to facilitate a quick escape in case of an emergency, enhancing overall site safety.