How far from the edge of a hole must you place the spoil from an excavation?

• A. 1 foot
• B. 2 feet
• C. 3 feet
• D. 4 feet

Answer: (B)

The main idea is to keep spoil material away from the edge of an excavation to protect the trench from being undermined and to keep the edge safe for workers and equipment. Placing spoil at least two feet from the edge reduces the chance that the pile will slide or fall back into the trench, which could trap or injure someone and compromise the trench stability. It also provides space for ladders, escape routes, and safe operation of machinery without the spoil obstructing the edge or contributing to a collapse. One foot is too close and could allow spoil to fall into the trench; three or four feet are more than the minimum typically required and aren’t needed unless site conditions call for it. So, the standard minimum distance is two feet.