English: Phoenix Caisson Part of the Mulberry harbours that were assembled for D-Day in June 1944. The caissons were the main protective breakwater for the pier and over 200 were constructed filled with compressed air and designed to sink or float as was necessary. This one was towed to the East Road from its construction point in the Thames then sunk so as to avoid detection to be resurrected (Hence the name) when needed on D-Day. Unfortunately this one got stuck in the silt and sand on the sea floor and has remained there ever since becoming visible at low tide. A low spring has enabled me to walk into the square and take the image using a zoom to get a close up view.
This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Simon Carey and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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== {{int:filedesc}} == {{Information |description={{en|1=Phoenix Caisson Part of the Mulberry harbours that were assembled for D-Day in June 1944. The caissons were the main protective breakwater for the pier and over 200 were constructed filled with comp