Groins

It is sometimes appropriate to upgrade channel linings by adding a groin structure that can be incorporated into the main body of the longitudinal protective work or firmly anchored to a foundation. In either case their function is to keep at a distance the more vigorous currents which could over-stress the main protective structure.

It is a known fact that scouring phenomena can occur at the head of groins. It is appropriate to widen the foundation apron of the protective structure near the groins. The unit construction of gabion baskets makes it easy to modify the original groin structure to suit varying parameters of the water course.