Seamarks/Seamark Objects

Seamark tagging

This is the index of the items in the S-57 & S-101 Object catalogues and their OSM tag names. Each object has links to the page that describes the tagging of that particular object.

An additional overview for the selection of S-101 categories of objects can be found here: seamark categories of objects(en).

The complete index of S-101 attributes for the objects is at: seamark attributes.

Data on current object usage: seamark object usage

Object index

The value of the seamark:type=* tag is the object type and can be used in seamark:<object type>:<attribute> tags.

Object S-101 OSM element seamark:type Valid attributes IHO definition in S-101 DCEG INT-1(en) OpenSeaMap view

Anchorage area ACHARE anchorage category, restriction, danger_class An area in which vessels anchor or may anchor. N(en) 10, 12.1-9, 14; Q(en) 44

Anchor berth ACHBRT anchor_berth category, radius, danger_class A designated area of water where a single vessel, sea plane etc. may anchor. N(en) 11.1, 11.2

Beacon, cardinal BCNCAR beacon_cardinal category, colour, colour_pattern, construction, elevation, height, reflectivity, shape A beacon used in conjunction with the compass to indicate where the mariner may find the best navigable water. Q(en) 130.3

Beacon, isolated danger BCNISD beacon_isolated_danger colour, colour_pattern, construction, elevation, height, reflectivity, shape A beacon that is moored on or above an isolated danger of limited extent, which has navigable water all around it. Q(en) 130.4, (IQ 130.4?)

Beacon, lateral BCNLAT beacon_lateral category, colour, colour_pattern, construction, elevation, height, impact, reflectivity, shape, system A beacon used to indicate the port or starboard hand side of the route to be followed. Q(en) 91-92, 130.1

Beacon, safe water BCNSAW beacon_safe_water colour, colour_pattern, construction, elevation, height, reflectivity, shape A beacon used to indicate that there is navigable water around the mark. Q(en) 130.5

Beacon, special purpose/general BCNSPP beacon_special_purpose category, colour, colour_pattern, construction, elevation, height, reflectivity, shape A beacon primarily used to indicate an area or feature, the nature of which is apparent from reference to a chart, Sailing Directions or Notices to Mariners. Q(en) 130.6

Berth BERTHS berth minimum_depth, danger_class A named or numbered place where a vessel is moored at a wharf. F(en) 12, 19

Bridge BRIDGE bridge category, colour, colour_pattern, condition, clearance, construction, reflectivity, visibility, clearance_height, clearance_height_closed, clearance_height_open A structure erected over a body of water, railroad, etc. to provide a roadway for vehicles, pedestrians or to carry utility services. D 20-24

Bunker station bunsta bunker_station category A station, at which a ship is able to bunker fuel, water or ballast Only as keyword Fuel station and water supply for large ships (similar to facilities for small and pleasure crafts)

Building, single BUISGL building colour, colour_pattern, construction, elevation, function, height, reflectivity, shape, visibility A relatively permanent structure, roofed and usually walled. It is designed for some particular use which it may be important to indicate. D 5-6, 8, 13; E(en) 10.1, 10.3, 11, 13-18; F(en) 51, 60-63

Buoy, cardinal BOYCAR buoy_cardinal category, colour, colour_pattern, reflectivity, shape A buoy used in conjunction with the compass to indicate where the mariner may find the best navigable water. Q(en) 130.3

Buoy, installation BOYINB buoy_installation category, colour, colour_pattern, reflectivity A buoy used for loading tankers with gas or oil. L 16

Buoy, isolated danger BOYISD buoy_isolated_danger colour, colour_pattern, reflectivity, shape A buoy that is moored on or above an isolated danger of limited extent, which has navigable water all around it. Q(en) 130.4

Buoy, lateral BOYLAT buoy_lateral category, colour, colour_pattern, reflectivity, shape, system A buoy used to indicate the port or starboard hand side of the route to be followed. Q(en) 130.1

