Table 5.22 -- EDCS Classifications whose label begins with S
| Label | Definition | Related concepts | Code |
| SAFARI_PARK | A park-like zoo in which wild animals are allowed to roam free in an environment designed to resemble their natural habitat and are observed by visitors riding through the park in cars or buses, e.g., a safari or animal park. | EC ZOO | 773 |
| SAFETY_FAIRWAY | A route established for the safe passage of vessels through either offshore petroleum fields or minefields, e.g., a safety fairway. | 774 | |
| SALT_EVAPORATOR | Shallow pools, normally man-made, used for the natural evaporation of water for the collection of salt. | 775 | |
| SALT_PAN | A flat tract of land covered by natural surface salt deposits. | 776 | |
| SAND_DUNE_REGION | A tract of land covered by ridges or hills of sand. | 777 | |
| SAND_LINE | A line delineating a tract of sand from the adjacent water, that covers and uncovers depending on the elevation of its surface above the vertical datum and the current elevation of the water surface. | EC LOW_WATER_LINE, EC MUD_LINE | 778 |
| SANITARIUM | A site and associated buildings that house an institution for the treatment of chronic diseases or for medically supervised recuperation. | EC MEDICAL_CENTRE | 779 |
| SATELLITE_GROUND_STATION | A structure with associated antennas used for tracking, control, or transmission/reception of signals from satellites. | 780 | |
| SAWMILL | A building where timber is processed into lumber. | EC TIMBER_YARD | 781 |
| SCENIC_LOOKOUT | A site, generally an elevated place, with facilities for observing the scenery. | 782 | |
| SCHOOL_BUILDING | A building used for instruction. | EC PRECOLLEGIATE_CAMPUS | 783 |
| SCRAP_YARD | The site of a scrap heap, specifically a place where scrap metal is collected. | EC WRECKING_YARD | 784 |
| SCRUB_LAND | A tract of land covered by uncultured plants that may have some woody tissue, e.g., scrub or brush. | EC BRUSH_LAND | 785 |
| SEA | A relatively large body of salt water completely or partially enclosed by land, and contained within an ocean. | EC OCEAN | 786 |
| SEAPLANE_BASE | A site supporting aircraft capable of taking off and landing on water, including associated buildings and facilities. | 787 | |
| SEAPLANE_RUN | A designated portion of water that may be outlined by visual surface markings, used by seaplanes to land and take off. | 788 | |
| SEAWALL | A structure built to protect the shore from erosion. | 789 | |
| SEAWEED | A site of large green, brown or dark red plants growing in a saltwater, typically cold, environment, e.g., kelp or seaweed. | 790 | |
| SEBKHA | A natural depression in arid or semi-arid regions whose bed is covered with salt encrusted clayey soil, e.g., a sebkha. | 791 | |
| SELF_PROPELLED_ARTILLERY | A self-propelled large-calibre firing weapon that is mounted or manned by a crew; e.g., a howitzer or cannon. | 792 | |
| SEMINARY | A site and associated buildings used as a school, especially a theological school for the training of priests, ministers, or rabbis. | EC CHURCH, EC WORSHIP_PLACE | 793 |
| SENIOR_CITIZENS_HOME | A residential building housing a group of elderly individuals. | EC HOUSE | 794 |
| SETTLEMENT | A concentration of dwellings which ranks smaller in size than a town, e.g., a settlement or village. | EC NATIVE_SETTLEMENT, EC TOWN | 795 |
| SETTLING_POND | A site where solid matter is precipitated from a liquid by evaporating or settling, e.g., a settling basin or sludge pond. | EC FILTRATION_BED, EC SLUDGE_GATE | 796 |
| SHANTYTOWN | A town or a section of a town consisting chiefly of shacks. | EC SETTLEMENT, EC TOWN | 797 |
| SHARP_CURVE | A curve along a route that may cause transportation restrictions. | 798 | |
| SHEAR_WALL | The wall facing of the excavation within a quarry or mine. | 799 | |
| SHED | A relatively small structure that is typically used for storage, usually characterized by one or more open sides, support pillars and a roof. | EC BARN | 800 |
| SHEERLEGS | A set of two or three spars standing on end and lashed together, aloft, which serve as a derrick or tripod to lift heavy weights, step or lower masts or stacks, or similar maritime purposes. | EC CRANE | 801 |
| SHELLFISH_BED | A place in shallow water where shellfish (e.g., oysters or mussels) breed and may be cultivated. | 802 | |
| SHIP_BASIN | An enclosure containing water for a dock for ships. | 803 | |
| SHIP_BERTH | The place where a ship lies when secured to a pier, wharf, dolphins, or dock; may also be a designated place away from the coastline. | 804 | |
| SHIP_STORAGE_ANCHORAGE | A defined expanse of water intended for long-term ship anchorage and storage. | 805 | |
