Thames Sea Forts

Sea forts of concrete and steel built to guard the Thames Estuary from enemy mine laying aircraft consisted of circular towers each mounted on four concrete legs rising from the river bed, and connected by bridges. Six of these grouped towers carried A.A. guns; the seventh was a control tower. They were linked to the land by telephone, and manned by R.A. and other specialists.

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Thames Sea Forts are especially designed for saving Thames Estuary from enemy. In sort, these were the amazing defender of the Thames Estuary. Some color pics of these forts shown here