Two types of Triangular Silt Dike give a choice of either regular or high flow application. The Foam Triangular Silt Dike is made from polyurethane foam with a geotextile fabric covering that will take care of most regular flow applications. The flexible, lightweight material makes it is easy to install even over uneven or rocky terrain. If a possible high flow application will be needed, the heavy duty Steel Tri Dike should be used. These are custom fabricated to lengths and fabrics needed for the particular project.