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The Gallery | GPS used to install sea defences in Essex

Jones Bros has used GPS technology to complete phase one of its work on a £36M Essex coastal defence project.

The North Wales-based infrastructure firm constructed the first eight rock groynes needed for the Clacton to Holland-on-Sea scheme.

The GPS system allowed plant operatives to accurately install the rock groynes in water up to 1.5M deep.

After a short break, the firm will begin work on the remaining 15 groynes in mid-March, aiming to complete in the autumn.

The scheme – for which Tendring District Council is client, and VBA is main contractor – is designed to protect more than 3,000 properties from sea erosion. 

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