Recommended pole setting depth for a 45 ft pole in rock is?

The recommended pole setting depth for a 45 ft pole in rock is based on industry standards and practices that take into account the stability and anchorage of the pole in varying soil conditions. For poles installed in harder materials like rock, a depth of 4.5 feet strikes a balance that ensures the pole is securely set while also considering the unique challenges posed by rocky soil.

Setting the pole at this depth allows enough of the pole to be anchored securely in the ground, helping to resist environmental forces such as wind or ice loading that can affect its stability. Additionally, it takes into account the potential for movement or shifting that can occur in rocky soils, where setting too shallow may compromise the pole’s structural integrity.

The choices provided show incremental deepening options that may be more suited for different terrain. Options that suggest greater depth might be more suitable for softer soil types or specific environmental conditions, but in the case of solid rock, 4.5 feet is considered optimal for ensuring safety and durability. This depth also aligns with common guidelines for pole installation across utility and construction standards, which typically recommend varying depths based on pole height and site conditions.