What style of curb box fits loosely over the curb box and curb stop?

The correct answer is that the arch style curb box fits loosely over the curb box and curb stop. The arch style is designed with an arch-shaped top that allows it to sit over the curb box, providing easy access while also accommodating for movement from the curb stop below. This design ensures that it can be lifted without difficulty, which is essential for maintenance and operational tasks performed by distribution operators.

This style is particularly useful in areas where adjustments may be needed frequently, as the loose fit facilitates quick access to the curb stop when necessary. Other styles, while they have their specific uses, do not offer the same combination of accessibility and ease of operation that the arch style provides. Understanding the features of different curb box styles, including their shapes and fittings, is crucial for effective utility management and ensuring proper functionality in distribution systems.