Part of an early medieval river barge was found in February 2013 in the Catharijnesingel in Utrecht. The Utrecht 6 is the oldest medieval barge found in The Netherlands. Only a section is preserved and research at the National Maritime Depot of the Netherlands.

Utrecht 6 research 2013 (Picture: municipality Utrecht).

The bottom planks were made out of one tree. The two side strakes where made of a second tree. Dendro analyses give a felling date of ca. 677 AD.

Drawing of the preserved bottom planks.

• Jansma, E. (2013).
  Dendrochronologisch onderzoek van het scheepje ‘Utrecht 6’
  Digital Collaboratory for Cultural Dendrochronology, Rapportnummer p:2013502.
  Academia.edu.