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Dew Piling carries out temporary cofferdam works in Bridlington

25 Oct 2013

The £800,000 project was to install a 320 meter long, 4 meter deep sheet piled temporary cofferdam from the sea wall to the low water mark. This is to accommodate the beach works associated with the new 1.2 kilometer outfall pipe being installed by ABCO Marine on behalf of Yorkshire Water who are currently spending £40 million to improve overall beach and bathing quality at Bridlington.

Dew Piling were responsible for the design and installation of the cofferdam which utilizes in excess of 1000 tonnes of steel piles, 70 tonnes of steel waling beams and 130No high strength anchor bars all of which had to be installed within a strict 6 week tidal window otherwise the lower wing walls could not be accessed for another 4 weeks which raised unacceptable issues for the main contractor.

Dew mobilized 2No ABI Rigs, cranes and excavators to give the directly employed workforce as much support as possible to achieve the 6 week target and with 24 hour working through all weathers and tidal conditions successfully managed to install the works within time and budget.

The ABI Rigs equipped with the latest Variable Moment Vibration technology dealt admirably with the upper layers of sands and gravels and still had enough power to drive the toe of the piles into the stiff clays as required to create a seal to help prevent erosion from the relentless North Sea tides.

The pipe has now arrived in the UK from Norway and is due to be installed before the end of October giving Dew Piling another 6 week window thereafter to remove the entire cofferdam before the Christmas shutdown.


Pictured: On-going works at Bridlington
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