Marine Notice: Site Investigation Works in Shannon Estuary for Strategic Gas Emergency Reserve

22nd February 2026

Afloat.ie Team

Artist’s impression of Gas Networks Ireland’s selection of Cahiracon, Co Clare as the location for Ireland’s new Strategic Gas Emergency Reserve Credit: Gas Networks Ireland

As notified to the Department of Transport by Gas Networks Ireland, Murphys International Limited (MIL) and Causeway Geotech are carrying out site investigation works within the Shannon Estuary adjacent to the townland of Cahiracon.

The works were set to begin last Monday 16 February and will continue for four months, subject to weather and operational constraints.

The works will include various geophysical surveys and geotechnical site investigations, which are required to inform preliminary design and facilitate environmental assessment in advance of a development application seeking planning permission for the Strategic Gas Emergency Reserve (SGER) project, as Afloat.ie reported on last November.

The site investigations will be carried out by the jack-up barge Causeway Giant 2, the Ocean Supporter (callsign EI-TS-6), Ocean Quest (callsign EI-GW-8), Ocean Spirit (callsign EI-ZG-3) and Ocean Navigator (callsign EI-OI-8).

Further details, including a map and coordinates of the work area and contact information, can be found in Marine Notice No 09 of 2026 attached below.

Downloads

Marine Notice No 09 of 2026 (67 Downloads)

Published in Shannon Estuary

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