Wivenhoe in W.W.2 1943

Part of the mulberry harbour built by Wivenhoe shipyard   The order arrived from the war office to build two Whale spud Pier head units of welded construction infilled with concrete, they were 200 feet long by 60feet wide.
I think this picture shows caissons being built on marshland next to the Shipyard by Dorman and Long, it was part of project Shark.
Initially over 300 of these units were ordered but only one third were completed.

Left click on image for super size.

Wivenhoe Memories collection.