Maintenance of the Watier Lock at Dunkirk

Port/sPort of Dunkirk
Issue TypePlanned maintenance
ImpactPartial Closure

Lock Watier will be under maintenance from November 23 to the end of July 2023.

The normal capacity of the lock is 350 transit movements during this period. Consequently, the expected transits will have to be reoriented to the largest Charles De Gaulle lock as the first choice, and some of them to the Trystram lock, which is limited to the following:

  • Max draft 8,00 mtrs
  • Beam ≤ 22.00 mtrs
  • LOA for entrance mouvement ≤ 140.00 mtrs
  • LOA for sailing mouvement ≤ 150.00 mtrs

Due to the above situation, the port of Dunkirk will have to deal with a new organisation of berthing priorities:

  • Vessels with tide restrictions will have priorities over other vessels.
  • Vessels that are not subject to tide restriction will be handled in groups to pass the Charles de Gaulle lock in order to maximise/fluidify the port traffic.

If you require any further information, please feel free to contact ISS Dunkirk (