Buoy, safe water BOYSAW buoy_safe_water colour, colour_pattern, reflectivity, shape A buoy used to indicate that there is navigable water around the mark. Q(en) 130.5

Buoy, special purpose/general BOYSPP buoy_special_purpose category, colour, colour_pattern, reflectivity, shape A buoy primarily used to indicate an area or feature, the nature of which is apparent from reference to a chart, Sailing Directions or Notices to Mariners. Q(en) 50-62, 130.6

Cable area CBLARE cable_area category, restriction An area which contains one or more submarine cables. L 30.2, 31.2

Cable, overhead CBLOHD cable_overhead category, clearance_height, clearance_height_safe An overhead cable is an assembly of wires or fibres, or a wire rope or chain, which is supported by structures such as poles or pylons and passing over or nearby navigable waters. D 26, 27

Cable, submarine CBLSUB cable_submarine category, depth_buried An assembly of wires or fibres, or a wire rope or chain which has been laid underwater or buried beneath the seabed. L 30.1, 31.1, 32; Q(en) 42

Causeway CAUSWY causeway water_level A raised way across low or wet ground or water. F(en) 3

Checkpoint CHKPNT checkpoint category An official place to register, declare or check goods and people. F(en) 61

Coastguard station CGUSTA coastguard_station Watch keeping stations at which a watch is kept either continuously, or at certain times only. T(en) 10, 11

Communication area COMARE communication_area Indicates the coverage of an area, in which a vessel has to report or may request information. Similar to Radio reporting point M(en) 40.1, Radio reporting limit M(en) 40.2

Crane CRANES crane category A machine for lifting, shifting and lowering objects or materials by means of a swinging boom or with a lifting apparatus

Control point CTRPNT control_point category A point on the ground where position (horizontal and vertical) is used as a base for a dependent survey. Also referred to as a control station. B(en) 20-24 trigonometric point, reference point, fix point, hight/level mark, similar to survey_point in OSM

Daymark DAYMAR daymark category, colour, colour_pattern, shape The identifying characteristics of an aid to navigation which serve to facilitate its recognition against a daylight viewing background. Q(en) 101-102

Distance mark DISMAR distance_mark category, distance, units A distance mark indicates the distance measured from an origin and consists of either a solid visible structure or a distinct location without special installation. B(en) 25.1-2

Dredged area DRGARE dredged_area An area of the bottom of a body of water which has been deepened by dredging. I 20-23

Dumping ground DMPGRD dumping_ground category A sea area where dredged material or other potentially more harmful material, e.g. explosives, chemical waste, is deliberately deposited. N(en) 23, 24, 62.1, 62.2

Exceptional navigation structure EXCNST exceptional_structure category An exceptional navigational construction like aqueduct, lift-lock, etc. Similar to section F(en)

Fairway FAIRWY fairway restriction That part of a river, harbour and so on, where the main navigable channel for vessels of larger size lies. M(en) 18

Ferry route

FERYRT

ferry_route

category

A route in a body of water where a ferry crosses from one shoreline to another.

M(en) 50, 51

Fence/Wall FNCLNE wall category A man-made barrier used as an enclosure or boundary or for protection. no equivalent in INT-1, see also OSM key barrier(en)

Fog signal FOGSIG fog_signal category, frequency, generation, group, period, range, sequence A warning signal transmitted by a vessel, or aid to navigation, during periods of low visibility. R(en) 1, 10-16, 20-22

Fortified structure FORSTC fortified_structure category A structure that is specifically designed or reinforced to provide for defence from armed attack. E(en) 34.1-3

Fishing facility FSHFAC fishing_facility category A structure in shallow water for fishing purposes which can be an obstruction to ships in general. K 44, 45

Gate GATCON gate category A structure that may be swung, drawn, or lowered to block an entrance or passageway. F(en) 27, 41.1-2, 42-43

Gridiron GRIDRN gridiron water_level A structure in the intertidal zone serving as a support for vessels at low stages of the tide to permit work on the exposed portion of the vessel's hull. F(en) 24

