A bathymetry survey of pipeline burial depths under Pembroke River and close East of the Cleddau Bridge planned by Survey Vessel Galloper between 8th Sept and 16th Sept 2026

  1. MARINERS ARE HEREBY ADVISED that, from Tuesday 8th September to Wednesday 16th September 2026 a bathymetry survey using multibeam echo sounding and Lidar equipment will take place on the Pembroke River and close East of the Cleddau Bridge (as per the below chartlets). 
  2. Survey work will be conducted from the survey vessels "GALLOPER" who will maintain a listening watch on VHF Ch 12 whilst operating within port limits. 
  3. Surveys will be conducted using fixed Multibeam Echo Sounding from the survey vessel as well as a shore based Lidar system.
  4. Mariners are required to pass the survey vessel at a minimal wake safe speed and a safe distance during survey operations.      
  5. For details of the survey vessels positions in port limits please contact Milford Haven VTS on:
        i.    VHF channel 12
       ii.    Telephone 01646 696136/7
      iii.    Email vts@mhpa.co.uk
  6. Admiralty chart 3275 and Imray C2600.11 refer.
  7. This notice will self-cancel on the 16th September 2026 at 2359hrs.

Figure 2 Survey Vessel Galloper