What is the required maximum slope for excavations less than 20' in depth?

The required maximum slope for excavations less than 20 feet in depth is 34 degrees. This standard is part of safety guidelines to prevent collapses and ensure the stability of the excavation site. When the slopes are maintained at this angle, it minimizes the risk of soil failure and protects workers who are in or around the excavation.

Excavations can be dangerous due to the potential for cave-ins, which can occur with improper sloping or shoring techniques. Therefore, adhering to the regulations regarding slope angles is crucial for ensuring worker safety during excavation activities. A maximum slope of 34 degrees strikes a balance between operational efficiency and safety, as steeper slopes may increase the risk of landslides.