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R.H. Charlier and Chr. P. De Meyer
Gravel : Small, rounded granules of rock with individual diameters ranging from
7.62 to 0.46 cm (3.0 to 0.18 inches). Gravels are intermediate between
SAND and COBBLES.
Groin : A fingerlike structure built perpendicular to the shoreline, usually with
other groins, to trap littoral drift or retard erosion of the shore.
Groin Field : Series of groins acting together to protect a section of beach. Also
called a groin system.
Groundwater : Water within the earth that supplies wells and comes to the
surface by seepage or in springs.
Grout : Mixture of Portland cement, fine aggregates (usually sand), and water.
Usually used to seal openings or fill bags or other containers.
H-Pile : Straight length of structural steel with an H-shaped cross section
designed for driving into the earth.
High Water : See HIGH TIDE.
High Water Line : Intersection of the level of MEAN HIGH WATER with the
shore. Shorelines on navigation charts are approximations of the high water
line.
High Tide : Maximum elevation reached by each rising tide. See also TIDE.
Hogwire : Short, smooth-wire fencing of the kind normally used to enclose a pig
sty.
Impermeable : Not having openings large enough to permit water to freely pass.
Intertidal Zone : Land area alternately inundated and uncovered by tides.
Usually considered to extend from MEAN LOW WATER to MEAN HIGH
WATER.
Jetting : A method of placing piles by forcing water around and under a pile to
displace and lubricate the surrounding soil, allowing the pile to sink to the
desired position.
Lee : Sheltered, part or side facing away from wind or waves.
Leeward : Direction toward which wind is blowing or waves are traveling.
Littoral : Of or pertaining to a shore.
R.H. Charlier and Chr. P. De Meyer
Gravel : Small, rounded granules of rock with individual diameters ranging from
7.62 to 0.46 cm (3.0 to 0.18 inches). Gravels are intermediate between
SAND and COBBLES.
Groin : A fingerlike structure built perpendicular to the shoreline, usually with
other groins, to trap littoral drift or retard erosion of the shore.
Groin Field : Series of groins acting together to protect a section of beach. Also
called a groin system.
Groundwater : Water within the earth that supplies wells and comes to the
surface by seepage or in springs.
Grout : Mixture of Portland cement, fine aggregates (usually sand), and water.
Usually used to seal openings or fill bags or other containers.
H-Pile : Straight length of structural steel with an H-shaped cross section
designed for driving into the earth.
High Water : See HIGH TIDE.
High Water Line : Intersection of the level of MEAN HIGH WATER with the
shore. Shorelines on navigation charts are approximations of the high water
line.
High Tide : Maximum elevation reached by each rising tide. See also TIDE.
Hogwire : Short, smooth-wire fencing of the kind normally used to enclose a pig
sty.
Impermeable : Not having openings large enough to permit water to freely pass.
Intertidal Zone : Land area alternately inundated and uncovered by tides.
Usually considered to extend from MEAN LOW WATER to MEAN HIGH
WATER.
Jetting : A method of placing piles by forcing water around and under a pile to
displace and lubricate the surrounding soil, allowing the pile to sink to the
desired position.
Lee : Sheltered, part or side facing away from wind or waves.
Leeward : Direction toward which wind is blowing or waves are traveling.
Littoral : Of or pertaining to a shore.