New Crown Estate map of Irish Sea includes data update following collapse of Celtic Array wind farm

The geological map of Irish Sea will assist potential new developers
The geological map of Irish Sea (shown in ‘red’) will assist potential new developers

The Crown Estate has published a study by the British Geological Survey summarising the geological conditions of the Irish Sea – which will provide a useful resource for anyone considering development of offshore infrastructure in the region.

The study follows The Crown Estate’s publication of a wide range of data collected for the discontinued Celtic Array offshore wind farm, such as geotechnical and geophysical data as well as sediment sampling.

BGS undertook a detailed assessment of the Irish Sea, combining the Celtic Array data with the best available data from other sources, such as BGS legacy data, regional reports and site investigations by other industries.

The assessment is intended to provide an introduction to developers interested in the region to help inform broad decisions as to ground suitability, highlighting a range of geological factors to be considered in development activity located at a depth of between 0-50m of seabed.

 Will Apps, Development Portfolio Manager at the Crown Estate, said: By making information easily available through the Marine Data Exchange we can help stimulate research, support academia and contribute towards the sustainable development of this part of the seabed, with the ultimate intention of unlocking value over the long term.”

The study area (as shown) incorporates areas of the seabed extending up to the present day coastline within in the UK and Isle of Man waters. The assessment considered nearly 23,500 km² and summarises topography, sediments and processes; the Quaternary history and its impacts; and a review of bedrock distribution and properties. 

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