The Department of Transport has been advised that the North Irish Sea Array (NISA) intends to undertake a geophysical survey campaign on the proposed offshore wind farm’s cable corridor area off the coast of counties Dublin, Meath and Louth.

This campaign will start on Wednesday 22 November and will continue for a period of two weeks, subject to weather and operational constraints.

It will be undertaken by SEP Hydrographic and will involve the deployment of a hull-mounted (multibeam echo sounder and high-frequency sub-bottom profiler) and towed geophysical sensors (side-scan sonar, magnetometer and medium-frequency sub-bottom profiler) within the nearshore part of the cable corridor area.

Survey work will be confined to nearshore area of the proposed cable corridor area, a total area of approximately 2.5 sq km. The survey area extends to landfall near Bremore. All operations will be within the 12-nautical-mile limit.

The survey will be conducted by the survey Vessel Ros Áine (callsign EIZG5) on a 12-hour (daylight operation) basis. As the survey vessel will be restricted in its ability to manoeuvre when surveying, due to the deployment of the towed survey sampling equipment for the duration of the survey activities, other vessels are kindly requested to keep a wide berth. The Ros Áine will display appropriate lights and signals.

Coordinates and a map of the survey area as well as contact details can be found in Marine Notice No 74 of 2023, attached below.

The Department of Transport has been advised that the North Irish Sea Array (NISA) intends to undertake a geotechnical site investigation campaign on the proposed offshore wind farm area and cable corridor, off the coast of north Co Dublin, Meath and Louth.

This campaign will be undertaken by N-Sea and Geoquip Marine and will involve the deployment of seabed borehole drilling, cone penetration testing (CPT) and vibrocores from survey vessels at specific locations within the NISA OWF and cable corridor area detailed below.

The campaign will start on Wednesday 1 November and will run for a period of four weeks, subject to weather and operational constraints.

Surveys will be confined to distinct locations within the proposed wind farm array and cable corridor area, a total area of approximately 125 sq km. This wider area forms an irregular shape spanning approximately 16km north-south and 25km east-west at its widest points. The survey area extends to landfall near Bremore. All operations will be within the 12-nautical-mile limit.

The survey area is bounded by points listed and set out in the map included in Marine Notice No 69 of 2023, which is available to download below.

Surveys will be conducted by the Noordhoek Pathfinder (callsign PBYN) and Geoquip Seehorn (callsign 5BSW5) on a 24-hour basis. As the survey vessels will be restricted in their ability to manoeuvre when surveying, due to the deployment of the seabed sampling equipment for the duration of the survey activities, other vessels are kindly requested to keep a wide berth.

The survey vessels will display appropriate lights and signals. Mariners are advised to keep continuous watch on VHF Channel 16 when navigating the area.

Further details, including contact information, can be found in the Marine Notice attached below.

The North Irish Sea Array (NISA) has rescheduled a previously planned geotechnical site investigation campaign on the proposed offshore wind farm area off the coast of north Co Dublin, Meath and Louth.

This campaign will involve the deployment of seabed borehole drilling and cone penetration test (CPT) equipment for continuous sampling and is expected to be completed between today, Friday 4 November and Thursday 8 December, subject to weather and operational constraints.

It will be confined to the proposed NISA offshore wind farm area, which forms an irregular shape spanning 32km north-south and 14km east-west at its widest point. At its closest location, near Rush in Co Dublin, the survey site is 7.4km from the coastline.

The survey will be conducted on a 24-hour basis by the Fugro Synergy survey vessel (callsign C6XR3).

As this vessel will be restricted in its ability to manoeuvre when surveying, due to the deployment of the seabed sampling equipment for the duration of the survey activities, other vessels are kindly requested to keep a wide berth.

An onboard fisheries liaison officer will be available to discuss operations throughout the duration of the survey campaign.

The vessel will display appropriate lights and signals. Mariners are also advised to keep continuous watch on VHF Channel 16 when navigating the area.

Coordinates and a map of the survey area as well as contact details can be found in Marine Notice No 74 of 2022, attached below.

Update: the survey has been rescheduled for 4 November-8 December 2022 and Marine Notice No 69 of 2022 withdrawn.

Following this past week’s deployment of metocean instrumentation, the North Irish Sea Array (NISA) intends to undertake a geotechnical site investigation campaign on the proposed offshore wind farm area off the coast of north Co Dublin, Meath and Louth.

This campaign will involve the deployment of seabed borehole drilling and cone penetration test (CPT) equipment for continuous sampling and is expected to be completed between next Monday 17 October and Sunday 20 November, subject to weather and operational constraints.

It will be confined to the proposed NISA area, which forms an irregular shape spanning 32km north-south and 14km east-west at its widest point. At its closest location, near Rush in Co Dublin, the survey site is 7.4km from the coastline.

The survey will be conducted on a 24-hour basis by the Fugro Synergy survey vessel (callsign C6XR3).

As this vessel will be restricted in its ability to manoeuvre when surveying, due to the deployment of the seabed sampling equipment for the duration of the survey activities, other vessels are kindly requested to keep a wide berth.

An onboard fisheries liaison officer will be available to discuss operations throughout the duration of the survey campaign.

The vessel will display appropriate lights and signals. Mariners are also advised to keep continuous watch on VHF Channel 16 when navigating the area.

Coordinates and a map of the survey area as well as contact details can be found in Marine Notice No 69 of 2022, attached below.