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The Corrib project is now in the final phase of development, with First Gas expected to flow into the national grid by the end of 2014 or in early 2015. The last key element under construction is the 8km long onshore gas pipeline which connects the offshore pipeline at Glengad to the Bellanaboy Bridge Gas Terminal. 

This onshore pipeline route includes a 4.9km tunnel, which runs under Sruwaddacon Bay, in northwest Mayo.  When completed, it will be longer than the Dublin Port Tunnel and also the longest gas pipeline tunnel in Europe.

Constructing the Corrib gas pipeline tunnel is an extraordinary engineering feat.  This video tells the story of how the tunnel came into being and describes how a specially designed tunnel boring machine called ‘Fionnuala ’, travelled from Germany to make Irish engineering history.

Please press play to watch this 10 minute report.