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Survey Operations for the Havhingsten Subsea Cable System

Marine Notice No. 35 of 2018
Notice to all Shipowners, Fishing Vessel Owners, Agents, Shipmasters, Skippers, Fishers, Yachtsmen and Seafarers

Irish Part of Interest – Click here to enlarge


The Department of Transport, Tourism and Sport has been advised that Fugro will be carrying out marine operations on behalf of Alcatel Submarine Networks for the Havhingsten Subsea Cable System project. The works are scheduled to commence on the 26th September 2018 and last for approximately 30 days.

The vessel involved will be the ‘MV Fugro Helmert’ (Callsign: ZDNM8)



The vessel will be running hull mounted multibeam eco sounder lines along the proposed route. Towing equipment such as magnetometer and side scan sonar will be used during the shallow water phase, from ca. 105 m of water depth and shallower. The vessel will slow down or stop from time to time to measure the speed of sound in the water, and to perform geotechnical measurements.


Survey Area:










A dynamic programme of survey is to be conducted in several stages, the survey vessel will be deployed within the working area at times and positions determined by client requirements, weather and sea conditions.


Inshore Survey operations will be conducted on a 12-hour basis (day light). Offshore survey operations  will  be  conducted  on  a  24-hour  basis.  Throughout  the  offshore  survey operations,  the  vessel  will  be  displaying  the  shapes  and  lights  prescribed  in  the International Rules for the Prevention of Collisions at Sea (COLREGS) Rule 27, to indicate that the survey vessels are restricted in their ability to manoeuvre.


A listening watch will be maintained on VHF Channel 16, and the vessels will actively transmit an AIS signal.





All mariners are reminded of their responsibilities under the International Collision Regulations and are reminded of  Marine Notice No. 17 of 2007, which gives general advice  in  relation  to  the  activities  of  vessels  engaged  in  survey  work  for hydrographic, seismic, fishing research and underwater operations.


The International Regulations for Prevention of Collisions at Sea (COLREGS) are implemented in Irish law by the Merchant Shipping (Collision Regulations) (Ships and Water Craft on the Water) Order 2012 [S.I. No. 507 of 2012], and the Signals of Distress (Ships) Rules  2012 [S.I.  No.170 of  2012],  see Marine Notice No. 06 of  2013. These Statutory Instruments may be purchased by mail order from Government Publications, Office  of  Public  Works,  52  St.  Stephens  Green,  Dublin  2,  D02  DR67.    Tel:  (01)

6476834/1890-213434 and are also available online at:



Marine Notices are issued purely for maritime safety and navigation reasons and should not be construed as conferring rights or granting permissions.


Irish Maritime Administration,

Department of Transport, Tourism and Sport, Leeson Lane, Dublin 2, D02TR60, Ireland.




For any technical assistance in relation to this Marine Notice, please contact: The Marine Survey Office, tel: +353-(0)1-678 3400.

For general enquiries, please contact the Maritime Safety Policy Division, tel: +353-(0)1-678 3418.

Written enquiries concerning Marine Notices should be addressed to:

Maritime Safety Policy Division, Dept. of Transport, Tourism and Sport, Leeson Lane, Dublin 2, D02 TR60, Ireland. email: or visit us at:


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