| SHIPYARD | A site where ships are built or repaired. | 806 | |
| SHOPPING_CENTRE | A group of stores, and often restaurants and other businesses, having a common parking lot. | EC COMMERCIAL_BUILDING, EC MARKET, EC RETAIL_FACILITY | 807 |
| SHORE | The narrow strip of land in immediate contact with a sea or lake, including the zone between high and low water lines. | EC BACKSHORE_PRECISE, EC BEACH, EC COASTLINE, EC FORESHORE, EC FORESHORE_PRECISE, EC NEARSHORE_PRECISE, EC SHORELINE | 808 |
| SHORE_REVETMENT | A facing of stone or other material placed along the edge of a stream, river, or canal to stabilize the bank and to protect it from the erosive action of water flow. | 809 | |
| SHORELINE | The intersection of a specified plane of water with the shore or beach (e.g., the high water shoreline would be the intersection of the plane of mean high water with the shore or beach). | EC BACKSHORE_PRECISE, EC BEACH, EC COASTLINE, EC FORESHORE, EC FORESHORE_PRECISE, EC NEARSHORE_PRECISE, EC SHORE | 810 |
| SHORELINE_CONSTRUCTION | A fixed (not afloat) artificial structure attached to the land, and normally used for berthing and protection of vessels. | 811 | |
| SHOVEL | A machine for excavation in which large amounts of earth are moved by scooping action. | EC DRAGLINE, EC DREDGE | 812 |
| SHRIMP_BED | A naturally occurring significant grouping of shrimp that persists over a significant period. | 813 | |
| SHRUB | An individual low growing multi-stemmed woody plant. | EC HEDGEROW, EC TREE | 814 |
| SIDEWALK | A paved pedestrian walkway, usually made of concrete, typically located adjacent and parallel to a road. | EC TRAIL | 815 |
| SIGNAL_BOX_OR_HOUSE | An automated or manned structure located adjacent to a railroad which displays control information to passing trains. May be further delineated specifically as EC RAILROAD_SIGNAL_BOX or EC RAILROAD_SIGNALMAN_HOUSE. | 816 | |
| SIPHON | A pipe or tube used for conveying liquid from one level to a lower level, using the liquid pressure differential to force a column of the liquid up to a higher level before it falls to the outlet. | 817 | |
| SKI_JUMP | A ramp used for ski jumping. | 818 | |
| SKI_TRACK | A course prepared for skiing. | 819 | |
| SLIPWAY | A prepared slope for launching and recovering vessels, e.g., a slipway or patent slip. | 820 | |
| SLOPE_REGION | A region of the terrain whose (varying) slope falls within a set range of values. | 821 | |
| SLUDGE_GATE | A gate used to regulate the flow of sludge from a settling basin or sludge pond. | EC SETTLING_POND | 822 |
| SLUICE | An open, inclined conduit that is fitted with a gate for regulating water flow and may be employed in mine ore washing operations. | EC DAM, EC SLUICE_GATE | 823 |
| SLUICE_GATE | A gate used to regulate the flow of water. | EC DAM, EC SLUICE | 824 |
| SMALL_CRAFT_FACILITY | An installation with a certain function or service generally of interest for small craft or pleasure boats. | 825 | |
| SMOKESTACK | A large tall chimney or vertical pipe through which combustion vapours, gases, and smoke are discharged. | EC CHIMNEY | 826 |
| SNAG | A stem or trunk of a tree below the surface of water. | EC STAKE, EC PILE | 827 |
| SNOW_FIELD | A large region of land or water that is permanently covered by snow. | EC ICE_FIELD | 828 |
| SNOW_FIELD_OR_ICE_FIELD | A large region of land or water that is permanently covered by snow or ice. May be further delineated specifically as EC SNOW_FIELD or EC ICE_FIELD. | EC POLAR_ICE | 829 |
| SNOW_REGION | A region in which snow is falling, over land or water. | 830 | |
| SNOW_SHED | A shelter built to protect a section of road or railroad from snow slides. | EC GALLERY, EC ROCK_SHED | 831 |
| SNOW_SHED_OR_ROCK_SHED | A shelter built to protect a section of road or railroad from snow/rock slides. May be further delineated specifically as EC SNOW_SHED or EC ROCK_SHED. | 832 | |
| SODA_EVAPORATOR | A shallow pool, normally man-made, used for the natural evaporation of water for the collection of soda. | 833 | |
| SOLAR_BURST_RF_EMISSION | A burst radio-frequency emission from a sun. | 834 | |
| SOLAR_ENERGETIC_PARTICLE | A charged particle, including electron, proton, and alpha particles, emanating from a sun. | 835 | |
| SOLAR_FLUX_RF_EMISSION | A continuous (flux) radio-frequency emission from a sun. | 836 | |
| SOLAR_PANEL | A set of solar cells for converting sunlight into electrical energy or heat. | EC POWER_PLANT | 837 |
| SOLAR_WIND | The high-speed stream of charged particles emanating from a sun. | 838 | |
| SOUNDING | A measured water depth or spot depth that has been referenced to a vertical datum. | 839 | |
