Sea Reach - London Gateway Port - Dolphin Removal & Diving Operations

Mariners are advised that, on or around Tuesday 22nd July 2025, Lifting and Diving operations will commence at the western end of London Gateway Berth 4. Operations are expected to take no longer than 10 days, with works being completed throughout slack water periods. 

The location of the works is indicated by a red box in the chartlet below: 

Lifting operations will be undertaken from a shoreside crane while diving operations will be conducted from the vessel EMILIA D, which will be positioned inside the fender line at LGP Berth 5. No diving will take place during vessel movements.  

When diving is taking place, vessels engaged in diving operations will display the following International Code Flags: 

• By day, International Code Flags ‘Romeo Yankee (RY)’, ‘Alpha (A)’ and a red flag near the diver’s point of entry into the water.  
• By night, illuminated rigid replicas of the International Code Flags ‘Romeo Yankee (RY)’ and ‘Alpha (A)’.  

Any requirements to proceed with caution or at slow speed, will be made in accordance with the procedures set out in the Port of London Authority’s Port Information Guide, under ‘London VTS’, ‘Section 4’ with the International Code Flags ‘Romeo Yankee’ displayed, which are illustrated above. 

The display of these signals will be in addition to any lights or shapes required under local regulations and the International Regulations for Preventing Collisions at Sea.

All participating vessels will maintain a listening watch on VHF Channel 68 and will remain in direct contact with the London Gateway Harbour Master and shift managers. 

Mariners are urged to exercise caution and remain vigilant while navigating in the vicinity of London Gateway.  

Further details will be broadcast as needed by London VTS on VHF channels 68.