What is the required spacing for ladders at excavation sites deeper than 4 feet?

The correct spacing for ladders at excavation sites deeper than 4 feet is every 25 feet. This requirement is established by OSHA standards to ensure the safety of workers who may need to access or exit excavations. By maintaining this spacing, workers have consistent access to safe egress points, minimizing the risk of falls or other accidents that could occur if they are forced to travel longer distances without a ladder.

The choice of 25 feet provides a balance between accessibility and the practical concerns of ladder placement within excavation sites, thereby enhancing overall worker safety. This spacing is crucial in maintaining safe working conditions at such depths, where the hazards can be greater due to the risk of cave-ins or other related dangers.