Harbour basin hrbbsn harbour_basin An enclosed area of water surrounded by quay walls constructed to provide means for the transfer of cargos from and to ships. no direct equivalent, in relation to F(en) 10-13, 27, 28

Harbour facility HRBFAC harbour category A Harbour installation with a service or commercial operation of public interest. A body of water providing protection for vessels, and providing anchoring and docking facilities. F(en) 10, 11.1, 50

Hulk HULKES hulk category The hull of a wrecked or condemned ship, which is moored in a permanent position or grounded. F(en) 34

Inshore traffic zone ISTZNE inshore_traffic_zone restriction A routing measure comprising a designated area between the landward boundary of a traffic separation scheme and the adjacent coast, to be used in accordance with the provisions of the International Regulations for Preventing Collisions at Sea. M(en) 25.1, 25.2

Landmark LNDMRK landmark category, colour, colour_pattern, construction, elevation, function, height, reflectivity, visibility A prominent object at a fixed location which can be used in determining a location or a direction. D 8; E(en) 10.2-10.4, (17, 19, 20, 21,) 22-31; L 11; Q(en) 100 see Seamarks/Landmarks

Light LIGHTS light category, character, colour, exhibition, group, height, multiple, orientation, period, range, sector_start, sector_end, sequence, visibility A luminous or lighted aid to navigation. Light. Lighthouse. An all around light is a light that is visible over the whole horizon of interest to marine navigation. Secotr lights present different appearances (in particular, different colours) over various parts of the horizon of interest to maritime navigation. P(en) 1-65, (66)

Major light LIGHTS light_major category, character, colour, exhibition, group, height, multiple, orientation, period, range, sector_start, sector_end, sequence, visibility An important luminous aid to navigation, light, lighthouse, to which a name can be attributed. Generally, a major light may be considered to be a light intended for use at sea, usually with a range of 15 miles or more, and in outer approaches to harbours. The IALA Maritime Buoyage System rules (INT-1 Q 130) do not apply for most landfall lights. In general, sector lights follow IALA convention when used for marking a channel. P(en) 1, (1-66)

Minor light LIGHTS light_minor category, character, colour, exhibition, group, height, multiple, orientation, period, range, sector_start, sector_end, sequence, visibility A luminous or lighted aid to navigation, light. The IALA Maritime Buoyage System rules (INT-1 Q 130) will apply to minor lights, but not to leading lights. P(en) 1, (1-66)

Light float LITFLT light_float colour, colour_pattern, reflectivity A boat-like structure used instead of a light buoy in waters where strong streams or currents are experienced, or when a greater elevation than that of a light buoy is necessary. Q(en) 30

Light vessel LITVES light_vessel colour, colour_pattern, reflectivity A distinctively marked vessel anchored or moored at a charted point, to serve as an important floating aid to navigation with major light. P(en) 6

Lock basin LOKBSN lock_basin A lock basin is a wet dock in a waterway, permitting a ship to pass from one level to another. F(en) 41.1

Marine farm/culture MARCUL marine_farm category, restriction, water_level An assemblage of cages, nets, rafts and floats or posts where fish, including shellfish, are artificially cultivated. K 47, 48

Military practice area MIPARE military_area category, restriction An area within which naval, military or aerial exercises are carried out. Also called an 'exercise area'. N(en) 30-33

Mooring/Warping facility MORFAC mooring category, colour, colour_pattern, construction, height, reflectivity, shape, visibility, water_level The equipment or structure used to secure a vessel. F(en) 20-22; Q(en) 40-43

Marine protected area ? MPAARE (not continued in S-101, DCEG now refers to RESARE) ? protected_area (to be changed to restricted_area) (RESARE-CATREA category, restriction) Any area of the intertidal or sub-tidal terrain, together with its overlying water and associated flora, fauna, historical and cultural features, which has been reserved by law or other effective means to protect part or all of the enclosed environment. N(en) 22

Navigation line NAVLNE navigation_line category, orientation A straight line extending towards an area of navigational interest and generally generated by two navigational aids or one navigational aid and a bearing. M(en) 1-2, (3); Q(en) 122

Notice mark

notmrk, BOYSPP-CATSPM=18, BCNSPP-CATSPM=18, DAYMAR-CATSPM=18

notice

addition, category,

condition, distance_start, distance_end, distance_up, distance_down, function, impact, system, system=cevni

A notice board or sign indicating information to the mariner. A signboard used to indicate prohibitions, regulations, restrictions, recommendations and general information which apply to a waterway or a section of a waterway.

