Water and mud ingress though a failure in the lining system into the Lötschberg baseline railway tunnel in Switzerland.. The ingress began in February 2020, reoccurred in March 2020 and again on 30 April 2020. A temporary repair is in place until a plan for permanent repair is submitted in Autumn 2020 for approved to implement. See the article on TunnelTalk [ Ссылка ].

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