Class B stones for riprap should weigh between what range?

Class B stones for riprap are specifically categorized for their weight to ensure effectiveness in erosion control and stability in various environmental conditions, like riverbanks and shorelines. The correct range for Class B stones is typically between 30 kg and 70 kg. This specified weight range provides an adequate balance between being heavy enough to resist displacement by water forces while still being manageable for placement and ensuring proper interlocking of stones.

The weight range is designed to optimize both the structural integrity and the hydraulic performance of the riprap, contributing to its purpose of preventing soil erosion. Utilizing stones that fall within this category supports the design criteria for applications needing significant durability and strength against water flow.