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Fibre Optic Cable Installation Works Continue in Irish Sea This Month

2nd December 2021
File image of the CS Île de Batz in Brest, France
File image of the CS Île de Batz in Brest, France Credit: Hervé Cozanet/

Installation of the Havhingsten fibre optic telecommunication cable system in the Irish Sea inside of the Irish 12-nautical-mile zone is planned for this month.

It follows works this past autumn in the Irish Sea outside of territorial waters, as previously reported on

Works are planned to start on Monday 13 December, subject to weather and full execution of the foreshore licence.

The latest operations on the cable route for the western Irish Sea region, which lands at Loughshinny, will be conducted by the cable installation vessel CS Île de Batz (callsign FOSU).

It will be working on a 24-hour basis and will display appropriate day shapes and lights during reduced visibility and night operations.

All other vessels operating within its work area are requested to keep their distance and pass at minimum speed to reduce vessel wash.

Details of the coordinates of the work area and contact information can be found in Marine Notice No 64 of 2021, which can be downloaded below.


Published in News Update Team

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