What defines Type C soil according to OSHA?

Type C soil, as defined by OSHA, is any soil that does not meet the criteria for Type A or Type B soils. This category includes a wide variety of soil types that are generally recognized as the least stable among the classifications. Type C soils can include loose, granular soils such as sand and gravel, as well as soil that can be affected adversely by water or other environmental conditions. Due to the lack of cohesive properties and overall stability, Type C soils require specific precautions and procedures during excavation to ensure safety. Understanding that Type C is a classification for soil that poses higher risks is critical for workers to implement the proper safety measures when working in such conditions.