Before revision: upright=1.2|Asphalt and sandbag revetment with a geotextile filter Revetments in stream restoration, river engineering or coastal engineering , are structures placed on banks or cliffs in such a way as to absorb the energy of incoming water .
After revision: upright=1.2|Asphalt and sandbag revetment with a geotextile filter A revetment in stream restoration, river engineering or coastal engineering is a facing of impact-resistant material (such as stone, concrete, sandbags, or wooden piles) applied to a bank or wall in order to to absorb the energy of incoming water .