A military structure designated 'Ra 160' located near Saint-James, France, in the Manche department of Normandy. The precise nature, historical context, and current condition of this site are not confirmed by the provided web search results, which focus exclusively on contemporary French nuclear policy rather than specific heritage locations. The region of Normandy has a significant military history, particularly from World War II, but no direct link between this designation and any known bunker, battery, or fortified position can be established from the available information.
Further local archival or specialist research would be required to verify its existence, purpose, and period of construction.