Glossary for the subject vD


Apron stortebed, bodembescherming (lett. beschermlap, Layer of stone, concrete or other material to protect the toe of a structure against scour.
bank oever Bank line is water line at mean low water
bollard prop The Dutch word has only this meaning as mooring post on a fascine mattress
boulder kei (volgens NEN5104:blok)- rolsteen [cattebol] A rounded rock more than 10 inches in diameter. A stone larger than a cobblestone. See SOIL CLASSIFICATION.
boulder cattebol
boulder clay keileem clay type formed in the ice age, including rocks from moraines; very resistant against erosion.
brick baksteen
bund kade, lage dijk (ca. 1 m hoog)
camber tonrondte
clay core kleikist
clear weir, perfect weir, clear overfall volkomen overlaat
clod kloeteling, kloet
closure bund sluitkade
closure gap sluitgat
cofferdam kistdam A temporary watertight structure enclosing all or part of the construction area so that construction can proceed in the dry.
cramp matting krammat
day works (construction in..) regiewerk (uitvoering in..)
dike fill dijkspecie
dike head dijkskop
dike reeve dijkgraaf appointed official responsible for dike maintenance, is accountable to the land owners (often an honorary job in the past)
estuary dam afsluitdam in een zeegat
faggot wiep Bundle of brushwood, with a circumference of approx. 50 cm, as part of a mattress.
fascine rijshoutconstructie
flat deck barge zolderbak simple box-shaped pontoon
flooding overstroming Overflow of water that submerges land that is usually dry.
floodplain uiterwaard, winterbed Part of the riverbed flooded during high river run-off
floodplain winterbed Part of the riverbed flooded during high river run-off
flow gap stroomgat gully trough which the flow is concentrated, especially used in case of closure works
flow slide zettingsvloeiing slide of a lrage quantity of soil due to liquefaction
foreshore vooroever The part of the shore, lying between the crest of the seaward berm (or upper limit of wave wash at high tide) and the ordinary low-water mark, that is ordinarily traversed by the uprush and backrush of the waves as the tides rise and fall. See BEACH FACE.
groyne (river groyne) krib (rivierkrib) short dam in a river perpendicular to the embankment with the purpose to concentrate the flow in the middle of the river
hard point bol minature spur
hurdle dijkhorde Screen made of wattle work around 13 thin stakes (sieze approx. 1.3 to 0.7 m). Used to protect a dike in case of emergency.
hydraulic jump watersprong
liquefaction zettingsvloeiing saturated sand behaving like a fluid
mattress (shore onnected) kraagstuk matress for slope protection around the water line
MHW volzee mean high water
mud flat slikken nearly marshy or muddy horizontal intertidal area mainly consisting of fines
naval shipworm paalworm a saltwater clam, Teredo Navalis, it tunnels into underwater piers and pilings and is a major cause of damage and destruction to submarine timber structures and the hulls of wooden boats
neap tide dood tij A tide occurring near the time of quadrature of the moon with the sun. The neap tidal range is usually 10 to 30 percent less than the mean tidal range.
osier dam rijzendam dam made from brushood (fascines)
peat veen
perimeter closure bund vingerling
quarry stone breuksteen Any stone processed from a quarry.
range pole, ranging rod jalon a red/white pole, used for marking the position of stations, and for sightings of those stations, as well as for ranging straight lines
reclamation scheme inpoldering
revetment steenzetting, bekleding A facing of stone, concrete, etc., built to protect a scarp, embankment, or shore structure against erosion by wave action or currents.
saltmarsh kwelder An area periodically flooded by water, usually above normal high water
scour hole wiel, kolkgat ersoion hoe due do scouring (in general) Note that the Dutch terms wiel and kolkgat are restricted to scour after a breach
sea defence zeewering
seaweed wier, zeewier macro-algae
secondary sea defence inlaagdijk
sink line zikstrop line to control a mattress during a sinking operation
slack water kentering The state of a tidal current when its velocity is near zero, especially the moment when a reversing current changes direction and its velocity is zero. Sometimes considered the intermediate period between ebb and flood currents during which the velocity of the currents is less than 0.05 meter per second (0.1 knot).
slightly silty clay spier
slip grondafschuiving
slope talud, helling, dosering
slope dosering, talud, helling
spring tide springtij extreme high tide occurring once every two weeks
spur (-dike), wingdam (USA) krib, scherm, hoofd
stone pitching gezette steenglooiing
storm surge stormvloed A rise above normal water level on the open coast due to the action of wind stress on the water surface. Storm surge resulting from a hurricane also includes that rise in level due to atmospheric pressure reduction as well as that due to wind stress. See WIND SETUP.
submerged weir, imperfect weir, submerged overfall onvolkomen overlaat
surge stormopzet
tender documents bestek en voorwaarden
tidal amplitude getijamplitude half of the tidal range
tidal divide, tidal meeting point wantij point where the tide comes from two sides, the waterlevel varies, but the velocity is zero
tidal flat slik, schor Marshy or muddy land areas which are covered and uncovered by the rise and fall of the tide.
tidal gully closure, tidal closure stroomgat sluiting closing a tidal entrance by closing the gully as last closing part
turf turf harvested peat from bogs for fuel
wattle work tuin, vlechttuin row of vertical piles in a mattress with thin wood inbetween (like a trellis)
wattle work vlechttuin row of vertical piles in a mattress with thin wood inbetween (like a trellis)
weir overlaat
wharf zate
wingdam (USA), spur hoofd, krib in tidal waters and rivers