{"thcode":3,"term":{"code":526,"name":"hydrographic structures","parent":643,"scope":"For constructed bodies of water. For natural water bodies, use 'hydrographic features'."},"uf":[{"name":"boat landings","usewith":false},{"name":"boat launches","usewith":false},{"name":"boat ramps","usewith":false},{"name":"sluices","usewith":false},{"name":"water mills","usewith":false}],"bt":[{"code":643,"name":"manmade features","parent":1,"scope":null},{"code":1,"name":"Categories","parent":null,"scope":null}],"nt":[{"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]"},{"code":164,"name":"canals","parent":526,"scope":"Artificial waterways with no flow or a controlled flow used for navigation (canal), or for draining or irrigating land (ditch). [USGS Circ 1048]"},{"code":299,"name":"dam sites","parent":526,"scope":"Areas including a dam and associated structures functioning to control the flow or raise the level of water. [USGS Circ 1048]"},{"code":430,"name":"gaging stations","parent":526,"scope":"Structures used to measure the condition of a hydrographic feature. [USGS Circ 1048]"},{"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.]"},{"code":760,"name":"offshore platforms","parent":526,"scope":"Structures erected in a sea primarily, but not exclusively, for the extraction of petroleum products. [Adapted from USGS Circ 1048]"},{"code":818,"name":"piers","parent":526,"scope":"Structures used to protect a harbor or shore, and serving also as a promenade or as landing places for vessels. [Glossary of Geology, 4th ed.]"},{"code":941,"name":"reservoirs","parent":526,"scope":"Artificially impounded bodies of water. [USGS Feature Class Definitions <http:\/\/geonames.usgs.gov\/domestic\/feature_class.htm>]"},{"code":1232,"name":"waterworks","parent":526,"scope":"Water facilities, including tanks, buildings, pumps, and pipes, that process water for cities, towns, or other municipalities. [Adapted from American Heritage Dic. of the English Language, 4th ed.]"}],"rt":[{"code":525,"name":"hydrographic features","parent":1,"scope":"For natural bodies of water. For constructed waterways, reservoirs, and such, use 'hydrographic structures'."},{"code":1013,"name":"seaplane bases","parent":25,"scope":"Installations supporting aircraft capable of taking off and landing on water. [NIMA Feature Attribute Coding Catalog (FACC)]"},{"code":1174,"name":"transportation features","parent":643,"scope":null},{"code":1235,"name":"wells","parent":643,"scope":"Manmade shafts or holes in the Earth's surface used to obtain fluid or gaseous materials. [USGS Feature Class Definitions <http:\/\/geonames.usgs.gov\/domestic\/feature_class.htm>]"}]}