Sand Fillet- Accretion trapped by a groin or other protrusion in the littoral zone.
Scour - Removal of underwater material by waves or currents, especially at the base or toe of a shore structure.
Screw Anchor - Type of metal anchor screwed into the bottom for holding power.
Seawall - Structure separating land and water areas primarily to prevent erosion and other damage by wave
action. See also BULKHEAD.
Semidiurnal Tide - Tide with two high and two low waters in a tidal day, each high and each low approximately
equal in stage.
Setup, Wind - Vertical rise in the Stillwater level on a body of water caused by piling up of water on the shore
due to wind action. Synonymous with wind tide and STORM SURGE. STORM SURGE usually pertains to the
ocean and large bodies of water. Wind setup usually pertains to reservoirs and smaller bodies of water.
Shallow Water - Commonly, water of such a depth that surface waves are noticeably affected by bottom
topography. It is customary to consider water of depths less than one-twentieth the surface wavelength as
shallow water.
Sheet Pile - see PILE, SHEET.
Shoot - Collective term applied to the STEM and leaves, or any growing branch or twig.
Shore - Narrow strip of land in immediate contact with the sea, inc uding the zone between high and low water
lines. A shore of unconsolidated material is usually called a beach.
Shoreline - 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). Line delineating the shoreline on
National Ocean Survey nautical charts and surveys approximates the mean high water line.
Sill - Low offshore barrier structure whose crest is usually submerged, designed to retain sand on its landward
side.
Silt - Generally refers to fine-grained soils having particle diameters between 0.003 and 0.00015 inches.
Intermediate between CLAY and SAND.
Slope - Degree of inclination to the horizontal. Usually expressed as a ratio, such as 1:25 or 1 on 25, indicating
1-unit vertical rise in 25 units of horizontal distance; or in degrees from horizontal.
Specifications - Detailed description of particulars, such as size of stone , quality of materials, contractor
performance, terms, and quality control.
Sprig - Single plant with its roots relatively bare, as pulled apart from a clump and used for transplanting.
Stem - Main axis of a plant, leaf-bearing and flower-bearing, as distinguished from the root-bearing axis.
Stillwater Level - Elevation that the surface of the water would assume if all wave action were absent.
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