BRABANT FIGHTS AGAINST WATER
The veerse gat dam
closure of this estuary by the barrier was more complex as originally
The main problem focuses on the given fact that during the change of tides approximately 70-million m3 water flows through the Veerse Gat.
It is extremely difficult to build a barrier, which is able to sustain this two daily flow of water.
the old techniques it would certainly fail due to the strong currents. So
they had to develop new techniques. However the major part of the dam was build
basis the old techniques.
At the Beverland site the major part of the barrage was constructed on the shallows of sand bank called "Van Onrust" The barrage was protected bye asphalt to minimise the effects of tides and weather caused sea state.
the location an asphalt
plant was set up for this project to have direct delivery of the asphalt
mixture available when required.
In this way logistics improved and eliminated the time consuming
But the main problem still excists. The final gap of 320 meters which need to be closed.
huge amounts of water which are going in and out with the tides makes life
miserable for the construction of the last part of the barrier.
In 1959 all preparations are ready to close the last open part of the barrier. The goal was to start with dumping stones and shingles on top of zinkers to the treshols basis of the caissons. After finalizing this final 24 caissons were scuttled on the threshold.
you see the caissons and in the background you can see the barrier.
caissons were built in a special construction dock close to the site of the
differention compared to normal caissons was that these caissons were provided
with openings. Your reaction will be that it is strange to provide openings in
caissons. This is true but as the caissons had to stop the water but also had to
allow the tides running in and out during the construction this facilitates the
final construction of the barrier. The
caissons were provided with gate valves to allow the water run through.
last caisson was scuttled on April 24.
gate valves were closed on April 27 and as from that moment on the sea and tidal
range was of no more influence to the backland.
In this way .... the Veersemeer was created
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