Pictures from Ari Phoutrides' Album

The Mulberry Harbors

Mulberries were artificial ports and breakwaters placed into position off Arromanches and Saint Laurent. They had been in
construction for approximately 2 years prior to the invasion.  The "docks" consisted of floating piers connected by treadway 
to the beach.  The piers were devised so that the platform, or roadway, could slide up and down with the tide on four posts that rested on the sea bottom.  The breakwater combined hollow,  floating concrete caissons about six stories high with old merchant ships. Lined up end to end off the French Coast, the ships and caissons were sunk by opening their sea cocks. 

The Mulberries were not in operation long; a great storm two weeks after D-Day knocked out the American Mulberry and badly damaged the British one.

 

From a distance

A closer view

 

Real close

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