What year did the Admiralty cease surveying Irish waters?

The cessation of Admiralty surveys in Irish waters occurred in 1960. This decision was influenced by various factors, including the establishment of the Irish national surveying and charting authority which took over the responsibility of surveying and charting these waters. By this time, the Admiralty had already published a substantial number of charts for Ireland and felt that there were sufficient resources and expertise within Ireland to manage these tasks. This marked a significant transition in the management of hydrographic data in the region, emphasizing greater local autonomy in maritime affairs. The shift also reflected broader geopolitical changes and the evolving roles of national authorities in hydrographic surveying.