These blocks are under water at high tide, allowing a barge to be floated onto them. They dry out at low tide to allow access to the flat bottoms of Thames sailing barges for scraping off barnacles and weed and applying antifouling. They also allow limited repair work to be done between tides.
They are the last original barge blocks left on the east coast of England [1].
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2009-05-14 17:14 WillKemp 1000×664× (226908 bytes) The barge blocks at Cooks yard on the [[River Blackwater, Essex|River Blackwater]] in [[Maldon, Essex]], England. These blocks are under water at high [[tide]], allowing a barge to be floated onto them. They dry out at low tide to allow access to the fla
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{{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|The barge blocks at en:Cooks yard on the River Blackwater in [[:e