Drainage element are needed in each civil engineering structures: landfils, retaining walls, basements, tunnels and other sub-surface structures. Drainage geocomposites can consist of a HDPE geonet and a nonwoven filter on one or on both sides,or monofiament geomats from polypropylene, with a filter nonwoven one or on both sides. TenCate drainage composites can guarantees a high water-flow capacity, especially at low overburden pressures is required.