What factor could limit the depth of a trench used for cable installation?

The presence of existing utilities is a crucial factor that can limit the depth of a trench used for cable installation. When there are already installed utilities such as water, gas, electrical, or telecommunications lines in the vicinity, there is a risk of damaging these utilities during excavation. Therefore, safety protocols and regulations often dictate maintaining a certain distance from existing utility lines to prevent accidents and ensure safe installation practices.

Digging too deep in areas where utilities already exist can lead to serious consequences, including service disruptions, hazardous leaks, and increased liability for damages. Consequently, contractors must conduct proper surveys and use utility location services to avoid these pitfalls, which ultimately dictates the allowed trench depth.