Which type of earth dike may NOT be used for clear water diversion?

The type of earth dike that may not be appropriate for clear water diversion is classified as A-1. This classification typically pertains to earth dikes designed for specific purposes that may not prioritize clear water management.

In the context of erosion and sediment control, clear water diversions are intended to separate uncontaminated water flow from the construction site to minimize sediment transport. Dikes that are suited for this purpose are usually constructed with specific characteristics that enable them to direct flow effectively without contributing to sediment loading.

The A-1 classification may involve conditions or designs that compromise their effectiveness in diverting clear water, such as insufficient side slopes or structural integrity to manage water flow without erosion. On the other hand, the other classifications, such as A-2, B-2, and A-3, are likely designed to handle the dynamics of clear water more efficiently, making them more suitable for use in these types of applications.

Understanding the specific uses and design constraints of each type of dike is crucial for ensuring proper erosion and sediment control practices, which can contribute significantly to environmental protection during construction activities.