The Poole Bay Partnership
Poolebay.net was first published in response to the high level of public interest
in the major beach replenishment projects of 2005-
Copyright © 2005 -
Other sources of local coastal information
These pages contain only archived material
Equipment on the beach
Equipment at sea
Multicat workboat Stour
Trailing hopper dredger Magni R
Method
Lengths of pipe were brought to site by road and welded together on the beach to create a 600mm diameter pipeline (sinkerline) approximately 700m long which was towed from the beach, floated into position and then sunk to the seabed prior to the replenishment work.
At the seaward end of the sinkerline will be 36m of rubber pipes that will be lifted off the seabed and connected to the dredger every time it pumps sand to the shore.
The landward end of the sinkerline is fitted with a steel flange from which sections
of shoreline pipe (approximately 12m long) can be bolted together to discharge sand
to the required locations. Y-
Sand bunds are pushed both toward the seawall (for protection) and towards the shoreline to retain the new sand on the beach and avoid losses back to sea. The sand/water mixture from the pipeline flows in between these bunds where the sand settles on the beach, with the water returning to sea.
Sinkerline
Control valves on the pipeline
Pipes on the beach
Photos from a previous replenishment project at Poole
Bulldozers to move sand around
Excavator to move pipes into position
Pipe Loader to transport the pipes around the beach
Photos from a previous replenishment project at Poole
Equipment utilised for this project
Canford Cliffs Chine
The full extent of the completed sinkerline (700m) before it was moved offshore for the replenishment operation
Branksome Chine
The Rohde Nielsen dredger Magni R undertook dredging & replenishment works (pdf, 700kb)
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