{"thcode":3,"term":{"code":138,"name":"breakwaters","parent":526,"scope":"Structures built to break the force of waves or to restrain or direct current so as to protect a breach, harbor, or other waterfront facility. [USGS Circ 1048]"},"uf":[{"name":"moles (structural)","usewith":false},{"name":"seawalls","usewith":false}],"bt":[{"code":526,"name":"hydrographic structures","parent":643,"scope":"For constructed bodies of water. For natural water bodies, use 'hydrographic features'."},{"code":643,"name":"manmade features","parent":1,"scope":null},{"code":1,"name":"Categories","parent":null,"scope":null}],"nt":[],"rt":[{"code":221,"name":"coastal zones","parent":928,"scope":"Strips of land (of indefinite width) that extend from the low-tide line inland to the first major change in landform features. [Adapted from Glossary of Geology, 4th ed.]"},{"code":485,"name":"harbors","parent":526,"scope":"Sheltered areas of water where ships or other watercraft can anchor or dock. [USGS Feature Class Definitions <http:\/\/geonames.usgs.gov\/domestic\/feature_class.htm>]"},{"code":618,"name":"levees","parent":526,"scope":"Artificial embankments built along the bank of a watercourse or an arm of the sea, to protect land from inundation or to confine streamflow to its channel. [Glossary of Geology, 4th ed.]"}]}