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Messing about in Brightlingsea marina

PILING WAS due to complete this month for the building of a new 60-berth marina at a disused shipyard in the Essex seaside town of Brightlingsea.

Contractor Haven Ports (Marine and Construction Management) is installing 1,200 PU32 (similar to LX32s) sheet steel piles using a BSP SL30da piling hammer.

Most of the sheet piles are 14.5m to 16.8m long and were driven to length into silty, sandy clay.

A number of 18.5m piles were also used and all were capped with concrete and/or steel.

The SL30da hammer features a double acting cylinder that accelerates the ram on its downward path to achieve high impact energy from a short stroke.

BSP claims this leads to a higher blow rate and greater pile productivity compared with an equivalent single-acting hammer.

The next phase of the project will include construction of apartments, townhouses, restaurants and shops.

Overall completion is expected in about four years.

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