What is the primary purpose of riprap in construction?

The primary purpose of riprap in construction is to prevent erosion. Riprap consists of loose stones or other materials used to form a protective layer on slopes, riverbanks, or shorelines. When water flows over these areas, it can erode the soil and underlying materials, leading to structural issues or loss of land. By using riprap, the energy and force of moving water are dissipated, thereby minimizing soil erosion and protecting vulnerable areas from being washed away.

While enhancing aesthetic appeal, providing structural support, and facilitating drainage are important in specific contexts for other materials, they are secondary to the main function of riprap, which is to act as an effective erosion control measure.