Home Videos Helsinki-Tallinn tunnel – The world’s longest undersea rail tunnel

Helsinki-Tallinn tunnel – The world’s longest undersea rail tunnel

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Helsinki-Tallinn tunnel is an ambitious train rail link that will connect the Finnish and Estonian capitals through the bottom of the Gulf of Finland. The tunnel is being designed as a 103 km tunnel that will connect Helsinki-Vantaa airport and the Tallinn airport with two stations in between. The projects is expected to be operational by 2024. Once completed, the tunnel will cut the travel time to around 20 minutes from the two-hour ferry ride used by tens of thousands of commuters.

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