Groin - A long, narrow, man-made jetty, usually extending roughly perpendicular to the shoreline to protect the bank or shore from erosion.
sharp edges where surfaces meet in a groin vault, not covered by ribs.
a solid structure built at an angle from a shore prevent erosion from currents, tides and waves, or to trap sand
The sharp edge formed by the intersection of vaulting surfaces.
vaulted: the type of vaulting you get at the intersecion of two barrel vaults placed perpendicular to each other.
An arch construction formed by two segmental arches intersecting each other at right angles. A construction of timber and stone built out into a stream to retard or deflect the current.
A structure projecting from shore and designed to break the current, thereby checking erosion or shoaling.
barrier built out of a seashore or riverbank to protect the land from erosion and sand movements
a low narrow jetty constructed of timber, stone, concrete or steel, usually extending roughly perpendicular to the shoreline.
a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away
a barrier built at right angle to the beach to trap sand that is moving parallel to the shore
a jetty built at an angle to the shore line, to control the waterflow and currents, or to protect a harbor or beach
a low, narrow jetty made perpendicular to the shoreline to trap sand in order to build up a beach
an erosion-control structure built perpendicular to the shoreline
a relatively slender permeable or impermeable barrier structure aligned and constructed to trap littoral drift or retard erosion of the shore
a rock barrier built out into the water from the beach
a similar but usually smaller structure extending perpendicularly from the shoreline out into the water with the purpose of affecting the movement of sand/ sediments in anticipation of reducing the rate of sand migration/erosion
angle at the intersection of two surfaces in a vault
A structure extending from the bank of a stream in a direction transverse to the current. Many names are given to this structure, the most common being "spur," "spur dike," "transverse dike," "jetty," etc. Groins may be permeable, semi-permeable, or impermeable.
the angle formed by an intersection of vaults, the principle ribs formed at the intersection of the ceiling surfaces of a cross vault
the line formed by the intersection of two arches which cross over each other at any angle.
A structure that juts out into a body of water perpendicular to the shoreline and is built to restore an eroding beach by intercepting longshore drift and trapping sand.
The edge formed by the intersection of two vaults.
A shore-protection structure (built usually to trap littoral drift or retard erosion of the shore). It is narrow in width (measured parallel to the shore) and its length may vary from tens to hundreds of meters (extending from a point landward of the shoreline out into the water). Groins may be classified as permeable (with openings through them) or impermeable (a solid or nearly solid structure).
A shore protection structure. It is narrow in width (measured parallel to the shore) and its length may vary from tens to hundreds of meters ( extending from a point landward of the shoreline out into the water). Groins may be classified as permeable (with openings thorough them) or impermeable ( a solid or nearly solid structure through which sand cannot pass)
a rigid structure built more or less perpendicular to the beach for the purpose of trapping sand for the beach
a shore-protection structure that projects away from shore, usually made of rocks, wood pilings, or sheet metal.
The edge of intesecting vaults
a shore protection structure, usually built perpendicular to the shore to trap littoral drift or retard erosion of the shore.
That area along the contact (or intersection) of the face of a dam with the abutments.
A shore protection structure built perpendicular to shore to trap sand and retard shore erosion. Groins can also result in erosion downdrift of the groin.
1. The sharp, curved edge, which is formed at the junction of two intersecting vaults in a structure. 2. The rib of wood or stone, which covers the edge.
The word groin has two meanings, one a body part and the other an erosion control structure.
