Type C soil requires that for every 1 foot of depth (V), the trench must be excavated back how many feet (H)?

In the context of trench safety and excavation practices, Type C soil is characterized by its loose and unconsolidated nature, making it less stable than other soil types. It is essential to follow specific excavation guidelines to ensure safety. For Type C soil, for every foot of vertical depth (V) of the trench, the excavation must be extended back 1½ feet horizontally (H) to create a stable slope. This ratio helps prevent cave-ins by allowing the soil to maintain structural integrity.

Understanding this guideline is crucial for construction and excavation professionals, as failure to adhere to proper excavation dimensions can lead to hazardous working conditions. By evaluating the conditions and requirements of Type C soil, workers can better prepare for a safe excavation process.