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Cofferdam helps preserve submariner history

Balfour Beatty is currently working on installing a cofferdam around the only surviving World War II era submarine at the Royal Naval Submarine Museum in Gosport, Hampshire.

The £1.5M contract to protect HMS Alliance involves installing a sheet piled coffer dam around the submarine that was launched in 1945, which will be infilled to create a safe platform for the restoration work.

HMA Alliance was built in Asia and commissioned into the Royal Navy in 1947 before being decommissioned after 28 years in active service. Balfour Beatty Regional Civil Engineering is working to maintain visitor access to the submarine throughout the work.

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