Q(en) (101,) 126, Inland waterway signs (CEVNI)(en)

+ many more

Obstruction, foul ground OBSTRN obstruction category, water_level In marine navigation, anything that hinders or prevents movement, particularly anything that endangers or prevents passage of a vessel. Areas over which it is safe to navigate but which should be avoided for anchoring, taking the ground or ground fishing. K 1, 31, 40-43, 46; L 21, 23; Q(en) 42

Oil barrier OILBAR oil_barrier A construction to dam oil flow on water. F(en) 29

Offshore platform, floating storage OFSPLF platform category, colour, colour_pattern, construction, condition, height, product, reflectivity, visibility A permanent offshore structure, either fixed or floating, used in the production of oil or natural gas. L 2, 10-15, 17

Offshore production area OSPARE
PRDARE production_area category, condition, height, reflectivity, restriction, visibility An area at sea within which there are production facilities. L 4, 5.2

Pilot boarding place PILBOP pilot_boarding category, channel The meeting place to which the pilot comes out. T(en) 1.1-4

Pile PILPNT pile category, colour, colour_pattern, condition, height, visibility A long heavy timber or section of steel, wood, concrete, etc. forced into the earth which may serve as a support, as for a pier, or a free standing pole within a marine environment. F(en) 22

Pipeline area PIPARE pipeline_area category, condition, restriction An area containing one or more pipelines. L 40.2, 41.2

Pipeline, overhead PIPOHD pipeline_overhead category An overhead pipeline is a pipeline supported by pylons and passing over or nearby navigable waters. D 28

Pipeline, submarine/on land PIPSOL pipeline_submarine category, condition, depth_buried, product A connected set of pipes for conveying liquids, slurries, or gases. A pipeline lying on or buried under the seabed or the land. D 29; L 40.1, 41.1, 42, 44

Pontoon PONTON pontoon A floating structure, usually rectangular in shape which serves as landing, pier head or bridge support. F(en) 16

Precautionary area PRCARE precautionary_area restriction A routeing measure comprising an area within defined limits where ships must navigate with particular caution and within which the direction of traffic flow may be recommended. M(en) 16, 24

Pylon/bridge support PYLONS pylon category, water_level A vertical construction consisting, for example, of a steel framework or pre-stressed concrete to carry cables, a bridge, etc. D 26

Radar line RADLNE radar_line Recommended tracks along which ships can be guided by coastal radar stations in the event of bad visibility. Also known as a radar guided track. M(en) 32.1-2

Radar range RADRNG radar_range Indicates the coverage of a sea area by a radar surveillance station. Inside this area a vessel may request shore-based radar assistance, particularly in poor visibility. M(en) 31

Radar reflector RADRFL radar_reflector height A device capable of, or intended for, reflecting radar signals. S(en) 4

Radar transponder beacon RTPBCN radar_transponder category, group, range, sector_start, sector_end, sequence, wavelength A transponder beacon transmitting a coded signal on radar frequency, permitting an interrogating craft to determine the bearing and range of the transponder. Also called racon. S(en) 2-3

Radar station RADSTA radar_station category, channel, height, range A station with a transmitter emitting pulses of ultra-high frequency radio waves which are reflected by solid objects and are detected upon their return to the sending station. M(en) 30; S(en) 1

Radio calling-in point RDOCAL calling-in_point channel, orientation, traffic_flow On passing a radio calling-in point or crossing a defined line vessels are required to report on VHF to a Traffic Control Centre. M(en) 40.1-2

