An excavation over how many feet deep must have a ladder for access?

Excavations that are 4 feet deep or more require a ladder, according to safety regulations and guidelines set by agencies like OSHA. The requirement for a ladder at this depth is primarily to ensure the safety of workers who may need to enter or exit the excavation site. Ladders provide a means for safe access and egress, helping to prevent falls and potential injuries when personnel are working at significant depths.

While shallower excavations may not necessitate a ladder, going down to 4 feet increases the risks associated with potential cave-ins and the difficulty of emergency evacuations. Therefore, implementing a ladder for any excavation of this depth is a crucial safety measure in construction and excavation operations, reinforcing the importance of following established safety protocols in the workplace.