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 |
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 |