Rip Rap (Class D, Revetment)

Rip Rap Revetment in Class D Size Range

Rip Rap in the Class D size range, specifically designed for revetment applications, consists of large, durable stones or broken concrete pieces engineered to protect shorelines, slopes, and embankments from erosion. The Class D designation typically refers to stones ranging from 12 to 24 inches in diameter, making them ideal for heavy-duty stabilization projects.

This material’s substantial size and angular shape allow it to interlock effectively, providing superior resistance to water flow and wave action. The revetment attribute means the rip rap is selected and placed to form a stable, protective barrier, reducing soil loss and preventing structural damage. Common uses include shoreline protection, riverbank stabilization, bridge abutment reinforcement, and large drainage channel lining. While its large size makes it less suitable for decorative or small-scale landscaping, it excels in high-energy environments where maximum erosion control is required. The main advantage of Class D revetment rip rap is its long-lasting performance and minimal maintenance needs, though installation may require heavy equipment due to the stone size.