OSHA 30 Hour Construction Program Practice Test

What is the minimum distance that spoils should be placed from an excavation's edge?

1. 1 foot

2. 2 feet

3. 3 feet

4. 4 feet

The correct answer is: 2 feet

The minimum distance that spoils should be placed from the edge of an excavation is two feet. This guideline is critical for maintaining the stability of the excavation site. When soil piles are too close to the edge, they can create additional lateral pressure on the walls of the excavation and increase the likelihood of a collapse. The distance of two feet allows for a safety buffer that minimizes the risk of soil shifting or instability, helping to protect workers and maintain a safe working environment around the excavation. Keeping spoils this distance away ensures better drainage as well, which can prevent water accumulation that may further weaken the excavation walls. It also provides space for workers to operate without being in close proximity to the edge, reducing potential hazards.