| SPACE | The three-dimensional expanse in which all matter is located, extending in all directions, lying beyond planetary atmospheres. | EC ASTRONOMICAL_STATION | 840 |
| SPACE_PORT | A facility for the launch, and sometimes landing, of spacecraft. | 841 | |
| SPACECRAFT | A vehicle operating mainly in space. | 842 | |
| SPECIAL_USE_AIRSPACE | An airspace of defined dimension identified by a delimited region where activities must be confined because of their nature and/or where limitations may be imposed on aircraft operations not associated with those activities. | 843 | |
| SPECIAL_USE_AIRSPACE_SGMT | A single segment of a special use airspace. | EC SPECIAL_USE_AIRSPACE | 844 |
| SPILLWAY | A passage for surplus water to run over, or around, a dam. | EC DAM | 845 |
| SPOT_ELEVATION | A designated location with an elevation value relative to a vertical datum. | 846 | |
| SPRING | A place where a concentrated, natural discharge of groundwater issues forth as a definite flow onto the surface of the land or into a body of surface water. | EC WATERING_HOLE, EC WELL | 847 |
| SPRING_OR_WATERING_HOLE | A natural outflow of water from below the ground surface. May be further delineated specifically as EC SPRING or EC WATERING_HOLE. | EC FOUNTAIN, EC WELL | 848 |
| STADIUM | An athletic sports ground or arena with tiered seats or terraces for spectators. | EC AMPHITHEATRE | 849 |
| STADIUM_OR_AMPHITHEATRE | An arena for holding and viewing (typically) sports events. May be further delineated specifically as EC STADIUM or EC AMPHITHEATRE. | 850 | |
| STAKE | A small marker used to identify maritime channels or to mark dangers such as rocks and shoals, e.g., a stake, pole, perch, or post. | EC PILE, EC SNAG | 851 |
| STATIONARY_FRONT | A boundary between warm and cold air masses which is moving at a speed less than 2,575 metres per second (five knots); e.g., a stationary or quasi-stationary front. | EC COLD_FRONT, EC WARM_FRONT | 852 |
| STEEL_MILL | A facility for the production of fabricated structural steel products, e.g., girders and plates. | EC INDUSTRIAL_COMPLEX_HEAVY | 853 |
| STEEP_GRADE | A stretch along a travelled way where the slope is high enough to slow, hinder, or even stop vehicular traffic. | 854 | |
| STEEPLE | A structure usually ending in a sharp point and which may be erected on a roof of a building. | 855 | |
| STEP_FLIGHT | A series of steps or stairs reaching from one level to another. | 856 | |
| STORAGE | A structure intended for the putting aside for future use of materials or products. | 857 | |
| STORAGE_BUNKER | A structure that may be covered or surrounded with earth that is resistant to ordnance where materials or products are stored, e.g., a storage bunker or mound. | EC FORTIFICATION | 858 |
| STORAGE_DEPOT | A site and associated buildings used for the storage of products or supplies. | EC DISPOSAL_SITE, EC WAREHOUSE | 859 |
| STORAGE_PIT | An excavated structure, lined by an impermeable material and surrounded with earth, used to store materials or products. | 860 | |
| STORAGE_TANK | A container used for the storage of liquids or gases. | 861 | |
| STRAIT | A narrow channel joining two larger bodies of water, e.g., seas or oceans. | EC MARINE_CHANNEL, EC OCEAN, EC SEA | 862 |
| STREET_LIGHT | A specially constructed device, generally located on a pole, which illuminates roads and sidewalks. | 863 | |
| SUBMERGED_ROCK | An isolated rocky formation or a single large stone above or below the water surface. | 864 | |
| SUBMERSIBLE_VEHICLE | A vehicle capable of operation either on the surface of the water (e.g., lake or ocean), or beneath it. | EC WATER_SURFACE_VEHICLE | 865 |
| SUBWAY | An underground, metropolitan electric railway or the tunnel through which it travels. | 866 | |
| SUGAR_CANE | A site of tall tropical southeast Asian grass (Saccharum officinarum) having thick, solid, tough stems that are a chief commercial source of sugar. | EC BAMBOO, EC WOODY_GRASS_LAND | 867 |
| SUN | The central star of the solar system containing the planet Earth. | 868 | |
| SUPPLIES_AND_EXPENDABLES | Equipment neither capable of self-propulsion nor otherwise assignable to another vehicle or equipment classification. | 869 | |
| SURVEY_POINT | An object or mark on the ground of known position, elevation, or both. | 870 | |
| SWAMP | A seasonally flooded bottomland with more woody plants than a marsh and better drainage than a bog. | EC BOG, EC MARSH | 871 |
| SWEPT_REGION | A region that has been determined to be clear of navigational dangers to a specified depth. | 872 | |
| SWIMMING_POOL | A constructed basin used for swimming, either outdoors or indoors. | 873 |