NASCLA Accredited Commercial General ContractorSite WorkEasy
A construction company is tasked with installing a new underground electrical conduit system across a developed commercial site. The trench for the conduit will be 3 feet wide and 4 feet deep. According to OSHA regulations, what is the minimum distance that excavated spoil piles must be kept from the edge of the trench?
- A1 foot
- B3 feet
- C4 feet
- D2 feet
Show answer & explanationAnswer & explanation
Correct answer: D. 2 feet
OSHA regulations (29 CFR 1926.651(j)(2)) require spoil piles to be kept at least 2 feet from the edge of excavations to prevent material from falling back into the trench and to maintain stability.
Why the other options are wrong
- A. 1 foot is insufficient for safety and compliance.
- B. 3 feet is more than the minimum but not the exact OSHA requirement.
- C. 4 feet is also more than the minimum but not the exact OSHA requirement.
OSHA Spoil Pile Distance
OSHA regulation 29 CFR 1926.651(j)(2) mandates that excavated material (spoil piles) must be placed at least 2 feet from the edge of an excavation.
- Minimum 2 feet distance.
- Prevents material from falling into the trench.
- Ensures worker safety and trench stability.
Memory trick: Spoil piles need a two-foot space, for safety in this dangerous place.