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UC-6 Thames Estuary: Archaeological Report

Front cover for UC-6 Thames Estuary: Archaeological Report

Project 6552

By Peta Knott

This report covers an assessment of the wreck site reported as being the German minelayer UC-21 or possibly UC-6 located in the Thames Estuary, off the North Foreland, Kent. The work was completed as part of the Heritage at Risk (HAR) Contract for Archaeological Services in Relation to Marine Designation.

The assessment of the site was undertaken as part of a two stage investigation. Stage one consisted of a geophysical survey and stage two consisted of a diver survey of the site, which also involved the local British Sub Aqua Club (BSAC) 326: Canterbury Divers.

A geophysical survey was completed of two potential sites for the U-boat minelayer. At the northern location wreck 7000 has now been identified as a submarine, probably UC-6. Wreck 7001 was identified at the southern location (UKHO 14054) and appears more likely to be the remains of a ship, possibly those of the Grazia.

This was followed up by diver investigations in the area of wreck 7000. where divers had  reported seeing the U-boat sitting on the seabed.

Geophysical data and archival records were used to identify that the submarine is most likely to be UC-6 rather than UC-21.

English Heritage - now Historic England - commissioned Wessex Archaeology to carry out the project. Where this report refers to the work of English Heritage, these functions have been transferred to Historic England.


  • Summary
  • Introduction
  • Assessment objectives and products
  • Methodology
  • Results
  • Discussion
  • Risk Assessment
  • Assessment against non-statutory criteria for scheduling
  • Recommendations
  • Archive
  • References
  • Appendices

Additional Information

  • Publication Status: Completed
  • Pages: 45

If you require an alternative accessible version of this document please contact: Wessex Archaeology, Portway House, Old Sarum Park, Salisbury, Wiltshire SP4 6EB

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