MMC Diving Services

"Since 1964"

Telephone: 01983 864 330

  • Underwater Chain Sawing

    Underwater Chain Sawing

    Island Divers MMC complete underwater Chain sawing and underwater burning works on Yarmouth Pier.


Client: Yarmouth Harbour Commission

Principle Contractor: Mackley Construction

Duration: 2 weeks

Date posted: 26-07-2018

Mackley construction were commissioned to carry out major refurbishment works on the UK's longest wooden pier. The pier was originally opened in 1876, Yarmouth Pier on the Isle of Wight is an important historic landmark which stretches 186 metres into the Solent.

The project, which has been made possible through Heritage Lottery Funding, is being undertaken by Mackley working on behalf of the Yarmouth Harbour Commissioners.

The programme of works involved the installation of 50 reclaimed piles, the refurbished timbers were obtained from the new Portsmouth Dockyard Queen Elizabeth Berth which was another project that MMC divers spent over 18 months working on.

MMC supplied a full surface supplied dive team along with hydraulic cutting and broco burning equipment. Following the installation of some of the new steel piles MMC divers undertook underwater burning works to those piles whose tops had burred over during the pilling process and which was obstructing the reclaimed greenheart wooden tops from being inserted. The diver's inspected the damaged pile, set up a custom jig and once the cut was completed a video was handed to the client as part of the quality checks of all the cuts.

As part of the demolition process MMC divers then undertook underwater hydraulic chain sawing of the old existing greenheart piles down at bed level.

Prior to any operations, pre-dive checks and burning equipment checks are completed, along with daily dynamic risk assessments. The MMC dive supervisor then completed a daily tool box talk with Mackley's and the MMC team before confirming the daily job task requirements.

A full diver recovery drill including O2 and evacuation procedure was undertaken prior to undertaking operations.

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