Radio station RDOSTA radio_station category, callsign, channel, frequency A place equipped to transmit radio waves. S(en) 10-16

Recommended route centerline RCRTCL recommended_route_centreline A recommended route centerline indicates the 'centerline' of a recommended route (often marked by centerline buoys). M(en) 28.1

Recommended track RECTRC recommended_track traffic_flow, orientation A route which has been specially examined to ensure so far as possible that it is free of dangers and along which ships are advised to navigate. That portion of a 'navigation line' that a ship should use for navigation. M(en) 3-6

Recommended traffic lane RCTLPT recommended_traffic_lane orientation A traffic flow pattern indicating a recommended directional movement of traffic where it is impractical or unnecessary to adopt an established direction of traffic flow. Indicates the recommended traffic flow e.g., between two TSS, in the entrance areas of a TSS, beside a deep water route. M(en) 26.1-2

Rescue station RSCSTA rescue_station category A place where equipment for saving life at sea is maintained. Also called life saving station. T(en) 12-14

Restricted area RESARE restricted_area category, restriction A specified area on land or water designated by an appropriate authority within which access or navigation is restricted in accordance with certain specified conditions. L 3; M(en) 29.1; N(en) 2.1-2, 20-22, 25, 34, 63

Retro-reflector RETRFL retro_reflector A means of distinguishing unlighted marks at night. Retro-reflective material is secured to the mark in a particular pattern to reflect back light. Q(en) 6

Sand waves SNDWAV sand_waves A large mobile wave-like sediment feature in shallow water and composed of sand. The wavelength may reach 100 metres, the amplitude may be up to 20 metres. J(en) 14

Seabed area

SBDARE

seabed_area

surface, surface_qualification, water_level

A region of the seabed including the material of which it is composed and its physical characteristics. Also called nature of bottom, character (or characteristics) of the bottom, or quality of the bottom.

J(en) 1-12, 20-22, 30-39

S

St.G
R
pattern for areas according to INT-1 J20 and according to S-101 portrayl catalogue for INT-1 J21 J22 is not yet implemented completely in the rendering

Sea area/named water area SEAARE sea_area category A geographically defined part of the sea or other navigable waters. It may be specified within its limits by its proper name. No equivalent in INT-1

Seagrass SEAGRA seagrass category Any of various submerged monocotyledonous plants (such as Posidonia, eelgrass (Zostera), tape grass (Hydrocharitaceae), turtle grass (Thalassia testudinum) and other Cymodoceaceae) of tropical to temperate usually shallow coastal waters that have narrow grasslike leaves and often form dense underwater meadows. (now distinct from Weed/Kelp, macroscopic marine algae), see change and symbol proposed for S-4 and S-101 DCEG J(en) 13.3, 13.4 Sg

Sea-plane landing/operating area SPLARE seaplane_landing_area restriction A designated portion of water for the landing and take-off of sea-planes. N(en) 13

Silo, tanks SILTNK tank category, colour, colour_pattern, construction, elevation, height, reflectivity, visibility A large storage structure used for storing loose materials, liquids and/or gases. E(en) 2, 32-33

Shoreline construction, protection structures and harbour installations SLCONS shoreline_construction category, construction, height, reflectivity, visibility, water_level A fixed artificial structure in the water and/or adjoining the land. It may also refer to features such as training walls, which are not necessarily connected to, nor form part of the shoreline. F(en) 2.1, 2.2, 4.1-6.3, 12-15, 23, 30-33.2

Signal station, traffic SISTAT signal_station_traffic category, channel A traffic signal station is a place on shore from which signals are made to regulate the movement of traffic. T(en) 21-25.2

Signal station, warning SISTAW signal_station_warning category, channel A warning signal station is a place on shore from which warning signals are made to ships at sea. T(en) 20, 26, 28-36

Small craft facility SMCFAC small_craft_facility category A place at which a service generally of interest to small craft or pleasure boats is available. E(en) 37.1-2; F(en) (11.1, 11.2,) 11.3, 19.2; Q(en) 45 + many more

