Mac Lir Offshore Wind Limited (MLOWL) is undertaking a geophysical reconnaissance survey within an area of survey off the coast of counties Wicklow and Wexford for a proposed offshore wind energy project.

The survey was expected to commence Sunday 12 March to be completed by Monday 10 April, subject to weather and operational constraints.

The purpose of the survey is to undertake a reconnaissance geophysical survey across an area of surveys that may be suitable for the development of the proposed Mac Lir Offshore Wind Farm (MLOWF).

Conducted by the RV Tom Crean (callsign EIYX3), the survey will be performed using a hull-mounted multibeam echo sounder, sub-bottom profilers, side-scan sonar, magnetometer, and towed ultra high-resolution survey (UHRS) system (with a maximum towed length of 500m).

The work vessel will run widely spaced lines across the planned area of survey on a 24-hour basis, weather dependent.

During operations, the work vessel will be restricted in its ability to manoeuvre. All other vessels operating within the planned area of survey are requested to keep their distance and pass at a minimum speed to reduce vessel wash.

The RV Tom Crean will display appropriate shapes and lights and will conduct communications on VHF Channel 16 with other ships and vessels to notify them of the operations.

Further details including a map, coordinates and contact information can be found in Marine Notice No 12 of 2023, attached below.