According to Ontario Reg 213/91 Construction Projects, what is a critical consideration regarding material placement when excavating a trench?

Question: According to Ontario Reg 213/91 Construction Projects, what is a critical consideration regarding material placement when excavating a trench?

Answer options:

• Excavated material (spoil) must be piled directly adjacent to the trench edge to facilitate backfilling. ✅ Spoil piles must be sloped away from the trench and kept at least 1.2 metres (4 feet) from the edge.
• Spoil should be placed on the low side of the trench to prevent it from rolling back in.
• There are no specific regulations regarding spoil placement, as long as it doesn't obstruct nearby traffic.

Correct answer: Spoil piles must be sloped away from the trench and kept at least 1.2 metres (4 feet) from the edge.

Explanation: Ontario Reg 213/91, Section 234(1)(b), states that excavated material shall be piled at least 1.2 m from the edge of the excavation to prevent it from falling back in and to reduce pressure on the trench wall, a critical safety measure.