Spring in seabed SPRING spring A natural issue of water or other substances from the earth. One on the bottom of the sea is called a 'submarine spring'. J(en) 15

Submarine transit lane SUBTLN submarine_transit_lane restriction A lane where submarines may navigate under water or at the surface. N(en) 33

Topmark TOPMAR (as attribute in S-101, additional attributes: COLOUR, TOPSHP) topmark colour, colour_pattern, shape A characteristic shape secured at the top of a buoy or beacon to aid in its identification. Q(en) 9-11 + many more

Traffic separation scheme boundary TSSBND separation_boundary category The outer limit of a traffic lane part or a traffic separation scheme roundabout. M(en) 15

Traffic separation scheme crossing TSSCRS separation_crossing category, restriction A defined area where traffic lanes cross. M(en) 23

Traffic separation scheme lane part TSSLPT separation_lane category, restriction An area within defined limits in which one-way traffic flow is established M(en) 20.1-3, 22

Traffic separation line TSELNE separation_line category, orientation, restriction A line separating the lanes in which ships are proceeding in opposite, or nearly opposite directions; or separating a traffic lane from an adjacent sea area; or separating traffic lanes designated for particular classes of ships proceeding in the same direction. M(en) 12

Traffic separation scheme roundabout TSSRON separation_roundabout category, restriction A routeing measure comprising a separation point or circular separation zone and a circular traffic lane within defined limits. Traffic within the roundabout is separated by moving in a counter clockwise direction around the separation point or zone. M(en) 21

Traffic separation zone TSEZNE (not TSSZNE) separation_zone category, restriction A zone separating the lanes in which ships are proceeding in opposite or nearly opposite directions; or separating a traffic lane from an adjacent sea area; or separating traffic lanes designated for particular classes of ships proceeding in the same direction. M(en) 13, 20.1, 20.3, 21

Turning basin trnbsn (not in S-101) turning_basin An area of water or enlargement of a channel used for turning vessels. Only as keyword

Two-way route part TWRTPT two-way_route An area of a two-way route within which traffic flow is generally along one bearing M(en) 28.2

Underwater/awash rock UWTROC rock surface, surface_qualification, water_level A concreted mass of stony material or coral which dries, is awash or is below the water surface. K 11-15

Vegetation VEGATN vegetation category Plants collectively or individually, especially those dominating a particular area or habitat. C 14, 30, 31.1-8, 32, 33

Virtual AIS aid to navigation VIRATN virtual_aton category, mmsi An Automatic Identification System (AIS) message 21 transmitted from an AIS station to simulate on navigation systems an Aid to Navigation which does not physically exist. S(en) 18 + many more

Vehicle transfer vehtrf (not in S-101 as such, compare harbour facilities CATHAF=ferry terminal) vehicle_transfer category A place where vehicles can be loaded or unloaded from the inland vessel with onboard or on-shore facilities. Similar to F(en) 50, M(en) 50, 51

Water turbulence WATTUR water_turbulence category The disturbance of water caused by the interaction of any combination of waves, currents, tidal streams, wind, shoal patches and obstructions. H 44, 45; K 17

Waterway gauge, tide scale wtwgag, no equivalent object in S-101, similar to tide signal station (CATSIW=water level gauge), tide scale/gauge (CATSIW=tide scale/gauge) waterway_gauge category A waterway gauge is an instrument for measuring water levels. F(en) 32.1, 32.2, 33, H 30

Weed/Kelp WEDKLP weed category Any macroscopic marine algae. Kelp is one of an order (laminariales) of usually large, blade-shaped or vine-like brown algae. (now excluding seagrass), see change and symbol proposed for S-4 and S-101 DCEG J(en) 13.1, 13.2 Wd

Wreck WRECKS wreck category, depth, reflectivity, visibility, water_level The ruined remains of a stranded or sunken vessel which has been rendered useless. K 20-31