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Hesselberg Hydro

Geomat DM20

Structure and Properties

  • Thin layer of 3-D geotextile filled with a ‘mini’ Open Stone Asphalt mixture.
  • Open structure allows plants to grow through – vegetation cover is rapid and improves erosion resistance.
  • Withstands waves up to ~0.3m and currents up to ~ 2.5 m/s.
  • Prefabricated in rolls up to 4.8m wide and up to 25 metres long
  • Can be placed above or below water


  • Lightweight erosion protection for river training and lakes / lagoons.
  • Used in environmentally sensitive areas as vegetation soon grows through it.